Inlet system for internal combustion engine

Patent · Tue Feb 17 04:00:00 EST 1987

OSTI ID:7083755

Ura, S; Iwasa, Y

An inlet system is described for an internal combustion engine having a plurality of combustion chambers, comprising: means defining a throttle chamber; a throttle valve mounted within the throttle chamber; a surge tank communicating with and disposed downstream of the throttle chamber; a plurality of main inlet passageways, each having a first end opening to the surge tank and an opposite second end communicable with one of the combustion chambers and each having a first flow cross sectional area; a plurality, corresponding in number to the number of the main inlet passageways, of auxiliary inlet passageways, each having a first end opening directly into and in constant communication with the surge tank and an opposite second end communicable with one of the combustion chambers, each of the auxiliary inlet passageways having a second flow cross sectional area smaller than the first flow cross sectional area; each of the auxiliary inlet passageways having the opposite second end opening to a respective one of the main inlet passageways at an acute angle; control valve means for closing each of the main inlet passageways; and means for supplying fuel to each of the main inlet passageways at a portion between the control valve means and the opposite second end of each of main inlet passageways.

• Assignee: Nissan Motor Co., Ltd., Yokohama
• Patent Number(s): US 4643136
• OSTI ID: 7083755
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330100* -- Internal Combustion Engines
COMBUSTION CHAMBERS
CONTAINERS
CONTROL EQUIPMENT
ENGINES
EQUIPMENT
FLOW REGULATORS
FUEL SYSTEMS
HEAT ENGINES
INCIDENCE ANGLE
INTAKE STRUCTURES
INTERNAL COMBUSTION ENGINES
MECHANICAL STRUCTURES
TANKS
VALVES