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. 05, 1978
Filed:
Jun. 16, 1977
Applicant:
Inventors:
Robert W Arnston, Schaumburg, IL (US);
Gerald C Trussell, Park Ridge, IL (US);
Leo G Rich, Rochester, MI (US);
Assignee:
Sun Electric Corporation, Chicago, IL (US);
Primary Examiner:
Int. Cl.
CPC ...
G01M / ;
U.S. Cl.
CPC ...
731173 ; 364431 ;
Abstract
An apparatus for diagnosing the operating state or condition of various components of an automotive engine is disclosed herein. The apparatus generates diagnostic signals representing the relationship between engine operating parameters and engine specifications. The diagnostic signals are selectively processed according to a test matrix to determine the operating state of each engine component. A diagnostic message then identifies which, if any, of the components requires repair or replacement.