Abstract: A modular pump and motor system including a modular frame and motor stool is disclosed.

Abstract: A double curvature blade for a portion of system. The system may include a pump, such as a submersible pump. The pump may include a multiple or single stage pump. The pump may be powered by a selected motor.

Abstract: A double curvature blade for a portion of system. The system may include a pump, such as a submersible pump. The pump may include a multiple or single stage pump. The pump may be powered by a selected motor.

Abstract: A pressure boosting system and a method of using the same to increase fluid pressure in a fluid distribution system are disclosed. The pressure boosting system may be installed “in-line” with the fluid distribution system.

Abstract: A pressure boosting system and a method of using the same to increase fluid pressure in a fluid distribution system are disclosed. The pressure boosting system may be installed “in-line” with the fluid distribution system.

Abstract: A double curvature blade for a portion of system. The system may include a pump, such as a submersible pump. The pump may include a multiple or single stage pump. The pump may be powered by a selected motor.

Abstract: A pressure boosting system and a method of using the same to increase fluid pressure in a fluid distribution system are disclosed. The pressure boosting system may be installed “in-line” with the fluid distribution system. The pressure boosting system includes a submersible pump and a controller that may be configured to control the submersible pump based on an outlet pressure if inlet pressure is below a threshold. The pressure boosting system may also control the submersible pump based on a flow of the fluid through a pump unit as a function of the inlet pressure. A mounting bracket may be moveably coupled to a tank of the pressure boosting system.

Abstract: A multistage submersible pump includes interstage sealing operable to inhibit upstream fluid recirculation, while also having a reduced or eliminated wear-in procedure. A wear-in bearing surface erodes during an initial, wear-in procedure of the pump, and a low-friction service bearing surface slowly engages as the wear-in procedure is completed. Both the wear-in and service bearing surfaces are integrated into a single, stamped stainless steel housing component, such that axial tolerance between the two surfaces is tightly controllable. The pump impeller provides corresponding wear-in and service bearing elements formed as part of a single monolithic component, thereby also offering tight axial tolerance control for the bearing elements which engage the bearing surfaces of the cup component.

Abstract: A submersible pump, and method of making the submersible pump, is disclosed. The pump comprises a housing, a plurality of impeller stages serially disposed in the housing from a bottom impeller stage to a top impeller stage, an impeller stage bypass hole extending through one of the diffusers and a housing bypass hole extending through the housing radially outwardly from one of the impeller stages.

Abstract: Systems and methods for condensate removal are disclosed. A reservoir may include a trap structure and a sediment trap may be disposed within the trap structure. The sediment trap may be positioned within the reservoir so that condensate flowing into the reservoir is filtered before flowing out of the reservoir.

Abstract: Systems and methods for condensate removal are disclosed. A reservoir may include a trap structure and a sediment trap may be disposed within the trap structure. The sediment trap may be positioned within the reservoir so that condensate flowing into the reservoir is filtered before flowing out of the reservoir.

Abstract: A submersible pump, and method of making the submersible pump, is disclosed. The pump comprises a housing, a plurality of impeller stages serially disposed in the housing from a bottom impeller stage to a top impeller stage, an impeller bypass hole extending through one of the impeller stages and a housing bypass hole extending through the housing radially outwardly from one of the impeller stages.

Abstract: A submersible pump, and method of making the submersible pump, is disclosed. The pump comprises a housing, a plurality of impeller stages serially disposed in the housing from a bottom impeller stage to a top impeller stage, an impeller stage bypass hole extending through one of the diffusers and a housing bypass hole extending through the housing radially outwardly from one of the impeller stages.

Abstract: A centrifugal pump may include plural pump stages, each comprising an impeller assembly, a stationary disc assembly and a diffuser assembly, all disposed about an impeller shaft that is driven by a motor. The impeller assembly may include upper and lower impeller shrouds having facing surfaces, and a plurality of impeller vanes extending between the surfaces of the shrouds to define a plurality of flow passages for liquid to flow outwardly from a central hub of the impeller assembly. To assist in pressure recovery of the pump, the distance between the surfaces of the impeller shrouds may increase as the radial distance from the central hub increases.

Abstract: A centrifugal pump includes plural pump stages, each comprising an impeller assembly, a stationary disc assembly and a diffuser assembly, all disposed about an impeller shaft. A floating impeller hub seal is supported by a diffuser assembly to minimize fluid recirculation. A thrust washer is disposed around the impeller shaft and is engageable with an impeller hub and the hub seal. A wear ring is secured to a disc assembly and engageable with a wear surface on the impeller.

Abstract: A jet pump for pumping fluids is disclosed. The jet pump comprises an impeller, a fluid inlet port and a venturi tube having an inlet opening and an outlet opening. The venturi tube is disposed between the fluid inlet port and the impeller. The jet pump further comprises a fluid outlet port, a pump cavity disposed between the impeller and the fluid outlet port, a return cavity and an externally accessible retaining system disposed between the return cavity and the venturi tube. The retaining system is adapted to receive any of a plurality of nozzles of differing orifice dimensions to provide pump outputs according to a respective plurality of pump performance curves.

Abstract: A superconducting magnet system wherein a cryocooler provides refrigeration to a cryogenic shield for the superconducting magnet and a heat pipe extends from the cryogenic shield to a cryogen vessel for the provision of supplementary refrigeration.

Abstract: A method for operating a cryocooler which provides opportunity for timely intervention prior to failure thus enhancing the reliability of the provision of the refrigeration wherein temperature trending of at least one cryocooler component or the refrigeration load is monitored and used to calculate a service time.

Abstract: A pulse tube system for generating refrigeration for uses such as in magnetic resonance imaging systems wherein an oil-free compressor operating at a higher frequency generates pulsing gas which undergoes a frequency reduction and drives the pulse tube system at a more efficient lower frequency.

Abstract: A method for operating a cryocooler which provides opportunity for timely intervention prior to failure thus enhancing the reliability of the provision of the refrigeration wherein contaminant concentration downstream of a compressor but upstream of the cryocooler is monitored and the time rate of change of the contaminant concentration is used to calculate a service time.