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. 11, 2019
Filed:
Jun. 18, 2015
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi-ken, JP;
Koji Aso, Toyota, JP;
Hideaki Hayashi, Nagoya, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;
Abstract
Provided is a fuel supply device for an internal combustion engine. When fuel pressure in a high-pressure fuel pipe changes as a result of the driving of a high-pressure pump, the changing fuel pressure propagates as pulsation into a low-pressure fuel pipe. A degree of influence of propagation of pulsation decreases as fuel pressure in the low-pressure fuel pipe increases. When the high-pressure pump is in an operating state where the degree of influence of the pulsation of the fuel pressure propagating from the high-pressure fuel pipe on the fuel pressure in the low-pressure fuel pipe is high, boost control for driving a feed pump to raise the fuel pressure in the low-pressure fuel pipe is executed.