Control system for varying the amount of scavenging air to...

Details Control system for varying the amount of scavenging air to... Control system for varying the amount of scavenging air to...

F - Mech Eng,Light,Heat,Weapons

02

B

171/31

F02B 25/00 (2006.01) F02B 29/00 (2006.01)

Patent

CA 1078302

ABSTRACT OF THE DISCLOSURE Control system is adapted for an internal combustion engine in which a jet of air is injected into a combustion chamber via a second intake valve during a period over- lapping an exhaust cycle and the subsequent intake cycle for expelling residual gas within the combustion chamber in order to reduce residual gas fraction of charge for the subsequent combustion within the combustion chamber. The system comprises a source of compressed air having a constant pressure, an injection passageway leading from the source toward the second intake valve, a flow control valve fluidly disposed in the injection passage- way, and means whereby the flow control valve will vary effective flow area of the injection passageway in re- sponse to a signal indicative of the flow rate of fluid passing through the engine induction passageway. - 1 -

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