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:
Feb. 22, 1994
Filed:
Apr. 07, 1992
Applicant:
Inventor:
Yoshinobu Yashiro, Iwata, JP;
Assignee:
Yamaha Hatsudoki Kabushiki Kaisha, Iwata, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01M / ;
U.S. Cl.
CPC ...
1231 / ; 184-74 ;
Abstract
A lubricating oil supplying system for a two cycle engine that includes a reciprocating engine drive lubricant pump and a solenoid controlled bypass valve for selectively delivering lubricant to the engine of by bypassing it back to the inlet side of the lubricant pump to control the amount of lubricant supplied to the engine. The duty cycle of solenoid is increased as the engine speed is decreased and the duty cycle is also decreased when the throttle is opened rapidly so as to insure the proper amount of lubricant flow to the engine under all conditions, both transient and steady state.