JPS614885A - Compressor - Google Patents

Compressor

Info

Publication number
JPS614885A
JPS614885A JP12302984A JP12302984A JPS614885A JP S614885 A JPS614885 A JP S614885A JP 12302984 A JP12302984 A JP 12302984A JP 12302984 A JP12302984 A JP 12302984A JP S614885 A JPS614885 A JP S614885A
Authority
JP
Japan
Prior art keywords
cylinder
compressor
suction
wall
rotor
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
JP12302984A
Other languages
Japanese (ja)
Inventor
Tatsuhisa Taguchi
辰久 田口
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP12302984A priority Critical patent/JPS614885A/en
Publication of JPS614885A publication Critical patent/JPS614885A/en
Pending legal-status Critical Current

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  • Rotary Pumps (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)

Abstract

PURPOSE:To prevent the deformation of a cylinder due to heat and the seizing of a compressor and improve durability as well as reliability by providing a suction port and a suction passage on the side board of a vane type compressor. CONSTITUTION:The suction ports 22, 20 of a vane type compressor are provided on the side of a side board 15 and the suction passage 17 is also provided in the side board 15. Accordingly, merely a discharge port and a discharge passage are to be provided on a cylinder 21, resulting in a condition that the temp. of the cylinder is close to a discharge temperature. The temp. of the cylinder is nearly constant at any part, reducing the occurrence of thermal strain, and thereby preventing the seizing of the compressor due to the deformation of the cylinder.

Description

【発明の詳細な説明】 産業上の利用分野 本発明は自動車冷房用などに供される冷媒の圧縮機に関
するものである。
DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a refrigerant compressor used for cooling automobiles and the like.

従来例の構成とその問題点 近年、自動車は前輪駆動型に移行し、エンジンルームは
他の補益の増加も合まって非常に繁雑感を呈し、自動車
冷房用圧縮機はより小塾化が要請され、ロータリー化率
が年4高まってきている。
Conventional configurations and their problems In recent years, automobiles have shifted to front-wheel drive types, and the engine room has become extremely complex due to the increase in other supplementary functions. The rate of rotary participation has increased four times a year.

さらには、自動車の走行性能の改善により、エンジンの
許容最高回転数も年々高くなってきている。従って、ベ
ルトで直接エンジン駆動される圧縮機も許容回転数のア
ップが強く望1れている。
Furthermore, as the driving performance of automobiles improves, the maximum permissible engine speed is increasing year by year. Therefore, there is a strong desire to increase the permissible rotational speed of a compressor that is directly driven by an engine with a belt.

第1図に現在実用化されるロータリー圧縮機の一例を示
す。第1−において、1はシリンダで、楕円状の内壁を
有し、2対の吸入孔2、吐出孔3を有する。4はロータ
で、前記シリンダ1の中央に配設され、かつ、複数の放
射状ベーンスリット5を有し、その中には滑動可能なベ
ーン6が挿入されている。また7はシェル容器で、圧縮
郡全体を包んでいる。ここで、冷媒ガスはシリンダ1の
吸入孔2から流入し、ロータ4の回転と共に徐々に圧縮
され、高温高圧ガス冷媒となり、吐出孔3から、吐出さ
れる。従って、シリンダ1の温度分布は、シリンダ1の
内壁では吸入孔2付近は低温部となるが、吐出孔3に近
づくにつれ、吐出温度になる。一方、シリンダ1の外壁
は吐出された高温ガスにさらされるため、吐出温度とな
る。よって、シリンダ1は吸入孔2近傍において内外壁
間に温度差を生じ、熱歪が発生する。この結果、シリン
ダ1とロータ4の近接部の隙間8が減少する方向にシリ
ンダ1は変形する。この傾向は、温阜差が大きくなる高
速回転時はど顕著となり、さらに著しい場合には、隙間
8は零となり、圧縮機は焼付を引起こす。
Figure 1 shows an example of a rotary compressor currently in practical use. In No. 1-, 1 is a cylinder, which has an elliptical inner wall and has two pairs of suction holes 2 and discharge holes 3. A rotor 4 is disposed at the center of the cylinder 1 and has a plurality of radial vane slits 5, into which a slidable vane 6 is inserted. In addition, 7 is a shell container that encloses the entire compression group. Here, refrigerant gas flows in from the suction hole 2 of the cylinder 1, is gradually compressed as the rotor 4 rotates, becomes a high-temperature, high-pressure gas refrigerant, and is discharged from the discharge hole 3. Therefore, in the temperature distribution of the cylinder 1, the inner wall of the cylinder 1 has a low temperature area near the suction hole 2, but as it approaches the discharge hole 3, the temperature becomes the discharge temperature. On the other hand, the outer wall of the cylinder 1 is exposed to the discharged high-temperature gas, and therefore reaches the discharge temperature. Therefore, in the cylinder 1, a temperature difference occurs between the inner and outer walls near the suction hole 2, and thermal strain occurs. As a result, the cylinder 1 is deformed in a direction in which the gap 8 between the cylinder 1 and the rotor 4 is reduced. This tendency becomes more noticeable at high speed rotations where the temperature difference increases, and in even more severe cases, the gap 8 becomes zero, causing seizure of the compressor.

