BRPI1103354A2 - valve system for high frequency compressors - Google Patents
valve system for high frequency compressors Download PDFInfo
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- BRPI1103354A2 BRPI1103354A2 BRPI1103354A BRPI1103354A2 BR PI1103354 A2 BRPI1103354 A2 BR PI1103354A2 BR PI1103354 A BRPI1103354 A BR PI1103354A BR PI1103354 A2 BRPI1103354 A2 BR PI1103354A2
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- valve
- suction
- discharge
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- valve system
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/10—Adaptations or arrangements of distribution members
- F04B39/1073—Adaptations or arrangements of distribution members the members being reed valves
Abstract
SISTEMA DE VÁLVULAS PARA COMPRESSORES DE ALTA FREQUÊNCIA. A presente invenção se refere a sistema de válvulas para compressores alternativos que operam em alta frequência - em especial, em valores superiores a 200 Hz, compreendido por uma junta de cilindro (3); uma placa de sucção (4) contendo pelo menos uma válvula de sucção (42) com extremidade circular (43) pertencente à placa de sucção (4); uma placa (5) compreendendo pelo menos um orifício de sucção (51) e pelo menos um orifício, de descarga (52); pelo menos uma válvula de descarga (6) compreendendo uma lâmina contendo pelo menos um prolongamento ortogonal (63) com extremidade circular (64); e pelo menos um batente de descarga (7) cooperante com a válvula de descarga (6), o batente (7) compreendendo uma peça com perfil inferior provido de pelo menos um rebaixo (72) limitador de movimentação da extremidade (64) da válvula de descarga (6).HIGH FREQUENCY COMPRESSOR VALVE SYSTEM. The present invention relates to valve systems for reciprocating compressors operating at high frequency - in particular at values exceeding 200 Hz comprised of a cylinder gasket (3); a suction plate (4) containing at least one circular end suction valve (42) (43) belonging to the suction plate (4); a plate (5) comprising at least one suction port (51) and at least one discharge port (52); at least one discharge valve (6) comprising a blade containing at least one orthogonal extension (63) with circular end (64); and at least one discharge stop (7) cooperating with the discharge valve (6), the stop (7) comprising a lower profile piece provided with at least one recess (72) limiting movement of the end (64) of the valve discharge (6).
Description
Relatorio Descritivo da Patente de Invengao para nSISTEMA DE VALVULAS PARA COMPRESSORES DE ALTA FREQUENCIA".Descriptive Report of the Invention Patent for Valve System for High Frequency Compressors ".
Campo da InvencaoField of Invention
A presente invengao se refere a um sistema de valvulas para compressores, mais especificamente para compressores alternatives que operam em alta freqiiencia 一 em especial, em valores superiores a 200 Hz.The present invention relates to a valve system for compressors, more specifically for alternative compressors operating at high frequency, in particular at values above 200 Hz.
Fundamentos da Invencao ·Foundations of the Invention ·
Conforme e do conhecimento da tecnica, compressores sao equipamentos que, de forma geral, aumentam a pressao de um gas por meio da redu^ao de seu volume mediante a aplicagao de uma for?a mecanica que, no caso dos compressores alternatives, e normalmente exercida por um pistao no interior de um cilindro. Para exercer ο controle desse fluxo de gas, tais equipamentos utilizam valvulas do tipo palheta, que abrem e fecham de acordo com a diferen^a de pressao entre ο cilindro e a camara de sucgao ou descarga do equipamento. Ocorre1 porem, que os compressores conhecidos normalmente operam comAs is well known in the art, compressors are equipment which generally increase the pressure of a gas by reducing its volume by applying a mechanical force which, in the case of alternative compressors, and usually exerted by a piston within a cylinder. To control this gas flow, such equipment uses vane-type valves, which open and close according to the pressure difference between the cylinder and the suction or discharge chamber of the equipment. However, it is known that known compressors usually operate with
freqQencias que variam em to mo de 50 a 60 Hertz e as valvulas do atual estado da tecnica normalmente sao projetadas, geometrica e dimensionalmente，para: operar nessa faixa de freqiiencia, nao sendo conhecidas valvulas adequadas para operarem com freqiiencias muito elevadas.Frequencies ranging from 50 to 60 Hertz and valves of the present state of the art are typically designed geometrically and dimensionally to operate within this frequency range, and are not known to be suitable for operating at very high frequencies.
