EP0945616A2 - Taumelscheibenkompressor mit verbesserter Drehmomentübertragung zwischen Welle und Taumelscheibe - Google Patents

Taumelscheibenkompressor mit verbesserter Drehmomentübertragung zwischen Welle und Taumelscheibe Download PDF

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Publication number
EP0945616A2
EP0945616A2 EP99105502A EP99105502A EP0945616A2 EP 0945616 A2 EP0945616 A2 EP 0945616A2 EP 99105502 A EP99105502 A EP 99105502A EP 99105502 A EP99105502 A EP 99105502A EP 0945616 A2 EP0945616 A2 EP 0945616A2
Authority
EP
European Patent Office
Prior art keywords
swash plate
fixed
shaft
movable
hinge
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
EP99105502A
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English (en)
French (fr)
Other versions
EP0945616A3 (de
EP0945616B1 (de
Inventor
Isamu C/O Sanden Corporation Fukai
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.)
Sanden Corp
Original Assignee
Sanden Corp
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Filing date
Publication date
Application filed by Sanden Corp filed Critical Sanden Corp
Publication of EP0945616A2 publication Critical patent/EP0945616A2/de
Publication of EP0945616A3 publication Critical patent/EP0945616A3/de
Application granted granted Critical
Publication of EP0945616B1 publication Critical patent/EP0945616B1/de
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
    • F04B27/10—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 having stationary cylinders
    • F04B27/1036—Component parts, details, e.g. sealings, lubrication
    • F04B27/1054—Actuating elements
    • F04B27/1072—Pivot mechanisms

