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4793774 |
Variable displacement high pressure pump
A variable displacement piston pump (10) including a plurality of axially aligned pumping cylinders (24) with a drive shaft (40) extending there between having a tiltable swash plate (30) disposed...
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4787826 |
Pump, particularly for highly viscous materials
A pump, particularly, for pasteous masses, includes a rotatable outer wheel provided with a plurality of inner teeth, a pinion rotatable inside the outer wheel eccentrically thereto and having a...
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4759707 |
Press for the preparation of plastic blanks
A press for the preparation of raw plastic material blanks is described. It has a feed device connected to a rotor housing in which a circular rotor is eccentrically supported for the generation of...
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4704071 |
Method and apparatus for pumping liquids
An apparatus and method for raising liquids from one level to a higher level by means of a centrifugal pump operating in air for minimum drag, is described. A sealed tank is half filled with liquid...
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4661046 |
Manure vacuum wagon power assist auger
Apparatus for removing manure from a manure pit or lagoon comprises an elongate screw-type auger having an inlet end which is inserted into the manure, and a suction hose from a vacuum wagon...
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4642030 |
Arrangement for feeding fuel from supply tank
An arrangement for feeding a fuel from a supply tank to an internal combustion engine, the arrangement comprises a motor; a multistage feed pump unit driven by the motor and including a flow pump...
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4627793 |
Motor-driven radial plunger pump
A motor-driven radial plunger pump has an outer housing enclosing a motor section and a pump section drivingly connected thereto. The motor section has a motor housing cooperating with the outer...
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4624627 |
Self-priming pump
A self-priming pump comprises a casing enclosing first and second impellers rotating on a common shaft. The first impeller in an associated impeller cavity pumps a liquid from an inlet to a first...
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4623302 |
Arrangement for facilitating the start-up of not self-priming centrifugal pumps
Arrangement for facilitating the start-up of not self-priming centrifugal mps for the pumping of radioactive liquids in a nuclear fuel reprocessing plant wherein radioactive liquid is pumped from a...
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4607486 |
Centrifugal main fuel pump
A high speed centrifugal fuel pump delivers fuel to the main metering valve of a fuel control of a gas turbine engine for feeding the engine's burners, and a boost pump and positive displacement...
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4500261 |
Pump means for pumping a mixture of coarse-grained material and fluid
A pump for pumping a mixture of a liquid and a coarse-grained material comprises a motor-driven rotor (1) having a plurality of longitudinal cylinders (5, 6, 7, 8) having individual piston members...
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4493616 |
Pump assembly and operating method
An improved pump assembly is used to supply fuel to an aircraft engine and includes a positive displacement pump which supplies fuel during low speed operation of the pump assembly and a...
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4462761 |
Pump, especially for pumping fuel from a storage tank to an internal combustion engine
A pump which is especially suited for pumping fuel from a storage tank to an internal combustion engine includes a rotatable impeller wheel having an annulus of impeller vanes defining respective...
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4457670 |
Methods and apparatus for pumping compressible dynamoelectric machine lubricant material
A preferred method includes pumping extrudable and compressible lubricant storage and wicking material from a supply hopper and into a supply conduit wherein passive valve means are utilized so...
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4336002 |
Two stage pump having an electromotor device
There is described a pump assembly which, in a unitary structure, comprises an electric pump drive motor and a two stage pump contained within a common housing. The motor drives the first stage of...
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4295797 |
Fuel supply pump
A fuel supply pump is proposed where the pumping system comprises two individual pumping stages connected in seriatim and are both driven by the motor armature of an electromotor located in a...
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4281971 |
Inlet inducer-impeller for piston pump
A pump has a pump driven impeller mounted immediately adjacent the port plate which cooperates with a collector to increase the tangential velocity of fluid entering the inlet port to substantially...
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4247263 |
Pump assembly incorporating vane pump and impeller
A fuel pump assembly for supplying fuel to a gas turbine engine has a centrifugal pump, including an impeller, that furnishes the necessary pressure for engine operation at high engine speeds. A...
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4225288 |
Pump set comprising a liquid ring vacuum pump preceeded by a compressor
A pump set comprising a compressor followed by a liquid ring vacuum pump with the two pumps matched to each other so that a relatively small liquid ring vacuum pump can draw and maintain vacuum...
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4205947 |
Method and apparatus for the ventilation of a fuel supply pump
A method for the ventilation of fuel supply pumps as well as a new type of fuel supply pump are proposed which, particularly in pumps having two pumping stages coupled in series within the housing,...
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4090815 |
High vacuum pump
A high-vacuum pump is disclosed as including a molecular pump assembly and an oil-seated rotary pump assembly, a speed change mechanism being interposed between the two assemblies so as to transmit...
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4059367 |
Gaseous fluid compressing apparatus
An apparatus for compressing gaseous fluid including a reciprocating compressor and a receiver or tank connected with the compressor for receiving the compressed gaseous fluid. The compressor...
