JP2003065222A - Piston of swash plate type compressor - Google Patents

Piston of swash plate type compressor

Info

Publication number
JP2003065222A
JP2003065222A JP2001261597A JP2001261597A JP2003065222A JP 2003065222 A JP2003065222 A JP 2003065222A JP 2001261597 A JP2001261597 A JP 2001261597A JP 2001261597 A JP2001261597 A JP 2001261597A JP 2003065222 A JP2003065222 A JP 2003065222A
Authority
JP
Japan
Prior art keywords
piston
swash plate
cylinder bore
compressor housing
peripheral surface
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.)
Pending
Application number
JP2001261597A
Other languages
Japanese (ja)
Inventor
Masaki Shiina
正樹 椎名
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
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 Sanden Corp filed Critical Sanden Corp
Priority to JP2001261597A priority Critical patent/JP2003065222A/en
Priority to FR0210770A priority patent/FR2829191B1/en
Priority to DE10240071A priority patent/DE10240071B4/en
Priority to US10/231,077 priority patent/US20030044292A1/en
Publication of JP2003065222A publication Critical patent/JP2003065222A/en
Pending legal-status Critical Current

Links

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
    • F04B27/0873—Component parts, e.g. sealings; Manufacturing or assembly thereof
    • F04B27/0878—Pistons

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a piston of a swash plate type compressor comprising a head inserted into a cylinder bore, a tail part having a shoe holding part and rotation preventing part formed at the tail part allowing miniaturization of a compressor housing. SOLUTION: This piston comprises the head inserted into the cylinder bore, the tail part having the shoe holding part and the rotation preventing part formed at the tail part. A sliding part of the rotation preventing part and internal peripheral surface of the compressor housing exists inside an outer diameter side enveloping circle of the cylinder bore.

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【発明の属する技術分野】本発明は、シリンダボアに挿
入されるヘッドと、シュー保持部を有する尾部と、尾部
に形成された自転阻止部とを備える斜板式圧縮機のピス
トンに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a piston for a swash plate type compressor having a head inserted into a cylinder bore, a tail portion having a shoe holding portion, and a rotation preventing portion formed at the tail portion.

【０００２】[0002]

【従来の技術】図１に示すように、シリンダボアに挿入
されるヘッド１と、軸線Ｘ周りに回転駆動される斜板Ａ
に摺接する一対のシューＢを保持するシュー保持部２を
有する尾部３と、尾部３に形成された自転阻止部４とを
備える斜板式圧縮機のピストンが広く使用されている。
従来のピストンにおいては、自転阻止部４の圧縮機ハウ
ジング内周面との摺接部５は、軸線Ｘから離隔する側の
シリンダボアの包絡円、すなわちシリンダボアの外径側
包絡円Ｃの外側に配設されていた。2. Description of the Related Art As shown in FIG. 1, a head 1 inserted into a cylinder bore and a swash plate A which is driven to rotate about an axis X.
A piston of a swash plate compressor including a tail portion 3 having a shoe holding portion 2 for holding a pair of shoes B slidably contacting with each other and a rotation preventing portion 4 formed on the tail portion 3 is widely used.
In the conventional piston, the sliding contact portion 5 of the rotation preventing portion 4 with the inner peripheral surface of the compressor housing is arranged outside the envelope circle of the cylinder bore on the side separated from the axis X, that is, on the outside of the outer diameter side envelope circle C of the cylinder bore. It was set up.

【０００３】[0003]

【発明が解決しようとする課題】自転阻止部４の圧縮機
ハウジング内周面との摺接部５をシリンダボアの外径側
包絡円Ｃの外側に配設したことにより、圧縮機ハウジン
グが大径化していた。本発明は上記問題に鑑みてなされ
たものであり、シリンダボアに挿入されるヘッドと、シ
ュー保持部を有する尾部と、尾部に形成された自転阻止
部とを備える斜板式圧縮機のピストンであって、圧縮機
ハウジングを小径化できるピストンを提供することを目
的とする。By disposing the sliding contact portion 5 of the rotation preventing portion 4 with the inner peripheral surface of the compressor housing outside the envelope C on the outer diameter side of the cylinder bore, the compressor housing has a large diameter. Had changed. The present invention has been made in view of the above problems, and is a piston for a swash plate compressor including a head to be inserted into a cylinder bore, a tail portion having a shoe holding portion, and a rotation blocking portion formed in the tail portion. An object of the present invention is to provide a piston capable of reducing the diameter of a compressor housing.

