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EP1437508B1 - Soupape annulaire intégrée dans le piston d'un compresseur - Google Patents

Soupape annulaire intégrée dans le piston d'un compresseur Download PDF

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Publication number
EP1437508B1
EP1437508B1 EP03000218A EP03000218A EP1437508B1 EP 1437508 B1 EP1437508 B1 EP 1437508B1 EP 03000218 A EP03000218 A EP 03000218A EP 03000218 A EP03000218 A EP 03000218A EP 1437508 B1 EP1437508 B1 EP 1437508B1
Authority
EP
European Patent Office
Prior art keywords
piston
housing
annular groove
sealing ring
chamber
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP03000218A
Other languages
German (de)
English (en)
Other versions
EP1437508A1 (fr
Inventor
Wen-San Jhou
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to DE60309280T priority Critical patent/DE60309280T2/de
Priority to AT03000218T priority patent/ATE343723T1/de
Priority to EP03000218A priority patent/EP1437508B1/fr
Publication of EP1437508A1 publication Critical patent/EP1437508A1/fr
Application granted granted Critical
Publication of EP1437508B1 publication Critical patent/EP1437508B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • F04B39/0005—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 adaptations of pistons
    • F04B39/0016—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 adaptations of pistons with valve arranged in the piston
    • 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
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/10—Valves; Arrangement of valves
    • F04B53/12—Valves; Arrangement of valves arranged in or on pistons
    • F04B53/121—Valves; Arrangement of valves arranged in or on pistons the valve being an annular ring surrounding the piston, e.g. an O-ring
    • 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
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/10—Valves; Arrangement of valves
    • F04B53/12—Valves; Arrangement of valves arranged in or on pistons
    • F04B53/123—Flexible valves

