CRYOGENIC PUMP

摘要

A cryogenic pump (2) is typically used to supply high pressure natural gas to an engine. The pump (2) has a piston (6) operable to discharge cryogenic liquid from a pumping chamber (8) within a pump housing (4). The cryogenic liquid exits the chamber (8) through an outlet port (10) in which a check valve (2) is positioned. The check valve (12) has a valve member (14) which is loaded by a spring (28) and is retained by a retaining member (16) accessible from outside the housing (4). The check valve (12) has an inlet (18) which is axial with the valve member (14) and an outlet (20) which is transverse to the axis of the valve member (14).