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. 30, 2001
Filed:
Sep. 08, 1999
Takeshi Matsunaga, Kan{dot over (a)}gawa-ken, JP;
Hideki Yamamura, Saga-ken, JP;
Nissan Motor Co., Ltd., Yokohama, JP;
Abstract
An oil pump attachment structure is provided for an engine. The oil pump attachment structure includes an oil pump,coaxially driven by the crankshaft,A pump housing,of the pump,is disposed between a front cover,for covering timing chains,and crank sprockets,while leaving a clearance against the front cover,The pump housing,is also fastened to a cylinder block,so as to straddle the timing chains,, through stays,by bolts,With this arrangement, pulsation produced during the operation of the oil pump,is not transmitted to the front cover,directly, so that noise radiated from a front face of the front cover,can be reduced.