| Patents for F04B 51 - Testing machines, pumps, or pumping installations (2,128) |
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| 05/22/2013 | CN103114986A Oil level detecting device for compressor |
| 05/22/2013 | CN103114984A Control system and control method for opening and closing type pump test |
| 05/21/2013 | US8444398 Pump manifold support |
| 05/16/2013 | DE102011118282A1 Hydraulic pump test stand for hydraulic pump, has electronic feedback controller, which adjusts angle of hydraulic motor as control variable considering circuit temperature of hydraulic fluid |
| 05/15/2013 | CN202938888U Detecting device |
| 05/15/2013 | CN202937434U Seam allowance diameter conversion device used for pump experiment |
| 05/15/2013 | CN202937433U Diaphragm pump failure warning system based on vibration detection |
| 05/15/2013 | CN202937430U Disc-shaped sensor valve-based piezoelectric stack pump |
| 05/15/2013 | CN103104467A Pump cylinder measuring method of oil well pump |
| 05/15/2013 | CN103104466A Quality monitoring method of new pump of oil-well pump |
| 05/15/2013 | CN103104465A Quality monitoring method for pump cylinder repair |
| 05/15/2013 | CN103104464A Measuring method applied to oil pumping pump valve |
| 05/15/2013 | CN103104463A Quality measurement method for oil well pump |
| 05/15/2013 | CN103104462A Sand control pump ground pressure test method |
| 05/15/2013 | CN103104461A Repairing plunger quality monitoring method applied to oil pumping pump |
| 05/15/2013 | CN103104460A Detection and repair technique |
| 05/15/2013 | CN103104459A Sand control pump ground pressure test auxiliary device and pressure test method thereof |
| 05/15/2013 | CN103104458A Auxiliary device of sand control pump ground pressure test |
| 05/15/2013 | CN103104457A Oil well pump inner wall inspection device and inspection method thereof |
| 05/15/2013 | CN103104448A Quality monitoring method for oil well pump |
| 05/15/2013 | CN103104446A Overhauling method for oil well pump in oil field |
| 05/15/2013 | CN103104436A Vacuum air pump |
| 05/08/2013 | CN202926581U Test system for main fuel pump of airplane |
| 05/08/2013 | CN202926580U Variable pump tilting tray displacement detection device and steering engine |
| 05/08/2013 | CN202926579U Compressor vibration signal monitoring system based on digital frequency multiplier |
| 05/08/2013 | CN202926578U Slurry pump laboratory bench capable of adjusting concentration of absorbed slurry |
| 05/08/2013 | CN103089685A Speed measuring actuating disc with two bosses |
| 05/08/2013 | CN103089602A Assembly detection device of piston type electric vacuum pump |
| 05/08/2013 | CN103089601A Inner wall detector for oil well pump |
| 05/08/2013 | CN101761472B Method and device for detecting fault and efficiency of an air compressor |
| 05/07/2013 | US8437975 Subsea accumulator monitoring system |
| 05/07/2013 | CA2722118C Syringe pump detection system for bolus application |
| 05/07/2013 | CA2650669C Apparatus and method for detection of a leak in a pump membrane |
| 05/02/2013 | WO2013063262A1 Pump monitoring device |
| 05/02/2013 | US20130104645 Calculating Downhole Cards in Deviated Wells |
| 05/01/2013 | CN202914291U Portable fire pump unit engineering field testing device |
| 05/01/2013 | CN103075333A Noise monitoring and protection device and method for bearing of oilless vacuum pump |
| 04/25/2013 | WO2011104548A3 Fluid-working machine and method of operating a fluid-working machine |
| 04/24/2013 | CN202900610U Test machine for electric fuel pump |
| 04/24/2013 | CN103062035A Test run system and method of low temperature air compressor |
| 04/24/2013 | CN103062034A Single screw oil well pump inspection device |
| 04/24/2013 | CN103062033A Air staining bottle for inflator |
| 04/24/2013 | CN102141034B Work indication platform for electronic vacuum pump |
| 04/18/2013 | WO2013028440A3 Electric fuel pump tester and method |
| 04/17/2013 | CN202883341U Oil pump assembly performance tester |
| 04/17/2013 | CN202883340U Oil pump assembly durability test bench |
| 04/17/2013 | CN202883339U Coaxiality precise measurement device of concrete machine pumping system |
| 04/17/2013 | CN103047126A Novel device and method for testing ESP (electronic stability program) /ABS (anti-lock brake system) pumps |
| 04/17/2013 | CN103047125A Oil pump feeding fault detecting method and device of high-pressure plunger-type fuel pump |
| 04/17/2013 | CN103047124A Multi-function test device for measuring external characteristic and internal flow of centrifugal pump |
| 04/17/2013 | CN102102741B Pump belt tensioning mechanism with torque detection function |
| 04/10/2013 | CN202867166U Oil burning pump performance detecting device |
| 04/10/2013 | CN202867165U Extended-range pump listener |
