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EP1259735B1 - Machine a pistons alternatifs - Google Patents

Machine a pistons alternatifs Download PDF

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Publication number
EP1259735B1
EP1259735B1 EP01915075A EP01915075A EP1259735B1 EP 1259735 B1 EP1259735 B1 EP 1259735B1 EP 01915075 A EP01915075 A EP 01915075A EP 01915075 A EP01915075 A EP 01915075A EP 1259735 B1 EP1259735 B1 EP 1259735B1
Authority
EP
European Patent Office
Prior art keywords
housing
reciprocating piston
piston machine
machine according
ring nut
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
EP01915075A
Other languages
German (de)
English (en)
Other versions
EP1259735A2 (fr
Inventor
Frank Obrist
Peter Kuhn
Volker Seipel
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.)
Ixetic Mac GmbH
Original Assignee
Ixetic Mac GmbH
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
Priority claimed from DE20013202U external-priority patent/DE20013202U1/de
Priority claimed from DE20022264U external-priority patent/DE20022264U1/de
Application filed by Ixetic Mac GmbH filed Critical Ixetic Mac GmbH
Publication of EP1259735A2 publication Critical patent/EP1259735A2/fr
Application granted granted Critical
Publication of EP1259735B1 publication Critical patent/EP1259735B1/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
    • F04B27/00—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
    • F04B27/08—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis
    • F04B27/0873—Component parts, e.g. sealings; Manufacturing or assembly thereof
    • F04B27/0891—Component parts, e.g. sealings; Manufacturing or assembly thereof casings, housings
    • 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
    • F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
    • F04B39/121—Casings

