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:
Dec. 11, 1990
Filed:
Nov. 13, 1986
Applicant:
Inventors:
Naoyuki Tanaka, Abiko, JP;
Yozo Nakamura, Ibaraki, JP;
Akira Arai, Ibaraki, JP;
Mitsuru Nakamura, Ibaraki, JP;
Tsunehiro Endo, Hitachiota, JP;
Yuzo Kadomukai, Ibaraki, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02D / ; F02B / ;
U.S. Cl.
CPC ...
36443108 ; 36443103 ; 123419 ; 123436 ;
Abstract
An engine load torque controller detects the engine output torque variation as an engine speed variation and controls the load torque of an auxiliary machinary driven by the engine basing on the detected speed variation, thereby diminishing the vibration of the engine.