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:
Feb. 19, 1991
Filed:
Sep. 13, 1989
Erich Absenger, Passau, DE;
Motorenfabrik Hatz GmbH & Co. KG, Ruhstorf, DE;
Abstract
An internal combustion engine has a casing which includes interconnected elements and is connected to an engine housing with interposed vibration-damping means. The engine also has a cooling air blower driven by an engine crankshaft which draws in cooling air through an inlet opening in said casing and conveys such cooling air through an interior space between the engine housing and the casing. Exhaust air from such interior space exits through an outlet opening in said casing, the inlet and outlet openings being disposed in a single element of the casing which element is a closed unit at a side of the engine remote from the blower and is equipped with at least one sound-damping layer. The sound-damping layer has casing element passages formed therein which are separate from one another and which communicate said interior space respectively with the inlet and outlet openings.