発明の目的 本発明は係る問題点に対し、改善を加え、圧縮機の耐久
性・信頼性を向上せしめんとするものである。
OBJECTS OF THE INVENTION The present invention aims to improve the above-mentioned problems and improve the durability and reliability of the compressor.

発明の構成 本発明の圧縮機は、円筒状内壁を有するシリンダと、複
数の放射状スリットヲ配したロータと、前記スリット内
を滑動するベーンと、前記シリンダを前後から閉塞する
側板と、前記シリンダの前記側板との端面に設けられた
吸入孔と、前記側板に設けられ、前記シリンダ内に開孔
した吸入通路からなる圧縮機であり、吸入通路及び吸入
孔をシリンダ壁の剛性を損うことなく配置した構成によ
り、冷媒の吸入・圧縮に伴なう温度差の発生による熱歪
により、シリンダ壁が変形し、耐久性、信頼性が劣化す
る現象を、吸入通路、吸入孔の配置を改善することによ
り、シリンダ壁の剛性を高めることにより抑制するもの
である。
Composition of the Invention The compressor of the present invention includes a cylinder having a cylindrical inner wall, a rotor having a plurality of radial slits, a vane that slides within the slit, a side plate that closes the cylinder from the front and back, and a rotor that has a cylindrical inner wall. This compressor consists of a suction hole provided at the end face with the side plate, and a suction passage provided in the side plate and opened in the cylinder, and the suction passage and the suction hole are arranged without impairing the rigidity of the cylinder wall. This structure prevents the deformation of the cylinder wall due to thermal distortion caused by the temperature difference caused by suction and compression of the refrigerant, resulting in deterioration of durability and reliability. This is suppressed by increasing the rigidity of the cylinder wall.

実施例の説明 以下、実施例について図を中心に説明する。Description of examples Examples will be described below with reference to the drawings.

第2図は本発明の実施例を示す一例である。また第3図
は第2図のA−人断面を示したものである。第2図にお
いて、11はロータで、シャフト12と焼ばめにより一
体化され、軸受部13a。
FIG. 2 is an example showing an embodiment of the present invention. Further, FIG. 3 shows a cross section of person A in FIG. 2. In FIG. 2, 11 is a rotor, which is integrated with the shaft 12 by shrink fitting, and has a bearing portion 13a.

