EP1264987A1 - Compresseur du type a cylindree variable - Google Patents

Compresseur du type a cylindree variable Download PDF

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Publication number
EP1264987A1
EP1264987A1 EP00957045A EP00957045A EP1264987A1 EP 1264987 A1 EP1264987 A1 EP 1264987A1 EP 00957045 A EP00957045 A EP 00957045A EP 00957045 A EP00957045 A EP 00957045A EP 1264987 A1 EP1264987 A1 EP 1264987A1
Authority
EP
European Patent Office
Prior art keywords
side end
hollow cylindrical
top face
piston
cylindrical portion
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.)
Withdrawn
Application number
EP00957045A
Other languages
German (de)
English (en)
Other versions
EP1264987A4 (fr
Inventor
Hiroyuki Zexel Valeo Climate Control Corp ISHIDA
Takeo Zexel Valeo Climate Control Corp MIZUSHIMA
Hiromichi Zexel Valeo Climate Contr. Corp TANABE
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.)
Valeo Thermal Systems Japan Corp
Original Assignee
Zexel Valeo Climate Control Corp
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 Zexel Valeo Climate Control Corp filed Critical Zexel Valeo Climate Control Corp
Publication of EP1264987A1 publication Critical patent/EP1264987A1/fr
Publication of EP1264987A4 publication Critical patent/EP1264987A4/fr
Withdrawn legal-status Critical Current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
    • 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
    • F04B39/14—Provisions for readily assembling or disassembling
    • 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
    • F04B27/0878—Pistons

