Internal combustion engine with pressure-wave supercharger and l

Details Internal combustion engine with pressure-wave supercharger and l Internal combustion engine with pressure-wave supercharger and l

1987-07-02

1989-01-17

Hart, Douglas

Power plants

Internal combustion engine with treatment or handling of...

Having means analyzing composition of exhaust gas

60285, 1235592, F01N 302

Patent

active

047980494

ABSTRACT:
In an internal combustion engine supercharged by a pressure-wave supercharger (2), a lambda probe (7) is used for measurement of the oxygen content in the circuit. The oxygen content determined by the lambda probe (7) creates a measuring signal (9), which is used for controlling the throttle valve (4) and/or the starting valve (6). This control is aimed at reducing the NO.sub.x emissions from the combustion and possibly ensuring the regeneration of an exhaust gas particle filter (3) integrated in the circuit. In this arrangement, the lambda probe (7) is to be placed in the low-pressure exhaust gas line (444), which has a positive effect on the response capability and the accuracy of the measured data of the probe (7). This obviates the need for additional aids for the correction of pressure fluctuations such as occur at other points in the circuit of the internal combustion engine.

REFERENCES:
patent: 4553387 (1985-11-01), Mayer
patent: 4615172 (1986-10-01), Mayer
patent: 4702075 (1987-10-01), Jenny

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