| 04/10/2013 | CN103032300A Fan testing system and method |
| 04/09/2013 | DE202013002205U1 Prüfeinrichtung für eine Pumpe, vorzugsweise für eine Löschwasserpumpe Testing device for a pump, preferably for a fire water pump |
| 04/04/2013 | WO2013045184A1 Method for diagnosing the state of a hydrostatic, or positive displacement, machine and hydraulic arrangement comprising a hydrostatic, or positive displacement, machine |
| 04/03/2013 | CN202851351U Gear oil pump with pressure detecting device |
| 04/03/2013 | CN103016319A Self-measuring piezoelectric pump |
| 04/03/2013 | CN103016304A Port closing device for compressor |
| 03/28/2013 | DE102011115650A1 Verfahren zur Diagnose des Zustandes einer hydrostatischen Verdrängermaschine und hydraulische Anordnung mit hydrostatischer Verdrängermaschine A method for diagnosing the condition of a hydrostatic displacement and hydraulic arrangement with hydrostatic displacement |
| 03/28/2013 | DE102011115244A1 Verfahren und System zur Überwachung des Betriebszustands einer Pumpe Method and system for monitoring the operating state of a pump |
| 03/27/2013 | CN202833071U Flow monitoring oil exploitation pump |
| 03/27/2013 | CN202833070U Manual pump combined test device |
| 03/27/2013 | CN202833069U Testing device for oil pump pressure-limiting valve opening pressure |
| 03/27/2013 | CN102996426A Test system for main fuel pump of airplane |
| 03/27/2013 | CN102996425A Detecting mechanism of liquid distribution pump |
| 03/27/2013 | CN102996424A System and method for simulating a gas turbine compressor |
| 03/27/2013 | CN102094803B Multifunctional sucker-rod pump hoisting simulation test system |
| 03/21/2013 | WO2013039734A1 System and method for diagnosing a reciprocating compressor |
| 03/21/2013 | WO2013038085A2 Method for monitoring the volumetric efficiency of an hp pump of a turbomachine hydraulic regulation system |
| 03/21/2013 | US20130071260 System and method for diagnosing a reciprocating compressor |
| 03/21/2013 | CA2848466A1 Method for monitoring the volumetric efficiency of an hp pump of a turbomachine hydraulic regulation system |
| 03/20/2013 | CN202811311U Speed detector of oblique tray type compressor |
| 03/20/2013 | CN202811310U Speed detector of oblique tray type compressor |
| 03/20/2013 | CN202811309U Intelligent detection equipment for air compressor |
| 03/20/2013 | CN202811308U Boiler forced circulation pump experimental facility structure used in thermal power station |
| 03/13/2013 | CN202789479U Desilting pump performance parameter testing device |
| 03/13/2013 | CN202789478U Fixing device applied to reliability test of washing pumps |
| 03/13/2013 | CN202789477U Manually rotating clamping device |
| 03/13/2013 | CN102966526A Diagnosis method for low-frequency fluid vibration excitation failure of compressor based on axial vibration analysis |
| 03/13/2013 | CN102966525A Intelligent testing and monitoring system for photovoltaic pump |
| 03/13/2013 | CN102966524A Low-suction gas superheat performance testing device for refrigeration compressor |
| 03/13/2013 | CN102184414B Method and system for recognizing and judging pump indicator diagram |
| 03/06/2013 | CN202768367U Air compressor pressure sensor installation structure |
| 03/06/2013 | CN202768366U Gel permeation chromatography (GPC) purification concentration system injection pump failure detecting device |
| 03/06/2013 | CN202768365U Power wireless measurement device for dredge pump of dredge |
| 03/06/2013 | CN202768364U Performance testing system for compressors |
| 03/06/2013 | CN102953967A Failure prewarning method for process fan of rolling mill continuous annealing unit |
| 02/28/2013 | CA2849251A1 Electric fuel pump tester and method |
| 02/27/2013 | CN202756222U Compressor and air conditioner |
| 02/20/2013 | CN202746180U Sealing device for hydraulic test of double-shell tank and pump cover |
| 02/20/2013 | CN202746171U Shield electric pump bearing abrasion monitoring device capable of dialing to adjust voltage drop |
| 02/20/2013 | CN202746170U General-purpose tester for air compressor |
| 02/20/2013 | CN202746169U General-purpose tester based on single-chip microcomputer for water pump |
| 02/20/2013 | CN202740528U Infusion pump or infusion controller testing system |
| 02/20/2013 | CN102937086A Method for testing system efficiency of integrated gas reciprocating natural gas compressor set |
| 02/20/2013 | CN102937083A Setting method of normal hydraulic pump of force application system |
| 02/13/2013 | CN202732307U Three-stage fluid dynamic pressure mechanical sealing test device |
| 02/13/2013 | CN202732306U Sewage source heat pump performance testing device |
| 02/13/2013 | CN202732305U Safety monitoring system of mining desilting pump |