JPS58167785U

JPS58167785U - internal gear pump

Info

Publication number: JPS58167785U
Application number: JP6462882U
Authority: JP
Inventors: 阿部　栄
Original assignee: 厚木自動車部品株式会社
Priority date: 1982-04-30
Filing date: 1982-04-30
Publication date: 1983-11-09

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) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図はインターナルギヤポンプカバーを取外した状態
の正面図、第２図は従来のインターナルギヤポンプの縦
断面図、第３図は本考案のインターナルギヤポンプの縦
断面図、第４図は本考案の他の実施例の縦断面図である
。１・・・ポンプボディ、１ａ・・・ボディ側インロ一部
、２・・・インナーギヤ、２ａ・・・ギヤ側インロ一部
、３・・・アウターギヤ、４・・・ポンプ空間、４ａ・
・・吸入室、　　４ｂ・・・吐出室、５・・・クレセン
ト、１０・・・インロ一部保護材。Fig. 1 is a front view with the internal gear pump cover removed, Fig. 2 is a vertical sectional view of a conventional internal gear pump, Fig. 3 is a longitudinal sectional view of the internal gear pump of the present invention, and Fig. 4 is a longitudinal sectional view of the internal gear pump of the present invention. FIG. 6 is a longitudinal cross-sectional view of another embodiment of the invention. DESCRIPTION OF SYMBOLS 1... Pump body, 1a... Part of body side inlet, 2... Inner gear, 2a... Part of gear side inlet, 3... Outer gear, 4... Pump space, 4a.
...Suction chamber, 4b...Discharge chamber, 5...Crescent, 10...Partial protection material for inlet.

Claims

[Scope of utility model registration request]

, a pump body 1, an inner gear 2 that is rotatably attached to the pump body 1, and a side portion of the inner gear 2 that is rotatably housed in the pump body 1 with one side of the inner gear 2 inscribed and meshed with each other. The pump body 1 is provided with a crescent 5 that separates a pump space 4 in a non-meshing portion between the outer gear 3 and the inner gear 2 into a suction chamber 4a and a discharge chamber 4b, and Intro part 1
In the internal gear pump, the inner gear 2 is rotatably attached to the pump body 1 by providing a gear-side spigot part 2a on the inner gear 2 and fitting these spigot parts la and 2a into each other. This internal gear pump is characterized in that a pilot part protective material 10 having excellent wear resistance, lubricity, etc. is interposed between pilot parts 1a and 2a.