JPH0373685U

JPH0373685U -

Info

Publication number: JPH0373685U
Application number: JP13561489U
Authority: JP
Priority date: 1989-11-23
Filing date: 1989-11-23
Publication date: 1991-07-24

Description

[Brief explanation of drawings]

第１図〜第６図は本考案の一実施例を示し、第
１図は平断面図、第２図は全体縦断面図、第３図
は第２図における−線に沿う拡大断面図、第
４図は第２図における−線に沿う一部省略の
拡大断面図、第５図は第４図におけるＡ矢示図、
第６図は作用説明図である。また第７図は従来例
を示す第１図対応の平断面図、第８図は第７図に
おける−線に沿う拡大断面図である。１……ケーシング、２，３……歯車、２ｂ，３
ｂ……側面、１０，１１……高低圧区画シール、
１２，１３……側板、１２ａ，１３ａ……内側面
、１２ｂ，１３ｂ……外側面、１４，１５……軸
受ケース、１４ａ，１５ａ……内側面、１４ｂ，
１５ｂ……外側面、Ｌ……低圧域、Ｈ……高圧域
。 1 to 6 show an embodiment of the present invention, in which FIG. 1 is a plan sectional view, FIG. 2 is an overall vertical sectional view, and FIG. 3 is an enlarged sectional view taken along the - line in FIG. Fig. 4 is an enlarged cross-sectional view along the - line in Fig. 2, with some parts omitted; Fig. 5 is a view indicated by arrow A in Fig. 4;
FIG. 6 is an explanatory diagram of the operation. 7 is a plan sectional view corresponding to FIG. 1 showing a conventional example, and FIG. 8 is an enlarged sectional view taken along the line - in FIG. 1... Casing, 2, 3... Gear, 2b, 3
b...Side surface, 10, 11...High and low pressure compartment seal,
12, 13... Side plate, 12a, 13a... Inner surface, 12b, 13b... Outer surface, 14, 15... Bearing case, 14a, 15a... Inner surface, 14b,
15b...outer surface, L...low pressure area, H...high pressure area.

Claims

[Scope of utility model registration request]

a pair of gears arranged in a casing and meshing with each other; a movable side plate having an inner surface in contact with the side surface of the gear and an outer surface joined to the inner surface of the bearing case; and an outer surface of the bearing case. and a high and low pressure compartment seal interposed between the casing and the casing;
In the gear pump configured to urge the side plate in the axial direction via the bearing case with the high and low pressure division seal, the outer surface of the side plate is an inclined surface that becomes thicker toward the low pressure region side, and the bearing case A gear pump characterized in that the inner surface of the side plate is an inclined surface opposite to the outer surface of the side plate.