Definitions

  • the invention relates to a reciprocating piston engine, in particular a compressor, preferably for the air conditioning system of a motor vehicle, with a housing and a housing cover, wherein in the housing, the working unit comprising the pistons and arranged in the housing cover of the intake and exhaust area and wherein the housing cover is bolted to the housing.
  • Reciprocating engines of the generic type are for years in a variety of embodiments and for different uses, for example DE 16 53 374 A . US 2,972,955 . US 2,392,543 or DE 198 08 251 A known.
  • This may, for example, be a compressor, for example a compressor for the air conditioning system of a motor vehicle.
  • Such compressors are commonly referred to as air conditioning compressors and include a housing which includes an externally driven compressor unit.
  • such a compressor is equipped with a plurality of pistons, which are moved back and forth on rotation of a swash plate on a receiving disk or when pivoting a swash plate in the direction of its longitudinal axis, wherein - in the case of a swash plate - the receiving disc is rotatably mounted in the housing.
  • the housing is usually closed by a housing cover, which is screwed or welded to the housing, for example.
  • Swash plate compressors are known in a variety of embodiments. Only by way of example is on the DE 44 41 721 A1 and the DE 196 11 004 A1 directed.
  • the compressor includes a swash plate supported on a drive shaft for performing a unitary rotational movement.
  • the swash plate is coupled to a plurality of pistons reciprocable in a cylinder block, the cylinder-piston assembly for compressing a gas.
  • the pistons may also be double-acting pistons.
  • the reciprocating engine can be opened only with considerable effort and possibly or destruction of individual components.
  • the exchange of parts is certainly no longer or only conditionally possible from an economic point of view.
  • the present invention has the object, a reciprocating engine of the generic type to design and further develop that a simple and thereby reversible connection between the housing and the housing cover with sufficient tightness can be realized with simple means.
  • the reciprocating piston engine according to the invention achieves the above object by the features of claim 1.
  • the already realized in the prior art gland is very specially formed, namely in the form of acting between the housing and the housing cover ring nut.
  • the housing and the housing cover can still be screwed together, but that the problems occurring in the prior art can be ruled out in the case of a multiple screw connection.
  • This is achieved by the use of a ring nut, which is inserted with an external thread on the nut and an internal thread on the housing in the area between the housing and the housing cover and there screwed in a conventional manner ( FIG. 1 ).
  • the power flow can be closed in the reciprocating engine.
  • a ring nut By means of a ring nut, the power flow can be closed in the reciprocating engine.
  • a single housing seal required, namely in the area of the ring nut.
  • a ring nut Another advantage in the use of a ring nut is the fact that it can easily be welded to the housing and the housing cover - in addition - in a simple way. It is also possible to replace the ring nut with a welding ring. In addition, the use of a ring nut, in contrast to numerous pull / anchor bolts to a very significant weight reduction.
  • the ring nut on the front side of the housing or into the housing projecting between the housing and a at least slightly projecting into the housing part of the housing cover can be screwed.
  • the ring nut forms an end-side, the cover edge overhanging end of the housing, wherein the housing cover can extend in the direction away from the housing.
  • a leakage path channel preferably in the form of an annular channel. This channel could also serve to relieve the pressure of the connection area between the housing and housing cover.
  • a sufficient seal can be realized by only a single seal, wherein such a seal between the housing and the housing cover may be provided in the area immediately behind the ring nut.
  • an inner seal is provided between the housing and the housing cover at a distance from the ring nut, wherein the inner seal may be a circumferential sealing ring.
  • the ring nut could be provided with a lubricant. It is also conceivable that the ring nut is preferably at least partially coated with a polymeric material and optionally formed self-locking.
  • the ring nut could be made of metal, in particular of a hardened metal.
  • FIG. 1 shows - in part - a compressor for the air conditioning of a motor vehicle.
  • the compressor comprises a housing 1 and a compression unit 2 arranged in the housing 1 for sucking and compressing a refrigerant, wherein the refrigerant may preferably be CO 2 .
  • the refrigerant flows from a suction region 4 formed in an end-side housing cover 3 through the compressor unit 2 into the outlet region 5 likewise formed in the housing cover 3.
  • the compressor unit 2 is used for suction and compression of the refrigerant, wherein the compressor unit 2 in a cylinder block 6 running piston 7 and a piston 7 driving the swash plate comprises, which is not shown in the figure.
  • FIG. 1 shows further that the housing 1 and the housing cover 3 are screwed together.
  • the screw connection is designed in the form of a ring nut 8 acting between the housing 1 and the housing cover 3.
  • the figure further shows that the ring nut 8 frontally on the housing 1 or in the housing 1 protruding between the housing 1 and a slightly protruding into the housing 1 part of the housing cover 3 is screwed or screwed, wherein the ring nut 8 has an external thread and the Housing 1 has an internal thread 12.
  • a channel 9 serving as a leakage path is formed immediately behind the ring nut 8 in the form of an annular channel. Thereafter, an inner seal is also provided between the housing 1 and the housing cover 3, also in the region immediately behind the ring nut 8, wherein it is in the concrete to a circumferential sealing ring 10.
  • the groove 11 may be flared upwardly in the housing cover 3 for receiving the ring nut 8 upwards.
  • the shoulder or the collar 13 of the lid is increasingly pressed against the valve plate 14 and a collar or shoulder 15 of the cylinder block 2.
  • the ring nut 8 itself may be coated with a polymeric material or provided with lubricant, which can narrow the tolerance range of the tightening torques.
  • the ring nut 8 is made of metal.
  • FIG. 2 shows a further embodiment of a reciprocating piston engine according to the invention, where there - partially and enlarged - the interaction of the housing 1 and the housing cover 3 is shown.
  • the housing cover 3 comprises an external thread 16 and the housing 1 an internal thread 12, wherein the external thread 16 and internal thread 12 cooperate.
  • FIG. 2 furthermore shows the already in FIG. 1 shown structural features, such as the provision of the seal 10 or the leakage path forming channel 9. In this regard, the comments to FIG. 1 directed.
  • FIG. 2 also shows the provision of a fastening screw 17 for fastening the valve block 18 for in FIG. 2 not shown control valves. It is also in FIG. 2 indicated that the intake 4 is provided with a thermal insulation coating 19.
  • FIG. 3 also shows in a schematic representation, partially opposite FIG. 1 , enlarged, another embodiment of a reciprocating piston engine according to the invention, where also only the interaction between the housing 1 and the housing cover 3 is shown.
  • a very special housing cover 3 is used there, which is screwed to the housing 1 like a union nut.
  • the housing cover 3 comprises an internal thread 20 which cooperates with a partially formed external thread 21 of the housing 1.
  • With a clamping shoulder 22 of the housing cover 3 comes to the housing 1 to the plant.
  • the clamping shoulder 22 it is achieved that the housing cover 3, the cylinder block 6 between the housing 1 and the housing cover 3 is clamped. Between the cylinder block 6 and the housing 1 acts a seal 23.
  • a seal 23 With regard to further features is - to avoid repetition - here on the execution too FIG. 1 directed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Compressor (AREA)

Claims (15)

