Air/fuel ratio control system for internal combustion engines, having air/fuel ratio control function at engine acceleration

Patent · Tue Aug 30 00:00:00 EDT 1983

OSTI ID:5531848

Otsuka, K; Hasegawa, S; Narasaka, S

An air/fuel ratio control system is disclosed for use with an internal combustion engine, in which acceleration detecting circuit produces a signal indicative of engine acceleration when the engine RPM increases across a predetermined value which is slightly higher than an idle rpm to which the engine is adjusted, and driving pulse supply means is responsive to this acceleration signal to supply driving pulses to a pulse motor to cause it to move the valve position of an air/fuel ratio control valve to a preset position whereby improved exhaust gas emission characteristics of the engine can be obtained at the standing start of the engine and during subsequent normal operation thereof.

• Assignee: Honda Giken Kogyo Kabushiki Kaisha (Japan)
• Patent Number(s): US 4401080
• OSTI ID: 5531848
• Resource Relation: Patent Priority Date: Priority date 25 Jul 1980, Japan; Other Information: PAT-APPL-285310
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
FUEL-AIR RATIO
CONTROL SYSTEMS
INTERNAL COMBUSTION ENGINES
EXHAUST GASES
FEEDBACK
VALVES
CONTROL EQUIPMENT
ENGINES
EQUIPMENT
FLOW REGULATORS
FLUIDS
GASEOUS WASTES
GASES
HEAT ENGINES
WASTES
330100* - Internal Combustion Engines