Oxygen sensor and an air-fuel ratio control apparatus of an internal combustion engine using the same

Patent · Tue May 30 04:00:00 EDT 1989

OSTI ID:5617625

Tanaka, M; Yamauchi, S; Mikita, M

This patent describes a air-fuel ratio control apparatus having an oxygen sensor, disposed in an exhaust passage of an internal combustion engine and adapted to detect the concentration of oxygen in exhaust gas and deliver a detection signal, and fuel supply means for supplying fuel to the engine, whereby a control signal used to vary the amount of fuel supply to the engine is delivered to the fuel supply means in accordance with the detection signal form the oxygen sensor, comprising: a carrier disposed in the exhaust passage on the uppercourse side of the oxygen sensor, with respect to the flowing direction of the exhaust gas, and carrying a substance adapted to adsorb or desorb the oxygen in the exhaust gas in accordance with the partial pressure of the oxygen, whereby the exhaust gas to be detected by means of the oxygen sensor reaches the oxygen sensor through the carrier.

• Assignee: Mitsubishi Jidosha Kogyo Kabushiki Kaisha, Tokyo
• Patent Number(s): US 4834051
• OSTI ID: 5617625
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330100* -- Internal Combustion Engines
99 GENERAL AND MISCELLANEOUS
990220 -- Computers
Computerized Models
& Computer Programs-- (1987-1989)
COMPUTERIZED CONTROL SYSTEMS
CONTROL SYSTEMS
DETECTION
ELEMENTS
ENGINES
EXHAUST GASES
FLUIDS
FUEL SYSTEMS
FUEL-AIR RATIO
GASEOUS WASTES
GASES
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
MEASURING INSTRUMENTS
METERS
NONMETALS
OXYGEN
WASTES