Os sistemas de valvulas apresentados nos documentos US 2001/001-7162 e BRValve systems presented in US 2001 / 001-7162 and BR
PI9202785 sao exemplos caracteristicos do atual estado da tecnica. uma vez que apresentam valvulas de sucgao e de descarga com geometrias muito proximas, definidas por palhetas substancialmente alongadas fixas as respectivas placas por uma ijnica regiao de fixagao 一 ο que deixa tais pe?as extremamente vulneraveis a danos e eventuais rupturas oriundas da elevagao da intensidade das for^as solicitantes inerentes a operagoes em freqiiencias elevadas.PI9202785 are characteristic examples of the current state of the art. since they feature suction and discharge valves with very close geometries, defined by substantially elongated vanes attached to the respective plates by a unique fixing region ο ο which leaves such parts extremely vulnerable to damage and possible ruptures arising from elevation of intensity of the requesting forces inherent in high frequency operations.
O documento US 7390176 tambem descreve uma valvula de sucgao com formato alongado - mais especificamente com geometria em forma de “Y" — que preve ο apoio da extremidade da valvula sobre a placa de base, construgao que tambem poderia causar maior desgaste de ambas as pegas em opera^des a freqiiencias elevadas, alem de incorrer nos problemas de resistencia a esforgos ja mencionados. Constru9§o analogs tambem e pre vista no documento CN 201202617 que, alem de nao mencionar a possibilidade de utilizagao em condigoes de opera?ao a alta freqiiencia, tambem preve que a extremidade das valvulas fique apoiada sobre placa de base. Percebe-se, portanto, que ο atual estado da tecnica carece de um sistema deUS 7390176 also describes an elongated suction valve - more specifically with "Y" geometry - which provides for the support of the valve end over the baseplate, a construction that could also cause further wear on both handles. In high frequency operations, besides incurring the stress resistance problems mentioned above, construction of analogs is also foreseen in document CN 201202617 which, in addition to not mentioning the possibility of use under high operating conditions. also often provides for the end of the valves to be supported by the base plate, so it is clear that the current state of the art lacks
valvulas projetado especificamente para a utiliza^ao em compressores que operem avalves specifically designed for use in compressors operating at
frequencias elevadas, que apresente solugdes geometricas, estruturais e dimensionais adequadas para resistir aos esforgos solicitantes nessas condig5es. Obietivos da Invencaohigh frequencies, which has adequate geometrical, structural and dimensional solutions to withstand the stresses under these conditions. Objectives of the Invention
Portanto, e um dos objetivos da presente invengao ρ rover sistema de valvules destinado, especificamente, a utilizagao com compressores que operam em aIta frequencia, passivel de ser utilizado, inclusive, em compressores cujas freqiiencias ultrapassem ο valor de 200 Hz.Therefore, it is one of the objectives of the present invention to provide a valve system specifically intended for use with high frequency compressors which may be used even in compressors whose frequencies exceed 200 Hz.
Outro dentre os objetivos da presente invengao e revelar um sistema.de valvules para compressores de alta frequencia que apresente caracteristicas geometricas e dimensionais capazes de resistir aos esforgos em tais condigdes de operagao.Another of the objectives of the present invention is to disclose a valve system for high frequency compressors which has geometrical and dimensional characteristics capable of withstanding the stresses in such operating conditions.
E tambem um objetivo da presente invengao revelar as caracteristicas dimensionais mais adequadas para um sistema de valvules para utilizagao em compressores operantes em freqiiencias elevadas.It is also an object of the present invention to disclose the most suitable dimensional characteristics for a valve system for use in high frequency operating compressors.
