F - Mech Eng,Light,Heat,Weapons – 02 – B
Patent
F - Mech Eng,Light,Heat,Weapons
02
B
60/8
F02B 37/00 (2006.01) F01D 9/02 (2006.01) F01D 17/10 (2006.01) F02B 37/18 (2006.01)
Patent
CA 1201599
METHOD AND APPARATUS FOR WASTEGATING TURBOCHARGED ENGINE WITH DIVIDED EXHAUST SYSTEM ABSTRACT A turbocharged engine is provided with a turbine housing which has an inlet, an outlet located radially interiorally from the inlet, a centrally located turbine wheel cavity, and an internal scroll passageway which diminishes in cross section as it leads from the inlet around the turbine wheel cavity. The scroll passageway means is bifurcated from the inlet through an arc of between 180° and 300° to divide the incoming exhaust gas from different sets of cylinders of an internal combustion engine into identical, but separate, flow paths to minimize feedback of pulsations of exhaust gases from one set of cylinders to the other. The separate, flow paths within the turbine housing are combined into a single flow pathway near the end of the scroll passageway, and a single wastegate valve is in communication with the single flow pathway. A portion of the exhaust gases is selectively diverted from the single flow pathway to the single wastegate valve to maintain maximum speed of operation of the turbine wheel.
431159
Fetherstonhaugh & Co.
Roto-Master Inc.
LandOfFree
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