【０００４】[0004]

【課題を解決するための手段】上記課題を解決するため
に、本発明においては、シリンダボアに挿入されるヘッ
ドと、シュー保持部を有する尾部と、尾部に形成された
自転阻止部とを備え、自転阻止部の圧縮機ハウジング内
周面との摺接部が、シリンダボアの外径側包絡円の内側
に在ることを特徴とする斜板式圧縮機のピストンを提供
する。本発明に係る斜板式圧縮機のピストンにあって
は、自転阻止部の圧縮機ハウジング内周面との摺接部
が、シリンダボアの外径側包絡円の内側にあるので、従
来に比べて圧縮機ハウジングが小径化される。本発明の
好ましい態様においては、自転阻止部はシュー保持部か
ら延び圧縮機ハウジング内周面に摺接する一対の突起を
有している。一対の突起を圧縮機ハウジング内周面に摺
接させることにより、ピストンの自転を防止できる。一
対の突起の間に形成される凹部は自転阻止部の肉盗みと
なるので、ピストンが軽量化される。本発明の好ましい
態様においては、突起の基部とシュー保持部とが曲線で
接続されている。突起の基部とシュー保持部とが曲線で
接続されていれば、突起とシュー保持部との接続部での
応力集中が緩和される。In order to solve the above problems, the present invention comprises a head to be inserted into a cylinder bore, a tail portion having a shoe holding portion, and a rotation preventing portion formed in the tail portion. Provided is a piston for a swash plate compressor, wherein a sliding contact portion of the rotation preventing portion with an inner peripheral surface of the compressor housing is inside an outer diameter side envelopment circle of a cylinder bore. In the piston of the swash plate compressor according to the present invention, since the sliding contact portion of the rotation prevention portion with the inner peripheral surface of the compressor housing is inside the outer diameter side envelope circle of the cylinder bore, compression is greater than in the conventional case. The machine housing has a smaller diameter. In a preferred aspect of the present invention, the rotation preventing portion has a pair of protrusions extending from the shoe holding portion and slidingly contacting the inner peripheral surface of the compressor housing. The rotation of the piston can be prevented by slidingly contacting the pair of protrusions with the inner peripheral surface of the compressor housing. Since the recess formed between the pair of protrusions serves as a steal of the rotation preventing portion, the weight of the piston is reduced. In a preferred aspect of the present invention, the base portion of the protrusion and the shoe holding portion are connected by a curved line. If the base portion of the protrusion and the shoe holding portion are connected by a curved line, stress concentration at the connecting portion between the protrusion and the shoe holding portion is reduced.

【０００５】[0005]

【発明の実施の形態】本発明の実施例に係る斜板式圧縮
機のピストンを説明する。図２、３に示すように、斜板
式圧縮機のピストン１０は、シリンダボアに挿入される
ヘッド１１と、軸線Ｙ周りに回転駆動される斜板Ｄに摺
接する一対のシューＥを保持するシュー保持部１２を有
する尾部１３と、尾部１３に形成された自転阻止部１４
とを備えている。自転阻止部１４は、シュー保持部１２
から延び圧縮機ハウジングＦの内周面に摺接する一対の
突起１４ａを有している。突起１４ａの基部とシュー保
持部１２とは、曲線αで接続されている。突起１４ａの
圧縮機ハウジングＦの内周面との摺接部は、シリンダボ
アの外径側包絡円Ｇの内側に配設されている。すなわ
ち、前記摺接部の軸線Ｙからの距離Ｒ１１は、シリンダ
ボアの外径側包絡円Ｇの軸線Ｙ周りの半径Ｒ１２よりも
小さな値に設定されている。BEST MODE FOR CARRYING OUT THE INVENTION A piston of a swash plate type compressor according to an embodiment of the present invention will be described. As shown in FIGS. 2 and 3, the piston 10 of the swash plate compressor includes a head 11 that is inserted into a cylinder bore, and a shoe holder that holds a pair of shoes E that slidably contact a swash plate D that is driven to rotate about an axis Y. A tail portion 13 having a portion 12 and a rotation blocking portion 14 formed on the tail portion 13.
It has and. The rotation prevention unit 14 is the shoe holding unit 12.
It has a pair of protrusions 14a that extend from the outer peripheral surface of the compressor housing F and are in sliding contact with the inner peripheral surface of the compressor housing F. The base of the protrusion 14a and the shoe holder 12 are connected by a curve α. The sliding contact portion of the protrusion 14a with the inner peripheral surface of the compressor housing F is disposed inside the outer diameter side envelopment circle G of the cylinder bore. That is, the distance R11 from the axis Y of the sliding contact portion is set to a value smaller than the radius R12 of the outer diameter side envelope circle G of the cylinder bore around the axis Y.

