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. 14, 2016
Filed:
Dec. 02, 2014
Hitachi Automotive Systems, Ltd., Hitachinaka-shi, Ibaraki, JP;
Atsushi Watanabe, Atsugi, JP;
HITACHI AUTOMOTIVE SYSTEMS, LTD., Hitachinaka-Shi, JP;
Abstract
In a valve timing control apparatus configured to enable rotary motion of a vane rotor relative to a sprocket in a phase-retard direction or in a phase-advance direction by controlling hydraulic-pressure supply-and-exhaust for each of phase-advance hydraulic chambers and hydraulic-pressure supply-and-exhaust for each of phase-retard hydraulic chambers, first and second lock pins are located in a large-diameter rotor portion rather than a small-diameter rotor portion. The rotary motion of the vane rotor relative to the sprocket from an intermediate lock position between a maximum phase-advance position and a maximum phase-retard position is restricted by engagement of the first lock pin with a first lock hole and by engagement of the second lock pin with a second lock hole. The vane rotor is held at the maximum phase-retard position by engagement of the first lock pin with the second lock hole.