| 摘要 |
The invention relates to five engines with toric pistons, self-propelled or otherwise, associated or otherwise with compressors with straight pistons. Four of these engines with toric pistons are self-propelled, the fifth is not, the sixth propeller is a compressor propeller. The engine shown is an engine with toric pistons combined with a compressor with straight piston, in this engine the action forces are propulsive, the reaction forces cancel each other out and do not prevent self-propulsion. <IMAGE>
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