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:
Jan. 04, 1977
Filed:
Jan. 23, 1976
Applicant:
Inventors:
Jorg Abthoff, Pluderhausen, DT;
Dag-Harald Huttebraucker, Endersbach, DT;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01N / ; F02B / ;
U.S. Cl.
CPC ...
60276 ; 60285 ; 1231 / ; 1231 / ;
Abstract
A mixture-compressing reciprocating-piston internal combustion engine with two separate cylinder rows and a single mixture-producing device, in which one row is supplied with a slightly richer air/fuel mixture from a common mixture-producing device which is then leaned down by the admixture of additional air while the other cylinder row is supplied with an air/fuel mixture which is as accurately as possible stoichiometric; oxygen probes are thereby used upstream of the respective catalysts to control a valve controlling the additional air inlet to the one cylinder row and the fuel supply to the mixture-producing device.