EP0752530A1 - Machine à piston alternatif et entraînement par plateau oscillant - Google Patents
Machine à piston alternatif et entraînement par plateau oscillant Download PDFInfo
- 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
Links
Images
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)
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 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)
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)
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 |
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 |
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 |
Citations (7)
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)
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 |
AU603867B2 (en) * | 1987-02-19 | 1990-11-29 | Sanden Corporation | Wobble plate type compressor with variable displacement mechanism |
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 |
-
1995
- 1995-07-05 CH CH01957/95A patent/CH691272A5/de not_active IP Right Cessation
-
1996
- 1996-06-07 EP EP96810373A patent/EP0752530B1/fr not_active Expired - Lifetime
- 1996-06-07 DE DE59608940T patent/DE59608940D1/de not_active Expired - Lifetime
- 1996-06-18 US US08/666,642 patent/US5752413A/en not_active Expired - Lifetime
- 1996-07-04 JP JP17463796A patent/JP3373733B2/ja not_active Expired - Fee Related
Patent Citations (7)
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)
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 |
---|---|
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 |
EP0752530B1 (fr) | 2002-03-27 |
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