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:
Dec. 08, 2020
Filed:
Jul. 03, 2019
Denso Corporation, Kariya, JP;
Tetsuro Mitsutani, Kariya, JP;
Jing Xu, Kariya, JP;
DENSO CORPORATION, Kariya, JP;
Abstract
When a supply check valve is opened, the supply check valve enables a flow of oil from an oil supply source toward a pressure accumulation space. When the supply check valve is closed, the supply check valve limits a flow of the oil from the pressure accumulation space toward the oil supply source. When a recycle check valve is opened, the recycle check valve enables a flow of the oil from a retard chamber or an advance chamber toward the pressure accumulation space. When the recycle check valve is closed, the recycle check valve limits a flow of the oil from the pressure accumulation space toward the retard chamber or the advance chamber. A characteristic of the supply check valve with respect to valve opening of the supply check valve is different from a characteristic of the recycle check valve with respect to valve opening of the recycle check valve.