EP0752530A1 - Machine à piston alternatif et entraînement par plateau oscillant - Google Patents

Machine à piston alternatif et entraînement par plateau oscillant Download PDF

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Publication number
EP0752530A1
EP0752530A1 EP96810373A EP96810373A EP0752530A1 EP 0752530 A1 EP0752530 A1 EP 0752530A1 EP 96810373 A EP96810373 A EP 96810373A EP 96810373 A EP96810373 A EP 96810373A EP 0752530 A1 EP0752530 A1 EP 0752530A1
Authority
EP
European Patent Office
Prior art keywords
piston
swash plate
guide
reciprocating piston
ball
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.)
Granted
Application number
EP96810373A
Other languages
German (de)
English (en)
Other versions
EP0752530B1 (fr
Inventor
Peter Kuhn
Frank Obrist
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.)
Bayerische Motoren Werke AG
Audi AG
Mercedes Benz Group AG
Original Assignee
TES WANKEL TECHNISCHE FORSCHUNGS- und ENTWICKLUNGSSTELLE LINDAU GmbH
Daimler Benz AG
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 TES WANKEL TECHNISCHE FORSCHUNGS- und ENTWICKLUNGSSTELLE LINDAU GmbH, Daimler Benz AG filed Critical TES WANKEL TECHNISCHE FORSCHUNGS- und ENTWICKLUNGSSTELLE LINDAU GmbH
Publication of EP0752530A1 publication Critical patent/EP0752530A1/fr
Application granted granted Critical
Publication of EP0752530B1 publication Critical patent/EP0752530B1/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
    • F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
    • F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
    • F04B1/14—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders
    • F04B1/141—Details or component parts
    • F04B1/146—Swash plates; Actuating elements
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/18—Mechanical movements
    • Y10T74/18056—Rotary to or from reciprocating or oscillating
    • Y10T74/18296—Cam and slide
    • Y10T74/18336—Wabbler type

