Internal combustion engines

Details Internal combustion engines Internal combustion engines

1987-08-11

1990-05-01

Hart, Douglas

Power plants

Internal combustion engine with treatment or handling of...

Methods

60310, 60314, F02B 2702

Patent

active

049207458

ABSTRACT:
A two stroke internal combustion engine (5) having a transfer port (9) and an exhaust port (8) in a cylinder (6) which are opened and closed in a timed relationship by the reciprocating movement of a piston (7). The exhaust port (8) communicates with an exhaust passage that is tuned to provide a pressure pattern in the exhaust passage that will create at the exhaust port (8) a predetermined pressure pattern while the exhaust port (8) is open. Coolant is supplied to the exhaust passage when the engine is subject to increasing transient load conditions, at engine speeds below the tuned speed, and at a controlled rate to establish a tuned state in the exhaust passage during the transient condition.

REFERENCES:
patent: 3385052 (1968-05-01), Holtermann
patent: 3726092 (1973-04-01), Raczuk

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