JPS58183992U

JPS58183992U - oil pump

Info

Publication number: JPS58183992U
Application number: JP7987382U
Authority: JP
Inventors: 後藤　信夫
Original assignee: 日産自動車株式会社
Priority date: 1982-06-01
Filing date: 1982-06-01
Publication date: 1983-12-07

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１ａおよび１ｂ図は、それぞれ従来のオイルポンプの
縦断面図およびＩ−Ｉ線上の断面図、第２図は本考案の
第１の実施例のポンプ包囲部とこれに包囲されるポンプ
作動部の一部の線図的断面図であり、第２ａ図は常温時
、第２ｂ図は高温時の断面図、第３ａおよび３ｂ図は、
本考案の第２の実施例の第２ａおよび２ｂ図と同様の常
温時および高温時の断面図、第４図は本考案の第３の実
施例の一ハウジングおよびハウジングカバーの部分の線
図的断面図である。　　′ １・・・ハウジング、２・・・ハウジングカバー、３・
・・スライドリングまたはカムリング、４・・・滑動ベ
ーン、５・・田−タ、６・・・枢軸、７・・・ばね、８
・・・ピストン、９・・・ブツシュロッド、１０．１１
・・・フィードバック回路、１２・・・駆動軸、１３・
・・つメ、１４゜１５・・・サイドプレート、−１６・
・・吸入通路、１７・・・吐出通路、１８・・・環状溝
、１９．２０・・・スペーサ部材。Figures 1a and 1b are a longitudinal cross-sectional view and a cross-sectional view taken along the line I-I of a conventional oil pump, respectively, and Figure 2 is a pump surrounding portion and a pump operating portion surrounded by the pump surrounding portion of the first embodiment of the present invention. Fig. 2a is a cross-sectional view of a part of the wafer at normal temperature, Fig. 2b is a sectional view at high temperature, and Fig. 3a and 3b are
2a and 2b of the second embodiment of the present invention; FIG. 4 is a diagrammatic view of a housing and a housing cover portion of the third embodiment of the present invention; FIG. ' 1...Housing, 2...Housing cover, 3...
...Slide ring or cam ring, 4...Sliding vane, 5...Data, 6...Pivot, 7...Spring, 8
...Piston, 9...Butsch rod, 10.11
...Feedback circuit, 12... Drive shaft, 13.
...Claw, 14°15...Side plate, -16.
... Suction passage, 17... Discharge passage, 18... Annular groove, 19.20... Spacer member.

Claims

[Scope of utility model registration request]

In an oil pump, the pump operating part is arranged in a space surrounded by a housing and a housing cover, and the part surrounding the pump operating part is made of a material having a higher coefficient of thermal expansion than the material of the pump operating part. A spacer member having a coefficient of thermal expansion that compensates for an increase in the side clearance between the surrounding part and the surrounded part due to a temperature increase due to a difference in coefficient of thermal expansion between the surrounding part and the pump operating part surrounded by the spacer member is provided in the surrounding space. An oil pump characterized by: