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:
Sep. 11, 1990
Filed:
Dec. 14, 1989
Nobuhisa Jingu, Yokohama City, JP;
Yoshio Iwasa, Nagareyama City, JP;
Nissan Motor Co., Ltd., Yokohama City, JP;
Abstract
A camshaft driving arrangement for an internal combustion engine comprises a cylinder head formed with a cam chamber, and an idler chamber communicating with an oil pan and an end face of the cylinder head. The end face includes openings allowing communication between the cam chamber and the idler chamber. An idler shank is fixedly mounted on the cylinder head. An idler sprocket is rotatably supported on the idler shank, and includes a radial portion disposed adjacent the end face. The end face, the radial portion, and the idler shank cooperate with each other to define a passage allowing oil flowing out of the cam chamber via the openings to flow down toward the oil pan.