Sumario da InvencaoSummary of the Invention
A presente invengao atinge os objetivos acima por meio de um sistema de valvules para compressores de alta freqCiencia, do tipo compreendido por placas, valvulas de sucgao e valvulas de descarga para operagao em cilindros de compressores nos quais sao presos com ο auxilio;de:rebites e piFi©Sfsendo-que*dito‘sistema—coFnpreende uma junta de cilindro; uma placa de sucgao cooperante com a junta de cilindro, sendo que a placa de sucgao compreende um corpo substancialmente circular provido de trecho vazado central que origina pelo menos—tima^valvula=de^suG§§o=Gom〜extremidade circular; uma placa cooperante com a placa de sucgao, tal placa compreendendo pelo menos um orificio de sucgao e pelo menos um orificio de descarga; pelo menos uma valvula de descarga cooperante com a placa, sendo que a valvula de descarga compreende uma lamina contendo pelo menos um prolongamento ortogonal com extremidades circulares; e pelo menos um batente de descarga cooperante com a valvula de descarga, ο batente compreendendo uma pega com perfil inferior provido de pelo menos um rebaixo Iimitador de movimentagao das extremidades da valvula de descarga.The present invention achieves the above objectives by means of a high frequency compressor valve system of the type comprised of plates, suction valves and discharge valves for operation on compressor cylinders in which they are secured with the aid of: rivets and pfiFfWhich * said * system - comprises a cylinder joint; a suction plate cooperating with the cylinder gasket, wherein the suction plate comprises a substantially circular body provided with a central hollow section that yields at least "optimum" = suction = circular end; a plate cooperating with the suction plate, such plate comprising at least one suction orifice and at least one discharge orifice; at least one outlet valve cooperating with the plate, wherein the outlet valve comprises a blade containing at least one orthogonal extension with circular ends; and at least one discharge stop cooperating with the discharge valve, the stop comprising a lower profile handle provided with at least one recess limiting movement of the discharge valve ends.
A referida inven^ao compreende, portanto, meios para permitir que tal sistema de valvulas seja utilizado em compressores que operam em altas freqiiencias, inclusive superiores a 200 Hz.Said invention therefore comprises means for enabling such a valve system to be used in compressors operating at high frequencies, even exceeding 200 Hz.
Em uma concretizagao preferenciat da presente invengao, a placa de sucgao apresenta geometria substancialmente circular e valvulas de sucQao engastadas ao seu corpo ao Iongo de Iinhas de engaste, de modo que a placa e as valvulas de sucgao sao um corpo unico.In a preferred embodiment of the present invention, the suction plate has substantially circular geometry and suction valves fitted to its body by the crimping line, so that the suction plate and valves are a single body.
Tambem na concretizagao preferencial da presente inven^ao’ tais valvulas de sucgao apresentam comprimento total entre 5,0 e 5,5 milimetros.Also in the preferred embodiment of the present invention such suction valves have a total length of between 5.0 and 5.5 millimeters.
Ademais1 preferencialmente a placa de suc9ao, as valvulas de sucgao e a valvula de descarga possuem espessura compreendida entre 0,05 e 0,11 mitimetros — preferencialmente 0,0762 milimetros.Moreover, preferably the suction plate, the suction valves and the discharge valve have a thickness between 0.05 and 0.11 meters - preferably 0.0762 millimeters.
Saliente-se ainda que, em uma concretizagao preferencial da invengao, tambem a valvula de descarga apresenta comprimento total entre 5,5 e 6,0 milimetros.It is further noted that in a preferred embodiment of the invention, the outlet valve also has a total length of between 5.5 and 6.0 millimeters.
Descrigao Resumida dos DesenhosBrief Description of the Drawings
As figuras mostram:The figures show:
Figura 1 - ilustra uma vista frontal de uma placa de valvula e valvula de sucgao utilizada no atual estado da tecnica;Figure 1 illustrates a front view of a valve plate and suction valve used in the current state of the art;
Figura 2 - mostra uma vista em perspectiva explodida do sistema de valvules para compressores construido de a cord ο com uma concretizagao preferencial da presente invengao;Figure 2 shows an exploded perspective view of the valve system of compressors constructed of a rope with a preferred embodiment of the present invention;
Figura 3.1 - mostra uma vista posterior da montagem da valvula de sucgao do sistema da presente invengao;Figure 3.1 shows a rear view of the suction valve assembly of the system of the present invention;
Figura 3.2 - mostra uma vista lateral do objeto ilustrado na Figura 3.1 ； Figura 3.3 - mostra uma vista frontal do objeto ilustrado na Figura 3.1;Figure 3.2 - shows a side view of the object illustrated in Figure 3.1 ； Figure 3.3 - shows a front view of the object illustrated in Figure 3.1;
Figura 4 - mostra um detalhe ampliado das valvulas de sucgao iIustradas na Figura 3.1 ；Figure 4 - shows an enlarged detail of the suction valves shown in Figure 3.1.
