| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 062500600 | Specific pump structure | 18 |
| 20080302111 | Apparatus And Method For Pumping A Cryogenic Fluid From A Storage Vessel And Diagnosing Cryogenic Pump Performance - An apparatus and method are provided for pumping a cryogenic fluid from a storage vessel. The cryogenic fluid is pumped from the storage vessel to a heat exchanger and then to a delivery conduit. A pressure sensor measures fluid pressure in the delivery conduit. An electronic controller is programmed to monitor a signal from the pressure sensor, process the signal to determine from the measured process fluid pressure when cryogenic pump performance is degraded, and to send a signal to an operator of the apparatus indicating when the electronic controller determines that cryogenic pump performance has degraded below a predetermined threshold volumetric efficiency. | 12-11-2008 |
| 20100180607 | HIGH PRESSURE CRYOGENIC FLUID GENERATOR - The cryogenic fluid generator includes at least one pump assembly having an actuator mounted to a container assembly. A pump assembly housing includes a longitudinal positioning opening and a pressurization cavity at a distal end terminating with a pump assembly outlet. An internal check valve assembly includes a shaft positioned within an opening of the pump assembly housing that extends into the pressurization cavity. The shaft is attached to the actuator and includes a longitudinal guidance slot; a fluid passageway; and, an internal sealing surface. A positioning bar assembly is positioned within the guidance slot. A connecting rod is securely connected at a first end to the positioning bar assembly, the connecting rod being positioned within the fluid passageway and terminating with a flow inhibiting element. A seal is positioned between the pump assembly housing and the check valve to provide a closure for the pressurization cavity. | 07-22-2010 |
| 20100287955 | TWO-PHASE HYDROGEN PUMP AND METHOD - A hydrogen pump comprises a pump housing and a heating mechanism. The pump housing receives liquid hydrogen through a housing inlet. The heating mechanism vaporizes the liquid hydrogen into gaseous hydrogen. The pump housing releases the gaseous hydrogen through a housing outlet at a predetermined pressure level of the gaseous hydrogen. The pump housing closes the housing outlet such as when the liquid hydrogen in the pump housing falls below a depletion level. The pump housing opens and additional liquid hydrogen enters the pump housing through the housing inlet. | 11-18-2010 |
| 20100300119 | PUMP FOR SUPPLYING CRYOGENIC COOLANT - A pump for supplying a cryogenic liquid coolant in accordance with the present invention includes: a housing having an inlet port for introducing a cryogenic liquid coolant, an outlet port for discharging the cryogenic liquid coolant introduced through the inlet port, and a chamber for connecting the inlet port and the outlet port; an impeller rotatably retained in the housing for introducing the cryogenic liquid coolant through the inlet port and discharging the same through the outlet port; and a vapor exhausting part provided in the housing for exhausting vapor generated from the cryogenic liquid coolant. | 12-02-2010 |
| 20120090335 | METHOD AND SYSTEM FOR INSTALLATION AND MAINTENANCE OF A SUBMERGED PUMP - A method and system for installing and maintaining submerged pumps is disclosed. The submerged pump may be positioned within a product storage vessel. Alternatively the submerged pump may be positioned within a product storage vessel with a sump that is integral with and not removable from the vessel. The pump may used for the movement of products, such as cryogenic liquids, including but not limited to, nitrogen, argon, ethylene, natural gas, nitrous-oxide, carbon-monoxide, hydrogen, helium, and carbon-dioxide. Superior results are obtained with respect to access, maintenance and handling of the pump within a product storing vessel. | 04-19-2012 |
| 20120291455 | METHOD AND APPARATUS FOR MOVING CRYOGEN - Method and apparatus for moving liquid cryogen at relatively low pressures and at high volumes. An axial rotor pump may have housing with a substantially vertical tubular space. The axial rotor pump may pump liquid cryogen from an inlet near a bottom of the housing to an outlet near a top of the housing. A seal may not be required between a pump drive shaft and the top of the pump housing by using an extended neck or a magnetic coupling arrangement. | 11-22-2012 |
| 20140096540 | ZERO LOSS COOLDOWN OF CRYOGENIC PUMP - A system for cryogenic liquid delivery includes a cryogenic vacuum pump that operates to efficiently cool down the cryogenic delivery pump. The system is a no loss system that provides reduced cool down time at lower cost greater versatility and maintainability. | 04-10-2014 |
| 20140109599 | Cryogenic Pumps - A cryogenic pump for a cryogenic liquid has associated therewith a heater for vaporizing the cryogenic liquid. The heater comprises a chamber (bounded by an inner sleeve and an outer sleeve), a helical heating coil having a plurality of turns disposed within the chamber, an inlet for cryogenic liquid communicating with the heat exchange coil and an outlet for resulting heated fluid communicating with the heat exchange coil. An inlet and an outlet from the water chamber for heat exchange fluid are provided. The heater chamber has a helical baffle having a plurality of turns for guiding the heat exchange fluid over the turns of the heat exchange coil. The turns of the baffle are interspaced with the turns of coil. | 04-24-2014 |
| 20140109600 | Cryogenic Pump - A cryogenic pump is typically used to supply high pressure natural gas to an engine. The pump has a piston operable to discharge cryogenic liquid from a pumping chamber within a pump housing. The cryogenic liquid exits the chamber through an outlet port in which a check valve is positioned. The check valve has a valve member which is loaded by a spring and is retained by a retaining member accessible from outside the housing. The check valve has an inlet which is axial with the valve member and an outlet which is transverse to the axis of the valve member. | 04-24-2014 |
