Control system for varying the amount of scavenging air to be _a

Details Control system for varying the amount of scavenging air to be _a Control system for varying the amount of scavenging air to be _a

1978-01-06

1980-01-29

Myhre, Charles J.

Internal-combustion engines

Two-cycle

Rear compression

123119D, 123119EC, F02D 3902, F02B 3300

Patent

active

041855990

ABSTRACT:
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 overlapping 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 passageway, and means whereby the flow control valve will vary effective flow area of the injection passageway in response to a signal indicative of the flow rate of fluid passing through the engine induction passageway.

REFERENCES:
patent: 2818931 (1958-01-01), Mallory
patent: 4077207 (1978-03-01), Hattori et al.
patent: 4077363 (1978-03-01), Noguchi et al.
patent: 4083341 (1978-04-01), Brettschneider et al.

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