Figura 5.1 - mostra uma vista frontal da montagem da valvula de descarga do sistema objeto da presente invengao; Figura 5：2 -mostFa uma vista-lateral do objeto ilustrado η a Figura 5.1 ；Figure 5.1 shows a front view of the discharge valve assembly of the system object of the present invention; Figure 5 ： 2 -mostFor a side view of the illustrated object η a Figure 5.1 ；
Figura 5.3 - mostra uma vista posterior do objeto ilustrado na Figura 5:1;Figure 5.3 shows a rear view of the object illustrated in Figure 5: 1;
Figura 6 - mostra um detalhe ampliado da valvula de descarga do sistema da presente invengao, na qual aparece hachurada a regiao efetiva da valvula de descarga;Figure 6 shows an enlarged detail of the discharge valve of the system of the present invention in which the effective discharge valve region appears hatched;
Figura 7 - mostra uma vista Iatera丨 do batente de descarga do sistema de valvulas objeto da presente invengao; eFigure 7 shows an Iatera view of the valve system discharge stop object of the present invention; and
Figura 8 - mostra uma vista superior do batente de descarga ilustrado na Figura 7.Figure 8 - shows a top view of the discharge stop illustrated in Figure 7.
Descrioao Detalhada da InvencaoDetailed Description of the Invention
A Figura 1 anexa ilustra uma placa de sucgao 1 exemplificativa do atual estado da tecnica, que apresenta geometria substancialmente quadrangular sobre a qual e presa, por meio de elementos de fixagao independentes 21, uma valvula de sucgao tipo palheta 2 de formato alongado. Cabe salientar que, em geral’ tais valvulas apresentam uma area de fixagao 22’ uma regiao intermediaria alongada 23 e, finalmente, ο elemento 24 que efetivamente fica disposto sobre ο orificio de sucgao (nao mostrado) da placa 1.The accompanying Figure 1 illustrates an exemplary suction plate 1 of the present state of the art, which has substantially quadrangular geometry over which an elongate-shaped vane suction valve 2 is secured by independent fasteners 21. It should be noted that in general 'such valves have a clamping area 22' an elongated intermediate region 23 and finally the element 24 which is effectively disposed over the suction port (not shown) of the plate 1.
Vale esclarecer que, em geral, as valvulas de sucgao e descarga usualmente utilizadas em compressores que operam em freqdencias que variam entre 20 e 75 Hz apresentam espessuras entre 0,152 e 0,254 milimetros e comprimento total variando entre e 30 milimetros, ο que resuIta em pegas que possuem uma determinada frequencia natural de vibragao que, consequentemente, acarreta em Iimitagao na freqiiencia com a qua! podem ser utilizadas de forma adequada. t·It is worth clarifying that, in general, the suction and discharge valves usually used in compressors operating at frequencies ranging from 20 to 75 Hz have thicknesses between 0.152 and 0.254 millimeters and total length ranging from 30 millimeters, which results in handles that have a certain natural frequency of vibration which, consequently, causes imitation on the frequency with which can be used properly. t ·
O sistema de valvulas proposto na presente invengao e CARACTERIZADO pelo desenho do contomo das valvulas de sucgao e descarga conforme ilustrado na Figura 2, que apresenta uma vista em perspectiva explodida do sistema com suas partes constituintes tomadas em separado, quais sejam: junta do cilindro 3，placa de sucgao 4， placa de valvula 5，valvula de descarga 6，batente de descarga 7，rebites 8 e pinos 9.The valve system proposed in the present invention is CHARACTERIZED by the contour drawing of the suction and discharge valves as illustrated in Figure 2, which shows an exploded perspective view of the system with its separate constituent parts, namely: cylinder gasket 3 ， Suction plate 4 ， valve plate 5 ， discharge valve 6 ， discharge stop 7 ， rivets 8 and pins 9.
A placa de sucgao 4 - tambem itustrada nas Figuras 3.1 a 4 - apresenta geometria substancialmente circular e Iinhas de corte ou um trecho vazado central 41 que resulta em .duas pequenas valvulas de sucgao 42 com extremidades circulares 43，sendo que estes ijltimos efetivamente constituem os elementos de fechamento dos orificios de sucgao 51 da placa 5.The suction plate 4 - also shown in Figures 3.1 to 4 - has substantially circular geometry and cut lines or a central hollow section 41 which results in two small suction valves 42 with circular ends 43 ， these latter actually being the same. closing elements of suction holes 51 of plate 5.
