EP0752530B1 - Machine à piston alternatif et entraínement par plateau oscillant - Google Patents

Machine à piston alternatif et entraínement par plateau oscillant Download PDF

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Publication number
EP0752530B1
EP0752530B1 EP96810373A EP96810373A EP0752530B1 EP 0752530 B1 EP0752530 B1 EP 0752530B1 EP 96810373 A EP96810373 A EP 96810373A EP 96810373 A EP96810373 A EP 96810373A EP 0752530 B1 EP0752530 B1 EP 0752530B1
Authority
EP
European Patent Office
Prior art keywords
piston
pistons
swash plate
guide
reciprocating piston
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
EP96810373A
Other languages
German (de)
English (en)
Other versions
EP0752530A1 (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
Bayerische Motoren Werke AG
DaimlerChrysler AG
Audi 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 Bayerische Motoren Werke AG, DaimlerChrysler AG, Audi AG filed Critical Bayerische Motoren Werke AG
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 gear with the features of the preamble of the claim 1.
  • a reciprocating piston machine of this type is known from FR-A-563 879.
  • pin-shaped drivers engage in bearing bushes one whose diameter is larger than that of Pistons so that they connect to each other in a two pistons Housing part of the piston are stored, which over extends the circumference of the piston.
  • Such driver designs is with relatively large frictional forces connected.
  • the pin engagement limits the possible change in the stroke length of the working piston.
  • US-A-2,405,006 is a through a swash plate powered reciprocating piston machine known in which a driver pin with a head with a spherical surface into a engages bore transverse to the piston.
  • the given one Line contact between the ball head and the bore leads to increased wear, especially since such Pistons are usually made of light metal.
  • GB-A-196 158 has a constant stroke length Reciprocating machine with swash plate gear known in the the swashplate is disc-shaped up to a driving space the piston extends.
  • the drive transmission takes place from the disc to the pistons through four half-shell-shaped ones Guide parts that are curved on both sides of the disc Guide ribs held in a form-fitting and sliding manner are. Because of the alternating high forces on it The drive transmission is subject to wear and tear and requires high dimensional accuracy, with correspondingly high Production costs.
  • the invention has for its object a reciprocating piston machine of the type mentioned at the beginning, which is a minor one Has size that can be done with less effort or cheaper can be produced and the low friction losses in the drive transmission from the swash plate to the pistons having.
  • the reciprocating piston engine 1 has, for example, seven pistons 2 which arranged side by side in the circumferential direction of the machine are.
  • the swash plate 3 has one with the machine shaft 4 rotating disc part 5 and one in drive connection with the piston 2 standing and therefore not rotating Disc part 6.
  • a rotary bearing 9 equipped with bearing balls 7, 8 provided that absorbs axial and radial forces to which the To transfer piston drive serving wobble.
  • connection between the machine shaft 4 and the rotating one Disk part 5 is carried out by a driving pin 10, which enables the angular adjustment of the swash plate 3 Recess 11 of a laterally on the rotating disc part 5 molded driver body 12 engages.
  • a driving pin 10 which enables the angular adjustment of the swash plate 3 Recess 11 of a laterally on the rotating disc part 5 molded driver body 12 engages.
  • this carries a spherical body 13 which from a correspondingly shaped spherical surface 14 of the rotating Disk part 5 is included.
  • the force for the angular adjustment of the swash plate 3 results from the sum of the pistons 2 on both sides against each other acting pressures so that this force from the pressure in the Drive room 15 is dependent.
  • This pressure can be a flow connection with an external compressed gas flow be provided when using the machine as a compressor is available.
  • This connection can have channels 16 that are connected to the sealing and storage space provided for the machine shaft 4 17 lead and then in the drive room 15, so that too cooling is achieved.
  • the bottom dead center of the piston movement changes, while top dead center remains unchanged or largely remains unchanged.
  • the seven pistons are 2 for the execution of their stroke movement connected to the circumference of the swash plate 3.
  • the piston 2 has a piston shaft 22, the piston head 24 carrying the piston rings 23 rigid with a guide head sliding in the cylinder bore 25 26 connects.
  • the swash plate has 3 for each piston 2 a radially extending from it, short ball pin 27 which with the ball head 21 in a transverse bore 28 of the guide head 26 engages.
  • Line contact leading to excessive pressure loads between the ball head 21 and a cylindrical transverse bore 28 to avoid, is preferably the ball head 21, according to the Model of the outer rings of radial spherical plain bearings, from one Includes slide ring 29 with a spherical inner surface 30.
  • the Engagement of the ball head 21 in the slide ring 29 causes this during the radial movement of the ball head 21 in the transverse bore 28 of the guide head 26 slides.
  • FIG. 5 illustrates that the ball joint 20 'between a piston 2 and the swash plate 3 can also be carried out with the reverse arrangement as described above is by a ball head 21 'rigidly on the guide head 26' of the Piston 2 is attached and the transverse bore 28 'receiving it extends radially into the swash plate 3. Also at In this embodiment, the ball head 21 'of a sliding sleeve, not shown, may be included.
  • At least one piston 2 is provided with an anti-rotation device that the pivoting through the articulation between Swash plate 3 and piston 2 is prevented.
  • a guide pin 33 provided with two flats 32 through the wall 34 of the machine housing 35 and engages in one axially parallel guide groove 36 of the piston, so that between the flats 32 and the side walls of the Guide groove 36 is a sliding contact.
  • the shaft 22 is the relevant one Provide piston 2 with a suitable cross section, that of the slim shown in the lower part of Fig.1 Cross section deviates.
  • each piston 2 by a guide pin engaging in a guide groove 36 is guided against rotation about its axis.
  • the Guide pin 33 with a certain play between the side walls the guide groove 36 included. Because the seven pistons 2 an oscillating, phase-shifted, perform limited rotation, takes over in any wobble position the swash plate 3 that piston the anti-rotation of the disc 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. Consequently changes the guide contact in the circumferential direction of the machine from one Piston 2 to the other, so that the stress through 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)