Definitions

  • This invention relates to a variable capacity compressor whose delivery quantity varies with changes in the inclination angle of a swash plate thereof, such as a variable capacity swash plate compressor.
  • a conventional variable capacity swash plate compressor includes a cylinder block having a plurality of cylinder bores, a shaft rotatably supported in a central portion of the cylinder block, a swash plate mounted on the shaft, for rotation in unison with the shaft, and a plurality of pistons connected to the swash plate, for reciprocation within the respective cylinder bores by rotation of the swash plate.
  • FIG. 5 is a side view of a piston of the conventional variable capacity swash plate compressor.
  • the piston 520 has a hollow cylindrical portion 522, shoe support portions 521a, 521b formed on the side of a bottom face 520e of the hollow cylindrical portion 522, and a bridge portion 523 connecting the shoe support portions 521a, 521b.
  • the swash plate When the shaft rotates, the swash plate also rotates in unison with the shaft. As the swash plate rotates, the swash plate applies a load to the piston 520 via shoes to cause the piston 520 to slide within the cylinder bore 506.
  • oil contained in the refrigerant is attached to the inner peripheral surface of the cylinder bore 506. This oil is uniformly attached to the outer peripheral surface of the hollow cylindrical portion 522, when the opposite ends of the piston 520 (top face 520c and bottom face 520e) are perpendicular to the axis of the cylinder bore 506.
  • a top face-side end 522a and a bottom face-side end 522b of the hollow cylindrical portion 522 are chamfered. Further, as for the cylinder block 501, a bottom dead center-side opening 506a of the cylinder bore 506 is chamfered.
  • the center of gravity of the piston 520 suspended from the periphery of the swash plate via the shoes is toward the top face 520c, and hence when the piston 520 is being assembled with the cylinder block 501, a plurality of the pistons 520 are inclined such that the respective top faces 520c of the pistons 520 draw nearer, so that the axis of the piston 520 and the axis of the cylinder bore do not agree with each other.
  • the invention provides a variable capacity compressor including a cylinder block having a plurality of cylinder bores, a shaft rotatably supported in a central portion of the cylinder block, a rotational inclined plate mounted on the shaft, for rotation in unison with the shaft, and a plurality of pistons each having a connecting portion connected to the rotational inclined plate, and a hollow cylindrical portion assembled in the cylinder bore, for performing linear reciprocating motion within the cylinder bore by rotation of the rotational inclined plate, wherein a guide portion for guiding the piston into the cylinder bore when the hollow cylindrical potion of the piston is assembled therein is provided on the hollow cylindrical portion of the piston.
  • a guide portion for guiding the piston into the cylinder bore when the hollow cylindrical portion of the piston is assembled therein is provided on the hollow cylindrical portion of the piston. Therefore, by the action of the guide portion, the hollow cylindrical portion is smoothly inserted into the cylinder bore. Therefore, it is possible to positively prevent the pistons and the cylinder bores from scoring or galling during assembly work, and reduce time for the assembly of the pistons with the cylinder block to improve the ease of assembly work.
  • the guide portion has a top face-side end having a diameter smaller than a diameter of a bottom face-side end of the hollow cylindrical portion.
  • the guide portion has a top face-side end having a diameter smaller than a diameter of a bottom face-side end of the hollow cylindrical portion. Therefore, during assembly, the hollow cylindrical portion can be easily inserted into the cylinder bore.
  • the guide portion is formed between the bottom face-side end and the top face-side end, and has a tapered surface potion gently sloping down from the bottom face-side end to the top face-side end.
  • the guide portion is formed between the bottom face-side end and the top face-side end, and has a tapered surface potion gently sloping down from the bottom face-side end to the top face-side end. Therefore, the hollow cylindrical portion enters the cylinder bore following the slope of the tapered surface portion. This makes it possible to smoothly insert the hollow cylindrical portion into the cylinder bore.
  • the guide portion has a top face-side end having a diameter smaller than a diameter of a bottom face-side end of the hollow cylindrical portion, and the guide portion is formed between the bottom face-side end and the top face-side end, and has a tapered surface potion gently sloping down from the bottom face-side end to the top face-side end.
  • the guide portion is positioned within the cylinder bore when the piston is at a maximum stroke and at a bottom dead center position and at a bottom dead center position.