. E importante salientar os componentes de sucgao da presente invengao sao. Importantly, the suction components of the present invention are
constituidos por uma pega unica na qual as valvulas sao engastadas a placa de sucgao 4, sendo que as Iinhas de engaste 44 conferem a pega grande resistencia contra rupturas eventualmente oriundas da movimenta^ao das extremidades circulares 43 da valvula quando da operagao a frequeneias elevadas——lembrando-se que no atual estado da tecnica apresentam comprimentos da ordem de 10 a 30 milimetros, enquanto ο comprimento total da valvula 42 (incluindo a extremidade 43) totaliza cerca de 5,35 milimetros.They consist of a single handle in which the valves are fitted to the suction plate 4, and the crimping lines 44 give the handle great resistance against ruptures possibly resulting from the movement of the circular ends 43 of the valve when operating at high frequencies— - Remember that in the present state of the art they have lengths of the order of 10 to 30 millimeters, while the total length of the valve 42 (including the end 43) totals about 5.35 millimeters.
Vale esclarecer que a Iinha de engaste 44 e definida pela junta do cilindro 3 que fica Iocalizada entre a placa de sucgao 4 e ο cilindro do compressor (nao mostrado) e, portanto, a regiao de apoio da valvula de sucgao 42 - que corresponde a placa de sucgao 4 - fica definida entre a junta do cilindro 3 e a placa de valvula 5.It is to be noted that the crimping line 44 is defined by the cylinder gasket 3 which is located between the suction plate 4 and the compressor cylinder (not shown) and therefore the support region of the suction valve 42 - which corresponds to suction plate 4 - is defined between cylinder gasket 3 and valve plate 5.
Ademais1 a espessura da placa de sucgao 4 e de cerca de 0,0762 milimetros (quando no atual estado da tecnica esse valor vai de 0,152 a 0,254 milimetros), sendo que devido a espessura reduzida, a rigidez caracteristica da pega ainda fica dentro de Iimites nos quais a eficiencia de bombeamento e elevada.In addition1 the thickness of the suction plate 4 is about 0.0762 millimeters (when in the current state of the art this value ranges from 0.152 to 0.254 millimeters), and due to the reduced thickness, the characteristic stiffness of the handle is still within limits. in which pumping efficiency is high.
Para a montagem, a placa de sucgao 4 fica posicionada entre a placa de valvula 5 e a junta do cilindro 3, sendo que esses tres elementos sao presos ao cilindro do compressor (nao mostrado) por meio de elementos de fixagao adequados a serem posicionados nos orificios distais 10. Saliente-se que a junta do cilindro 3 possui um vao central 31 para possibilitar a movimentagao das valvulas de sucgao 42 com extremidades circulares 43 da placa de sucgao 4.For assembly, suction plate 4 is positioned between valve plate 5 and cylinder gasket 3, and these three elements are secured to the compressor cylinder (not shown) by suitable fasteners to be positioned on the Distal orifices 10. It should be noted that the cylinder gasket 3 has a central span 31 to enable movement of the suction valves 42 with circular ends 43 of the suction plate 4.
Ja a valvula de descarga 6 do sistema objeto da presente inven^ao - meihor ilustrada nas Figuras 5.1 a 6 - e compreendida por uma lamina inteiriga com cerca de 0,0762 milimetros de espessura，definida por uma haste convexa 61 de cujas extremidades prolongam-se duas hastes laterals anguladas 62 que se estendem em prolongamentos ortogonais 63 com extremidades circulares 64, as quais efetivamente constituem os elementos que se sobrepoem aos orificios de descarga 52 da placa de valvula 5.The outlet valve 6 of the system object of the present invention - best illustrated in Figures 5.1 to 6 - and comprised of an integral blade about 0.0762 millimeters thick, defined by a convex stem 61 from whose ends extend. there are two angled side rods 62 extending orthogonal extensions 63 with circular ends 64, which effectively constitute the elements overlapping the discharge ports 52 of the valve plate 5.
