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:
May. 14, 1991
Filed:
Dec. 27, 1989
Applicant:
Inventors:
Jun Taue, Iwata, JP;
Osamu Maeda, Iwata, JP;
Assignee:
Yamaha Hatsudoki Kabushiki Kaisha, Iwata, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02M / ;
U.S. Cl.
CPC ...
123447 ; 239 88 ; 239585 ;
Abstract
An accumulator type of fuel injection nozzle that permits greater control of the desired fuel discharge rate by achieving a triangular form of discharge with lesser amount of fuel being discharged during initial opening of the injection nozzle. This is achieved by selecting the preload of a spring that urges the injection valve to its closed position in accordance with formula set forth herein. The load and speed of the engine is controlled by varying the duty cycle of the injection nozzle and the pressure of the fuel supply to it.