Cryogenic liquid reciprocating pump with a cylinder structure for cooling assistance

Abstract

A reciprocating pump for pressurizing a cryogenic liquid includes a pump housing, a suction chamber, a discharge chamber and a piston rod and a piston. The pump housing has a suction part into which a target liquid flows. The suction chamber is disposed in the pump housing, has an inner space divided into an upper space and a lower space, and is configured to inhale the target liquid then to pressurize the inhaled target liquid primarily. The discharge chamber is disposed under the suction chamber, has an inner space formed to be connected with the upper space of the suction chamber, and is configured to receive the pressurized target liquid in the suction chamber, to pressurized the received target liquid secondarily and then to discharge the pressurized target liquid. The piston rod and the piston are configured to the target liquid in the suction chamber and the discharge chamber.

Dependencies are inferred from the claim text.