Internal-combustion engines – Charge forming device – Supercharger
Patent
1981-12-11
1984-01-31
Koczo, Michael
Internal-combustion engines
Charge forming device
Supercharger
123564, 123568, F02B 3300, F02M 2506
Patent
active
044283520
ABSTRACT:
A process for operating an internal-combustion engine with a supercharger which can be cut out, and a device for carrying out the process are disclosed. The engine has, aside from the supercharger or compressor which can be cut in or out as desired, an exhaust-gas return arrangement. No exhaust gas can be conveyed back into the intake line when the compressor is cut in and therefore when there is a pressure rise at the cylinder inlet to above atmospheric pressure and above the pressure prevailing in an exhaust-gas line. The return of exhaust gas into the intake line is prevented in such a way that an exhaust-gas return line opens, opposite a supercharger delivery line from the supercharger, into an intake line to the engine. A shut-off member is arranged at this junction so that during suction operation of the engine the shut-off member closes the supercharger delivery line and during supercharging operation the shut-off member closes the intake line, above the supercharger delivery line, and the exhaust-gas return line.
REFERENCES:
patent: 3868822 (1975-03-01), Keller
patent: 3925989 (1975-12-01), Pustelnik
patent: 4350013 (1982-09-01), Yoshiba
Mayer Andreas
Schwarz Martin
BBC Brown Boveri & Co. Ltd.
Koczo Michael
Neils Peggy A.
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