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:
Oct. 15, 1985
Filed:
Sep. 16, 1983
Toshihiko Igashira, Toyokawa, JP;
Yasuyuki Sakakibara, Nishio, JP;
Seiko Abe, Okazaki, JP;
Hiroshi Koide, Okazaki, JP;
Kazuo Shinoda, Toyota, JP;
Nippon Soken, Inc., Nishio, JP;
Toyota Jidosha Kabushiki Kaisha, Tokyo, JP;
Abstract
In a fuel injection apparatus for an internal combustion engine, the fuel injection is ended by a spill mechanism provided in a spill passage communicating with a pumping chamber. A piston opening and closing the spill passage is a free piston, and a solenoid valve to open and close a cylinder in which the free piston is disposed, is also provided. As the solenoid valve closes the cylinder, the free piston closes the spill passage, thus enabling the fuel feed to the fuel injection valve. When the solenoid valve opens the cylinder, the free piston opens the spill passage. Thus, the fuel flows through the spill passage to the fuel reservoir.