Matches 1 - 18 out of 18


Match Document Document Title
US20090068049 ROTARY EQUIPMENT AND OIL PUMP  
An oil pump has: a base part having a working chamber; and a rotor provided rotatably in the working chamber. The base part is configured by a plurality of split bodies. At least one of the...
US20090104063 ROTOR FOR A VANE PUMP, MADE OF PLASTIC MATERIAL REINFORCED BY METALLIC FOIL  
A rotor (1-3) moulded of plastic material, intended for rotary installation in a cavity of a pump body and for reception of one or more vanes forming the pumping members, characterized in that at...
US20090136374 Vane Pump  
Provided is a vane pump. In the vane pump, a high-hardness main coating layer is provided on a distal end portion of each vane, and an intermediate coating layer having an intermediate hardness...
US20090087334 Sliding Vane Compression and Expansion Device  
A sliding vane compression and expansion device for both cryogenic and normal refrigeration cycles, including the production of liquefied natural gas, is disclosed herein. The device can operate...
US20080247896 Fluoropolymer-containing films for use with positive-displacement fluid pumps  
A positive-displacement pump comprising a housing, a rotatable component disposed at least partially within the housing, and a film disposed at least partially between the housing and the...
US20090152009 Nano particle reinforced polymer element for stator and rotor assembly  
A nano particle reinforced polymer element of a stator and rotor assembly for a power section of a positive displacement fluid motor or a progressive cavity pump. Nano-sized particles are blended...
US20140178235 ELECTROFORMED STATOR TUBE FOR A PROGRESSING CAVITY APPARATUS  
A method for use in producing a stator for a progressing cavity apparatus which includes the use of electroforming to produce the stator tube. A stator tube for a progressing cavity apparatus...
US20130014995 Downhole Motor with Diamond-Like Carbon Coating on Stator and/or Rotor  
In aspects, the disclosure provides a drilling motor that includes a stator and a rotor disposed in the stator, wherein the inner surface of the stator and/or outer surface of the stator includes...
US20090074599 Stator Casing For Eccentric Worm Pumps  
The invention relates to a stator casing for eccentric worm pumps comprising an elastic lining, the cylindrical stator casing having a surface on the inner side, along the longitudinal axis...
US20130149182 Reinforced Stators and Fabrication Methods  
A stator for a progressive cavity pump or motor comprises a tubular housing having a central axis. In addition, the stator comprises a stator insert coaxially disposed within the housing. The...
US20080025861 Sliding Element and Fluid Machine  
A lubrication part serving as a bearing metal is provided in a scroll compressor at a sliding part between a cylindrical part of a slide busing and an extension of a movable scroll. An inner...
US20110052439 REFRIGERANT COMPRESSOR AND REFRIGERATING CYCLE DEVICE  
A refrigerant compressor includes a first layer (24) composed of a single layer of chromium, a second layer (25) composed of an alloy layer of chromium and tungsten carbide, a third layer (26)...
US20120087822 COMPRESSOR  
A compressor, characterized in that a steel is used as the base material for the other sliding material vane 10 and nitrided, a CrN or DLC film is formed on the surface by PVD treatment, and a...
US20110206550 Vane for a single-vane vacuum pump  
The invention relates to a vane for a vane pump, in particular a vane vacuum pump, having a crucible-shaped housing and provided with a rotor mounted eccentrically and rotatably in the housing,...
US20170101988 INTEGRATED PRESSURE PLATE AND PORT PLATE FOR PUMP  
An integrated pressure plate and port plate, and method of forming same, for a pump includes a housing having a pumping chamber formed therein. The housing includes first and second metal pressure...
US20160341249 COMPRESSOR  
A lubricating layer having wear resistance and reliability on the wear resistance, and a compressor including a lubricating layer are provided. The compressor may include a lubricating layer...
US20160047377 POSITIVE DISPLACEMENT GEAR PUMP  
A positive displacement pump has a casing with a central body and two closing lids, the central body being provided with two cylindrical communicating chambers, one suction pipe and one discharge...
US20150292101 METHOD FOR COATING A SLIDING SURFACE OF A TROCHOID HOUSING IN A ROTARY ENGINE AND TROCHOID HOUSING COMPRISING A COATED SLIDING SURFACE  
The invention relates to a method for coating a running surface (2) of a trochoid housing (1) of a rotary engine, characterized in that a circumferential recess (5) is made in the running surface...

Matches 1 - 18 out of 18