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7632065 |
Centrifugal pump and method of manufacturing the same
A centrifugal pump includes a diffuser section for decreasing a velocity of the fluid discharged from an impeller, a return vane for leading the fluid which has passed through the diffuser section...
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7607903 |
Stator tube removal and installation device
An apparatus for removing a stator tube from a position about a rotor of a progressing cavity pump is provided. The apparatus includes an actuator assembly having a base and a piston which is...
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7600983 |
Radial plunger pump and method for manufacturing pump housing
A pump housing supporting a driving shaft has a plurality of cylinder bores extending radially and arranged at substantially regular intervals around an outer periphery of the driving shaft. Each...
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7553143 |
Lobe pump system and method of manufacture
A method of manufacturing a rotor to be used in a dual-rotor lobe pump system for pumping a material at a periodic rate is provided. The method includes selecting a desired periodic flow rate for...
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7472478 |
Adaptive machining and weld repair process
An apparatus and method are provided for an adaptive machining and weld repair process for repairing airfoils, damage to an airfoil leading edge and tip. First, damaged material is machined away...
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7470113 |
Split knife edge seals
A compressor for a turbine engine includes multiple compressor disks having rotor blades mounted about the circumference of each of the disks. A plurality of stator vanes extend between the rotor...
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7448858 |
Pump aggregate
A pump aggregate A comprises a one-piece cast hollow body 1 including an exterior connection block 3 and an interior lateral wall 16 of a bearing shield. A pressure transmission path is...
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7337538 |
Methods and apparatuses for joining a pumping cartridge to a pump drive
Apparatus and methods of their use are described for engaging a pumping cartridge with a pump drive. In certain embodiments, the cartridge, comprising a cylinder and a movable piston assembly, is...
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7322805 |
Impeller adjustment device and method for doing the same for close coupled pumps
A method and apparatus are provided for adjusting an impeller in a motor and impeller assembly of a pumping device. The method features steps of: tightening mounting bolts so as to move the motor...
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7290995 |
Tandem type trochoid pump and method of assembling the same
A tandem type trochoid pump is comprised of a drive shaft having a non-circular end portion, a spacer positioned between a first trochoid pump and a second trochoid pump in a housing body, a first...
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7216407 |
Apparatus and method for processing screw rotor and cutting bit
A method for processing a screw rotor includes a step of rotating a blade holder 2 while shifting the blade holder 2 in X-axis, Y-axis, and Z-axis directions to form a groove on the outer...
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7185431 |
Method of manufacturing a linear compressor
A method of manufacturing a linear compressor includes measures to account for possible variations in manufacture of the spring connecting between a cylinder part and a piston part. In the method,...
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7107677 |
Process, apparatus, and kit for assembling and disassembling a cryogenic pump
A process, apparatus, and kit for horizontally assembling a cryogenic pump with an apparatus generally including a workstand, a plurality of support stands longitudinally spaced apart from the...
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7094024 |
Performance and durability improvement in compressor structure design
An integral assembly that may improve control over thermal and mechanical behaviors of assembly structures during various transient operation conditions is disclosed. The integral assembly...
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7093341 |
Method of making an axial piston pump barrel with a cast high pressure collection cavity
In an axial piston pump, a plurality of reciprocating pistons are at least partially positioned within a barrel. The barrel includes a ring shaped high pressure collection cavity that is positioned...
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7093352 |
Apparatus for assembling swash plate with pistons in a swash plate compressor
An apparatus for assembling a swash plate with pistons in a swash plate compressor of the present invention can automatically assemble the swash plate with double or single head pistons and shoes...
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7040862 |
Axial flow fan
A fan wherein an airflow adjustment device is used to make fine adjustments to the air discharged by the blower and a method of adjusting a fan's airflow by attaching a flow adjustment device.
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6996905 |
Method of making gear pump
An improved high pressure intermeshing gear pump that achieves high efficiency and a low cost by forming the pumping cavity such that no fillets exist at the corners permitting closed fits without...
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6981321 |
Hydrostatic cylinder block and method of making the same
A hydrostatic cylinder block having a split cylinder block with a slipper hold-down created by breaking down the cylinder block into its basic geometries through near net shaping technology. The...
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6971842 |
Low pressure steam turbine exhaust hood
An exhaust hood for a turbine includes a shell casing, an external support structure, conical corner plates, and a butterfly plate. The shell casing includes an inner surface and an outer surface....
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6912783 |
Method of manufacturing a valve plate for compressor
In a manufacturing method of a valve plate for a compressor according to this invention, a punch die 43 formed with a convex and concave configuration at its tip end face 42 is set at a press...
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6872061 |
Method for making a moineau stator and resulting stator
The invention concerns a Moineau type gear pump stator (1), comprising a stator cavity with global axial extension inside an elongated body, characterised in that the stator cavity is defined by a...
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6817178 |
Master cylinder body and die for molding master cylinder body
A master cylinder body and a die for molding the master cylinder body which is unlikely worn out by a flow of the melt and improves the life duration of the die. A rib provided from a first outlet...
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6748654 |
Method of manufacturing shoe for compressor
A cutting process S 1 cuts a wire 1 into cut pieces each having a volume approximately equivalent to that of a desired shoe 11 . A forging process S 2 sequentially forges cut pieces 2 with...
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6705203 |
Extended male slipper servo pad arrangement for positioning swashplate and method assembling same
An extended male slipper servo pad provides an improved connection between the swashplate and a positioning mechanism in a variable displacement hydraulic unit. The swashplate assembly includes a...
