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. 18, 1994
Filed:
Oct. 30, 1992
Applicant:
Inventor:
Tsuyoshi Kamiya, Iwata, JP;
Assignee:
Yamaha Hatsudoki Kabushiki Kaisha, Iwata, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01M / ;
U.S. Cl.
CPC ...
1231 / ; 123 / ; 184-74 ;
Abstract
A lubricating system for an engine and particularly for a two cycle crankcase compression internal combustion engine wherein the amount of lubricant supplied by a reciprocating pump to the engine is varied by selectively delivering lubricant to the engine and bypassing lubricant from the pump back to the inlet side of the pump. The total amount of lubricant supplied is controlled by setting a duty ratio at the beginning of a control cycle and varying the time of the control in response to engine condition sensed during the control cycle so as to provide good transient control.