JPH0347487U

JPH0347487U -

Info

Publication number: JPH0347487U
Application number: JP10864489U
Authority: JP
Priority date: 1989-09-19
Filing date: 1989-09-19
Publication date: 1991-05-02
Anticipated expiration: 2004-09-19
Also published as: JPH0744779Y2

Description

[Brief explanation of drawings]

図面は本考案の実施例を示すものであり、その
第１図は本考案の縦断側面図、第２図は本考案の
要部斜視図、第３図は本考案の要部拡大断面図、
第４図はポンプボデイーの要部斜視図、第５図は
インナーロータの一部切除した斜視図、第６図、
第７図は回転軸及びインナーロータの要部斜視図
、第８図は本考案の要部を拡大した分解断面図、
第９図、第１０図は本考案の別の実施例の要部拡
大断面図、第１１図は本考案の別の実施例を示す
縦断側面図、第１２図は第１１図における実施例
の要部分解斜視図、第１３図は第１１図の要部斜
視図、第１４図は本考案の縦断正面図、第１５図
は本考案を使用した漏洩防止システム全体の断面
図である。Ａ……ケーシング、Ａ_１……ポンプボデイー、
Ｃ……インナーロータ、１……ロータ室、１ａ…
…ロータ室ボデイー側円形壁面、２……ボス孔、
３……環状突出部、４……被固定孔、５……環状
凹段部、６……漏れオイル誘導部、１０……回転
軸、１０ａ……非円形部。 The drawings show an embodiment of the present invention, in which Fig. 1 is a longitudinal side view of the invention, Fig. 2 is a perspective view of the main part of the invention, and Fig. 3 is an enlarged sectional view of the main part of the invention.
Fig. 4 is a perspective view of the main parts of the pump body, Fig. 5 is a partially cutaway perspective view of the inner rotor, Fig. 6,
FIG. 7 is a perspective view of the main parts of the rotating shaft and inner rotor, and FIG. 8 is an exploded sectional view of the main parts of the present invention.
9 and 10 are enlarged sectional views of main parts of another embodiment of the present invention, FIG. 11 is a longitudinal sectional side view showing another embodiment of the present invention, and FIG. 12 is an enlarged sectional view of another embodiment of the present invention. FIG. 13 is an exploded perspective view of the main parts, FIG. 13 is a perspective view of the main parts of FIG. 11, FIG. 14 is a longitudinal sectional front view of the present invention, and FIG. 15 is a sectional view of the entire leakage prevention system using the present invention. A...Casing, _A1 ...Pump body,
C...Inner rotor, 1...Rotor chamber, 1a...
...Rotor chamber body side circular wall surface, 2...Boss hole,
3... Annular protrusion, 4... Fixed hole, 5... Annular recessed step, 6... Leakage oil guiding part, 10... Rotating shaft, 10a... Non-circular part.

Claims

[Scope of utility model registration request]

An annular protrusion is formed around the opening of the boss hole in the rotor chamber body side circular wall of the pump body of the casing having the rotor chamber, and an annular protrusion is formed around the opening of the fixed hole of the inner rotor installed in the rotor chamber. , an annular recessed part that can be rotatably inserted into the annular protrusion is formed, a space between the annular recessed part and the annular protrusion is used as a leakage oil guide part, and an inner rotor is inserted into the leakage oil guide part. A trochoid oil pump characterized in that a leakage oil return path formed between a fixed hole and a non-circular portion of a rotating shaft communicates with each other.