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. 29, 1985
Filed:
Apr. 08, 1983
Kazuo Shinoda, Toyota, JP;
Nobuyuki Kobayashi, Toyota, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Abstract
A spill port for discharging fuel is provided in a wall defining a high pressure chamber defined in a fuel injection pump, and capable of being successively communicated with respective cylinders. Opening and closing of this spill port is controlled by a solenoid valve. A fuel injection time period is calculated, pressure in a high pressure chamber is detected by a pressure sensor to obtain a fuel injection starting time, and the fuel injection time period thus calculated is added to the fuel injection starting time to obtain a fuel injection ending time. The solenoid valve is actuated to open the spill port at this fuel injection ending time, whereby the fuel in the high pressure chamber is discharged so that fuel injection is discontinued. The respective operations described above may be controlled by a microcomputer.