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:
Jun. 05, 2018
Filed:
Aug. 01, 2011
Kazuhiro Asayama, Nagoya, JP;
Takashi Usui, Toyota, JP;
Kazuhiro Asayama, Nagoya, JP;
Takashi Usui, Toyota, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota-shi, JP;
Abstract
A fuel injection pump is provided. The fuel injection pump includes a valve holder, a plunger, an inlet valve, an outlet valve, and a relief valve. The valve holder includes a pump chamber and a seat. The plunger configured to pressurize or depressurize the pump chamber. The inlet valve, the outlet valve, and the relief valve are arranged in an interior of the valve holder. The relief valve is provided on a downstream side of the outlet valve. The pump chamber is formed between the inlet valve and the outlet valve. The seat has a discharge passage and a return passage. The return passage is configured such that the fuel flows through the return passage from the downstream side of the outlet valve to an upstream side of the relief valve. The discharge passage and the return passage are formed offset from each other in the seat.