Definitions

  • the present invention relates to a compressor, and more particularly to a compressor having an improved valved piston device.
  • Typical compressors comprise a piston slidably received in a piston housing and a sealing ring solidly engaged on the piston and engaged between the piston and the piston housing.
  • the pistons of the typical compressors have no valves provided therein, such that the typical piston or the sealing ring may be easily damaged.
  • a number of valve members are required for controlling the air into and out of the piston housing.
  • valved pistons comprise a complicated valved piston device for the compressors that may not be easily manufactured and assembled together and that may not be effectively operated.
  • EP 312 597 relates to a piston device for a compressor comprising a free moving sealing.
  • US 6,200,110 relates to an air compressor including a housing having a tube extended from the top and having a passage communication the housing and having a tapered surface.
  • the present invention has arisen to mitigate and/or obviate the afore-described disadvantages of the conventional compressors.
  • the primary objective of the present invention is to provide a compressor including a piston device having a sealing ring loosely engaged therein for preventing the sealing ring from solidly engaging with the piston housing and for preventing the piston from being easily damaged.
  • the other objective of the present invention is to provide a compressor including a piston device having a number of openings and an annular groove formed therein for loosely receiving the sealing ring and for allowing the openings to be communicated with the environment when the sealing ring is loosely received in the annular groove of the piston device.
  • the further objective of the present invention is to provide a compressor including a piston device having a valve blade for blocking a conduit and for allowing the air to flow into the cylinder housing only and for preventing the air from flowing out of the cylinder housing.
  • the still further objective of the present invention is to provide a compressor including a piston device having a valve blade for blocking a number of conduits, and having a sealing ring received in an inclined outer annular groove of the piston, for forming a double security structure.
  • valved piston device for a compressor, the valved piston device comprising a housing including a chamber formed therein, a piston slidably received in the chamber of the housing, the piston including an outer peripheral portion having an annular groove formed therein and defined by an inclined inner peripheral surface, and including an upper portion having a plurality of openings formed therein and communicating with the annular groove of the piston, and a sealing ring received in the annular groove of the piston.
  • the inclined inner peripheral surface of the piston includes a lower portion having a diameter greater than that of the sealing ring for forming a lower portion of the annular groove of the piston and for forcing the sealing ring to engage with the housing, and includes an upper portion having a diameter less than that of the sealing ring for forming an upper portion of the annular groove of the piston and for loosely receiving the sealing ring in the upper portion of the annular groove of the piston, the openings of the piston are communicating with the annular groove of the piston and communicating with the chamber of the housing when the sealing ring is loosely received in the upper portion of the annular groove of the piston.
  • the housing includes a tube extended outward therefrom and includes a passage formed therein and communicating with the chamber of the housing and communicating with the tube, for allowing the air in the chamber of the housing to be forced to flow through the passage of piston and to flow through the tube when the piston is moved toward the tube.
  • the piston includes a plate disposed on top thereof, and means for securing the plate to the piston for defining the upper portion of the piston.
  • the piston further includes at least one conduit formed therein and communicating with the chamber of the housing with an environment, and a valve blade for selectively blocking the conduit of the piston and for allowing the air to flow through the conduit of the piston and to flow into the chamber of the housing when the piston is moved in a direction away from the housing.
  • the valve blade includes a first end or a middle or a center portion secured to the piston and includes at least one arm extended therefrom for blocking the conduit of the piston.
  • the conduits may be arranged in a circle in the piston.
  • the valve blade includes a circular shape having a center portion secured to the piston and having a peripheral portion for blocking the conduits of the piston.
  • the openings of the piston may be opened toward a radially outer peripheral portion of the piston.
  • a prior art valved piston device for a cylinder or an actuator or an air compressor comprises a cylinder housing 3 including a chamber 30 (FIG. 4) formed therein for slidably receiving a piston 1 therein.
  • the housing 3 includes a passage 31 formed therein for communicating the chamber 30 of the housing 3 with a tube 32 which may direct or guide or introduce the pressurized air or compressed air out of the cylinder housing 3.
  • the piston 1 includes a rod 11 extended therefrom and extended outward of the housing 3 and having an orifice 12 formed therein for coupling to and for being driven by a motor (not shown), and for allowing the piston 1 to be moved along the housing 3 in a reciprocating action by the motor (not shown).
  • the piston 1 includes an annular groove 13 formed in the outer peripheral portion for receiving a sealing ring 2 therein, and formed or defined by an inner peripheral surface 16 that is inclined or tilted relative to the longitudinal direction or axis of the piston rod 11 and the piston 1.
  • the sealing ring 2 is provided for making an air tight seal between the piston 1 and the housing 3.
  • the inclined inner peripheral surface 16 of the piston 1 includes a lower peripheral portion having a diameter greater than that of the sealing ring 2, for forcing the sealing ring 2 radially outward to engage with the housing 3 and to make an air tight or a water tight seal with the housing 3 (FIG. 5).
  • the inclined inner peripheral surface 16 of the piston 1 includes an upper peripheral portion 18 having a diameter less than that of the sealing ring 2 (FIG. 4), for loosely receiving the sealing ring 2, and for allowing the sealing ring 2 to be disengaged from the housing 3.
  • the piston 1 includes an upper portion 10 having three or more openings 14 formed therein and communicating the annular groove 13 of the piston 1 with the chamber 30 of the housing 3.
  • the three or more openings 14 are arranged in a circle that has a diameter less than that of the upper peripheral portion 18 of the inclined inner peripheral surface 16 of the piston 1, but has a diameter greater than that of the sealing ring 2, best shown in FIGS. 2, 4, 5, for allowing the air in the chamber 30 of the housing 3 to flow out through the openings 14 and the annular groove 13 of the piston 1 and to flow bypass the sealing ring 2 and then to flow out of the housing 3 when the sealing ring 2 is loosely received in the upper portion of the annular groove 13, best shown in FIG. 4.
  • the air may also flow through the annular groove 13 and the openings 14 of the piston 1 and then may flow bypass the sealing ring 2 and then may flow into the chamber 30 of the housing 3 when the sealing ring 2 is loosely received in the upper portion of the annular groove 13.
  • the piston 1 may be moved up and down along the housing 3 in a reciprocating action by the typical motor (not shown).
  • the typical motor not shown
  • the sealing ring 2 is forced toward the lower portion 17 of the inclined inner peripheral surface 16 of the piston 1 and thus may be forced to engage with the housing 3 such that the air in the chamber 30 of the housing 3 may be forced into the tube 32 through the passage 31 (FIG. 5).
  • the piston 1 moves downward or away from the tube 32, the air may flow into the chamber 30 of the housing 3 via the annular groove 13 of the piston 1 and the notches 14 of the piston 1.
  • the air may then be forced into the tube 32 again when the piston 1 is forced toward the tube 32 again.
  • the air may thus be effectively forced through the tube 32 without the other valve members.
  • the formation or the provision of the openings 14 that are arranged in a circle in the piston 1 may facilitate the evenly flowing of the air bypass the sealing ring 2, even when the sealing ring 2 is unevenly received in the annular groove 13 of the piston 1 and when the sealing ring 2 blocks some of the openings 14 of the piston 1.
  • the piston 1 may include a screw hole 101 formed therein, and a plate 19 having the openings 14 formed therein and having an aperture 102 formed in the middle portion thereof for receiving a fastener 104 which may be threaded with the screw hole 101 of the piston 1 and which may secure the plate 19 onto the top of the piston 1, for forming the upper portion 10 of the piston 1.
  • a washer 103 may be engaged between the plate 19 and the fastener 104.
  • FIGS. 7-9 illustrated are other prior art valved piston devices which includes the openings 14 that are opened toward the radially outer peripheral portion of the upper portion 10 of the piston 1.
  • the openings 14 may be arranged parallel to each other (FIG. 8) or arranged radially and opened radially outward (FIGS. 7, 9).
  • the air may also flow through the annular groove 13 and the openings 14 of the piston 1 and then may flow bypass the sealing ring 2 and then may flow into the chamber 30 of the housing 3 when the sealing ring 2 is loosely received in the upper portion of the annular groove 13.
  • the piston 1 includes one conduit 20 (FIGS. 10, 11, 12, 16), or two conduits 20 (FIGS. 13, 17), or more conduits (FIGS. 14, 15, 18, 19) formed therein and formed through the piston 1 for communicating the chamber 30 of the housing 3 with the environment, and for allowing the air to flow into and outward of the chamber 30 of the housing 3.
  • the piston 1 includes one or more projections 21 provided or extended from the upper portion 10 thereof.
  • a valve blade 22 includes one end portion secured to the piston 1 with the projections 21 (FIGS.
  • the valve blade 22 may include various kinds of shapes having a middle or a center portion secured to the piston 1 with the projections 21, and having the other portion, such as the peripheral portion for biasing against the upper portion 10 of the piston 1 and for blocking the conduits 20 of the piston 1 respectively.
  • the spring blade 22 may include a circular shape (FIGS. 15, 19), or may include two (FIGS. 13, 17) or more arms (FIGS. 14, 18) or extensions extended therefrom for blocking the conduits 20 of the piston 1.
  • the piston 1 may further include a number of openings 14 formed in the outer peripheral portion thereof (FIGS. 16-19) for communicating with the annular groove 13 of the piston 1 and for further communicating with the environment.
  • the compressor includes a piston having a loosely received sealing ring for preventing the piston from being easily damaged.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressor (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)

