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:
Jan. 22, 1985
Filed:
Oct. 15, 1982
Norihiko Nakamura, Mishima, JP;
Toyokazu Baika, Susono, JP;
Toshio Miki, Yao, JP;
Minoru Kohigashi, Chiryu, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Koyo Seiko Kabushiki Kaisha, Osaki, JP;
Abstract
An apparatus for controlling valve timing in an internal combustion engine. The apparatus includes a pair of sleeves inserted into each other. One of the sleeves is connected to a camshaft of the engine. The other sleeve is connected to a timing pulley which is connected to the crankshaft of the engine. One of the sleeves has diametrically opposite slits while the other sleeve has diametrically opposite slits located adjacent to the respective slits in the one sleeve. The adjacent slits have central lines which are skewed with respect to each other. Roller-bearing units are arranged in the slits and are mounted on an axially slidable slider. Movement of the slider causes the generation of angular displacement between the sleeves so as to obtain a variable valve timing.