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:
Mar. 31, 2009
Filed:
Feb. 13, 2006
Applicants:
Frank Dieterle, Ditzingen, DE;
Norman Woeckel, Weissach, DE;
Inventors:
Frank Dieterle, Ditzingen, DE;
Norman Woeckel, Weissach, DE;
Assignee:
Dr. Ing. H.C.F. Porsche Aktiengesellschaft, Stuttgart, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01M 13/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
A ventilation system of an internal-combustion engine crankcase, in which the blow-by gases can be removed by bores integrated in the cylinder head and ventilation pipes connected thereto. The ventilation pipes are connected to a vacuum source such as a suction pipe, and devices pre-separate oil from the blow-by gases. At least one separate oil separation module is provided, whose oil separation chambers therein have first openings for the introduction of the blow-by gases and second openings for the return of the separated oil into the cylinder head.