Definitions

  • the present invention relates in general to a volume variable swash plate type compressor.
  • the volume variable swash plate type compressor 1 has, in general, a housing 3, a shaft 4 rotatably disposed in the housing 3, a swash plate 5 mounted to the shaft 4, and a hinge mechanism 6 which is mounted to the shaft 4 and serves to support the swash plate 5 in a valuable angular relation with respect to an axial direction of the shaft 4 so that the inclination angle of the swash plate can be varied and a driving torque transmitted to the shaft 4 is transmitted to the swash plate 5.
  • the hinge mechanism 6 has a fixed hinge 7 fixed to the shaft 4 and having a fixed arm 72, and a movable hinge 8 mounted to the shaft 4 and having a movable arm 82 rotatably connected with the fixed arm 72.
  • the fixed arm 72 has a fixed coupling surface 72a.
  • the movable arm 8 has a movable coupling surface 82a which is slidably contacted with the fixed coupling surface 72a and receives a driving torque from the fixed coupling surface 72a.
  • the housing 3 is provided at its one end with a cylinder block 34 in a unitary structure.
  • the cylinder block 34 is provided with a plurality of cylinder bores 34b.
  • a piston 12 is slidably inserted into each of the cylinder bores 34b.
  • the piston 12 is coupled with the swash plate 5 with a pair of shoes 18 disposed therebetween,
  • An end of the fixed arm 72 serves as a fixed coupling portion, at which a fixed coupling surface 72a is formed.
  • an end of the movable arm 82 serves as a movable coupling portion, at which a movable coupling surface 82a is formed.
  • the fixed hinge 7 is coupled with the movable hinge at the positions only of the fixed coupling portion and the movable coupling portion.
  • a force is generated as illustrated in Figs. 5A, 5B and 5C.
  • a driving torque T is effected on the shaft 4, a compressive reaction being given to the piston 12.
  • a moment M1 and a moment M2 are simultaneously effected to the fixed arm 72 and the movable arm 82, respectively.
  • the moment M1 is a four-turn shaft moment which is generated when the fixed hinge 7 receives a driving torque T from the shaft 4, then the driving torque T being transmitted from the fixed hinge 7 to the movable hinge 8.
  • the moment M2 is generated when the swash plate 5 receives a compressive reaction force P and is a moment, which serves to rotate the swash plate 5 in a rotational direction perpendicular to an axis of the shaft 4.
  • volume variable swash plate type compressor 1 In the volume variable swash plate type compressor 1, various moments are added to or effected on the fixed arm and the movable arm during operation. Therefore, it is required and important that the fixed arm and the movable arm have a sufficient rigidity.
  • arm portions In order to secure the desired rigidity to the arm portions, arm portions is formed to have a greater thickness. This results in heavy weight of the arm portions. Therefore, the balanced rotation of the hinge mechanism is not expected. Consequently, since adjustment of an inclination angle of the swash plate is not achieved in a smooth manner, responsive characteristics of volume control for the compressor is not fulfilled.
  • a swash plate type compressor which comprises a rotatable shaft extending in an axial direction, a swash plate, a hinge mechanism supporting said swash plate on said shaft in such a manner that said swash plate has an inclination angle variable relative to said axial direction, said hinge mechanism serving to transmit a driving torque of said shaft to said swash plate and comprises a fixed hinge fixedly connected to said shaft and a movable hinge fixedly connected to said swash plate, said fixed hinge having a fixed arm, said movable hinge having a movable arm which is coupled to said fixed arm to be pivotal around an axis extending perpendicular to said axial direction, said fixed and said movable arms transmitting a part of said driving torque to said swash plate in cooperation with each other.
  • the swash plate type compressor is characterized in that said fixed hinge has an auxiliary fixed coupling portion, said movable hinge having an auxiliary movable coupling portion engaged with said auxiliary fixed coupling portion, so that another part of said driving torque is transmitted from said shaft to said swash plate in cooperation of said auxiliary fixed and said auxiliary movable coupling portions.
  • a swash plate type compressor which comprises a housing including a cylinder block having a plurality of cylinder bores, a drive shaft rotatably supported by the housing, a plurality of pistons each of which is slidably disposed within each of the cylinder bores, a swash plate having an angle of tilt and tiltably connected to the drive shaft, a rotor member fixed to the drive shaft to be rotatable with the drive shaft, a hinge mechanism joining the rotor member to the swash plate for varying the inclination of the swash plate with respect to the drive shaft and transmitting a part of driving torque of the drive shaft to the swash plate, and coupling means coupling the swash plate to the pistons, so that the pistons are driven in reciprocating motion within the cylinder bores upon nutation of the plate.
  • the swash plate type compressor is characterized by further comprising transmitting means coupled between the rotor member and the swash plate for transmitting another part of the
  • the swash plate type compressor is designated by a reference numeral 1 and comprises a housing 3, a drive shaft 4, a swash plate 5 and a hinge mechanism.
  • the housing 3 has a housing body 31, a front end plate 32 and a cylinder head 33.
  • the housing body 31 is substantially cylindrical and has an opening at one end and a cylinder block 34 integrally formed at the other end.
  • the cylinder block 34 has a central hole 34a at its center portion.
  • the central hole 34a has therein a radial needle bearing 10 and a control valve 11.
  • On the outer circumferential surface of the cylinder block 34 is provided a plurality of cylinder bores 34b at a constant interval around the central hole 34a.
  • a piston 12 is slidably inserted into each of the cylinder bores 34b.
  • the front end plate 32 is substantially cone shaped and fitted to an end of the housing body 31 to close the end.
  • the front end plate 32 has at its central portion a radial needle bearing 13 and a shaft sealing member 14.
  • the cylinder head 33 is substantially bowl shaped and has a suction chamber 33a and exhaust (discharge) chamber 33b and is connected with the cylinder block 34 through a valve device 15 by means of a bolt 16.
  • the shaft 4 is rotatably supported at its tip end portion to the front end plate 32 through the needle bearing 13 and rotatably supported at its rear end to the cylinder block 34 through the needle bearing 10.
