The cryogenic pump is a displacement pump, it is the reciprocating motion of the piston in the cylinder, so that the working volume of pump cylinder is expanded and shrunk periodically to absorb the liquid.
The reciprocating pump is usually composed of two basic parts, one end is the realization of mechanical energy conversion into pressure energy, and directly conveying the liquid part, called the cold end; The other end is the power and drive part, called the power end.
The Cold end of reciprocating pump consists of piston cylinder body , suction valve and discharge valve. The transmission end is mainly composed of crank, connecting rod and cross. Cryogenic pump is a typical volumetric pump, reciprocating motion of piston is realized by crank connecting rod mechanism.
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