Internal combustion engine equipped with a supercharger and an idling speed control system

Patent · Tue Jan 05 00:00:00 EST 1988

OSTI ID:5421569

Nakao, M; Iwaki, M; Kinoshita, H; Okamoto, I

An internal combustion engine equipped with a supercharger and an idling speed control system is described comprising, a combustion chamber formed in an engine body and provided with an exhaust passage elongating therefrom, an inlet passage for guiding intake air to the combustion chamber, the inlet passage being provided with the supercharger for compressing the intake air therein, a throttle valve provided at a downstream portion of the inlet passage compared with the supercharger for controlling intake air mass flow supplied to the combustion chamber, an intercooler provided at the downstream portion of the inlet passage compared with the supercharger for cooling the intake air compressed by the supercharger, a bypass passage provided to the inlet passage for detouring the throttle valve, the bypass passage having one end thereof connected with a portion of the inlet passage between the supercharger and the intercooler and the other end thereof connected with another portion of the inlet passage downstream from the intercooler, and an air flow control valve for adjusting intake air mass flow supplied through the bypass passage to the combustion chamber, start detecting means for detecting a start of the engine by detecting a cranking condition of the engine, and valve control means for controlling the air flow control valve to supply a predetermined air mass flow to the combustion chamber when the start of the engine is detected by the start detecting means.

• Assignee: Mazda Motor Corp., Aki
• Patent Number(s): US 4716734
• OSTI ID: 5421569
• Resource Relation: Patent File Date: Filed date 30 May 1986
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
INTERNAL COMBUSTION ENGINES
CONTROL SYSTEMS
DESIGN
SUPERCHARGERS
AIR FLOW
COMBUSTION CHAMBERS
COMPRESSED AIR
COMPRESSION
COOLING SYSTEMS
INTAKE STRUCTURES
METERS
VALVES
VELOCITY
AIR
COMPRESSED GASES
COMPRESSORS
CONTROL EQUIPMENT
ENERGY SYSTEMS
ENGINES
EQUIPMENT
FLOW REGULATORS
FLUID FLOW
FLUIDS
GAS FLOW
GASES
HEAT ENGINES
MEASURING INSTRUMENTS
MECHANICAL STRUCTURES
330100* - Internal Combustion Engines