  • the guide portion is positioned within the cylinder bore when the piston is at a maximum stroke and at a bottom dead center position. Therefore, even when the piston is at the maximum stroke and at the bottom dead center position, the piston is not liable to be inclined with respect to the central axis of the cylinder bore. Therefore, it is possible to prevent the piston from being inclined.
  • the guide portion has a top face-side end having a diameter smaller than a diameter of a bottom face-side end of the hollow cylindrical portion, and the guide portion is positioned within the cylinder bore when the piston is at a maximum stroke and at a bottom dead center position.
  • the guide portion is formed between the bottom face-side end and the top face-side end, and has a tapered surface potion gently sloping down from the bottom face-side end to the top face-side end, and the guide portion is positioned within the cylinder bore when the piston is at a maximum stroke and at a bottom dead center position.
  • the guide portion has a top face-side end having a diameter smaller than a diameter of a bottom face-side end of the hollow cylindrical portion, and the guide portion is formed between the bottom face-side end and the top face-side end, and has a tapered surface potion gently sloping down from the bottom face-side end to the top face-side end, the guide portion being positioned within the cylinder bore when the piston is at a maximum stroke and at a bottom dead center position.
  • the invention is effective for a variable capacity compressor wherein a piston ring is fitted on the hollow cylindrical portion.
  • the hollow cylindrical portion When the hollow cylindrical portion is assembled with the cylinder block, first, the top face-side end of the hollow cylindrical portion is inserted into a bottom dead center-side opening of the cylinder bore, and thereafter, the hollow cylindrical portion can be inserted until the bottom face-side end is within the cylinder bore while forcing the piston ring into a ring groove against the resilience of the piston ring. Therefore, even if the piston ring is fitted on the hollow cylindrical portion, it is possible to more positively prevent the piston and the cylinder bore from galling, and at the same time reduce the time for assembling the piston and the cylinder block to improve the ease of assembly work.
  • the invention is effective for a variable capacity compressor wherein the guide portion has a top face-side end having a diameter smaller than a diameter of a bottom face-side end of the hollow cylindrical portion, and wherein a piston ring is fitted on the hollow cylindrical portion.
  • the invention is effective for a variable capacity compressor wherein the guide portion is formed between the bottom face-side end and the top face-side end, and has a tapered surface potion gently sloping down from the bottom face-side end to the top face-side end, and wherein a piston ring is fitted on the hollow cylindrical portion.
  • the invention is effective for a variable capacity compressor wherein the guide portion is positioned within the cylinder bore when the piston is at a maximum stroke and at a bottom dead center position, and wherein a piston ring is fitted on the hollow cylindrical portion.
  • the invention is effective for a variable capacity compressor wherein the guide portion has a top face-side end having a diameter smaller than a diameter of a bottom face-side end of the hollow cylindrical portion, and wherein the guide portion is formed between the bottom face-side end and the top face-side end, and has a tapered surface potion gently sloping down from the bottom face-side end to the top face-side end, and wherein a piston ring is fitted on the hollow cylindrical portion.
  • the invention is effective for a variable capacity compressor, and wherein the guide portion is formed between the bottom face-side end and the top face-side end, and has a tapered surface potion gently sloping down from the bottom face-side end to the top face-side end, and wherein the guide portion is positioned within the cylinder bore when the piston is at a maximum stroke and at a bottom dead center position, and wherein a piston ring is fitted on the hollow cylindrical portion.
  • the invention is effective for a variable capacity compressor wherein the guide portion has a top face-side end having a diameter smaller than a diameter of a bottom face-side end of the hollow cylindrical portion, and wherein the guide portion is positioned within the cylinder bore when the piston is at a maximum stroke and at a bottom dead center position, and wherein a piston ring is fitted on the hollow cylindrical portion.
  • the invention is effective for a variable capacity compressor wherein the guide portion has a top face-side end having a diameter smaller than a diameter of a bottom face-side end of the hollow cylindrical portion, and wherein the guide portion is formed between the bottom face-side end and the top face-side end, and has a tapered surface potion gently sloping down from the bottom face-side end to the top face-side end, and wherein the guide portion is positioned within the cylinder bore when the piston is at a maximum stroke and at a bottom dead center position, and wherein a piston ring is fitted on the hollow cylindrical portion.
