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.

Date of Patent:
Apr. 13, 1976

Filed:

Oct. 11, 1972
Applicant:
Inventors:

Norbert Rittmannsberger, Stuttgart, DT;

Hermann Hoelle, Sonthofen, DT;

Klaus Bertsch, Backnang, DT;

Assignee:

Robert Bosch G.m.b.H., Stuttgart, DT;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02B / ; F02B / ;
U.S. Cl.
CPC ...
1231 / ; 1231 / ; 123 / ; 123 / ; 251 61 ;
Abstract

The air pressure in the intake valve undergoes a sudden decrease upon closure of the throttle valve. This decrease is sensed and opens a bypass which furnishes some air to the air intake means when the throttle is fully closed. The quantity of air so furnished is sufficient to allow combustion in all cylinders of the engine, thereby preventing excessive cooling.


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