Abstract: A system may include a rising main discharge pipe assembly, the rising main discharge pipe assembly having a first end configured to couple to a fluid outlet of a cryogenic pump located at or near a bottom of a pump column. The rising main discharge pipe assembly may include a second end configured to couple to a fluid outlet of the pump column located at or near a top of the pump column. The rising main discharge pipe assembly may include a fluid channel for directing fluid from the fluid outlet of the cryogenic pump to the fluid outlet of the pump column. A modular pipe segment for a rising main discharge pipe assembly may include a pressure actuated support piston assembly.

Abstract: A cryogenic pump may include a housing and a drive shaft positioned in the housing. The cryogenic pump may include at least one pump stage positioned in the housing, the at least one pump stage comprising an impeller coupled to the drive shaft. The cryogenic pump may include a balance drum coupled to the drive shaft and positioned in the housing. The cryogenic pump may additionally include a motor comprising a rotor slidably coupled to the drive shaft, the drive shaft configured to rotate with the rotor and move in an axial direction relative to the rotor and the housing during operation of the cryogenic pump.

Abstract: A cryogenic pump may include a housing and a drive shaft positioned in the housing. The cryogenic pump may include at least one pump stage positioned in the housing, the at least one pump stage comprising an impeller coupled to the drive shaft. The cryogenic pump may include a balance drum coupled to the drive shaft and positioned in the housing. The cryogenic pump may additionally include a motor comprising a rotor slidably coupled to the drive shaft, the drive shaft configured to rotate with the rotor and move in an axial direction relative to the rotor and the housing during operation of the cryogenic pump.

Abstract: A cryogenic pump may include a housing and a drive shaft positioned in the housing. The cryogenic pump may include at least one pump stage positioned in the housing, the at least one pump stage comprising an impeller coupled to the drive shaft. The cryogenic pump may include a balance drum coupled to the drive shaft and positioned in the housing. The cryogenic pump may additionally include a motor comprising a rotor slidably coupled to the drive shaft, the drive shaft configured to rotate with the rotor and move in an axial direction relative to the rotor and the housing during operation of the cryogenic pump.

Abstract: An inducer may include a hub having an outer lateral surface extending from a leading end to a trailing end, the outer lateral surface having a leading surface section having a first cylindrical shape, an intermediate surface section having a frustoconical shape, and a trailing surface section having a second cylindrical shape. The inducer may include main blades extending circumferentially along a first helical path over the leading surface section, the intermediate surface section, and the trailing surface section, the first helical path having an increasing helix angle. The inducer may additionally include splitter blades, each of the splitter blades located circumferentially between two of the main blades, respectively.