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:
Jul. 17, 1984
Filed:
May. 06, 1983
Applicant:
Inventor:
Thomas Brachert, Wiernsheim, DE;
Assignee:
Dr. Ing. h.c.F. Porsche AG, Stuttgart, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02M / ; F02D / ;
U.S. Cl.
CPC ...
123571 ; 123568 ;
Abstract
A control installation for the feedback of exhaust gases, in which two adjusting valves are built into the feedback line in parallel to one another; the two adjusting valves are controlled by a three-way electric shifting valve which is actuated by a pressure sensor connected to the suction line, in such a manner that at lower engine loads, only one adjusting valve is opened whereas at higher engine loads, both adjusting valves are opened.