Turbine inlet scroll

Details Turbine inlet scroll Turbine inlet scroll

F - Mech Eng,Light,Heat,Weapons

01

D

F01D 9/06 (2006.01) F01D 9/02 (2006.01) F01D 9/04 (2006.01) F02C 7/04 (2006.01)

Patent

CA 2352041

An engine turbocharger includes a turbine inlet scroll for conducting exhaust gas from a laterally offset position to the annular inlet of a turbine wheel. An outer wall defines a generally S-shaped passage connecting an inlet flange with concentric annular outlet flanges aligned on laterally spaced parallel axes. An inner wall positioned near the outlet end of the turbine inlet duct defines an annular passage portion for distribution of exhaust gas to the turbine inlet. Three annularly spaced struts or vanes support the inner wall within the outer wall slightly upstream from the outlet flanges of the scroll. A straight vane is positioned on the central plane of the turbine inlet scroll to support the wall with the least possible interference with gas flow. Second and third vanes are positioned approximately 110 degrees clockwise and counter-clockwise respectively from the first vane and are formed as aerodynamically curved vanes which assist in redirecting the gas flow in an axial direction toward the annular outlet of the scroll to provide relatively even distribution of gas to the turbine inlet.

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