Definitions

  • the invention relates to a reciprocating piston machine with a swash plate mechanism, wherein a first part of the swash plate is in drive connection with the machine shaft via a swivel joint and its second part is in drive connection with the piston, and the wobble movement is transmitted from the first to the second swash plate part via a rotary bearing.
  • Reciprocating machines of this type are widely known from the patent literature, e.g. by US-A-5,205,718 or DE-A-42 34 989. Since the wobble movement used for driving the piston has components in the direction of the piston movement as well as components directed radially thereto, it was previously considered necessary to have the wobble movement on To transmit the circumferential area of the swash plate to the pistons guided in a cylinder by connecting rods mounted on both sides via ball heads. The minimum length of the connecting rods determined by the maximum inclination of the swash plate and their arrangement between the swash plate and the pistons leads to a relatively large overall length of the reciprocating piston machine. The size of the reciprocating piston machine has a particularly disadvantageous effect if it is to be arranged in the engine compartment as a compressor for a vehicle air conditioning system.
  • the invention has for its object to find a reciprocating piston machine of the type mentioned, which has a small size, which can be manufactured with less effort or less expensive and which has low friction losses in the transmission of the drive from the swash plate to the piston.
  • connecting rods and two ball joint bearings are avoided on each connecting rod.
  • the combination of a ball head / transverse guide results in a significantly smaller contact area for the drive transmission compared to the ball joints previously used. so that there are considerably lower frictional resistances.
  • the invention also shows that the pistons arranged next to one another in the circumferential direction of the machine enclose the swash plate and the axial overall length of the machine is shortened accordingly.
  • the reciprocating piston machine 1 has, for example, seven pistons 2 which are arranged next to one another in the circumferential direction of the machine.
  • the swash plate 3 has a disk part 5 rotating with the machine shaft 4 and a disk part 6 which is in drive connection with the pistons 2 and consequently does not rotate.
  • a rotary bearing 9 equipped with bearing balls 7, 8 is provided between the two disk parts 5, 6, the axial and absorbs radial forces to transmit the wobble movement serving the piston drive.
  • the connection between the machine shaft 4 and the rotating disk part 5 takes place by means of a driver pin 10, which engages in a recess 11 of a driver body 12 formed laterally on the rotating disk part 5, which enables the angular adjustment of the swash plate 3.
  • the swashplate carries a spherical body 13 which is encompassed by a correspondingly shaped spherical surface 14 of the rotating disk part 5.
  • the force for the angular adjustment of the swash plate 3 results from the sum of the pressures acting against each other on both sides of the pistons 2, so that this force is dependent on the pressure in the drive chamber 15.
  • a flow connection can be provided with an external compressed gas flow, which is present when the machine is used as a compressor.
  • This connection can have channels 16 which lead to the sealing and storage space 17 provided for the machine shaft 4 and then into the drive space 15, so that cooling is also achieved.
  • the bottom dead center of the piston movement changes, while the top dead center remains unchanged or largely remains unchanged.
  • each connection between a location of the swash plate 3 and a piston 2 has only one ball joint 20, in that the type of mounting of the ball head 21 permits its movement transversely to the axis of the piston 2 or radially to the swash plate 3.
  • the piston 2 has a piston shaft 22, which rigidly connects its piston head 24, which carries the piston rings 23, to a guide head 26 sliding in the cylinder bore 25.
  • the swash plate 3 has for each piston 2 a short ball pin 27 which extends radially away from it and which engages with the ball head 21 in a transverse bore 28 of the guide head 26.
  • the ball head 21 is preferably surrounded by a slide ring 29 with a spherical inner surface 30, based on the outer rings of radial spherical plain bearings.
  • the engagement of the ball head 21 in the slide ring 29 causes it to slide in the transverse bore 28 of the guide head 26 during the radial movement of the ball head 21.
  • FIG. 5 illustrates that the ball joint 20 'between a piston 2 and the swash plate 3 can also be carried out in the reverse arrangement to that described above, in that a ball head 21' is rigidly fastened to the guide head 26 'of the piston 2 and receives it Cross bore 28 'extends radially into the swash plate 3.
  • the ball head 21 ' can be of a sliding sleeve, not shown, may be included.
  • an anti-rotation device is provided on at least one piston 2, so that rotation is prevented by the articulated connection between the swash plate 3 and the piston 2.
  • a guide pin 33 provided with two flats 32 extends through the wall 34 of the machine housing 35 and engages in an axially parallel guide groove 36 of the piston, so that a sliding contact is present between the flats 32 and the side walls of the guide groove 36.
  • the shaft 22 of the piston 2 in question is provided with a suitable cross section, which deviates from the slim cross section shown in the lower part of FIG.
  • each piston 2 is guided against rotation about its axis by a guide pin engaging in a guide groove 36.
  • the guide pin 33 is enclosed with a certain play between the side walls of the guide groove 36. Since the seven pistons 2 perform a phase-shifting, oscillating, limited rotary movement, in each wobble position of the swash plate 3, that piston assures the rotation of the disk part 6 of the swash plate 3, in which the contact between the guide pin 33 and a side wall of the associated guide groove 36 is closest is. Consequently, the guide contact changes in the circumferential direction of the machine from one piston 2 to the other, so that the stress caused by the guide is distributed accordingly.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Reciprocating Pumps (AREA)
  • Hydraulic Motors (AREA)
EP96810373A 1995-07-05 1996-06-07 Machine à piston alternatif et entraínement par plateau oscillant Expired - Lifetime EP0752530B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH01957/95A CH691272A5 (de) 1995-07-05 1995-07-05 Hubkolbenmaschine mit Taumelscheibengetriebe.
CH195795 1995-07-05
CH1957/95 1995-07-05

Publications (2)

Publication Number Publication Date
EP0752530A1 true EP0752530A1 (fr) 1997-01-08
EP0752530B1 EP0752530B1 (fr) 2002-03-27

Family

ID=4222556

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96810373A Expired - Lifetime EP0752530B1 (fr) 1995-07-05 1996-06-07 Machine à piston alternatif et entraínement par plateau oscillant

Country Status (5)

Country Link
US (1) US5752413A (fr)
EP (1) EP0752530B1 (fr)
JP (1) JP3373733B2 (fr)
CH (1) CH691272A5 (fr)
DE (1) DE59608940D1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1577552A2 (fr) * 2004-03-18 2005-09-21 Haldex Brake Corporation Compresseur à plateau en biais à angle fixe
EP3269978A1 (fr) * 2012-02-01 2018-01-17 YourBrook Energy Systems Ltd. Système et pompe hydroélectriques

