| 摘要 |
A bimetallic set of bellows enclosing the engine cylinder is inflated, in the interior of the annular structure formed, in the rhythm of the exhaust pulses, in order to pump the cooling liquid enclosed in the casing. At the same time, such a structure is a first-rate heat exchanger, because of the intense flow around the parts which give off heat. Likewise, the exhaust noises are considerably reduced.
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