【０００６】圧縮機ピストン１０においては、自転阻止
部１４の一対の突起１４ａが圧縮機ハウジングＦの内周
面に摺接することにより、ピストン１０の自転が阻止さ
れる。圧縮機ピストン１０においては、突起１４ａの圧
縮機ハウジングＦ内周面との摺接部が、シリンダボアの
外径側包絡円Ｇの内側にあるので、前記摺接部がシリン
ダボアの外径側包絡円Ｇの外側に在る従来構造のピスト
ンに比べて、圧縮機ハウジングＦの内径が低減し、圧縮
機ハウジングＦが小径化されている。一対の突起１４ａ
の間に形成される凹部が、自転阻止部１４の肉盗みとな
り、ピストン１０が軽量化されている。突起１４ａの基
部とシュー保持部１２とが曲線αで接続されることによ
り、突起１４ａとシュー保持部１２との接続部での応力
集中が緩和されている。In the compressor piston 10, the rotation of the piston 10 is prevented by the pair of projections 14a of the rotation preventing portion 14 slidingly contacting the inner peripheral surface of the compressor housing F. In the compressor piston 10, since the sliding contact portion of the protrusion 14a with the inner peripheral surface of the compressor housing F is inside the outer diameter side envelopment circle G of the cylinder bore, the sliding contact portion is the outer diameter side envelopment circle of the cylinder bore. The inner diameter of the compressor housing F is smaller than that of the piston having the conventional structure located outside the G, and the diameter of the compressor housing F is reduced. A pair of protrusions 14a
The recessed portion formed between the two portions serves to steal the rotation blocking portion 14 to reduce the weight of the piston 10. By connecting the base portion of the protrusion 14a and the shoe holding portion 12 with the curve α, stress concentration at the connecting portion between the protrusion 14a and the shoe holding portion 12 is relieved.

【０００７】[0007]

【発明の効果】以上説明したごとく、本発明に係る斜板
式圧縮機のピストンにあっては、自転阻止部の圧縮機ハ
ウジング内周面との摺接部が、シリンダボアの外径側包
絡円の内側にあるので、従来に比べて圧縮機ハウジング
が小径化される。As described above, in the piston of the swash plate compressor according to the present invention, the sliding contact portion of the rotation blocking portion with the inner peripheral surface of the compressor housing is the envelope circle on the outer diameter side of the cylinder bore. Since it is inside, the diameter of the compressor housing is smaller than in the conventional case.

【図面の簡単な説明】[Brief description of drawings]

【図１】従来構造の斜板式圧縮機のピストンの斜視図で
ある。FIG. 1 is a perspective view of a piston of a swash plate compressor having a conventional structure.

【図２】本発明の実施例に係るピストンを備える斜板式
圧縮機の部分断面図である。FIG. 2 is a partial sectional view of a swash plate compressor including a piston according to an embodiment of the present invention.

【図３】本発明の実施例に係る斜板式圧縮機のピストン
の構造図である。（ａ）は上面図であり、（ｂ）は
（ａ）のｂ−ｂ矢視図であり、（ｃ）は（ａ）のｃ−ｃ
矢視図である。FIG. 3 is a structural diagram of a piston of a swash plate compressor according to an embodiment of the present invention. (A) is a top view, (b) is a bb arrow view of (a), (c) is cc of (a).
FIG.

【符号の説明】[Explanation of symbols]

１、１１ ヘッド ２、１２ シュー保持部 ３、１３ 尾部 ４、１４ 自転阻止部 ５ 摺接部 １４ａ 突起 Ａ、Ｄ 斜板 Ｂ、Ｅ シュー Ｃ、Ｇ シリンダボアの外径側包絡円 Ｘ、Ｙ 軸線 1, 11 heads 2, 12 shoe holder 3, 13 tail 4, 14 Rotation prevention part 5 Sliding contact 14a protrusion A, D swash plate B, E shoe C, G Envelope circle on the outer diameter side of the cylinder bore X, Y axis

Claims (3)

