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:
May. 04, 1993
Filed:
Feb. 18, 1992
Manfred Roessler, Manhattan Beach, CA (US);
AlliedSignal Inc., Morristown, NJ (US);
Abstract
A turbocharger includes a turbine housing with a variable geometry mechanism which controls the flow area of the throat through which motive exhaust gasses are communicated to the turbine wheel. The turbine housing is provided with an insert which defines one wall of the throat and which is cast in place as part of the turbine housing. The insert may be made of a relative expensive, high nickel content material to assure that a non-corrosive surface is provided adjacent to the vanes which are pivotally actuated to vary the area of the throat. The remainder of the housing is made of a standard ductile iron which is substantially less expensive than the more expensive corrosive resistant high nickel content material from which the insert is manufactured.