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. 15, 1996
Filed:
Oct. 05, 1995
Manabu Kobayashi, Iwata, JP;
Takamitsu Suzuki, Iwata, JP;
Yamaha Hatsudoki Kabushiki Kaisha, Iwata, JP;
Abstract
A valve trains drive assembly for a V-type engine which includes a balancing shaft. The valve train includes a flexible transmitter between a crankshaft sprocket and one of two camshafts in the cylinder heads as well as a sprocket around the balancing shaft. Each of the camshafts that are driven directly by the crankshaft then drive the opposed camshaft within each cylinder head via a transmission. The transmissions within each cylinder head between camshafts may be located at the forward or at the rear end thereof. Both the intake camshafts, or both the exhaust camshafts, or a combination thereof may be directly driven by the crankshaft sprocket. An improved breather oil separator is positioned between the balancing shaft and an induction system.