Supercharged internal combustion engine

Details Supercharged internal combustion engine Supercharged internal combustion engine

1996-12-18

1999-05-04

Koczo, Michael

Power plants

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

With supercharging means for engine

F02B 3718

Patent

active

058990690

ABSTRACT:
According to the present invention, a wastegate value is provided at the exhaust gas inlet of a supercharger of the internal combustion engine and the degree of opening of the wastegate valve is controlled by a control unit in accordance with the engine speed. The control unit stores the regions where the engine output increases sharply along with an increase of the engine speed (bootstrap operating region) as ranges of the engine speed, and sets the degree of opening of the wastegate valve in accordance with the speed in the bootstrap operating region, and thereby ensures that the supercharging pressure will rise gradually along with an increase of the engine speed. Due to this, sharp increases in the engine output in the bootstrap operating region are prevented and therefore no bootstrap occurs.

REFERENCES:
patent: 4556038 (1985-12-01), Okamoto et al.
Nippon Koukuugijutsu Kyokai, 1-8-12, Shinbashi, Minato-ku, Tokyo, Japan.

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