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. 19, 2002
Filed:
Feb. 11, 2000
Applicant:
Inventor:
Naosumi Tada, Nabari, JP;
Assignee:
Borg-Warner Automotive K.K., Nabari, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16H 7/08 ;
U.S. Cl.
CPC ...
F16H 7/08 ;
Abstract
A hydraulic tensioner for an engine timing chain includes a housing having a bore. The end portion of a plunger is slidably fitted into the bore. The end of an oil inlet provided in an engine block is fitted with a seal cap having a C-shaped cross section and an outside concavity. The hydraulic tensioner utilizes the concavity as an oil reservoir. Oil passages are formed in the housing to connect an oil chamber with the concavity. The seal cap has an orifice to connect the oil inlet with the concavity. The present invention results in decreased space occupied by and reduced manufacturing cost for a hydraulic tensioner having an oil reservoir.