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:
Jan. 20, 1981
Filed:
Jan. 18, 1979
Applicant:
Inventors:
Thomas J Milton, Essexville, MI (US);
Dennis J Jones, Saginaw, MI (US);
Assignee:
General Motors Corporation, Detroit, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01D / ;
U.S. Cl.
CPC ...
415144 ;
Abstract
An engine turbocharger includes a turbine housing having wastegate passages integral therewith and a cartridge wastegate valve including a ported stationary bushing and a ported tubular valve member rotatable in the bushing to close or open wastegate flow. The arrangement provides simplicity of manufacture and installation as well as a self-cleaning valve design that is unbiased by exhaust gas pressures and thus requires a minimum of operating force.