| 20140230459 | SYSTEM AND METHOD FOR PROCESSING LIQUEFIED GAS - The present invention relates to liquefied gas treatment system and method, and the liquefied gas treatment system includes: a liquefied gas supply line connected from a liquefied gas storing tank to a source of demand; a heat exchanger provided on the liquefied gas supply line between the source of demand and the liquefied gas storing tank, and configured to heat exchange liquefied gas supplied from the liquefied gas storing tank with heat transfer media; a media heater configured to heat the heat transfer media; a media circulation line connected from the media heater to the heat exchanger; a media state detecting sensor provided on the media circulation line, and configured to measure a state of the heat transfer media; and a controller configured to set a coagulation prevention reference value for preventing the heat transfer media from being coagulated, and change a flow rate of the heat transfer media flowing into the media heater or calories supplied to the heat transfer media by the media heater on the basis of a state value of the heat transfer media by the media state detecting sensor and the coagulation prevention reference value. | 08-21-2014 |
| 20140290280 | SYSTEM FOR SUPPLYING LIQUEFIED NATURAL GAS FUEL AND METHOD OF OPERATING THE SAME - A system for supplying LNG fuel includes a fuel supplying line connected from an LNG storage tank to an engine, a boosting pump provided on the fuel supplying line and configured to pressurize LNG outputted from the LNG storage tank and cool down in a standby mode, a high pressure pump configured to pressurize the LNG outputted from the boosting pump to high pressure, and a return line connected between the LNG storage tank and the high pressure pump, in which the LNG is returned through the return line. | 10-02-2014 |
| 20150013351 | CRYOGENIC PUMPS - A reciprocating cryogenic pump | 01-15-2015 |
| 20150033769 | PUMP TOWER INSTALLATION STRUCTURE OF LIQUEFIED NATURAL GAS STORAGE TANK AND MANUFACTURING METHOD THEREOF - Disclosed herein are a pump tower installation structure of a liquefied natural gas (LNG) storage tank and a manufacturing method thereof. The pump tower installation structure of the LNG storage tank includes an adaptor disposed at a predetermined area of an opening portion formed at an inner hull disposed on an upper side of the LNG storage tank, and a cover having through-holes corresponding to pipes of the pump tower installed at the storage tank, and disposed at a remaining area of the opening portion to be connected with the adaptor. | 02-05-2015 |
| 20150143821 | Multimode Gas Delivery for Rail Tender - Disclosed is an liquid natural gas supply and delivery system with a multimode fuel gas delivery system and process. The tender is capable of supplying gaseous methane fuel to an cryogenic tank via direct pumping, pressure transfer, or any combination mode due to a configuration of pumps, heat exchangers, and piping and controls. There is redundancy in the tender and it can operate with saturated or unsaturated liquid | 05-28-2015 |
| 20150143822 | CRYOGENIC SUBMERGED PUMP FOR LNG, LIGHT HYDROCARBON AND OTHER ELECTRICALLY NON-CONDUCTING AND NON-CORROSIVE FLUIDS - A cryogenic submerged multi-stage pump assembly includes a vertically oriented pump shaft. A permanent magnet electrical motor includes a rotor attached to the pump shaft and a stator disposed about the rotor. A first-stage impeller assembly includes a first impeller attached to the pump shaft, the first impeller configured to move a cryogenic fluid from a first impeller inlet to a first impeller outlet when the pump shaft is rotated by the electric motor. A second-stage impeller assembly includes a second impeller attached to the pump shaft, the second impeller configured to move the cryogenic fluid from a first impeller housing to a second impeller inlet and then to a second impeller outlet when the pump shaft is rotated by the electric motor. The first and a second impeller housing are disposed about the first and second impellers and configured to channel the cryogenic fluid. | 05-28-2015 |
| 20150377419 | SYSTEM AND METHOD FOR CONTROLLING OPERATION OF LIQUEFIED NATURAL GAS SYSTEM - A method of controlling a liquefied natural gas system is provided. The method includes providing a first pump in association with a tank. The method includes connecting a second pump downstream of the first pump through a supply line. The method further includes providing a valve assembly in a return line provided downstream of the second pump. The method includes connecting an adjustable restrictor in the return line, the adjustable restrictor positioned downstream of the valve assembly. The method further includes cooling the second pump by operating the valve assembly in an open configuration to fluidly connect the adjustable restrictor and the second pump. The method also includes providing a flow of the liquefied natural gas to the second pump for controlling an operating temperature of the second pump. The method includes selectively operating the adjustable restrictor to control a suction pressure associated with the second pump. | 12-31-2015 |
| 20160061384 | COMPACT LIQUID NITROGEN PUMP - The invention provides a cryogenic liquid pump system, having a first end with at least an insulating lid and motor; a second end, wherein the second end is a pump, said pump comprising an impeller; and a gas release plate upstream of the impeller; and a shaft disposed between the first end and the second end, wherein the motor imparts mechanical energy to the pump through the shaft. Also provided is a method for preventing cavitation of a cryogenic liquid in a cryogenic pump, the method having the steps of constantly maintaining pressure on the liquid in the pump and evacuating gas bubbles that form within the pump. | 03-03-2016 |
| 20160146199 | Cryogenic Pump with Insulating Arrangement - A cryogenic pump configured for pressurizing a cryogenic fluid is provided. The cryogenic pump includes a warm end portion adapted to not contact cryogenic fluid during operation of the pump and including one or more driving components. The cryogenic pump includes a cold end portion adapted to contact cryogenic fluid during operation of the pump and including a pump inlet and a pump outlet. An insulating arrangement including an insulator plate is arranged between the warm end portion and the cold end portion and defines a first air gap between the cold end portion and the insulator plate. | 05-26-2016 |
