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:
Nov. 17, 1987
Filed:
Feb. 01, 1985
Applicant:
Inventors:
Michael W Hmelovsky, Windsor, CT (US);
Rinaldo R Tedeschi, Newington, CT (US);
Assignee:
United Technologies Corporation, Hartford, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02P / ;
U.S. Cl.
CPC ...
36443104 ; 364569 ; 123416 ; 123414 ;
Abstract
Engine timing measurement apparatus receives the engine gear tooth signal, sensed combustion, and a crankshaft index (CI) of top dead center (TDC). The apparatus includes a whole tooth interval counter for providing a whole number count of each complete tooth interval, and partial tooth counters for counting incomplete tooth intervals as the ratio of clock pulses counted in a present incomplete tooth interval divided by clock pulses counted in a preceding complete tooth interval, the partial count added to the whole count to provide a decimal value indicative of engine timing.