  • a piston ring is fitted on the hollow cylindrical portion, and the piston ring is fitted on an axially central portion of the top face-side end of the hollow cylindrical portion.
  • a piston ring is fitted on the hollow cylindrical portion, and the piston ring is fitted on an axially central portion of the top face-side end of the hollow cylindrical portion. Therefore, the guide portion can be increased in size in an axial direction, and the piston can be smoothly inserted into the cylinder bore along the guide portion.
  • the guide portion has a top face-side end having a diameter smaller than a diameter of a bottom face-side end of the hollow cylindrical portion, and a piston ring is fitted on the hollow cylindrical portion, the piston ring being fitted on an axially central portion of the top face-side end of the hollow cylindrical portion.
  • a piston ring is fitted on the hollow cylindrical portion, and the piston ring is fitted on an axially central portion of the top face-side end of the hollow cylindrical portion.
  • the guide portion is formed between the bottom face-side end and the top face-side end, and has a tapered surface potion gently sloping down from the bottom face-side end to the top face-side end, and a piston ring is fitted on the hollow cylindrical portion, the piston ring being fitted on an axially central portion of the top face-side end of the hollow cylindrical portion.
  • the guide portion is positioned within the cylinder bore when the piston is at a maximum stroke and at a bottom dead center position, and a piston ring is fitted on the hollow cylindrical portion, the piston ring being fitted on an axially central portion of the top face-side end of the hollow cylindrical portion.
  • the guide portion has a top face-side end having a diameter smaller than a diameter of a bottom face-side end of the hollow cylindrical portion, and the guide portion is formed between the bottom face-side end and the top face-side end, and has a tapered surface potion gently sloping down from the bottom face-side end to the top face-side end, a piston ring being fitted on the hollow cylindrical portion, the piston ring being fitted on an axially central portion of the top face-side end of the hollow cylindrical portion.
  • the guide portion is formed between the bottom face-side end and the top face-side end, and has a tapered surface potion gently sloping down from the bottom face-side end to the top face-side end, the guide portion being positioned within the cylinder bore when the piston is at a maximum stroke and at a bottom dead center position, a piston ring being fitted on the hollow cylindrical portion, the piston ring being fitted on an axially central portion of the top face-side end of the hollow cylindrical portion.
  • the guide portion has a top face-side end having a diameter smaller than a diameter of a bottom face-side end of the hollow cylindrical portion, and the guide portion is positioned within the cylinder bore when the piston is at a maximum stroke and at a bottom dead center position, a piston ring being fitted on the hollow cylindrical portion, the piston ring being fitted on an axially central portion of the top face-side end of the hollow cylindrical portion.
  • the guide portion has a top face-side end having a diameter smaller than a diameter of a bottom face-side end of the hollow cylindrical portion, and the guide portion is formed between the bottom face-side end and the top face-side end, and has a tapered surface potion gently sloping down from the bottom face-side end to the top face-side end, the guide portion being positioned within the cylinder bore when the piston is at maximum stroke and at a bottom dead center position during, a piston ring being fitted on the hollow cylindrical portion, the piston ring being fitted on an axially central portion of the top face-side end of the hollow cylindrical portion.
  • a variable capacity compressor includes a cylinder block having a plurality of cylinder bores, a shaft rotatably supported in a central portion of the cylinder block, a rotational inclined plate mounted on the shaft, for rotation in unison with the shaft, and a plurality of pistons each connected to the rotational inclined plate, for performing linear reciprocating motion within the cylinder bore by rotation of the rotational inclined plate, wherein recesses for use in centering are formed in a top face of the piston and a bottom dead center-side end face of the piston, respectively.
  • the piston can be inserted into the cylinder bore by causing a jig to abut the recess in the top face of the piston, and the axis of the piston can be caused to agree with the axis of the cylinder bore by causing a jig to fit in and abut the recess in the bottom dead center-side end face of the piston. Therefore, when the piston is inserted into the cylinder bore, the axis of the piston accurately agrees with the axis of the cylinder bore, so that the piston can be smoothly inserted into the cylinder bore. Therefore, it is possible to positively prevent the pistons and the cylinder bores from scoring or galling during assembly work, and reduce time for the assembly of the pistons with the cylinder block to improve the ease of assembly work.