  1. Machine à pistons alternatifs comprenant un carter (1) et un couvercle de carter (3), dans laquelle l'unité de travail comprenant les pistons (7) est disposée respectivement formée dans le carter (1) et la partie admission et échappement (4, 5) est disposée respectivement formée dans le couvercle de carter (3) et le couvercle de carter (3) est vissé sur le carter (1), caractérisée en ce que l'assemblage vissé est réalisé sous la forme d'un écrou à anneau (8) opérant dans sa disposition entre le carter (1) et le couvercle de carter (3).
  2. Machine à pistons alternatifs selon la revendication 1, caractérisée en ce que la machine à pistons alternatifs est un compresseur.
  3. Machine à pistons alternatifs selon la revendication 2, caractérisée en ce que le compresseur est prévu dans une installation de climatisation d'un véhicule automobile.
  4. Machine à pistons alternatifs selon l'une quelconque des revendications précédentes, caractérisée en ce que l'écrou à anneau (8) peut être vissé sur le carter (1) entre le carter (1) et une partie du couvercle de carter (3) pénétrant au moins légèrement dans le carter (1).
  5. Machine à pistons alternatifs selon la revendication 4, caractérisée en ce que l'écrou à anneau (8) peut être vissé sur le carter (1) du côté frontal.
  6. Machine à pistons alternatifs selon l'une quelconque des revendications précédentes, caractérisée en ce qu'un canal (9) servant de chemin de fuite est prévu entre le carter (1) et le couvercle de carter (3), juste derrière l'écrou à anneau (8).
  7. Machine à pistons alternatifs selon la revendication 6, caractérisée en ce que le canal (9) est réalisé sous la forme d'un canal annulaire.
  8. Machine à pistons alternatifs selon l'une quelconque des revendications précédentes, caractérisée en ce qu'un joint intérieur (10) est prévu entre le carter (1) et le couvercle de carter (3).
  9. Machine à pistons alternatifs selon la revendication 8, caractérisée en ce que le joint (10) est réalisé sous la forme d'une bague d'étanchéité périphérique.
  10. Machine à pistons alternatifs selon la revendication 8 ou 9, caractérisée en ce que le joint (10) est prévu dans la zone juste derrière l'écrou à anneau (8) ou à distance de l'écrou à anneau (8).
  11. Machine à pistons alternatifs selon l'une quelconque des revendications précédentes, caractérisée en ce que l'écrou à anneau (8) est muni d'un lubrifiant et/ou est revêtu d'un matériau polymère au moins par endroits pour réduire la plage de tolérance des couples de serrage.
  12. Machine à pistons alternatifs selon l'une quelconque des revendications précédentes, caractérisée en ce que l'écrou à anneau (8) est réalisé en métal.
  13. Machine à pistons alternatifs selon la revendication 12, caractérisée en ce que le métal est trempé.
  14. Machine à pistons alternatifs selon l'une quelconque des revendications précédentes, caractérisée en ce que le couvercle de carter (3) présente un filetage extérieur (21) et le carter (1) un filetage intérieur (20) ou que le couvercle de carter (3) est réalisé d'une seule pièce avec l'écrou à anneau (8) ou que l'écrou à anneau (8) est intégré dans le couvercle de carter (3).
  15. Machine à pistons alternatifs selon l'une quelconque des revendications précédentes, caractérisée en ce que l'écrou à anneau (8) est réalisé sous la forme d'un « écrou à chapeau » par lequel un couvercle de carter (3) présentant un filetage intérieur (20) est formé et en ce que le carter (1) a, de manière correspondante, un filetage extérieur (21).
EP01915075A 2000-03-03 2001-03-05 Machine a pistons alternatifs Expired - Lifetime EP1259735B1 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE20013202U 2000-03-03
DE20013202U DE20013202U1 (de) 2000-03-03 2000-03-03 Hubkolbenmaschine
DE20022264U 2000-07-31
DE20022264U DE20022264U1 (de) 2000-03-03 2000-07-31 Hubkolbenmaschine
PCT/DE2001/000819 WO2001065070A2 (fr) 2000-03-03 2001-03-05 Machine a pistons alternatifs

Publications (2)

Publication Number Publication Date
EP1259735A2 EP1259735A2 (fr) 2002-11-27
EP1259735B1 true EP1259735B1 (fr) 2009-01-14

Family

ID=26056429

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01915075A Expired - Lifetime EP1259735B1 (fr) 2000-03-03 2001-03-05 Machine a pistons alternatifs

Country Status (4)

Country Link
EP (1) EP1259735B1 (fr)
AU (1) AU4228901A (fr)
DE (1) DE10190756D2 (fr)
WO (1) WO2001065070A2 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10292227D2 (de) 2001-05-23 2004-04-29 Luk Fahrzeug Hydraulik Verdichter
DE102005010756B4 (de) * 2005-03-09 2009-05-07 Audi Ag Getriebegehäuse für ein Kraftfahrzeug
DE102011114904A1 (de) 2011-10-05 2013-04-11 Ixetic Bad Homburg Gmbh Verdichter mit Druckentlastungsnut
DE102017207366A1 (de) * 2017-05-02 2018-11-08 Man Diesel & Turbo Se Kompressorgehäuse
EP3947969A1 (fr) * 2019-04-03 2022-02-09 Maersk Container Industry A/S Ensemble carter de compresseur ou de pompe et procédé d'assemblage associé

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2392543A (en) * 1939-06-22 1946-01-08 Mercier Jean Pump
US2972955A (en) * 1957-03-21 1961-02-28 Richter Harald Submersible pump
DE1653374A1 (de) * 1967-01-02 1971-10-14 Louis Berholz Als Pumpe oder Motor betreibbare Druckfluessigkeits-Axialkolbenmaschine
US5528976A (en) 1993-11-24 1996-06-25 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Swash plate type compressor with bearing assembly
JP3429100B2 (ja) 1995-03-22 2003-07-22 株式会社豊田自動織機 両頭斜板式圧縮機
DE19807691B4 (de) * 1997-03-03 2012-07-12 Ixetic Bad Homburg Gmbh Kompressor, insbesondere für eine Klimaanlage eines Kraftfahrzeugs

Also Published As

Publication number Publication date
EP1259735A2 (fr) 2002-11-27
DE10190756D2 (de) 2003-06-12
WO2001065070A3 (fr) 2002-03-28
WO2001065070A2 (fr) 2001-09-07
AU4228901A (en) 2001-09-12

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