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1066520C (zh) * 1996-06-06 2001-05-30 周海威 直轴柱塞式泥浆泵
GB2327717B (en) * 1997-03-03 2001-02-14 Luk Fahrzeug Hydraulik Compressor for the air-conditioning system of a motor vehicle
US7153105B2 (en) * 2003-04-24 2006-12-26 Haldex Brake Corporation Compressor with swash plate housing inlet port
US6860188B2 (en) * 2003-06-20 2005-03-01 Visteon Global Technologies, Inc. Variable displacement compressor hinge mechanism
JP4829761B2 (ja) * 2006-12-05 2011-12-07 サンデン株式会社 揺動板式可変容量圧縮機
JP5164563B2 (ja) * 2007-12-28 2013-03-21 サンデン株式会社 揺動板式可変容量圧縮機
US9816377B2 (en) * 2014-09-24 2017-11-14 Eaton Corporation Hydraulic axial-piston device with features to enhance efficiency and power density
JP7042795B2 (ja) * 2016-07-25 2022-03-28 ケア インコーポレーテッド 揺動板圧縮機およびこれを用いた酸素濃縮器
CN112392719B (zh) * 2020-11-20 2022-04-19 四川省机械技术服务中心有限责任公司 一种高效紧凑的柱塞泵柱塞装置
CN112983772B (zh) * 2021-03-30 2022-08-19 中航力源液压股份有限公司 一种降低滑履磨损的轴向柱塞泵回程装置

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB196158A (en) * 1922-03-08 1923-04-19 John Otto Almen Improvements in and relating to internal combustion engines
FR563879A (fr) * 1923-12-15
US2302995A (en) * 1939-02-15 1942-11-24 Frederick J Holmes Wobble plate structure
US2405006A (en) * 1944-01-27 1946-07-30 Electrol Inc Automatic cutoff pump
US2877653A (en) * 1955-03-04 1959-03-17 Specialties Dev Corp Piston driving mechanism and lubricating means therefor
DE4139186A1 (de) * 1990-11-29 1992-06-04 Toyoda Automatic Loom Works Kolben-verbindungsmechanismus fuer einen taumelscheiben-kompressor
EP0587023A1 (fr) * 1992-09-02 1994-03-16 Sanden Corporation Compresseur à piston à déplacement variable

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE887944A (fr) * 1981-03-13 1981-09-14 Seca S A Soc D Entpr S Commerc Moteur a mouvement lineaire et plateau oscillant pour un tel moteur
CA1306227C (fr) * 1987-02-19 1992-08-11 Teruo Higuchi Compresseur du type plateau oscillant a cylindree variable
JP2684931B2 (ja) * 1992-08-21 1997-12-03 株式会社豊田自動織機製作所 片頭ピストン型圧縮機
JPH0861237A (ja) * 1994-08-23 1996-03-08 Sanden Corp 斜板式圧縮機

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR563879A (fr) * 1923-12-15
GB196158A (en) * 1922-03-08 1923-04-19 John Otto Almen Improvements in and relating to internal combustion engines
US2302995A (en) * 1939-02-15 1942-11-24 Frederick J Holmes Wobble plate structure
US2405006A (en) * 1944-01-27 1946-07-30 Electrol Inc Automatic cutoff pump
US2877653A (en) * 1955-03-04 1959-03-17 Specialties Dev Corp Piston driving mechanism and lubricating means therefor
DE4139186A1 (de) * 1990-11-29 1992-06-04 Toyoda Automatic Loom Works Kolben-verbindungsmechanismus fuer einen taumelscheiben-kompressor
EP0587023A1 (fr) * 1992-09-02 1994-03-16 Sanden Corporation Compresseur à piston à déplacement variable

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1577552A2 (fr) * 2004-03-18 2005-09-21 Haldex Brake Corporation Compresseur à plateau en biais à angle fixe
EP1577552A3 (fr) * 2004-03-18 2006-12-13 Haldex Brake Corporation Compresseur à plateau en biais à angle fixe
EP3269978A1 (fr) * 2012-02-01 2018-01-17 YourBrook Energy Systems Ltd. Système et pompe hydroélectriques
US9951748B2 (en) 2012-02-01 2018-04-24 Yourbrook Energy Systems Ltd. Hydroelectric power system and pump
US10371119B2 (en) 2012-02-01 2019-08-06 Yourbrook Energy Systems Ltd. Hydroelectric power system and pump

Also Published As

Publication number Publication date
CH691272A5 (de) 2001-06-15
US5752413A (en) 1998-05-19
JPH0925872A (ja) 1997-01-28
EP0752530B1 (fr) 2002-03-27
JP3373733B2 (ja) 2003-02-04
DE59608940D1 (de) 2002-05-02

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