  • a variable capacity compressor includes a cylinder block having a plurality of cylinder bores, a shaft rotatably supported in a central portion of the cylinder block, a rotational inclined plate mounted on the shaft, for rotation in unison with the shaft, and a plurality of pistons each connected to the rotational inclined plate, for performing linear reciprocating motion within the cylinder bore by rotation of the rotational inclined plate, wherein a diameter of a downstream-side opening of the cylinder bore is made larger than a diameter of the piston.
  • the piston When the piston is assembled with the cylinder block, the piston is inserted into a bottom dead center-side opening of the cylinder bore with the top face-side end thereof inside. At this time, since the diameter of the bottom dead center-side opening of the cylinder bore is larger than the diameter of the top face-side end of the piston, the piston can be inserted into the cylinder bore without difficulty. Therefore, it is possible to positively prevent the pistons and the cylinder bores from scoring or galling during assembly work, and reduce time for the assembly of the pistons with the cylinder block to improve the ease of assembly work. Further, it is possible to work the piston more easily.
  • FIG. 1 is a cross-sectional view for explaining assembly of a piston with a cylinder block of a variable capacity swash plate compressor according to a first embodiment of the present invention
  • FIG. 2 is an enlarged side view of the piston.
  • the variable capacity swash plate compressor includes a cylinder block 1, a swash plate (rotational inclined plate) 10, and a plurality of pistons 20.
  • the cylinder block 1 has a large-diameter hole 2a and a small-diameter hole 2b extending along the center line of the cylinder block 1.
  • the large-diameter hole 2a has a thrust bearing 3 received therein, and the small-diameter hole 2b has a radial bearing 4 received therein.
  • the cylinder block 1 has a plurality of cylinder bores 6 extending therethrough at predetermined circumferential intervals about the center line of the cylinder block 1 (only two cylinder bores 6 are shown in FIG. 1).
  • the shaft 5 is rotatably supported in the large-diameter hole 2a and the small-diameter hole 2b of the cylinder block 1.
  • a thrust flange 30 is fixed to a front-side end of the shaft 5.
  • the swash plate 10 is rotatably mounted on the shaft 5 via a hinge ball 9, and at the same time, connected to the thrust flange 30 via a hinge mechanism 40.
  • a spring 35 for urging the swash plate 10 in a direction of decreasing the inclination angle of the swash plate 10.
  • Each piston 20 has a hollow cylindrical portion 22 and a connecting portion 29.
  • the connecting portion 29 is provided on a bottom face 20e side of the hollow cylindrical potion 22.
  • the hollow cylindrical portion 22 is slidable within the cylinder bore 6.
  • the connecting portion 29 is comprised of shoe support portions 21a, 21b, and a bridge portion 23 connecting the shoe support portions 21a, 21b. Further, the connecting portion 29 is connected to the swash plate 10 via a pair of shoes 50a,50b having a semispherical shape.
  • the piston 20 performs linear reciprocating motion within the cylinder bore 6 by rotation of the swash plate 10.
  • the shoes 50a, 50b are supported by the shoe support portions 21a, 21b of the piston 20 such that they can relatively slide on a front-side sliding surface 10a and a rear-side sliding surface 10b of the swash plate 10.
  • the hollow cylindrical portion 22 of the piston 20 is formed with a guide portion 28.
  • the guide portion 28 guides the piston 20 into the cylinder bore 6 when the piston 20 is assembled in the cylinder bore 6.
  • the guide portion 28 is formed between a bottom face-side end 20b and a top face-side end 20a of the hollow cylinder 22, and has a tapered surface portion 25 which gently slopes down from the bottom face-side end 20b to the top face-side end 20a.
  • the guide portion 28 (top face-side end 20a) has a diameter D1 which is smaller than a diameter D2 of the bottom face-side end 20b of the hollow cylindrical portion 22.
  • the top face-side end 20a and the bottom face-side end 20b of the hollow cylindrical portion 20 are divided e.g.
  • the tapered surface portion 25 as a border.
  • the relationship between the diameter D1 of the guide portion 28 of the hollow cylindrical portion 20, the diameter D2 of the bottom face-side end 20b, and the diameter D3 of the cylinder bore 6 is defined as: D3 - D2 ⁇ D3 - D1
  • the piston 20 is not liable to be inclined with respect to the central axis of the cylinder bore 6, since the guide portion 28 is positioned within the cylinder bore 6 even when the piston is at maximum stroke and at the bottom dead center position.
  • the top face 20c of the piston 20 and the bottom dead center-side end face 20d of the same are formed with recesses 24b, 24a for use in centering, respectively.