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4035104 |
Self-priming centrifugal pump
A self-priming centrifugal pump including a priming piston disposed in a priming chamber which communicates with the pumping chamber to receive fluid therefrom. During priming, the priming piston...
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4025238 |
Apparatus for eliminating the effects of cavitation in a main pump
Apparatus for eliminating cavitation in a main pump in which the rotor of a supercharging pump is connected to the rotor of the main pump such that the latter rotor drives the rotor of the...
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4014628 |
Supercharged three-section pump
A three-section pump including a variable displacement piston pump and an additional rotary pump arranged in axial alignment upon a common drive shaft together with a centrifugal pump, the output...
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3946551 |
Pumping and metering system
This invention relates to an electromechanical pumping and fuel metering means interfacing an electronic fuel control adapted for small engines. A centrifugal engine driven pump and electrically...
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3941505 |
Method and apparatus for pumping fuel
Method and apparatus for pumping fuel to jet engines and the like utilizing at least two stages, the first of which is a main stage including a centrifugal pump, together with a secondary stage...
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3930757 |
Pressure equalizing pump
A gear-driven transport ring rotates around a toroidal chamber. Spaced sealing rings carried by the transport ring divide the chamber into compartments which serve to transport liquid from a feed...
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3900275 |
Rotary air compressor
A Rotary Air Compressor built into the air space of a compressed air container, performs suction and air re-cycling, converts the pressurized air outflow through spiral turbine-rotor to assist its...
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3830593 |
HYDRAULIC PUMPS WITH DOUBLE AXIAL PISTONS
Two swash plate pumps each of which are provided with axially directed piston chambers and pistons, are provided in a common housing in operative engagement with a single swash plate. The two pumps...
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3708249 |
PUMP HAVING ROTOR WITH TRANSVERSE FEED AND DISCHARGE
A pump comprising a rotor rotatably driven about a longitudinal axis and including peripheral rotor pockets which each longitudinally extend generally spirally around only a portion of the...
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3657971 |
RADIAL PISTON PUMPS OR MOTORS
A radial piston pump includes two recesses connected to the high pressure port with one recess arranged in proximity to the rotor face, to provide an axial force to counterbalance the axial force...
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3640646 |
AIR COMPRESSOR SYSTEM
A gas turbine driven air compressor system including a first compressor feeding a portion of its compressed air to the turbine for combustion purposes and a second positive displacement compressor...
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3639087 |
SOLUTION PUMP WITH SUPERCHARGED SUCTION FOR ABSORPTION AIR CONDITIONER
A pump for a liquid including a volatile material and particularly adaptable for an absorption refrigeration system with the pump having means for subjecting the liquid at the inlet side of the...
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3632219 |
BACKING PUMPS MORE PARTICULARLY FOR VOLATILE LIQUIDS
A backing pump 4 for volatile fuel is constructed as an axial flow helical impeller pump operating in a cylindrical housing, having a tapered coaxial inlet portion at one end for connection to a...
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3627455 |
MULTICYCLE SELF-BALANCING GEAR PUMP
A multicycle self-balancing gear pump incorporates a variable staging valve for changing the amount of discharge flow of the pump. The pump employs seven gears with six gear meshes at pumping...
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3589836 |
UNITIZED PUMP SYSTEM
A unitized pump system including a drive means for driving a common low-speed booster stage that receives all inlet fluid for the pump system, a low-flow centrifugal stage that supplies the...
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3584975 |
MAGNETIC DRIVE FOR A SOLUTION PUMP FOR ABSORPTION AIR CONDITIONER
A magnetic drive for a fluid pump particularly adapted to pump a refrigerant solution in which the liquid circuit includes a casing for the pump and the drive including a rotatable block of...
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3578880 |
DIAPHRAGM OPERATED PRIMING DEVICE FOR CENTRIFUGAL IMPELLER PUMP
A shaft driven centrifugal impeller pump has a priming arrangement associated with its collector section and drive shaft. A continuously operated diaphragm-type positive displacement pump is...
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3532441 |
PUMPS WITH VAPOR HANDLING ELEMENT
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3527547 |
RADIAL PISTON PUMP
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3465949 |
PRESSURIZING ARRANGEMENT FOR A COMPRESSOR
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3456623 |
SUCTION SYSTEM FOR ROTARY PISTON INTERNAL COMBUSTION ENGINES
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3450052 |
LUBRICATION OF ROTARY PUMPS INTENDED FOR THE DELIVERY OF LIQUID CONTAINING SOLID CONTAMINANTS
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3410216 |
Liquid fuel pumping apparatus for supplying fuel to multi-cylinder internal combustion engines
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3399637 |
Screw feeder for feeding sewage sludge or the like to a combustion chamber
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3380320 |
Hydraulic super-charged variable transmission
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3335563 |
Internal combustion engines
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3323467 |
High pressure pump
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3319570 |
Fuel feeding systems
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