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:
Mar. 05, 2013
Filed:
Feb. 24, 2009
Minoru Shiino, Hadano, JP;
Masaaki Niiro, Hadano, JP;
Koichi Homma, Hadano, JP;
Michihiro Kameda, Hadano, JP;
Masayasu Nagado, Hadano, JP;
Minoru Shiino, Hadano, JP;
Masaaki Niiro, Hadano, JP;
Koichi Homma, Hadano, JP;
Michihiro Kameda, Hadano, JP;
Masayasu Nagado, Hadano, JP;
Nittan Valve Co., Ltd., Hadano-shi, JP;
Abstract
A phase changing device for automobile engine, the device comprising curved first guide grooves formed in the control rotor, each groove skewed with respect to a circumference of a circle centered at the rotational axis; oblique guide grooves each groove formed in the middle rotor and extending at an angle with respect to a radius crossing the groove; second guide grooves formed in the drive rotor and skewed with respect to the circumference of a circle centered at the rotational axis, block sections each extending along, and movable in, the respective first guide; first slide members each protruding from the respective block section for engagement with, and for movement in, the respective skewed guide groove; and phase varying members each having a second slide member that extends through an escape groove formed in the middle rotor and engages the respective second guide groove to move in the second guide groove.