Supercharge pressure control apparatus of a supercharged engine

Patent · Tue Jan 20 04:00:00 EST 1987

OSTI ID:6885462

Yamamoto, W

A supercharge pressure control apparatus is described for a supercharged engine, comprising: a supercharge turbine associated with an exhaust passage of the engine; a supercharge compressor associated with an intake passage of the engine for compressing a gas which is supplied through the intake passage to the engine, the compressor being driven by the turbine; bypass means associated with the exhaust passage for selectively permitting some of the exhaust gasses discharged from the engine and flowing through the exhaust passage to bypass the turbine, the bypass means including a bypass passage communicating with the exhaust passage for bypassing the turbine, and a bypass valve for controlling the opening and closing of the bypass passage; actuator means for controlling the opening and closing of the bypass valve, the actuator means including means associated therewith for normally maintaining the bypass valve in a closed position. The actuator means also includes pressure responsive means for responding to the pressure of the gas in the intake passage for effecting selective opening of the bypass valve; first means for sensing the pressure of the gas in the intake passage at a first location disposed a substantial distance downstream of the compressor for activating the actuator means to effect opening of the bypass valve when the pressure in the intake passage at the first location exceeds a preset level; and second means for sensing the pressure of the gas in the intake passage at a second location which is upstream a substantial distance from the first location but is disposed downstream of but closely adjacent to the compressor.

• Assignee: Suzuki Jidosha Kogyo Kabushiki Kaisha, Shizuoka
• Patent Number(s): US 4637210
• OSTI ID: 6885462
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330100* -- Internal Combustion Engines
ACTUATORS
COMPRESSORS
CONTROL
CONTROL EQUIPMENT
ELECTRICAL EQUIPMENT
ENGINES
EQUIPMENT
EXHAUST GASES
EXHAUST SYSTEMS
FLOW REGULATORS
FLUIDS
GASEOUS WASTES
GASES
HEAT ENGINES
INTAKE STRUCTURES
INTERNAL COMBUSTION ENGINES
MACHINERY
MECHANICAL STRUCTURES
PRESSURE CONTROL
PRESSURE REGULATORS
SUPERCHARGERS
SWITCHES
TURBINES
TURBOMACHINERY
VALVES
WASTES