A montagem da valvula de descarga 6 sobre a placa de valvula 5 e feita com ο auxilio de um batente de-descarga 7 representado nas Figuras 7 e 8, definido por uma pega espessa e que, nesta representagao em forma de W, possui, em suas hastes distais， orificios 71 para acoplamento dos rebites 8 e pinos 9，sendo que seu perfil inferior apresenta um rebaixo em seu trecho central 72 ο qual atua, efetivamente, como Iimitador de abertura das extremidades circulares 64 da valvula de descarga 6. ■ Saliente-se que ο comprimento total da haste 63 somada a extremidade circular 64The assembly of the discharge valve 6 on the valve plate 5 is made with the aid of a discharge stop 7 shown in Figures 7 and 8, defined by a thick handle and which, in this W-shaped representation, has in its distal rods ， holes 71 for coupling rivets 8 and pins 9 ， with its lower profile having a recess in its central section 72 ο which effectively acts as a limiting device for opening the circular ends 64 of discharge valve 6. ■ Surface that the total length of the rod 63 plus the circular end 64
da valvula de descarga 6 totaliza 5,85 milimetros - portanto, tambem significativamente menor que ο usualmente conhecido.of the discharge valve 6 totals 5.85 millimeters - therefore also significantly smaller than is commonly known.
O sistema apresentado difere tambem dos convencionais por apresentar quantidade de valvules e orificios de s'ucgao e descarga diferente das riormalmente observadas nos similares conhecidos, posto conter duas entradas de sucgao 51 e dois orificios de descarga 52 - quando usualmente existe apenas uma valvula para cada fun^ao.The presented system also differs from the conventional ones in that it presents different amount of suction and discharge valves and orifices different from those observed in similar ones, since it contains two suction inlets 51 and two discharge orifices 52 - when there is usually only one valve for each one. function.
Vale esclarecer, ainda, que ο sistema apresentado, alem de poder ser utilizado com freqiiencias de operagao superiores as convencionais 一 e，ate, superiores a 200 Hz 一 tambem pode ser empregado em cilindros com diametros variando entre 8 a 12 milimetros.It is also important to clarify that the presented system, besides being able to be used with operating frequencies higher than the conventional ones - and, even, above 200 Hz - can also be used in cylinders with diameters ranging from 8 to 12 millimeters.
Cabe salientar que em bora tenham sido mostradas formas construtivas preferenciais da presente invengao, fica entendido que eventuais omiss5es, substituigoes e alterag5es construtivas podem ser feitas por um tecnico versado no assunto, sem se afastar do espirito e escopo da protegao requerida. E tambem expressamente previsto que todas as combinagdes dos elementos que desempenham a mesma fungao substancialmente da mesma forma para alcan^ar os mesmos resuItados estao dentro do escopo da invengao. SubstituigSes de elementos de uma modalidade descrita por outros sao tambem totalmente pretendidos e contempladosIt should be noted that although preferred constructive forms of the present invention have been shown, it is understood that any omissions, substitutions and constructive alterations may be made by one of ordinary skill in the art without departing from the spirit and scope of the required protection. It is also expressly provided that all combinations of the elements that perform the same function in substantially the same way to achieve the same results are within the scope of the invention. Element substitutions of one embodiment described by others are also fully intended and contemplated.
Deve, no entanto, ser entendido que a descrigao fornecida com base nas figuras acima se refere apenas a algurnas das concretizagSes possiveis para ο sistema da presente invengao, sendo que ο real escopo do objeto da invengao encontra-se definidoIt should, however, be understood that the description provided on the basis of the above figures refers only to some of the possible embodiments for the system of the present invention, and the actual scope of the object of the invention is defined.
nas reivindrcagdes apensas.in the appended claims.
