Recirculated exhaust gas quantity control apparatus for internal combustion engine
Patent
·
OSTI ID:6319649
A recirculated exhaust gas quantity control apparatus is described for an internal combustion engine comprising: a recirculating passage which connects an exhaust gas passage and an air intake passage of the internal combustion engine and recirculates the exhaust gas of the internal combustion engine to the air intake passage; a control valve which is installed at an intermediate location of the recirculating passage and controls the recirculated quantity of the exhaust gas; at least two engine condition sensors for sensing the operating condition of the internal combustion engine; a control circuit for adjusting the opening of the control valve; an oxygen sensor; an oxygen sensor; a detector for detecting opening of the control valve; an opening control means for controlling the opening of the control valve; an abnormal-condition detecting means for judging the occurrence of an abnormal condition; and a means for generating an alarm when the abnormal-condition detecting means detects the abnormal condition.
- Assignee:
- Mitsubishi Denki Kabushiki Kaisha, Tokyo
- Patent Number(s):
- US 4794903
- OSTI ID:
- 6319649
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
33 ADVANCED PROPULSION SYSTEMS
330700* -- Advanced Propulsion Systems-- Emission Control
500200 -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
99 GENERAL AND MISCELLANEOUS
990220 -- Computers
Computerized Models
& Computer Programs-- (1987-1989)
AIR POLLUTION CONTROL
COMPUTERIZED CONTROL SYSTEMS
CONTROL
CONTROL EQUIPMENT
CONTROL SYSTEMS
DESIGN
ELECTRONIC CIRCUITS
EQUIPMENT
EXHAUST GASES
EXHAUST RECIRCULATION SYSTEMS
EXHAUST SYSTEMS
FLOW RATE
FLOW REGULATORS
FLUID FLOW
FLUIDS
GAS FLOW
GASEOUS WASTES
GASES
POLLUTION CONTROL
POLLUTION CONTROL EQUIPMENT
SWITCHING CIRCUITS
VALVES
WASTES
330700* -- Advanced Propulsion Systems-- Emission Control
500200 -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
99 GENERAL AND MISCELLANEOUS
990220 -- Computers
Computerized Models
& Computer Programs-- (1987-1989)
AIR POLLUTION CONTROL
COMPUTERIZED CONTROL SYSTEMS
CONTROL
CONTROL EQUIPMENT
CONTROL SYSTEMS
DESIGN
ELECTRONIC CIRCUITS
EQUIPMENT
EXHAUST GASES
EXHAUST RECIRCULATION SYSTEMS
EXHAUST SYSTEMS
FLOW RATE
FLOW REGULATORS
FLUID FLOW
FLUIDS
GAS FLOW
GASEOUS WASTES
GASES
POLLUTION CONTROL
POLLUTION CONTROL EQUIPMENT
SWITCHING CIRCUITS
VALVES
WASTES