Two-stroke engine with controlled pneumatic injection

Details Two-stroke engine with controlled pneumatic injection Two-stroke engine with controlled pneumatic injection

1990-12-31

1992-04-21

Cross, E. Rollins

Internal-combustion engines

Two-cycle

Pump and cylinder adjacent

123 73V, 123 73PP, F01L 102, F02B 7700, F02B 3304, F02B 7502

Patent

active

051057751

ABSTRACT:
A two-stroke engine with controlled pneumatic injection is disclosed, wherein at least one connecting duct joins the combustion chamber of a first cylinder to the crankcase-pump of a second cylinder. The means for controlling the injection of carburetted air into the chamber of the first cylinder comprise at least one flange fixed rigidly to the shaft of the crankcase of the engine inside the crankcase-pump of the second cylinder. The flange comprises a recess on its peripheral portion so as to be able to isolate the crankcase-pump from or place it in communication with the inner volume of the combustion chamber at given times of the engine cycle.

REFERENCES:
patent: 4362132 (1982-12-01), Neuman
patent: 4781155 (1988-11-01), Brucker
patent: 4813387 (1989-03-01), Prevedel et al.
patent: 4917073 (1990-04-01), Duret
patent: 4944255 (1990-07-01), Duret
patent: 5033418 (1991-07-01), Maissant et al.

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