Engine-control apparatus

Power plants – Internal combustion engine with treatment or handling of... – Pulsed – timed – tuned or resonating exhaust

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Details

60602, 74860, 123357, 123564, 181232, 181236, 181254, 192 007, 192 0073, 192 0096, F02B 2702, F02B 7510

Patent

active

049266365

ABSTRACT:
Disclosed is an engine-control apparatus in which an exhaust passageway of the engine is provided with plural sound deadening passages. A portion of the plural sound deadening passages is designed to be opened or closed by a shift valve on the basis of a predetermined switching characteristic, and the pressure of the exhaust gases is changed upon the switching of the shift valve. In order to prevent torque shock to the driven wheels which may occur attendant upon operation of the shift valve to open or close or in order to reduce probability that torque shock would occur, there is provided a torque regulating apparatus which permits an adjustment of torque generator by the engine, of a transmission efficiency of power to the driven wheel, or of a switching speed at which the shift valve is switched to open or close, or a change in the switching characteristic.

REFERENCES:
patent: 4461257 (1984-07-01), Hosaka
patent: 4467673 (1984-08-01), Hamada
patent: 4665692 (1987-05-01), Inaba
Abstract of Japanese Patent Publication No. 74325/1984.

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