  • the recesses 24b, 24a have a shape of a cone, a hollow cylinder, or the like.
  • the extreme end of the top face-side end 20a and that of the bottom face-side end 20b of the hollow cylindrical portion are chamfered. Further, as for the cylinder block, the bottom dead center-side opening 6a of the cylinder bore 6 is chamfered.
  • members including the hinge ball 9, the swash plate 10, the shoes 50a, 50b, the pistons 20 and the thrust flange 30 are mounted on the shaft 5. At this time, as shown in FIG. 1, the pistons 20 are suspended from the swash plate 10.
  • the pistons 20 etc. are placed above the cylinder block 1, to cause the respective top faces 20c of the pistons 20 to face the cylinder bores 6 of the cylinder block 1.
  • an abutment portion 60a of the movable guide jig 60 positioned above is fitted in the recess 24a in the bottom dead center-side end face 20d, to cause the axis of each piston 20 to agree with the axis of the cylinder bore 6, and then the movable guide jig 60 is pushed downward.
  • the guide portion 28 of the piston 20 acts as a guide, and the piston 20 is inserted into the cylinder bore 6.
  • an abutment portion 61a of the movable guide jig 61 positioned below is fitted in the recess 24b in the top face 20c of the piston 20 inserted into the cylinder bore 6, and the piston 20 is inserted into the cylinder bore 6 until the bottom face-side end 20b is within the cylinder bore 6 while preventing the piston 20 from being inclined with the help of the movable guide jig 61.
  • the hollow cylindrical portion 22 is inserted into the cylinder bore 6 along the slope of the tapered surface portion 25b.
  • the plurality of pistons are assembled with the cylinder block 1, at a time.
  • the piston 20 can be smoothly inserted into the cylinder bore 6, whereby the time for assembly of the pistons 20 with cylinder block 1 is reduced and the ease of assembly work is improved.
  • piston 20 and the cylinder bore 6 can be assembled such that their axes accurately agree with each other. Therefore, it is possible to more positively prevent the pistons 20 and the cylinder bores 6 from scoring or galling.
  • the piston 20 is not liable to be inclined with respect to the central axis of the cylinder bore 6, it is possible to prevent the piston 20 from being inclined even when the piston is at maximum stroke and at the bottom dead center position.
  • FIG. 3 is a side view of a piston of a variable capacity swash plate compressor according to a second embodiment of the present invention.
  • a piston 126 is shown as a cross section.
  • Component parts similar to those of the first embodiment are designated by identical reference numerals, and description thereof will be omitted.
  • This embodiment is distinguished from the above embodiment in that a top face-side end 120a of a hollow cylindrical portion 122 has a piston ring 126 fitted thereon.
  • the piston ring 126 has an inner diameter equal to an inner diameter of a groove 127 formed in the outer peripheral surface of the top face-side end 120a of the hollow cylindrical portion 122, and is mounted in the groove 127 with opposed ends of a split thereof being separate from each other.
  • the piston 120 as well can be assembled with the cylinder block 1 in the same manner as described above.
  • the diameter of the piston ring 126 assumed when the piston ring 126 is fitted in the groove 127 can be larger than that of the bottom face-side end 120b, in this case, it is only required to push the piston 120 into the cylinder bore 6 while forcing the piston ring 126 into the ring groove 127 against the resilience thereof.
  • the piston ring 126 seals between the guide portion 128 and the cylinder bore 6, whereby it is possible to prevent leakage of refrigerant.
  • FIG. 4 is a side view of a piston according to a variation of the second embodiment. Component parts similar to those of the first embodiment are designated by identical reference numerals and description thereof will be omitted.
  • This variation is distinguished from the second embodiment in that a piston ring 226 is fitted on an axially central portion of a top face-side end 220 of a hollow cylindrical portion 220.
  • the diameter of the bottom dead center-side opening of the cylinder bore may be made larger than that of the piston.
  • variable capacity compressor is useful as a refrigerant compressor for an automotive air conditioner, and according to the variable capacity compressor, it is possible to positively prevent pistons and cylinder bores from scoring or galling during assembly work, and reduce time for the assembly of the pistons with a cylinder block to improve the ease of assembly work.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Compressor (AREA)
EP00957045A 2000-03-07 2000-09-08 Compresseur du type a cylindree variable Withdrawn EP1264987A4 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2000062262A JP2001248550A (ja) 2000-03-07 2000-03-07 可変容量型圧縮機
JP2000062262 2000-03-07
PCT/JP2000/006143 WO2001066945A1 (fr) 2000-03-07 2000-09-08 Compresseur du type a cylindree variable

