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:
Sep. 15, 1981
Filed:
Jul. 27, 1979
Applicant:
Inventors:
Masaaki Katsumata, Yokohama, JP;
Michio Onoda, Yokohama, JP;
Yasuo Takagi, Yokohama, JP;
Kenji Yoneda, Fujisawa, JP;
Assignee:
Nissan Motor Company, Limited, Yokohama, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02D / ; F02P / ; G01L / ;
U.S. Cl.
CPC ...
123425 ; 123415 ; 123416 ;
Abstract
An engine spark timing controlling device using a resonant type vibration sensor having mechanical resonance characteristic near the knocking frequency of an engine. The vibration sensor is arranged on a body of an engine and the sensor output signal is processed and the spark timing is adjusted to obtain an optimum knocking condition.