Multi-cylinder internal combustion engine with two exhaust gas t

Details Multi-cylinder internal combustion engine with two exhaust gas t Multi-cylinder internal combustion engine with two exhaust gas t

1987-07-13

1988-11-01

Koczo, Michael

Power plants

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

With supercharging means for engine

60612, F02B 3712

Patent

active

047810270

ABSTRACT:
A multi-cylinder internal combustion engine with two exhaust gas turbochargers of which one is adapted to be switched-in during the operation of the internal combustion engine by way of a switch-in valve controllable on the turbine side and by way of a check valve on the compressor side. Furthermore, a controllable blow-off valve (waste gate) is installed into a by-pass line which by-passes both turbines. The blow-off valve and the switch-in valve are controllable by a control apparatus as a function of condition magnitude of the internal combustion engine. The activation of the blow-off valve and of the switch-in valve is subjected to an anticipatory control dependent on condition magnitudes on which at least one charging-pressure-dependent regulation is superimposed. The regulation has advantageously a PID-like structure whereby the regulating parameters are condition-dependent. The regulation and control are additionally subjected to static as well as dynamic limitations. A noticeable improvement of the power output, respectively, torque behavior of the internal combustion engine results from the deliberate control and regulation of the charging system.

REFERENCES:
patent: 4422296 (1983-12-01), Dinger et al.
patent: 4686830 (1987-08-01), Buck et al.
patent: 4697421 (1987-10-01), Otobe et al.
patent: 4709552 (1987-12-01), Rutschmann et al.

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