Publications (2)

Publication Number Publication Date
EP1264987A1 true EP1264987A1 (fr) 2002-12-11
EP1264987A4 EP1264987A4 (fr) 2004-07-28

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EP00957045A Withdrawn EP1264987A4 (fr) 2000-03-07 2000-09-08 Compresseur du type a cylindree variable

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EP (1) EP1264987A4 (fr)
JP (1) JP2001248550A (fr)
WO (1) WO2001066945A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008101749A1 (fr) * 2007-02-20 2008-08-28 Robert Bosch Gmbh Pompe à haute pression pour transporter du carburant avec un guidage amélioré du piston de pompe
EP2025935A1 (fr) * 2006-06-07 2009-02-18 Sanden Corporation Machine hydraulique
CN102345583A (zh) * 2010-08-02 2012-02-08 上海三电贝洱汽车空调有限公司 压缩机活塞以及其装配方法、工装夹具
US8418333B2 (en) 2005-10-04 2013-04-16 Sanyo Machine Works, Ltd. Method and device for assembling swash plate-type fluid machine

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100798348B1 (ko) * 2002-05-21 2008-01-28 한라공조주식회사 사판식 압축기의 피스톤 조립장치
CN1327135C (zh) * 2003-06-13 2007-07-18 汉拏空调株式会社 用于安装旋转斜盘式压缩机中的活塞的设备
JP2008121633A (ja) * 2006-11-15 2008-05-29 Sanden Corp 圧縮機
JP5031914B2 (ja) * 2011-04-07 2012-09-26 三洋機工株式会社 斜板式流体機械の組み立て方法および組み立て装置
JP5341230B2 (ja) * 2012-05-28 2013-11-13 三洋機工株式会社 斜板式流体機械の組み立て方法および組み立て装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3998570A (en) * 1975-04-23 1976-12-21 General Motors Corporation Air conditioning compressor
JPH10159725A (ja) * 1996-12-02 1998-06-16 Sanden Corp 斜板式圧縮機
JPH10299655A (ja) * 1997-02-18 1998-11-10 Calsonic Corp 斜板式コンプレッサのピストンアセンブリ
JPH11257218A (ja) * 1999-01-18 1999-09-21 Toyota Autom Loom Works Ltd 容量可変型斜板式圧縮機
EP0952340A2 (fr) * 1998-04-17 1999-10-27 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Piston pour un compresseur à plateau en biais pour réfrigérant
US6024009A (en) * 1997-05-16 2000-02-15 Sanden Corporation Reciprocating pistons of piston-type compressor

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6325341Y2 (fr) * 1980-12-01 1988-07-11
JPH0512673U (ja) * 1991-07-29 1993-02-19 株式会社豊田自動織機製作所 往復動式圧縮機のピストン
JPH09203379A (ja) * 1996-01-25 1997-08-05 Toyota Autom Loom Works Ltd ピストン式圧縮機

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3998570A (en) * 1975-04-23 1976-12-21 General Motors Corporation Air conditioning compressor
JPH10159725A (ja) * 1996-12-02 1998-06-16 Sanden Corp 斜板式圧縮機
JPH10299655A (ja) * 1997-02-18 1998-11-10 Calsonic Corp 斜板式コンプレッサのピストンアセンブリ
US6024009A (en) * 1997-05-16 2000-02-15 Sanden Corporation Reciprocating pistons of piston-type compressor
EP0952340A2 (fr) * 1998-04-17 1999-10-27 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Piston pour un compresseur à plateau en biais pour réfrigérant
JPH11257218A (ja) * 1999-01-18 1999-09-21 Toyota Autom Loom Works Ltd 容量可変型斜板式圧縮機

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO0166945A1 *

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8418333B2 (en) 2005-10-04 2013-04-16 Sanyo Machine Works, Ltd. Method and device for assembling swash plate-type fluid machine
EP2613051A3 (fr) * 2005-10-04 2013-09-04 Sanyo Machine Works, Ltd. Procédé et dispositif de montage de machine à fluide de type plateau oscillant
US8695191B2 (en) 2005-10-04 2014-04-15 Sanyo Machine Works, Ltd. Method and device for assembling swash plate-type fluid machine
US9115704B2 (en) 2005-10-04 2015-08-25 Sanyo Machine Works, Ltd. Method and device for assembling swash plate-type fluid machine
US9140248B2 (en) 2005-10-04 2015-09-22 Sanyo Machine Works, Ltd. Method and device for assembling swash plate-type fluid machine
EP2025935A1 (fr) * 2006-06-07 2009-02-18 Sanden Corporation Machine hydraulique
EP2025935A4 (fr) * 2006-06-07 2009-05-27 Sanden Corp Machine hydraulique
US8210092B2 (en) 2006-06-07 2012-07-03 Sanden Corporation Fluid machine
WO2008101749A1 (fr) * 2007-02-20 2008-08-28 Robert Bosch Gmbh Pompe à haute pression pour transporter du carburant avec un guidage amélioré du piston de pompe
CN102345583A (zh) * 2010-08-02 2012-02-08 上海三电贝洱汽车空调有限公司 压缩机活塞以及其装配方法、工装夹具
CN102345583B (zh) * 2010-08-02 2016-09-28 华域三电汽车空调有限公司 压缩机活塞以及其装配方法、工装夹具

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EP1264987A4 (fr) 2004-07-28
JP2001248550A (ja) 2001-09-14
WO2001066945A1 (fr) 2001-09-13

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