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:
Nov. 01, 1994
Filed:
Oct. 14, 1993
Kazushi Nakashima, Obu, JP;
Shinichi Iwamoto, Obu, JP;
Nippondenso Co., Ltd., Kariya, JP;
Abstract
In a fuel supply system for internal combustion engines, a fuel delivery pipe to which fuel injectors are mounted through respective connectors are connected to a fuel tank through a fuel piping without return piping. At least one of the connectors of the injectors is extended upwardly to open at an upper portion in the delivery pipe. A fuel pipe which is branched off from the fuel piping is provided above the delivery pipe, and the fuel pipe and the delivery pipe are connected with each other by a connecting orifice. The connecting orifice also extends upwardly to open at an upper portion in the fuel pipe. In the event that air or fuel vapor is generated in the fuel supply system, it is accumulated in the fuel pipe and then gradually introduced into the delivery pipe 1 through the connecting orifice, and rapidly purged with fuel through the extended connectors and the injectors when the injectors inject fuel into an engine.