Variable geometry turbocharger with high temperature insert in t

Details Variable geometry turbocharger with high temperature insert in t Variable geometry turbocharger with high temperature insert in t

1992-02-18

1993-05-04

Bertsch, Richard A.

Pumps

Motor driven

Fluid motor

415202, F04B 1700

Patent

active

052075656

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.

REFERENCES:
patent: 3033519 (1962-05-01), Radtke
patent: 4097188 (1978-06-01), Forster
patent: 4147467 (1979-04-01), Leicht et al.
patent: 4300869 (1981-11-01), Swearingen
patent: 4521155 (1985-06-01), Osburn
patent: 4659295 (1987-04-01), Burdette et al.
patent: 4676717 (1987-06-01), Willyard, Jr. et al.

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