JPS59168590U

JPS59168590U - Fuel pump

Info

Publication number: JPS59168590U
Application number: JP6307083U
Authority: JP
Inventors: 邦彦伊藤
Original assignee: 自動車電機工業株式会社
Priority date: 1983-04-28
Filing date: 1983-04-28
Publication date: 1984-11-12

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図および第２図はこの考案の一実施例による燃料ポ
ンプの縦断面図および側板部分の正面図、第３図はこの
考案の他の実施例によるポンプケーシング部分の上半縦
断面図である。１・・・燃料ポンプ、５・・・吐出管、１１・・・電機
子、１２・・・電機子軸、２０・・・ポンプケーシング
、２１゜２２・・・側板、２３・・・ステータ、２１ａ
、２２ａ。２３ａ・・・貫通孔、２５・・・ポンプ室、２６・・・
ロータ、２９・・・吸入管、３１・・・吸込口、３２・
・・吐出口、３５．３６・・・弾性膜、３７・・・空胴
、４０・・・脈動吸収装置、４５・・・弾性膜、４６・
・・弾性袋、４７・・・空胴、４８・・・脈動吸収装置
。1 and 2 are a vertical sectional view and a front view of a side plate portion of a fuel pump according to an embodiment of this invention, and FIG. 3 is an upper half vertical sectional view of a pump casing portion according to another embodiment of this invention. be. DESCRIPTION OF SYMBOLS 1... Fuel pump, 5... Discharge pipe, 11... Armature, 12... Armature shaft, 20... Pump casing, 21° 22... Side plate, 23... Stator, 21a
, 22a. 23a... Through hole, 25... Pump chamber, 26...
Rotor, 29... Suction pipe, 31... Suction port, 32...
... Discharge port, 35.36... Elastic membrane, 37... Cavity, 40... Pulsation absorber, 45... Elastic membrane, 46.
... Elastic bag, 47... Cavity, 48... Pulsation absorbing device.

Claims

[Scope of utility model registration request]

In a fuel pump that sucks in and discharges fuel by rotating a rotor within a pump casing, the pump casing is provided with a through hole that communicates a fuel suction side and a fuel discharge side, and the through hole has a cavity for pulsation absorption. A fuel pump characterized by being equipped with a device.