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:
Apr. 13, 1982
Filed:
May. 21, 1980
Applicant:
Inventors:
Hermann Danckert, Wolfsburg, DE;
Helmut Leptien, Wolfsburg, DE;
Assignee:
Volkswagenwerk Aktiengesellschaft, Wolfsburg, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02B / ;
U.S. Cl.
CPC ...
1231 / ; 1231 / ; 1231 / ; 123 / ; 123 417 ; 181204 ;
Abstract
An internal combustion engine surrounded, at least in part, by a sound insulating casing. The casing is closed to the atmosphere with the exception of an inlet opening for receiving air for combustion in the engine. An air filter is coupled to the inlet opening for filtering the air passing through this opening into the interior of the casing.