Claims (3)

  1. Dispositif de piston à soupape pour un compresseur, ledit dispositif de piston à soupape comprenant :
    a) une enveloppe dans laquelle est formée une chambre,
    b) un piston logé à coulissement dans ladite chambre de ladite enveloppe, ledit piston comprenant une partie périphérique extérieure dans laquelle est formée une gorge annulaire, ledit piston comprenant en outre au moins un conduit formé à l'intérieur qui fait communiquer ladite chambre de ladite enveloppe avec un environnement,
    c) une bague d'étanchéité logée dans ladite gorge annulaire dudit piston, dans lequel le piston comprend une partie supérieure dans laquelle sont formées plusieurs ouvertures qui communiquent avec ladite gorge annulaire dudit piston, et présente une surface périphérique intérieure inclinée pour définir sa gorge annulaire, ladite surface périphérique intérieure inclinée dudit piston comprend une partie inférieure ayant un diamètre plus grand que celui de ladite bague d'étanchéité pour former une partie inférieure de ladite gorge annulaire dudit piston et pour forcer ladite bague d'étanchéité à coopérer avec l'enveloppe lorsque ledit piston est mis en mouvement dans une direction allant vers ladite enveloppe, et comprend une partie supérieure ayant un diamètre plus petit que celui de ladite bague d'étanchéité pour former une partie supérieure de ladite gorge annulaire dudit piston et pour recevoir ladite bague d'étanchéité avec jeu dans ladite partie supérieure de ladite gorge annulaire dudit piston lorsque ledit piston est mis en mouvement dans une direction qui s'éloigne de ladite enveloppe, lesdites ouvertures dudit piston communiquent avec ladite gorge annulaire dudit piston et communiquent avec ladite chambre de ladite enveloppe lorsque ladite bague d'étanchéité est logée avec jeu dans ladite partie supérieure de ladite gorge annulaire dudit piston,
    d) une lamelle de soupape fixée audit piston pour fermer ledit au moins un conduit dudit piston et laisser l'air s'écouler à travers ledit au moins un conduit dudit piston et pénétrer dans ladite chambre de ladite enveloppe lorsque ledit piston est mis en mouvement dans une direction qui s'éloigne de ladite enveloppe.
  2. Dispositif de piston à soupape selon la revendication 1, dans lequel ladite lamelle de soupape présente une forme circulaire ayant une partie centrale fixée audit piston et ayant une partie périphérique servant à fermer ledit au moins un conduit dudit piston.
  3. Dispositif de piston à soupape selon la revendication 1, dans lequel lesdites ouvertures dudit piston s'ouvrent sur une partie périphérique radialement extérieure dudit piston.
EP03000218A 2003-01-07 2003-01-07 Soupape annulaire intégrée dans le piston d'un compresseur Expired - Lifetime EP1437508B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE60309280T DE60309280T2 (de) 2003-01-07 2003-01-07 Integriertes Ringventil für einen Kompressorkolben
AT03000218T ATE343723T1 (de) 2003-01-07 2003-01-07 Integriertes ringventil für einen kompressorkolben
EP03000218A EP1437508B1 (fr) 2003-01-07 2003-01-07 Soupape annulaire intégrée dans le piston d'un compresseur

