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. 15, 2019
Filed:
Sep. 09, 2016
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi-ken, JP;
Kazuhiro Asayama, Nagoya, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, JP;
Abstract
A fuel pump includes a plunger that reciprocates inside a cylinder. The fuel pump includes a first movable element connected to the plunger, a second movable element that functions as a counterweight for preventing or reducing vibrations that are created by reciprocation of the first movable element, an electromagnet provided between the first movable element and the second movable element, a magnetic member that is provided between the first movable element and the second movable element and that attracts both the first movable element and the second movable element when the electromagnet is energized, and a first spring that urges the first movable element and the second movable element so as to move away from each other.