13bは前側板14、後側板16により軸受支持されて
いる。16はしきり板で、後側板15との間に吸入室1
7を形成している。また18はシェル容器で、圧縮郡全
体を包み、前側板14とボルト締結されている。シェル
容器18の中央部の19は吸入継手で、冷媒ガスはこの
部分から流入し、吸入室17に入る。後側板16には吸
入通路20があり、一部は、シリンダ21に設けられた
吸入孔22に連通し、一部はシリンダ内に直接開孔して
いる。冷媒ガスは、この吸入孔22と吸入通路20から
シリンダ内に流入し、ロータ11とロータ11内に出没
自在に挿入されたベーン23の回転により、徐々に圧縮
される。
13b is supported by bearings by the front side plate 14 and the rear side plate 16. 16 is a partition plate, and the suction chamber 1 is formed between it and the rear plate 15.
7 is formed. A shell container 18 encloses the entire compression group and is bolted to the front plate 14. Reference numeral 19 in the center of the shell container 18 is a suction joint, and the refrigerant gas flows into the suction chamber 17 from this part. The rear plate 16 has a suction passage 20, a part of which communicates with a suction hole 22 provided in a cylinder 21, and a part of which opens directly into the cylinder. Refrigerant gas flows into the cylinder through the suction hole 22 and the suction passage 20, and is gradually compressed by the rotation of the rotor 11 and the vane 23 inserted into the rotor 11 so as to be retractable.

第3図において、圧縮された高温冷媒ガスは吐出孔24
から、流出するが、この吸入〜圧縮〜吐出の行程におい
て、冷媒ガスの温度は低温から高温1で変化する為、シ
リンダ21の内壁は温度分布を持つ。一方、シリンダ2
1の外壁は、吐出された高温ガスにおおわれている為、
高温となる。
In FIG. 3, the compressed high temperature refrigerant gas is discharged through the discharge hole 24.
During this suction-compression-discharge process, the temperature of the refrigerant gas changes from a low temperature to a high temperature 1, so the inner wall of the cylinder 21 has a temperature distribution. On the other hand, cylinder 2
The outer wall of No. 1 is covered with discharged high-temperature gas, so
It becomes high temperature.

従って、吸入孔22付近ではシリンダ21の内外壁間に
大きな温度差が発生することは前述した通りであるが、
この実施例では、シリンダ21の吸入孔22は、後側壁
15とシリンダ21の端面に設けられており、かつ後側
壁16にも直接流入可能な吸入通路2oが有り、充分の
通路面積が確保されている。この結果、シリンダ21に
設ける吸入孔22を端面側だけに設ける配置により、シ
リンダ壁の剛性が損なわれることがなく、前述した内外
壁の温度差による熱歪の発生が抑えられ、シリンダ21
とロータ11の最近接部の隙間25の減少がなく、衝突
に到ることはない。
Therefore, as described above, a large temperature difference occurs between the inner and outer walls of the cylinder 21 near the suction hole 22.
In this embodiment, the suction hole 22 of the cylinder 21 is provided on the rear wall 15 and the end face of the cylinder 21, and there is also a suction passage 2o that can directly flow into the rear wall 16, ensuring a sufficient passage area. ing. As a result, by providing the suction hole 22 in the cylinder 21 only on the end face side, the rigidity of the cylinder wall is not impaired, and the generation of thermal distortion due to the temperature difference between the inner and outer walls described above is suppressed, and the cylinder 21
There is no reduction in the gap 25 between the rotor 11 and the rotor 11, and no collision occurs.

本実施例では、後側壁との端面に吸入孔を設けたが、前
側壁との端面に、あるいは両方に設けても同様の効果が
得られることは言う捷でもない。
In this embodiment, the suction hole is provided on the end face with the rear side wall, but it goes without saying that the same effect can be obtained by providing the suction hole on the end face with the front side wall, or on both sides.

さらに、本実施例では圧縮部がシェル容器内に収納され
た圧縮機を示したが、圧縮部が外部に露出した圧縮機で
も同様である。
Further, although this embodiment shows a compressor in which the compression section is housed in a shell container, the same applies to a compressor in which the compression section is exposed to the outside.

