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. 24, 2004
Filed:
Sep. 13, 2002
Joshua D. Schueler, New Lenox, IL (US);
Gary R. Svihla, Chicago, IL (US);
General Motors Corporation, Detroit, MI (US);
Abstract
A multi-orifice crankcase air evacuator assembly for a diesel engine which provides improved efficiency and effectiveness of crankcase air removal into the exhaust port of the engine. A multi-orifice nozzle preferably has five nozzle orifices arranged in an “X” pattern. The evacuation tube has a tube body defining a central passage and a bell-mouth concentrically disposed at its inlet. The central passage includes an air mixer and an air diffuser. Operatively, compressed air pressurably effuses from the nozzle orifices into the central passage, whereupon a low pressure region is established surrounding the bell-mouth which causes crankcase air to be sucked into the evacuator tube and thereupon be expelled to an exhaust port.