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Solar radiation powered pump - has piston reciprocated by bimetallic element alternately radiation heated and pumped liquid cooled
Solar radiation powered pump - has piston reciprocated by bimetallic element alternately radiation heated and pumped liquid cooled
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机译:太阳辐射动力泵-活塞由双金属元件往复运动,交替加热和泵送液体冷却辐射
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摘要
The pump for liquids comprises a pump unit (1) e.g. a displacement piston (3) in a cylinder (2). The unit is driven e.g. by an expandable element (22), whose geometry chan ges under the influence of an external heat source, preferably solar radiation. When the element reaches its maximum expansion, it is cooled by the liq. that has been displaced by the pump. The element may be a bi-metallic element, one side of which is connected with the piston or piston rod(4). Its other end bears without friction (26) on a fixed support (17).
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