【特許請求の範囲】[Claims] 【請求項１】 シリンダボアに挿入されるヘッドと、シ
ュー保持部を有する尾部と、尾部に形成された自転阻止
部とを備え、自転阻止部の圧縮機ハウジング内周面との
摺接部が、シリンダボアの外径側包絡円の内側に在るこ
とを特徴とする斜板式圧縮機のピストン。1. A head to be inserted into a cylinder bore, a tail portion having a shoe holding portion, and a rotation blocking portion formed on the tail portion, and a sliding contact portion of the rotation blocking portion with an inner peripheral surface of a compressor housing, A piston for a swash plate compressor, which is located inside the outer diameter side envelope circle of the cylinder bore. 【請求項２】 自転阻止部はシュー保持部から延び圧縮
機ハウジング内周面に摺接する一対の突起を有している
ことを特徴とする請求項１に記載の斜板式圧縮機のピス
トン。2. The piston for a swash plate compressor according to claim 1, wherein the rotation preventing portion has a pair of protrusions extending from the shoe holding portion and slidingly contacting the inner peripheral surface of the compressor housing. 【請求項３】 突起の基部とシュー保持部とが曲線で接
続されていることを特徴とする請求項２に記載の斜板式
圧縮機のピストン。3. The piston of the swash plate compressor according to claim 2, wherein the base portion of the protrusion and the shoe holding portion are connected by a curved line.
JP2001261597A 2001-08-30 2001-08-30 Piston of swash plate type compressor Pending JP2003065222A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2001261597A JP2003065222A (en) 2001-08-30 2001-08-30 Piston of swash plate type compressor
FR0210770A FR2829191B1 (en) 2001-08-30 2002-08-30 COMPRESSOR PISTONS AND COMPRESSORS COMPRISING SUCH PISTONS
DE10240071A DE10240071B4 (en) 2001-08-30 2002-08-30 Piston and compressor
US10/231,077 US20030044292A1 (en) 2001-08-30 2002-08-30 Compressor pistons and compressors including such pistons

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2001261597A JP2003065222A (en) 2001-08-30 2001-08-30 Piston of swash plate type compressor

Publications (1)

Publication Number Publication Date
JP2003065222A true JP2003065222A (en) 2003-03-05

Family

ID=19088616

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2001261597A Pending JP2003065222A (en) 2001-08-30 2001-08-30 Piston of swash plate type compressor

Country Status (4)

Country Link
US (1) US20030044292A1 (en)
JP (1) JP2003065222A (en)
DE (1) DE10240071B4 (en)
FR (1) FR2829191B1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009099031A1 (en) * 2008-02-04 2009-08-13 Sanden Corporation Swash plate type compressor
WO2014104420A1 (en) * 2012-12-26 2014-07-03 주식회사 엔엘테크 Variable displacement swash plate type compressor

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1329634B1 (en) * 2002-01-17 2008-11-19 Zexel Valeo Climate Control Corporation Swash or wobble plate compressor
JP2003286942A (en) 2002-03-28 2003-10-10 Sanden Corp Method for manufacturing piston usable for reciprocating compressor
US7172393B2 (en) 2002-09-05 2007-02-06 Sanden Corporation Multi-cylinder compressors and methods for designing such compressors
US11773837B1 (en) * 2022-06-03 2023-10-03 T/CCI Manufacturing, L.L.C. Compressor

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02168072A (en) * 1988-12-22 1990-06-28 Kanegafuchi Chem Ind Co Ltd Air cylinder
JPH05256256A (en) * 1992-03-13 1993-10-05 Hitachi Ltd Ball joint
JPH06346844A (en) * 1993-06-04 1994-12-20 Toyota Autom Loom Works Ltd Piston rotation regulating structure in swash plate type compressor
JP2001221156A (en) * 1999-12-29 2001-08-17 Visteon Global Technologies Inc Variable displacement compressor having piston rotation preventing structure

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0819849B2 (en) * 1996-07-15 2008-05-21 Kabushiki Kaisha Toyota Jidoshokki Piston compressor for compressing gas
JP2947243B2 (en) * 1997-11-14 1999-09-13 株式会社豊田自動織機製作所 Piston structure in swash plate compressor

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02168072A (en) * 1988-12-22 1990-06-28 Kanegafuchi Chem Ind Co Ltd Air cylinder
JPH05256256A (en) * 1992-03-13 1993-10-05 Hitachi Ltd Ball joint
JPH06346844A (en) * 1993-06-04 1994-12-20 Toyota Autom Loom Works Ltd Piston rotation regulating structure in swash plate type compressor
JP2001221156A (en) * 1999-12-29 2001-08-17 Visteon Global Technologies Inc Variable displacement compressor having piston rotation preventing structure

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009099031A1 (en) * 2008-02-04 2009-08-13 Sanden Corporation Swash plate type compressor
JP2009185615A (en) * 2008-02-04 2009-08-20 Sanden Corp Swash plate compressor
WO2014104420A1 (en) * 2012-12-26 2014-07-03 주식회사 엔엘테크 Variable displacement swash plate type compressor
KR101431743B1 (en) * 2012-12-26 2014-08-19 주식회사 엔엘테크 Variable Displacement Swash Plate Type Compressor

Also Published As

Publication number Publication date
DE10240071A1 (en) 2003-03-27
FR2829191B1 (en) 2009-10-16
US20030044292A1 (en) 2003-03-06
DE10240071B4 (en) 2010-08-12
FR2829191A1 (en) 2003-03-07

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