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. 04, 2018
Filed:
Jan. 09, 2015
Hitachi Automotive Systems, Ltd., Hitachinaka-shi, Ibaraki, JP;
Yasuhide Takada, Atsugi, JP;
HITACHI AUTOMOTOVE SYSTEMS, LTD., Hitachinaka-Shi, JP;
Abstract
A control valve is configured to reduce an axial length of a device as much as possible, thereby improving its mountability. The valve is equipped with a valve body functioning as a cam bolt for connecting a vane rotor to one end of a camshaft, a sleeve fixed to an inner peripheral surface of the valve body, and a spool valve element axially slidably housed in the sleeve for switching between supply and discharge of working fluid to and from each of a phase-retard working chamber and a phase-advance working chamber. The valve body has a male screw part formed on an outer peripheral surface and screwed into a female screw part formed in a cam bolt hole. The position of formation of the male screw part and the position of the spool valve element are arranged to overlap with each other in an axial cross-section.