Control system for a variable inlet area turbocharger turbine

Details Control system for a variable inlet area turbocharger turbine Control system for a variable inlet area turbocharger turbine

1986-06-19

1988-08-16

Koczo, Michael

Power plants

Fluid motor means driven by waste heat or by exhaust energy...

With supercharging means for engine

F02B 3712

Patent

active

047634740

ABSTRACT:
A pneumatic control system for the variable area turbine inlet of a turbocharger of an internal combustion engine. The variable turbine inlet is actuated by a pneumatic actuator having a first connection to compressor boost pressure and a second connection to turbine inlet pressure. The actuator increases turbine inlet area in response to an increase in pressure and a one way valve in the compressor boost connection causes the actuator pressure to be the higher of compressor boost or turbine inlet pressure. As a result, turbine pumping losses during high engine rpm low power conditions are minimized.

REFERENCES:
patent: 2373139 (1945-04-01), Morris
patent: 2480621 (1949-08-01), Warner
patent: 4211081 (1980-07-01), Yamada
patent: 4270356 (1981-06-01), Will et al.
patent: 4336688 (1982-06-01), Dellis
patent: 4499732 (1985-02-01), Szczupak et al.

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