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:
Oct. 19, 2021
Filed:
Jun. 19, 2019
Applicant:
Taiho Kogyo Co., Ltd., Toyota, JP;
Inventors:
Ken Nakamuta, Toyota, JP;
Syuhei Nishida, Okazaki, JP;
Assignee:
TAIHO KOGYO Co., Ltd., Toyota, JP;
Primary Examiner:
Int. Cl.
CPC ...
F03C 2/00 (2006.01); F03C 4/00 (2006.01); F04C 2/00 (2006.01); F04C 2/344 (2006.01); F01C 21/08 (2006.01); F01C 19/06 (2006.01);
U.S. Cl.
CPC ...
F04C 2/3441 (2013.01); F01C 19/06 (2013.01); F01C 21/0809 (2013.01); F01C 21/0881 (2013.01); F04C 2/344 (2013.01);
Abstract
A vane pump includes a housing, a rotor rotatable about a rotation axis, and a vane that rotates together with the rotor and reciprocates in a radial direction with respect to the rotor, the vane dividing a pump chamber into a plurality of working chambers. At least one of opposite end surfaces of the vane in an axial direction is a sliding surface that slidably contacts an inner surface of the housing via an oil film, and an oil reservoir portion is provided in the sliding surface in a recessed manner.