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7255544 |
Housing including shock valves for use in a gerotor motor
A housing for a motor having fluid passages integrated within. The passages include a first passage for receiving a fluid from outside the motor, a second passage for directing the fluid away from...
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7003838 |
Hydraulic pig advance system comprising a control volume chamber containing hydraulic fluid and a force transmitting member
This invention relates to a hydraulic pig advance system comprising a control volume chamber containing hydraulic fluid and a force transmitting member. The system further comprises two directional...
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6948917 |
Valving system for a downhole hydraulically actuated pump
An engine for actuating a hydraulic downhole pump having a piston vertically reciprocated in a cylinder includes a reversing valve carried with the power piston and serving, when in a first...
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6185956 |
Single rotor expressor as two-phase flow throttle valve replacement
A positive displacement machine having a set of parallel meshing rotors employed in a compression-expansion refrigeration system receives a fluid refrigerant input from a condenser and expands the...
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6149393 |
Air lift pump
A combination of an air lift pump and a mechanical pump is used to lift a fluid from a lower level to a higher level. In preferred embodiments compressed air is released below the level of a...
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6126413 |
Apparatus for use in liquid circulation system and method for using said apparatus
The invention relates to an apparatus for use in a liquid circulation system of the kind comprising a primary circulatory circuit provided with a circulation pump and having a primary forward flow...
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5863188 |
Fluid flow reducer
A fluid flow reducing unit is incorporated in various mechanical systems to increase the mechanical advantage without the addition of energy. The fluids gaseous, liquid or mixtures thereof, are...
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5655895 |
Turbopump for conveying highly viscous substances
A turbopump pumps a fluid of high viscosity. The pump has an inlet and an outlet. The pump is disposed on a shaft. A turbine has a separate inlet and a separate outlet from those of the pump. The...
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5588813 |
Fluid motor driven pump arrangement having motive fluid exhaust into the pump chamber
The dosing arrangement comprises two first pumps for a liquid medium B whose pistons are mutually connected by a piston rod, and two other pumps and for a liquid medium A which are positioned...
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5558502 |
Turbo pump and supply system with the pump
In a turbo, pump according to the present invention, blades 3e and a shroud 3f are continuously formed with a boss 3c of a turbine wheel 3, a meridian plane configuration of the shroud 3f is formed...
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5524683 |
Method and apparatus for filling containers
An apparatus for filling containers including a pump housing having a pump chamber, a product inlet in communication with a supply of product under pressure, a product outlet and a piston...
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5320500 |
Continuous mixing device, method and use in an installation for pumping a high viscosity fluid
The invention concerns a continuous mixing device (1) having a rotating shaft (4) fitted with blades (7, 7a). The mixture obtained at the outlet from the mixer results from admitting to the mixer a...
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5193988 |
Reverse osmosis system and automatic cycling booster pump therefor
A reverse osmosis system including a reverse osmosis filter with a reverse osmosis membrane and having an inlet port coupled to a source of feed water under predetermined pressure via a feed water...
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5117908 |
Method and equipment for obtaining energy from oil wells
Pressurized petroleum flows from a well into a turbine. The petroleum undergoes a pressure reduction in the turbine and then enters a separation chamber where it is separated into liquid and...
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4979880 |
Apparatus for pumping well effluents
A fluid motor and rotary pump are arranged in a cylindrical housing which is releasably secured in a cup-shaped base unit so that the housing can be removed from and inserted into the base via the...
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4820135 |
Fluid driven pumping apparatus
A fluid driven pumping apparatus comprises a housing containing a twin rotor screw type positive displacement motor and a twin rotor screw type positive displacement pump. The screw rotors of said...
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4721436 |
Process and installation for circulating fluids by pumping
This pumping installation comprises a source (1) of liquid and a turbo-machine comprising a pump (7) having an intake (8) and an outlet (9) and a turbine (5) which is fixed on the same shaft as the...
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4712984 |
Process and apparatus for circulating fluids by pumping
Process for pumping fluid composed of a liquid phase and of a gaseous phase, which involves conveying liquid under pressure to the inlet of the turbine of a turbo-machine comprising a pump and a...
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4292011 |
Turbo pump gas compressor
An improved power fluid driven turbo pump is provided for pumping oil wells of the type having, from time-to-time, significant quantities of gas included in the oil so that wide variations in the...
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4256440 |
Liquid dosing apparatus
This invention is directed to an apparatus for dosing a solution into a liquid conduit by means of a piston dosing pump mechanically driven by the liquid pressure, which comprises a dosing pump...
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4096059 |
Proportioning fluids
Apparatus for accurately proportioning and mixing fluids comprising a double acting piston/cylinder unit of which the cylinder is divided into two chambers by the piston and the volume of the...
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3981626 |
Down hole pump and method of deep well pumping
A down hole pump and, more particularly, a turbine driven geothermal down hole pump has a housing insertable in a well casing to a depth wherein geothermal liquid is exposed to the inlet of the...
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3872672 |
Ammonia driven underwater motor
An ammonia powered motor device for use in deep water is described as comsing a housing defining a chamber into which an ammonia gas pressure operated motor exhausts. A metering pump admits...
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3775028 |
PUMP UNIT FOR WATER SUPPLY
A pump assembly including a first drive member unit such as a hydraulic cylinder having an axial movable pumping member and having a water inlet pressure source, a pump unit having an axially...
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3732040 |
PUMP FOR DELIVERING HEATED FLUIDS
A thermomechanical pump particularly suited for use in pumping a warming fluid obtained from an RTG (Radioisotope Thermal Generator) through science and flight instrumentation aboard operative...
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3656868 |
METHOD OF PUMPING FLUIDS WITH AN ENERGY WAVE GENERATOR
A method of pumping fluids from lower pressures to higher pressures by means of an energy wave generator wherein the rarefactions of energy waves in the higher pressured fluid are an assisting...
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3589839 |
FLUID FEEDER FOR PRESSURIZED FLUID SYSTEM
Fluid feeder apparatus for injecting fluid into a pressurized fluid system includes a pump activated by a pressurized system acting on a fluid motor for periodically driving said pump to inject...
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3440967 |
FLUID PRESSURE SOURCE WITH BOOSTER
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3318091 |
Fuel igniter for a jet turbine engine afterburner
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3304873 |
Hydraulically actuated pumping system for sewage
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3247778 |
Coffee makers
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3161139 |
Method and means for pumping corrosive liquids
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2843046 |
Fluid pump
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2779293 |
Method and apparatus for pumping
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