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. 29, 1981
Filed:
Aug. 03, 1979
Applicant:
Inventors:
Giampaolo Garcea, Milan, IT;
Edoardo Rogora, Milan, IT;
Assignee:
Alfa Romeo S.p.A., Milan, IT;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02B / ; G08B / ;
U.S. Cl.
CPC ...
340 53 ; 60277 ; 1231 / ; 340 57 ; 340579 ; 340588 ;
Abstract
A device is disclosed which detects the knocking phenomena in a controlled-ignition internal combustion engine, the device essentially comprising two ionization probes arranged in a zone of the explosion chamber remote from the sparking plug: the probes deliver signals when the state of ionization changes and the time interval between the signals of the two probes is measured and compared with an appropriate reference value.