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:
May. 05, 1987
Filed:
Apr. 22, 1986
Applicant:
Inventors:
Assignee:
BBC Brown, Boveri & Company, Limited, Baden, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02B / ;
U.S. Cl.
CPC ...
123559 ; 417 64 ;
Abstract
In the high pressure exhaust gas duct of a pressure wave supercharger, a rotary valve is supported in the region where the gas pocket supply branches off from the high pressure exhaust gas duct, the angular position of the rotary valve being controlled either in steps or steplessly by one or more parameters typical of the pressure wave process and, if necessary, of the engine working process or the engine operating condition. Depending on the operating condition, the rotary valve closes the high pressure exhaust gas duct and the gas pocket supply duct completely or partially. Control is preferably carried out by a step motor with characteristics control by an in-process computer.