HEAT TUBING PUMP Russian patent published in 2009 - IPC F04B19/24 

FIELD: engineering industry.

SUBSTANCE: invention refers to engineering industry, and can be used for utilising waste heat energy supply and low-grade heat energy of natural sources, and namely for transporting liquids. Heat tubing pump consists of a vertical housing with inlet and outlet valves. In the housing with working and pump chambers there installed is a bellow with a lower movable wall, and evaporator and condenser with the walls made of wicks, which are located in rotochamber and partially filled with highly boiling liquid, steam-proof partition and condensate storage reservoir. Working chamber is made in the form of a vertical heat tube, and wick of evaporation and condensation sections is covered with a sleeve installed with a clearance relative to upper and lower end walls of heat tube body. Partition is equipped with a central inlet hole, and a stock with a valve is attached to the centre of end wall inside condensation chamber. Some part of external housing surface forming the condensation chamber is covered with bellow from outside, and cavity between bellow and housing comprises the cooling chamber that is interconnected with steam space of condensation chamber through connections. Pump chamber is located in the cavity between bellow and vertical housing provided with conical bottom, along inner perimeter of which there arranged is a ring-shaped shoulder serving as a valve seat. At conical bottom there made is suction hole wherein there placed is a suction valve and a stop.

EFFECT: improving operating reliability and efficiency of pump with heat drive.

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