Supercharging pressure control device for an exhaust gas turbocharger
An internal combustion engine is described comprising: an exhaust gas turbocharger means, comprising a compressor means and an exhaust gas turbine means for rotating the compressor means, for supercharging intake air to the internal combustion engine; a fuel supply means having an injection valve means for injecting fuel; a bypass channel means for permitting exhaust gas to bypass the exhaust gas turbine; a supercharging pressure control device means for controlling a supercharging pressure downstream of the compressor means in conformance with an engine comprising: a bypass control valve means for increasing the flow of exhaust gas to pass through the bypass channel means when the supercharging pressure downstream of the compressor means exceeds a first set value; a velocity control device means for controlling the exhaust gas flow comprising a throttle valve means for decreasing a velocity of the exhaust gas flowing through the exhaust gas turbine when the supercharging pressure downstream of the compressor means exceeds a second set value less than the first set value; a pressure sensor means for detecting the supercharging pressure downstream from the compressor means; and a controller comprising a fuel cutoff control means for de-activating the fuel supply means when the pressure sensor means detects a rise in supercharging pressure above a third set value greater than the first set value. The control means is also for re-activating the fuel supply means when the pressure sensor means detects a reduction in the supercharging pressure below a fourth set value less than the first set value.
- Assignee:
- Nissan Motor Co., Ltd., Yokohama
- Patent Number(s):
- US 4633670
- OSTI ID:
- 7123731
- Country of Publication:
- United States
- Language:
- English
Similar Records
Supercharge pressure control apparatus of a supercharged engine
Exhaust gas turbine type supercharger
Related Subjects
330100* -- Internal Combustion Engines
AIR FLOW
COMPRESSORS
CONTROL
CONTROL EQUIPMENT
ENGINES
EQUIPMENT
EXHAUST GASES
FLOW REGULATORS
FLUID FLOW
FLUIDS
FUEL INJECTION SYSTEMS
FUEL SYSTEMS
GAS FLOW
GAS TURBINES
GASEOUS WASTES
GASES
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
MACHINERY
MEASURING INSTRUMENTS
PRESSURE CONTROL
PRESSURE GAGES
SPEED REGULATORS
SUPERCHARGERS
TURBINES
TURBOCHARGERS
TURBOMACHINERY
VALVES
WASTES