Internal combustion engine with combined pressure charging

Details Internal combustion engine with combined pressure charging Internal combustion engine with combined pressure charging

1993-03-19

1994-08-09

Bertsch, Richard A.

Power plants

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

With supercharging means for engine

123561, F02B 3344

Patent

active

053355008

ABSTRACT:
An internal combustion engine with combined pressure charging has an exhaust turbocharger turbine arranged in an exhaust conduit of the internal combustion engine driving a compressor arranged in an intake conduit. A mechanically driven supercharger is arranged downstream of the compressor and is coupled continuously variably to the engine via a Fottinger speed transformer with variable-pitch guide vanes and variable speed slip. To bypass the mechanically driven supercharger, a bypass conduit is provided. A circulating-air slide is arranged in the bypass conduit for controlling the air quantity bypassing the mechanically driven supercharger. The degree of opening of the circulating-air slide and the slip of the Fottinger speed transformer are controlled as a function of operating parameters such that the charge-air pressure is adjusted to a predetermined set point value.

REFERENCES:
patent: 3270730 (1964-11-01), Timoney
patent: 3712280 (1973-01-01), Brille et al.
patent: 4730457 (1988-03-01), Yamada et al.
patent: 4903488 (1990-02-01), Shibata
patent: 5056314 (1991-10-01), Paul et al.

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