発明の効果 このように、円筒状内壁を有するシリンダと、複数の放
射状スリットを配したロータと、前記スリット内を滑動
するベーンと、前記シリンダを前後から閉塞する側板と
、前記シリンダの前記側板との端面に設けられた吸入孔
と、前記側板に設けられ、前記シリンダ内に開孔した吸
入通路からなる圧縮機を構成することにより、シリンダ
壁の剛性を劣化させることなく、しかも吸入通路面積を
充分確保した吸入経路を作ることができ、シリンダ壁に
温度差が発生しても熱歪が発生することのない、耐久性
、信頼性に優れた圧縮機を提供することができる。
Effects of the Invention As described above, the present invention includes a cylinder having a cylindrical inner wall, a rotor having a plurality of radial slits, a vane that slides within the slit, a side plate that closes the cylinder from the front and back, and the side plate of the cylinder. By constructing a compressor consisting of a suction hole provided on the end face of the cylinder and a suction passage provided in the side plate and opened inside the cylinder, the rigidity of the cylinder wall is not deteriorated, and the area of the suction passage can be reduced. It is possible to provide a compressor with excellent durability and reliability, which can create a suction path that is sufficiently secured, does not suffer from thermal strain even if a temperature difference occurs on the cylinder wall.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は従来の圧縮機の一例を示す側断面図、第2図は
本発明の圧縮機の一実施例を示す縦断面図、第3図は第
2図のA−A線における断面図である。 21・・・・・シリンダ、22 ・・・・吸入孔、20
・・・・・吸入通路、11・・・・・ロータ、26・・
・・・隙間、15・・・・・・後側板。 代理人の氏名 弁理士 中 尾 敏 男 ほか1名第1
図 第2図
Fig. 1 is a side sectional view showing an example of a conventional compressor, Fig. 2 is a longitudinal sectional view showing an embodiment of the compressor of the present invention, and Fig. 3 is a sectional view taken along line A-A in Fig. 2. It is. 21... Cylinder, 22... Suction hole, 20
... Suction passage, 11 ... Rotor, 26 ...
...Gap, 15...Rear side plate. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure 2

Claims (1)

【特許請求の範囲】[Claims]  円筒状内壁を有するシリンダと、複数の放射状スリッ
トを配したロータと、前記スリット内を滑動するベーン
と、前記シリンダを前後から閉塞す側板と、前記シリン
ダの前記側板との端面に設けられた吸入孔と、前記側板
に設けられ、前記シリンダ内に開孔した吸入通路からな
る圧縮機。
A cylinder having a cylindrical inner wall, a rotor having a plurality of radial slits, a vane that slides within the slit, a side plate that closes the cylinder from the front and back, and a suction provided on an end surface of the side plate of the cylinder. A compressor comprising a hole and a suction passage provided in the side plate and opened in the cylinder.
JP12302984A 1984-06-15 1984-06-15 Compressor Pending JPS614885A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12302984A JPS614885A (en) 1984-06-15 1984-06-15 Compressor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12302984A JPS614885A (en) 1984-06-15 1984-06-15 Compressor

Publications (1)

Publication Number Publication Date
JPS614885A true JPS614885A (en) 1986-01-10

Family

ID=14850453

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12302984A Pending JPS614885A (en) 1984-06-15 1984-06-15 Compressor

Country Status (1)

Country Link
JP (1) JPS614885A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63168797U (en) * 1987-04-23 1988-11-02
US5924856A (en) * 1995-12-08 1999-07-20 Zexel Corporation Vane compressor having a movable pressure plate and a unitary front head and cam ring
US6152711A (en) * 1997-12-08 2000-11-28 Van Doorne's Transmissie B.V. Roller vane pump having a suction port through the cam ring

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63168797U (en) * 1987-04-23 1988-11-02
JPH0320718Y2 (en) * 1987-04-23 1991-05-02
US5924856A (en) * 1995-12-08 1999-07-20 Zexel Corporation Vane compressor having a movable pressure plate and a unitary front head and cam ring
US6022204A (en) * 1995-12-08 2000-02-08 Zexel Corporation Vane compressor having a single suction groove formed in a side member which is in direct contact with a cam ring
US6152711A (en) * 1997-12-08 2000-11-28 Van Doorne's Transmissie B.V. Roller vane pump having a suction port through the cam ring
US6312243B1 (en) 1997-12-08 2001-11-06 Van Doorne's Transmissie B.V. Roller vane pump having straight line segments on the rotor
US6375445B1 (en) 1997-12-08 2002-04-23 Van Doorne's Transmissie B.V. Roller vane pump having a partly curved vane slot

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