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6687992 |
Assembly method for hermetic scroll compressor
A method of fabricating a scroll compressor of the type including an electric motor in driving engagement with an orbiting scroll member having an orbiting scroll vane in a shell extending along an...
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6684755 |
Crankshaft, compressor using crankshaft, and method for assembling a compressor including installing crankshaft
A crankshaft having at least two eccentric members of different diameter and a method of assembling a reciprocating compressor using a crankshaft having at least two eccentric members of different...
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6675475 |
Method of producing shoe for swash plate type compressor
A method of producing a shoe for a swash plate type compressor, the shoe being disposed between a swash plate and a piston of the swash plate type compressor and formed of an aluminum alloy, the...
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6643927 |
Pump equipment with plural rotary pumps and method for assembling same
In a pump equipment having plural rotary pumps, the respective discharge ports of the rotary pumps are located at the points which are nearly symmetrical with respect to the center axis of the...
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6634102 |
Method of removing a sensing rod from a hydraulic water pump
A method of removing a sensing rod from a hydraulic water pump includes an access plug, a sealing o-ring, and an end block modified to receive the access plug. The access plug preferably includes a...
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6612222 |
Hydrostatic continuously variable transmission
A pump swash plate is assembled in a swash plate hydraulic pump in a hydrostatic continuously variable transmission. In a hydrostatic continuously variable transmission having a hydraulic closed...
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6592191 |
Pump equipment and method for assembling same
In a pump equipment having one or more rotary pumps for hydraulic circuit, the intake port is communicated with the shaft hole for inserting the drive shaft and fluid flows through the shaft hole...
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6578251 |
Method of fabrication of an induction motor driven seal-less pump
A method of fabricating a motor-pump combination with the motor including a stator including a plurality of teeth extending between opposite stator end faces and a plurality of tooth tips defining...
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6572342 |
Variable capacity compressor and method of manufacturing
An easy method for manufacturing a swash plate and a variable capacity swash plate compressor adopting the swash plate are provided. The method for manufacturing a swash plate or a hub having a...
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6568076 |
Method of making an internally profiled stator tube
A method of manufacturing a thick walled Moineau-style stator entails drawing a thick walled tube through rotatable internal and external dies to form a helical outer profile including crests and...
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6560868 |
Method of making lower end cap for scroll compressor
A lower end cap for a scroll compressor includes a plurality of generally u-shaped surfaces, wherein the u-shaped surfaces have circumferentially spaced gaps. The gaps provide a location for...
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6557455 |
Two piece barrel design for a hydraulic oil pump
The present invention finds applicability in barrel assemblies defining a ring shaped cavity that is to be fluidly sealed from a central bore. Current barrel assemblies, such as those used in...
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6543333 |
Enriched cobalt-tin swashplate coating alloy
A swashplate type compressor having a swashplate coated with a tin-cobalt alloy is provided. The alloy comprises between about 12 and 28 weight % cobalt, with the balance substantially comprising...
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6543672 |
Method of forming vacuum chamber of control valve for variable capacity compressor
A vacuum chamber-forming method for forming a vacuum chamber in a power element of a control valve for a variable capacity compressor through a reduced number of steps. A power element is assembled...
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6530762 |
Vacuum pump cooling system, and a method of making it
In accordance with the invention, the vacuum pump cooling system includes tubes expanded along their entire length in bores through the vacuum pump body. The tubes can be made of stainless steel,...
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6453546 |
Apparatus and method for assembling multi-piston compressors
An apparatus and method for assembly multi-piston pumps such as the type used in air conditioning compressors. The conveyor is used to releasably retain the required number of pistons which is then...
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6438834 |
Method of making a swash plate type compressor piston whose head portion is formed by pore-free die-casting
A method of producing a piston for a swash plate type compressor including a head portion which is slidably fitted in a cylinder bore of the compressor, and an engaging section which engages a...
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6397462 |
Method of manufacturing a cylinder piston rod guide
A guide ( 30 ) for surrounding and sealing a rod ( 26 ) in the end of a hydraulic cylinder ( 12 ) including a piston ( 24 ) slidably disposed in the cylinder ( 12 ) and attached to the end of the...
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6353987 |
Methods relating to constructing reciprocator assembly
A method of constructing a reciprocator and moving element for a reciprocator. Also, a method of producing a non-contacting alignment of relatively reciprocating elements.
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6339876 |
Method for assembling an inner core/cylinder block assembly for linear compressor
A method for manufacturing a linear compressor which has a cylinder block with a compressing chamber and an inner core which has a plurality of electric steel plates disposed around the cylinder...
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6332271 |
Method for making rotors
A method for making rotors for screw-type machines with a plunge-cut turning method in which an approximately rectangular groove is formed approximately at a center of a work piece with trilateral...
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6314642 |
Method of making an internal gear pump
An improved internal gear pump design is provided whereby the head plate includes a groove located vertically above the crescent for providing improved axial feed to the roots or innermost spaces...
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6223554 |
Compressor provided with refrigerant and lubricant in specified relationship
The present invention provide a compressor in which an oil for application or that for assembly has non-compatibility with a refrigerant to be charged in a refrigerant circuit and an lubricating...
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6220234 |
Coated compressor diffuser
A coating for a portion of the flowpath of a diffuser of a centrifugal compressor. The coating covers a portion of the diffuser against which flows high velocity air from the compressor blades. The...
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6202301 |
Method for manufacturing piston of variable-capacity type compressor
A piston of a variable-capacity compressor is manufactured by firstly rough machining. The piston is then coupled to the connecting rod, and subsequently the outer peripheral surface and the top...
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