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP03000218A EP1437508B1 (fr) 2003-01-07 2003-01-07 Soupape annulaire intégrée dans le piston d'un compresseur

Publications (2)

Publication Number Publication Date
EP1437508A1 EP1437508A1 (fr) 2004-07-14
EP1437508B1 true EP1437508B1 (fr) 2006-10-25

Family

ID=32479884

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03000218A Expired - Lifetime EP1437508B1 (fr) 2003-01-07 2003-01-07 Soupape annulaire intégrée dans le piston d'un compresseur

Country Status (3)

Country Link
EP (1) EP1437508B1 (fr)
AT (1) ATE343723T1 (fr)
DE (1) DE60309280T2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011106947A1 (fr) * 2010-03-05 2011-09-09 浙江鸿友压缩机制造有限公司 Compresseur d'air commandant l'air d'admission à travers un distributeur à tiroir cylindrique
TWI883830B (zh) * 2024-02-21 2025-05-11 已久工業股份有限公司 空壓機

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007053749B4 (de) * 2007-11-12 2012-04-05 Wen-San Jhou Luftverdichter mit verbessertem Ventilbauelement
WO2015027729A1 (fr) * 2013-08-30 2015-03-05 Dongguan Richtek Electronics Co., Ltd. Cylindre de fluide
WO2020181477A1 (fr) * 2019-03-12 2020-09-17 冠翔（香港）工业有限公司 Soupape d'air et compresseur d'air associé
DE102020208698A1 (de) * 2020-07-13 2022-01-13 Thyssenkrupp Ag Kolben für eine Kolbenpumpe, sowie Kolbenpumpe
TWI778585B (zh) * 2021-04-16 2022-09-21 周文三 空氣壓縮機
TWI778591B (zh) * 2021-04-21 2022-09-21 周文三 空氣壓縮機汽缸內的多孔活塞體
TWI784492B (zh) 2021-04-21 2022-11-21 周文三 空氣壓縮機汽缸內的多孔活塞體
TWI784495B (zh) 2021-04-22 2022-11-21 周文三 汽缸活塞體的進氣阻片

Family Cites Families (11)

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Publication number Priority date Publication date Assignee Title
DE8985C (de) * 1900-01-01 Dr. E. L. GUILLIE in Villeneuve, Yonne (Frankreich Doppeltwirkende rotirende Kolbenpumpe
GB572095A (en) * 1944-03-25 1945-09-21 Turner Mfg Company Ltd Improvements in double-acting differential piston pumps
DE975469C (de) * 1952-06-04 1961-12-07 Mueller & Co Schwelmer Eisen Pumpenkolben mit eingebautem Fluessigkeitsventil
US4596515A (en) * 1983-09-08 1986-06-24 Sargent Industries, Inc. Oil well pump
RO102342B1 (en) * 1987-04-21 1992-06-26 Piston for hydraulic generators
US5171135A (en) * 1991-07-25 1992-12-15 Tecumseh Products Company Flexible suction valve retainer
US6135725A (en) 1996-09-11 2000-10-24 Chou; Wen-San Valved piston arrangement for an electric motor driven air compressor
US5655887A (en) 1996-09-11 1997-08-12 Chou; Wen-San Valved Piston arrangement for an electric motor driven air compressor
US6095758A (en) 1998-03-30 2000-08-01 Chou; Wen-San Structure for a compact air compressor
US6200110B1 (en) * 1999-03-01 2001-03-13 Wen San Chou Air compressor
US6497560B2 (en) * 2001-02-05 2002-12-24 Robert T. Carlson High volume low pressure air pump

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011106947A1 (fr) * 2010-03-05 2011-09-09 浙江鸿友压缩机制造有限公司 Compresseur d'air commandant l'air d'admission à travers un distributeur à tiroir cylindrique
TWI883830B (zh) * 2024-02-21 2025-05-11 已久工業股份有限公司 空壓機

Also Published As

Publication number Publication date
DE60309280T2 (de) 2007-02-01
ATE343723T1 (de) 2006-11-15
EP1437508A1 (fr) 2004-07-14
DE60309280D1 (de) 2006-12-07

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