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. 05, 1991
Filed:
Jan. 30, 1990
Applicant:
Inventors:
Noritaka Matsuo, Iwata, JP;
Hideaki Ito, Iwata, JP;
Assignee:
Yamaha Hatsudoki Kabushiki Kaisha, Iwata, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01M / ;
U.S. Cl.
CPC ...
123 / ; 1231 / ;
Abstract
An apparatus and method for maintaining the control of lubricant to a two cycle engine so as to provide adequate lubrication without over lubrication and deleterious exhaust conditions, such as smoke. The system includes a lubricant pump that has both its output and its timing of discharge variable. Under one range of running conditions, the normal conditions, the output of the pump is maintained constant and the timing of the output is varied. Under high speed, high load conditions, the time of operation of the pump is held constant and the output time of the pump is varied.