  • the shaft 4 is rotatably disposed in the housing 3, the tip end being extended out of the housing 3 through the front end plate 32.
  • the extended portion of the shaft 4 from the housing 3 is coupled with an electromagnetic clutch 17 fitted to the front end plate 32.
  • the swash plate 5 is ring shaped and mounted on the shaft 4 such that the shaft 4 is extended through the central hole 5a.
  • the swash plate 5 is supported to the hinge mechanism 6.
  • the swash plate 5 and the piston 12 are connected with each other by a pair of shoes 18.
  • the hinge mechanism 6 is mounted on the shaft 4 and serves to support the swash plate 5 so that an inclination angle is variable relative to an axis of the shaft 4, and the torque transmitted to the shaft 4 is transmitted to the swash plate 5.
  • the hinge mechanism 6 comprises a fixed hinge 7 and the movable hinge 8.
  • the fixed hinge 7 comprises a rotor member or a fixed hinge body 71 and a fixed arm 72.
  • the fixed hinge body 71 is ring shaped and fixed to the shaft 4 such that the shaft 4 is inserted into the central hole 71a.
  • the fixed arm 72 is of a plate shape and integrally formed as a first arm portion on the fixed hinge body 71.
  • the fixed arm 72 is extended along a surface which is contacted, in parallel, with the axis of the shaft 4 in the state that the fixed hinge 7 is fixed to the shaft 4.
  • the tip end of the fixed arm 72 serves as a fixed main coupling portion.
  • the fixed coupling portion has a fixed coupling portion 72a which is parallel to a plane contacted, in parallel, with an axis of the shaft 4. Further, a pin 61 is fixed to the fixed coupling portion and is extended perpendicularly to the fixed coupling surface 72a.
  • the movable hinge 8 comprises a flange portion 81, a movable arm 82, and a boss portion 83.
  • the flange portion 81 is of a ring shape.
  • the movable arm 82 is provided as a second arm portion on a surface of the flange portion 81 and its tip end serves as a movable main coupling portion, which has a movable coupling surface 82a parallel to a surface which is parallel to an axis of the shaft 4.
  • the movable coupling portion is provided with an elongated or oblong hole 82b into which a pin 61 disposed to the fixed arm 72 is inserted.
  • a snap ring 62 is fit is fitted to the end of the pin 61 to prevent the pin 61 from being dropped out of the oblong hole 82b.
  • the movable arm 82 is rotatably coupled with the fixed arm 72.
  • the movable coupling surface 82a is slidably contacted with the fixed coupling surface 72a of the fixed arm 72 with a washer 19 interposed therebetween so that a driving torque is received from the fixed coupling surface 72a.
  • a boss portion 83 is provided on the other surface of the flange portion 81 and has a male screw 83a on its outer circumferential surface.
  • the swash plate 5 is mounted on the boss portion 83 and a press ring 84 having a female screw 84a engageable with the male screw 83a is engaged with the boss portion 83, so that the swash plate 5 is fixed to the other surface of the flange portion 81.
  • a slant hole 85 is provided at a center portion of the boss portion 83 and the flange portion 81.
  • the central, slant hole 85 is a portion which serves to receive therethrough the shaft 4.
  • the inner surface of the slant hole 85 is slidably contacted with an outer circumferential surface of the shaft 4. Consequently, a smooth rotation of the movable hinge 8 is established.
  • the fixed hinge 7 has an auxiliary fixed coupling portion which, in this embodiment, is projected in an opposed relation from the side surfaces of the fixed hinge body 71 to form a pair of receiving portions or projections 73 having a pair of plain surfaces 73a.
  • the plain surfaces 73a are in a confronting relation with each other.
  • Each of the plain surfaces 73a is a surface which is parallel to one surface contacting in parallel with the axis of the shaft 4 and passing through the coupling portion between the fixed arm 72 and the movable arm 82.
  • the projections 73 having the surfaces 73a are provided nearer or proximal to the shaft 4 relative to the fixed main coupling portion of the fixed arm 72.
  • the projections 73 having the surfaces 73a are formed in a paired configuration and, in addition, located adjacent to the shaft 4. Therefore, a rotational balance of the fixed hinge 7 is maintained by the provision of the projections having the plain surfaces 73a.
  • the movable hinge 8 has an auxiliary movable coupling portion which, in this embodiment, comprises a pair of auxiliary arms 86 provided on one surface of the flange portion 81.
  • Each of the auxiliary arms 86 has a surface which is parallel to one surface contacting in parallel with the axis of the shaft 4 and passing through the coupling portion between the fixed arm 72 and the movable arm 82.
  • the auxiliary arms 86 are slidably contacted with a pair of the plain surface 73a in such a manner that a pair of the projections 73 of the fixed hinge 7 are grasped.
  • the paired auxiliary arms 86 are located more proximal or nearer to the shaft 4 than the movable main coupling portion of the movable arm 82.
  • the auxiliary arm 86 are formed in a paired relation and proximal to the shaft 4 as described above. Therefore, a rotational balance of the movable hinge 8 can be maintained by provision of the auxiliary arms 86.
  • the hinge mechanism has an auxiliary fixed coupling portion and an auxiliary movable coupling portion. Therefore, a rigidity of the fixed arm of the fixed hinge and the movable arm of the movable hinge can be reduced relative to the conventional compressors. In addition, the weight of the fixed arm and movable arm can be reduced. Thus, the rotational balance of the hinge mechanism can be improved relative to the compressors in an earlier technology. Further, adjustment and control of the inclination angle of the swash plate can be made readily. Accordingly, responsiveness of the volume control of the compressor can be improved substantially.
  • auxiliary fixed coupling portion and the auxiliary movable coupling portion are not limited to those of the embodiment described above. Alterations and modifications can be made if a part of the driving torque transmitted to the fixed hinge can be transmitted desirably to the movable hinge without providing any inconveniences to rotation of the movable hinge.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
EP19990105502 1998-03-27 1999-03-17 Taumelscheibenkompressor mit verbesserter Drehmomentübertragung zwischen Welle und Taumelscheibe Expired - Lifetime EP0945616B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP8121598 1998-03-27
JP10081215A JPH11280645A (ja) 1998-03-27 1998-03-27 容量可変型斜板式圧縮機

