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. 04, 1990
Filed:
May. 15, 1989
Applicant:
Inventors:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01M / ;
U.S. Cl.
CPC ...
73116 ; 250343 ;
Abstract
A method and device for delay-free measurement of the air/fuel ratio of combustion systems, especially internal combustion engines, by measuring individual components of the fuel, the ambient air used for fuel combustion, and the exhaust gas, wherein the water vapor concentrations of the exhaust gas and, preferably, the ambient air or the gas supplied for fuel combustion are measured, and wherein the air/fuel ratio are computed by the obtained values and data on fuel composition.