Method and device for ensuring the safety in a free piston machi

Details Method and device for ensuring the safety in a free piston machi Method and device for ensuring the safety in a free piston machi

1977-10-27

1979-03-06

Burns, Wendell E.

Internal-combustion engines

Free piston

Single chamber; one piston

123 46SC, 60DIG1, 417364, F02B 7100

Patent

active

041424859

ABSTRACT:
The invention relates to the safety against shocks in a free piston machine.
The engine section of a unit operating according to the Diesel cycle and air-cooled runs the risk of supplying an important amount of energy to the piston, so that the latter might knock against the cover of the bounce cylinder or chamber. The constructional elements (stroke and diameters) of the machine are calculated in a manner such that their ratios cause, as a result of expansion, the ignition to stop before the dead point on the bounce section side (curve 12) knocks against the cylinder.
Application: compressor with 2-stroke Diesel engine, having a one-piece movable member, and air-cooled.

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