Publications (3)

Publication Number Publication Date
EP0945616A2 true EP0945616A2 (de) 1999-09-29
EP0945616A3 EP0945616A3 (de) 2000-04-05
EP0945616B1 EP0945616B1 (de) 2003-12-03

Family

ID=13740271

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19990105502 Expired - Lifetime EP0945616B1 (de) 1998-03-27 1999-03-17 Taumelscheibenkompressor mit verbesserter Drehmomentübertragung zwischen Welle und Taumelscheibe

Country Status (3)

Country Link
EP (1) EP0945616B1 (de)
JP (1) JPH11280645A (de)
DE (1) DE69913228T2 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006031738A1 (de) * 2006-07-10 2008-01-17 Kastriot Merlaku Brems-System für Fahrzeuge oder Maschinen aller Art
DE102006031855A1 (de) * 2006-07-10 2008-01-17 Kastriot Merlaku Brems-Vorrichtung für einspurige Fahrzeuge, vorzugsweise für Fahrräder oder Motorräder
DE102006031747A1 (de) * 2006-07-10 2008-01-17 Kastriot Merlaku Brems-System
US20090178552A1 (en) * 2006-04-07 2009-07-16 Calsonic Kansei Corporation Variable capacity compressor

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100382362B1 (ko) * 2000-10-11 2003-05-01 한라공조주식회사 가변용량 사판식 압축기
JP2002303261A (ja) 2001-04-06 2002-10-18 Sanden Corp 容量可変型斜板式圧縮機
JP4062265B2 (ja) 2004-02-24 2008-03-19 株式会社豊田自動織機 可変容量圧縮機

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4425837A (en) * 1981-09-28 1984-01-17 General Motors Corporation Variable displacement axial piston machine
US4674957A (en) * 1984-12-22 1987-06-23 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Control mechanism for variable displacement swash plate type compressor
EP0568944A1 (de) * 1992-05-08 1993-11-10 Sanden Corporation Schiefscheibenverdichter mit veränderlicher Förderleistung
EP0773366A1 (de) * 1995-09-14 1997-05-14 Calsonic Corporation Schiefscheibenverdichter mit veränderlicher Verdrängung

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4425837A (en) * 1981-09-28 1984-01-17 General Motors Corporation Variable displacement axial piston machine
US4674957A (en) * 1984-12-22 1987-06-23 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Control mechanism for variable displacement swash plate type compressor
EP0568944A1 (de) * 1992-05-08 1993-11-10 Sanden Corporation Schiefscheibenverdichter mit veränderlicher Förderleistung
EP0773366A1 (de) * 1995-09-14 1997-05-14 Calsonic Corporation Schiefscheibenverdichter mit veränderlicher Verdrängung

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090178552A1 (en) * 2006-04-07 2009-07-16 Calsonic Kansei Corporation Variable capacity compressor
US8152483B2 (en) * 2006-04-07 2012-04-10 Calsonic Kansei Corporation Variable capacity compressor
DE102006031738A1 (de) * 2006-07-10 2008-01-17 Kastriot Merlaku Brems-System für Fahrzeuge oder Maschinen aller Art
DE102006031855A1 (de) * 2006-07-10 2008-01-17 Kastriot Merlaku Brems-Vorrichtung für einspurige Fahrzeuge, vorzugsweise für Fahrräder oder Motorräder
DE102006031747A1 (de) * 2006-07-10 2008-01-17 Kastriot Merlaku Brems-System

Also Published As

Publication number Publication date
DE69913228T2 (de) 2004-10-14
EP0945616A3 (de) 2000-04-05
EP0945616B1 (de) 2003-12-03
JPH11280645A (ja) 1999-10-15
DE69913228D1 (de) 2004-01-15

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