The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 17, 1987
Filed:
Mar. 27, 1985
Yukio Kusakawa, Anjo, JP;
Nippondenso Co., Ltd., Kariya, JP;
Abstract
A motor-driven regenerative type fuel pump is provided with an overflow mechanism disposed adjacent to a discharge pipe. The overflow mechanism includes a plug hole in a pump housing and a plug member disposed in the plug hole. The pump housing is formed with an axially inclined recess circumferentially extending around the plug member and communciated with an axial groove formed in the plug member. The rate of overflow of fuel and thus the upper limit of the pump discharge can be adjusted by rotating the plug member relative to the plug hole to compensate for any insufficiency of pressure regulating ability of a pressure regulator in an engine fuel injection system. The overflow mechanism further includes an adjustment-locking member attached to the pump housing and the plug member after the overflow-adjustment by the manufacture has been completed.