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:
Oct. 12, 1982
Filed:
Dec. 31, 1980
Applicant:
Inventor:
Roger D Sweetland, Columbus, IN (US);
Assignee:
Cummins Engine Company, Inc., Columbus, IN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01M / ;
U.S. Cl.
CPC ...
123 4186 ; 1231 / ;
Abstract
A ventilating system is provided for the crankcase of an internal combustion engine. The system includes an engine block provided with a crankcase and an upright housing, the latter having a lower section communicating with the crankcase and an upper section provided with a vent to the exterior of the engine. A crankshaft is mounted within the crankcase and is drivingly connected to a pressure-generating means disposed within the housing upper section and adjacent the vent. The driven presssure-generating means effects a predetermined pressure within the housing which is greater than the exterior pressure of the engine.