Power plants – Fluid motor means driven by waste heat or by exhaust energy... – With supercharging means for engine
Patent
1984-10-10
1987-10-06
Koczo, Michael
Power plants
Fluid motor means driven by waste heat or by exhaust energy...
With supercharging means for engine
F02B 3712
Patent
active
046974210
ABSTRACT:
A supercharging pressure control system for an internal combustion engine with a turbocharger, for controlling supercharging pressure in dependence on operating conditions of the engine, includes a waste gate valve disposed to selectively close and open a bypass exhaust passage, an actuator for actuating the waste gate valve, a control valve for communicating the actuator with the atmosphere to substantially vary the valve opening pressure of the waste gate valve, a throttle valve opening sensor, a pressure sensor for detecting intake passage pressure downstream of the throttle valve, and an electronic control unit for controlling through feedback the intake passage pressure to reach a target value by actuating the control valve in dependence on the difference between the target value and the detected pressure value. The feedback control is carried out when the throttle valve opening exceeds a predetermined value.
REFERENCES:
patent: 4136286 (1979-01-01), O'Halloran
patent: 4223654 (1980-09-01), Wessel et al.
patent: 4467607 (1984-08-01), Rydquist et al.
Niikura Masakatsu
Otobe Yutaka
Wazaki Yoshio
Honda Giken Kogyo Kabushiki Kaisha
Koczo Michael
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