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:
Jan. 08, 1985
Filed:
May. 13, 1983
Ikuo Takahashi, Katsuta, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A fuel pump for internal combustion engine has a working chamber which is divided into two chamber sections by a shuttle disposed therein, and a pumping chamber independent from the working chamber. After a delivery of a fuel into one of the chamber sections and the pumping chamber, the one chamber section is brought into communication with an injection nozzle and the pumping chamber is made to communicate with the other chamber section. Then, the volume of the pumping chamber is decreased and the fuel is pumped into the other chamber section from the pumping chamber, so that the fuel in the one chamber section is pumped into the injector nozzle through the shuttle by means of the fuel contained in the other chamber section.