Class / Patent application number | Description | Number of patent applications / Date published |
417423110 | Having means to prevent fluid leaking between pump and motor | 15 |
20090110574 | Centrifugal pump systems - A pumping system for pumping a mixture, e.g. a drilling fluid mixture, containing liquid and solids, the pumping system including a container, centrifugal pump apparatus for pumping the mixture, the pump apparatus including a pump shaft, a drive motor, a shaft packing structure, and bearing apparatus around the pump shaft, the packing structure, bearing apparatus and part of the pump shaft within an enclosed non-vented housing. This abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure and is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims, 37 CFR 1.72(b). | 04-30-2009 |
20090202372 | ELECTRIC MOTOR AND ELECTROPUMP - An electric motor ( | 08-13-2009 |
20120082575 | OIL-FREE, LOW PRESSURE WATER VAPOR BLOWER - A high-speed, single-stage, motor-driven blower designed to move water vapor includes an axial flow compressor and a rotating assembly supported by gas foil bearings and driven by a brushless permanent magnet synchronous motor utilizing a remotely mounted variable frequency drive. The blower is immersed in a water vapor flow for operation. Accordingly, the blower comprises an outer blower housing and an inner blower housing defining an annular cavity therebetween, wherein the inner blower housing is held within the outer blower housing by seals, and contains and protects the motor components and the bearings against water damage and contamination. A cooling flow may be leaked through the inner blower housing to cool the internal operational components of the blower and to capture heat therefrom, which can be added to the water vapor flow moving through the blower. | 04-05-2012 |
20120121448 | ELECTRIC PUMP FOR VEHICLE - An electric pump for a vehicle is disclosed. An electric pump for a vehicle, which is disclosed, may include a pump body that is divided into a motor room and a pump room, a shaft that is connected to the motor room and the pump room and a sealing unit is interposed therebetween, and an impeller that is mounted on the shaft in the pump room. More specifically, a leachate exhaust passage for exhausting leachate that is leaked through the sealing unit is formed in the pump body, and the leachate exhaust passage is connected to a reaction gas exhaust portion of a fuel cell stack to aide in the exhaust of the leachate accordingly. | 05-17-2012 |
20130028765 | VORTEX PUMP DEVICE - A vortex pump device may include a pump case which forms a pump chamber and a stator accommodating chamber partitioned from the pump chamber, and a wiring outlet part for taking out a wiring line within the pump case to an outer side. The pump case is provided with an outer peripheral wall surrounding an upper space formed on an upper side in the stator accommodating chamber. The wiring outlet part includes a wiring outlet port which is formed by cutting out the outer peripheral wall, a wire placing part on which the wiring line taken out from the wiring outlet port to the outer side is placed, and a fixing member with which the wiring line is sandwiched and fixed between the wire placing part. | 01-31-2013 |
20130302189 | CENTRIFUGAL ELECTRIC PUMP FOR SUCTION OF AERIFORM FLUIDS WITH LIQUIDS ANTI-INFILTRATION DEVICE - A centrifugal electric pump ( | 11-14-2013 |
20140003981 | Pump Device | 01-02-2014 |
20140072463 | PUMP WITH DRY RUN PROTECTION - The invention relates to a pump, in particular a centrifugal pump ( | 03-13-2014 |
20140072464 | INTEGRATED ENDSHIELD AND PUMP VOLUTE FOR AN ELECTRIC PUMP AND METHOD OF FORMING AN ELECTRIC PUMP - An electric pump comprises a stator, a rotor, and an endshield. The interface plate is fixed to the stator and is configured to couple the electric motor to a pump. The pump volute is formed as an integral portion of the endshield, thereby minimizing the axial length of the electric pump. A drainage passageway is provided on the endshield to harmlessly drain away any fluid that seeps past the pump's seals. In one embodiment of the invention, the drainage passageway is a groove that faces the stator and is configured to facilitate the evaporation of and leak fluid by channeling the fluid near the stator, which warms the fluid and thereby increases the fluid's evaporation rate. | 03-13-2014 |
20140093409 | CENTRIFUGAL ELECTRIC PUMP - A centrifugal electric pump, of the type comprising a shell for the containment of a set of impellers, interleaved with fixed diffusers and of a motor that drives the impellers to rotate, since they are keyed on a same shaft as the motor, a sealing chamber is provided between the impellers and the motor and is extended around the shaft to collect condensation water and water seepage originating from the set of impellers, the sealing chamber is connected to the outside of the pump by means of at least one water discharge duct. | 04-03-2014 |
20140134021 | Pump for a Domestic Appliance - A circulation pump for a domestic appliance, including a motor body, a motor, a hydraulic body attached to the motor body and including an inlet and an outlet, and a closure mechanism or member attached to the hydraulic body, a hydraulic chamber where the fluid flows, which is delimited between the hydraulic body and the closure mechanism or member. The pump includes an impeller housed in the hydraulic body and rotating, causes a substantially circular flow of the fluid in the hydraulic chamber, and a stationary element suitable or configured for aiding in discharging the fluid from the pump. The stationary element may be attached to at least one of the elements demarcating the hydraulic chamber and may be arranged in the hydraulic chamber such that it blocks or resists against the flow of the fluid. | 05-15-2014 |
20140271288 | PUMP SEAL WITH THERMAL RETRACTING ACTUATOR - A thermal actuator for a rotating shaft shutdown seal that has a piston with a portion of its axial length enclosed within a chamber shell with a material that expands upon a rise in temperature. The portion of the actual length of the piston within the chamber has at least two different diameters with the larger diameter leading in the direction of travel of the piston. Upon a rise in temperature, expansion of the material surrounding the piston within the chamber creates a force on the piston in the desired direction of travel. Below a preselected temperature the piston is positively locked with a passive release when the preselected temperature is reached. | 09-18-2014 |
20140308142 | PUMP FOR PUMPING LIQUID COMPRISING SOLID MATTER - The invention relates to a pump for pumping contaminated liquid comprising solid matter, the pump comprising a hydraulic unit ( | 10-16-2014 |
20140377103 | PUMP UNIT - A pump assembly with a stator housing ( | 12-25-2014 |
20160047394 | ELECTRIC WATER PUMP WITH COOLANT PASSAGE - An electric water pump includes an electric motor having a stator which generates an electromagnetic field by control signals supplied from a pump driver. A rotor rotates by the electromagnetic field generated by the stator. An impeller is connected to and rotates with the rotor to circulate a coolant. An inside space of the electric water pump may include a motor room in which the electric motor is disposed, a volute room in which the impeller is positioned, and a pump driver room in which the pump driver is positioned. | 02-18-2016 |