Induction system for internal combustion engine having multiple inlet valves

Patent · Tue Sep 23 04:00:00 EDT 1986

OSTI ID:5042143

Urabe, S; Iwasa, Y

An internal combustion engine means defining a combustion chamber; first and second induction ports leading to the combustion chamber; first and second inlet valves for controlling fluid communication between the combustion chamber and the first and second induction ports respectively; an induction manifold including a collector section and a structure which defines first and second induction conduits which lead from the collector section to the first and second induction ports respectively; first and second control valves diesposed in the first and secontd conduits respectively, the first and second flow control valves being located upstream of the first and second inlet valves; a third flow control valve upstream of the collector, the third valve controlling the amount of air which enters the collector; a device for causing the first and second flow control valves to close independently of the third flow control valve and prevent the flow of fluid from the collector section to the combustion chamber during a predetermined first mode of engine operation and for opening the valves when the engine enters a second predetermined mode of engine operation; a third induction port, the third induction port being arranged to merge with the first port at an acute angle at a location downstream of the first flow control valve.

• Assignee: Nissan Motor Co., Ltd.
• Patent Number(s): US 4612903
• OSTI ID: 5042143
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330100* -- Internal Combustion Engines
AIR FLOW
COMBUSTION CHAMBERS
CONTROL EQUIPMENT
ENGINES
EQUIPMENT
FLOW REGULATORS
FLUID FLOW
GAS FLOW
HEAT ENGINES
INCIDENCE ANGLE
INTAKE STRUCTURES
INTERNAL COMBUSTION ENGINES
LIQUID FLOW
MECHANICAL STRUCTURES
VALVES