Claims (6)
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BRPI1103354 BRPI1103354A2 (en) | 2011-07-04 | 2011-07-04 | valve system for high frequency compressors |
| PCT/BR2012/000212 WO2013006932A1 (en) | 2011-07-04 | 2012-06-21 | Valve system for high frequency compressors |
| ARP120102425 AR087058A1 (en) | 2011-07-04 | 2012-07-04 | VALVE SYSTEM FOR HIGH FREQUENCY COMPRESSORS |
| TW101124069A TW201314039A (en) | 2011-07-04 | 2012-07-04 | Valve system for high frequency compressors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BRPI1103354 BRPI1103354A2 (en) | 2011-07-04 | 2011-07-04 | valve system for high frequency compressors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BRPI1103354A2 true BRPI1103354A2 (en) | 2013-07-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BRPI1103354 BRPI1103354A2 (en) | 2011-07-04 | 2011-07-04 | valve system for high frequency compressors |
Country Status (4)
| Country | Link |
|---|---|
| AR (1) | AR087058A1 (en) |
| BR (1) | BRPI1103354A2 (en) |
| TW (1) | TW201314039A (en) |
| WO (1) | WO2013006932A1 (en) |
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| US7753894B2 (en) | 2004-04-27 | 2010-07-13 | Smith & Nephew Plc | Wound cleansing apparatus with stress |
| HUE043133T2 (en) | 2007-11-21 | 2019-07-29 | Smith & Nephew | Wound dressing |
| GB201015656D0 (en) | 2010-09-20 | 2010-10-27 | Smith & Nephew | Pressure control apparatus |
| US9084845B2 (en) | 2011-11-02 | 2015-07-21 | Smith & Nephew Plc | Reduced pressure therapy apparatuses and methods of using same |
| US9901664B2 (en) | 2012-03-20 | 2018-02-27 | Smith & Nephew Plc | Controlling operation of a reduced pressure therapy system based on dynamic duty cycle threshold determination |
| US9427505B2 (en) | 2012-05-15 | 2016-08-30 | Smith & Nephew Plc | Negative pressure wound therapy apparatus |
| WO2016041198A1 (en) * | 2014-09-19 | 2016-03-24 | 广东美芝制冷设备有限公司 | Compressing mechanism for compressor |
| JP6991067B2 (en) | 2014-12-22 | 2022-01-12 | スミス アンド ネフュー ピーエルシー | Negative pressure closure therapy equipment and methods |
| CN106593829A (en) * | 2017-01-19 | 2017-04-26 | 安徽美芝制冷设备有限公司 | Exhaust valve plate for compressor, exhaust valve module and compressor |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT290000B (en) * | 1969-02-10 | 1971-05-10 | Hoerbiger Ventilwerke Ag | Valve set for reciprocating compressors |
| BR9002787A (en) * | 1990-06-08 | 1991-12-10 | Brasil Compressores Sa | VALVE FOR HERMETIC COMPRESSOR |
| US5140748A (en) * | 1991-08-12 | 1992-08-25 | Tecumseh Products Company | Method of manufacturing plate suction valve |
| AUPQ221499A0 (en) * | 1999-08-13 | 1999-09-02 | Orbital Engine Company (Australia) Proprietary Limited | Compressor valve arrangement |
| JP2001123956A (en) * | 1999-10-25 | 2001-05-08 | Toyota Autom Loom Works Ltd | Intake valve structure in variable displacement compressor |
| KR20010084549A (en) | 2000-02-26 | 2001-09-06 | 이충전 | A valve device for compressor form air-tight type retern pose |
| US7390176B2 (en) | 2001-10-05 | 2008-06-24 | Carrier Corporation | Multi-port suction reed valve with optimized tips |
| US7390177B2 (en) * | 2003-05-22 | 2008-06-24 | Danfoss Compressors Gmbh | Piston compressor, particularly a hermetic refrigerant compressor |
| US20090291007A1 (en) * | 2006-04-27 | 2009-11-26 | Matsushita Electric Industrial Co., Ltd. | Hermetic compressor |
| CN201202617Y (en) | 2008-07-01 | 2009-03-04 | 华意压缩机股份有限公司 | High anti-impact performance compressor valves |
-
2011
- 2011-07-04 BR BRPI1103354 patent/BRPI1103354A2/en not_active IP Right Cessation
-
2012
- 2012-06-21 WO PCT/BR2012/000212 patent/WO2013006932A1/en active Application Filing
- 2012-07-04 TW TW101124069A patent/TW201314039A/en unknown
- 2012-07-04 AR ARP120102425 patent/AR087058A1/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| TW201314039A (en) | 2013-04-01 |
| WO2013006932A1 (en) | 2013-01-17 |
| AR087058A1 (en) | 2014-02-12 |
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| B08K | Lapse as no evidence of payment of the annual fee has been furnished to inpi (acc. art. 87) |
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