Claims (4)

  1. Machine à pistons alternatifs et transmission par disque en nutation, avec une première partie (5) du disque en nutation (3) qui est en communication d'entraínement avec l'arbre de machine (4) par l'intermédiaire d'une articulation à pivotement (10, 11; 13, 14), et une deuxième partie (6) de disque en nutation qui est en liaison d'entraínement avec les pistons (2), le déplacement de nutation étant transféré par un palier de rotation (9) de la première à la deuxième partie du disque en nutation et la liaison d'entraínement avec chaque fois l'un des pistons (2) s'effectuant chaque fois par un dispositif d'entraínement prévu sur la deuxième partie (6) du disque en nutation et qui pénètre dans le piston (2), caractérisée en ce que le dispositif d'entraínement est une tête sphérique (21, 21') entourée par une bague de coulissement (29) à surface intérieure (30) de forme sphérique, la bague du guidage (29) étant maintenue à coulissement dans un alésage de guidage (28) qui s'étend transversalement par rapport à l'axe du piston, les pistons (2) étant empêchés de tourner.
  2. Machine à pistons alternatifs selon la revendication 1, caractérisée en ce que les têtes sphériques (21) sont fixées rigidement à la périphérie de la deuxième partie (6) du disque en nutation, et le guide sphérique (28) s'étend transversalement à travers l'extrémité (26), situé du côté de l'entraínement, du piston (2).
  3. Machine à pistons alternatifs selon la revendication 1 ou 2, caractérisée en ce qu'un élément de guidage (33) s'engage dans au moins l'un des pistons (2) de telle sorte que la rotation du piston (2) autour de son axe longitudinal soit au moins étroitement limitée.
  4. Machine à pistons alternatifs selon l'un des revendications 1 à 3, caractérisée en ce que le piston (2) présente une tête de piston (24) portant des bagues d'étanchéité (23) et une tête de guidage (26) qui sont reliées l'une à l'autre par une tige de piston (22).
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
CH195795 1995-07-05
CH01957/95A CH691272A5 (de) 1995-07-05 1995-07-05 Hubkolbenmaschine mit Taumelscheibengetriebe.
CH1957/95 1995-07-05

Publications (2)

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

Families Citing this family (12)

* 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
IT1298458B1 (it) * 1997-03-03 2000-01-10 Luk Fahrzeug Hydraulik Compressore per un impianto di climatizzazione di un autoveicolo
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
US20050207905A1 (en) * 2004-03-18 2005-09-22 Koelzer Robert L Fixed angle swash plate compressor
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
CA3048828C (fr) 2012-02-01 2021-08-10 Yourbrook Energy Systems Ltd. Systeme d'energie hydroelectrique et pompe associee
US9816377B2 (en) * 2014-09-24 2017-11-14 Eaton Corporation Hydraulic axial-piston device with features to enhance efficiency and power density
US11408407B2 (en) * 2016-07-25 2022-08-09 Caire Inc. Wobble plate compressor and oxygen concentrator using the same
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

Family Cites Families (11)

* 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
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
AU603867B2 (en) * 1987-02-19 1990-11-29 Sanden Corporation Wobble plate type compressor with variable displacement mechanism
KR950003458Y1 (ko) * 1990-11-29 1995-05-02 가부시끼가이샤 도요다지도쇽끼 세이사꾸쇼 요동 사판식 압축기의 피스톤 변위기구
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
EP0587023B1 (fr) * 1992-09-02 1995-11-02 Sanden Corporation Compresseur à piston à déplacement variable
JPH0861237A (ja) * 1994-08-23 1996-03-08 Sanden Corp 斜板式圧縮機

Also Published As

Publication number Publication date
US5752413A (en) 1998-05-19
DE59608940D1 (de) 2002-05-02
JP3373733B2 (ja) 2003-02-04
CH691272A5 (de) 2001-06-15
JPH0925872A (ja) 1997-01-28
EP0752530A1 (fr) 1997-01-08

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