JPH01111185U

JPH01111185U -

Info

Publication number: JPH01111185U
Application number: JP587288U
Authority: JP
Priority date: 1988-01-22
Filing date: 1988-01-22
Publication date: 1989-07-26

Description

[Brief explanation of the drawing]

第１図は本考案のプランジヤ形高油圧ポンプの
縦断面図、第２図及び第３図は従来構成のプラン
ジヤ形高油圧ポンプの縦断面図であつて、第２図
は第３図の構成を改良して本出願人が実願昭５９
―１１４９８５号（実開昭６１―３２５７５号）
を以て提案した構成である。符号の説明：１……ポンプ筐体、２……シリン
ダ、３……プランジヤ、４……回転軸、５……プ
ランジヤ３に往復運動を与える手段、６……ポン
プ作用室、７……油の吸入通路、８……油の吐出
通路、９，１３……スプリング、１０，１４……
弁座、１１，１５……球状弁体、１２……吸入側
逆止弁、１６……吐出側逆止弁、１７……ロータ
リ弁、２１……電動モータ、２２……印籠部、２
３……プランジヤに往復運動を与える手段を収容
する空間、２４……ポンプ作用室６と空間２３を
連通する油の通路、２５……スプリング、２６，
２７……ボールベアリング。 FIG. 1 is a vertical sectional view of a plunger type high hydraulic pump of the present invention, FIGS. 2 and 3 are vertical sectional views of a plunger type high hydraulic pump of conventional configuration, and FIG. 2 is a configuration of FIG. 3. The present applicant improved the application in 1984.
-No. 114985 (Utility Model No. 61-32575)
This is the configuration proposed by. Explanation of symbols: 1... Pump housing, 2... Cylinder, 3... Plunger, 4... Rotating shaft, 5... Means for giving reciprocating motion to plunger 3, 6... Pump action chamber, 7... Oil suction passage, 8... oil discharge passage, 9, 13... spring, 10, 14...
Valve seat, 11, 15... Spherical valve body, 12... Suction side check valve, 16... Discharge side check valve, 17... Rotary valve, 21... Electric motor, 22... Inro part, 2
3... Space for accommodating means for giving reciprocating motion to the plunger, 24... Oil passage communicating pump action chamber 6 and space 23, 25... Spring, 26,
27...Ball bearing.

Claims

[Scope of utility model registration request]

A rotating shaft 4 equipped with a means 5 for giving reciprocating motion to the plunger 3 is disposed on one end side of the plunger 3 which is slidably disposed within a cylinder 2 formed in the pump housing 1. A pump action chamber 6 is formed in contact with the other end surface in which a pump action is performed by cooperation of the plunger 3 and a suction valve and a discharge valve, and is opened to the pump action chamber 6 and formed in the pump housing 1. Oil discharge passage 8
In a plunger type high hydraulic pump in which a discharge side check valve 16 consisting of a spherical valve body 15 pressed against a valve seat 14 by a spring 13 is disposed as the discharge valve, means for imparting reciprocating motion to the plunger 3. An oil passage 24 is formed in the plunger 3 and communicates between a space 23 accommodating the pump 5 and the pump action chamber 6. A space 23 in which the suction side check valve 12 is arranged and accommodates the means 5 for giving reciprocating motion to the plunger 3
A plunger type high hydraulic pump in which an oil suction passage 7 that opens to the pump housing 1 is formed in the pump housing 1.