| Patents for F04B 51 - Testing machines, pumps, or pumping installations (2,128) |
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| 04/06/2011 | CN102003381A Device and method for monitoring stroke of pumping cylinder and optimal arrangement method of cushion hole |
| 04/06/2011 | CN102003380A Mechanical drive train for testing full scale compressor rigs and gas turbines |
| 04/06/2011 | CN102003379A Logic mutual inspection system of diaphragm pump hydraulic system |
| 03/31/2011 | US20110077782 Blood pump flow rate estimation device |
| 03/30/2011 | EP2300713A1 Method and device for conveying compressed gas |
| 03/30/2011 | CN201778997U Load-rate measurement device of air compressor |
| 03/30/2011 | CN201778996U Shared air intake testing device in laboratory |
| 03/30/2011 | CN201778995U Simulative deep well testing pipeline utilizing submersible pump |
| 03/30/2011 | CN201778994U Detecting circuit for avoiding misjudgment of normal running of fan |
| 03/30/2011 | CN201778993U Non-contact intelligent liquid flow instrument |
| 03/30/2011 | CN201778992U Ground test bench of air compressor |
| 03/30/2011 | CN101603527B Emulsion pump testing system |
| 03/30/2011 | CN101581294B Condensation heat-recovering type performance test system for refrigeration compressors |
| 03/29/2011 | US7917334 Compressor performance calculator |
| 03/29/2011 | US7913496 Apparatus and method for pumping a cryogenic fluid from a storage vessel and diagnosing cryogenic pump performance |
| 03/29/2011 | CA2714725A1 System for acquiring, measuring and checking the operating parameters of a reciprocating fluid machine |
| 03/23/2011 | CN201771745U Pump oil seal pressing and positive and negative detecting device |
| 03/23/2011 | CN201771740U Fan and fault detection circuit thereof |
| 03/23/2011 | CN201771726U Pressure measurement buffer |
| 03/23/2011 | CN101988493A Test bench rack with rapid mounting pump |
| 03/16/2011 | CN201763590U Closed type test device suitable for various oil pumps |
| 03/16/2011 | CN201763589U High-efficiency dynamic correcting and energy-saving system for working condition point of fluid circulating pump |
| 03/16/2011 | CN201763581U Hollow-plunger pump |
| 03/16/2011 | CN101985927A Data processing method of chip for fault detection and diagnosis in multistage reciprocating compressor |
| 03/09/2011 | CN101984256A Load increasing and reducing device of air compressor |
| 03/02/2011 | EP2290238A1 Plunger pump actuated by a shape memory element |
| 02/24/2011 | WO2010114737A3 System and method for determining health indicators for impellers |
| 02/23/2011 | CN101979878A Method for testing fluid pumping capacity of oil seal |
| 02/22/2011 | US7891237 Method for estimating pump efficiency |
| 02/16/2011 | EP2284462A2 Compressor diagnostic system |
| 02/16/2011 | CN201747583U Carbon-dioxide gas compressor test device satisfying test on cooler refrigerant side |
| 02/16/2011 | CN201747582U Testboard for cooling fan of civil aircraft |
| 02/16/2011 | CN201747581U Gas cooler for a volumetric refrigerant compressor tester |
| 02/15/2011 | US7890200 Process-related systems and methods |
| 02/09/2011 | CN201739157U Subway central air conditioner blower detecting system based on information fusion technology |
| 02/09/2011 | CN201739156U Fan failure electronic detection circuit |
| 02/09/2011 | CN201739155U Connecting pipe device of pumping pressure transmitter |
| 02/09/2011 | CN201739154U Novel Intelligent vacuum water filling detector of centrifugal water pump |
| 02/09/2011 | CN201739153U On-line testing device for operating vibration of fuel pump |
| 02/09/2011 | CN101968051A Liquid nitrogen pump equipment loading test and testing device and test and testing method thereof |
| 02/09/2011 | CN101968050A Driving device for salt fog test of compressor |
| 02/02/2011 | CN101963150A Fan type detection and speed regulation system |
| 02/02/2011 | CN101275551B Fluidic cassette detection mechanism and method for precisely positioning and assuring the fluidic cassette to fix to the fluid assembly |
| 01/26/2011 | CN201723432U Fan temperature rise test system |
| 01/26/2011 | CN101750226B Phase-change-free refrigeration compressor thermal property test method and test device |
| 01/20/2011 | WO2011008874A1 System and method for determining pump pressure based on motor current |
| 01/20/2011 | WO2011007306A2 Pump with rotor position measurement system |
| 01/20/2011 | WO2011006411A1 Dc fan fault detecting device and method with alarm |
| 01/19/2011 | EP2275678A1 Pump with rotor position measurement system |
| 01/19/2011 | CN101949382A Intelligent centrifugal pump cavitation fault detector |
| 01/12/2011 | CN201705647U Comprehensive tester of measurement and diagnosis of screw pump well |
| 01/12/2011 | CN201705646U Screw pump well variable-parameter metering diagnosis device |
| 01/05/2011 | CN201696280U Instrument for detecting working condition of magnetic suspension oil well pump |
| 01/05/2011 | CN201696252U Skid-mounted high pressure testing pump |
| 01/05/2011 | CN101936289A Device and method for emergency stop protection and periodic test of steam main feed pump |
| 01/05/2011 | CN101936288A Apparatus and method for testing a compressor |
| 01/05/2011 | CN101936287A Circuit and method for detecting fan faults |
| 01/05/2011 | CN101650239B Underground seal type load sensor |
| 01/05/2011 | CN101576075B Device and method for measuring built-in low-temperature pumping speed |
| 01/04/2011 | US7861582 Flow rate estimation method of blood pump |
| 01/01/2011 | CA2708843A1 System to measure vibrations using fiber optic sensors |
| 12/29/2010 | WO2010149738A1 Method for predicting a rotation fault in the rotor of a vacuum pump, and associated pumping device |
| 12/29/2010 | CN201687699U Portable pump station unit state detection and data processing device |
| 12/29/2010 | CN101930231A Test device of fuel controller |
| 12/29/2010 | CN101929457A Mini-fan performance test system based on human-computer interaction interface |
| 12/29/2010 | CN101608615B System and method for automatically measuring property of vapor stream vacuum pump |
| 12/22/2010 | CN1821578B Compressor diagnostic system |
| 12/22/2010 | CN101922447A Multi-head hydraulic pump testing device |
| 12/22/2010 | CN101922446A Gas cooler for positive displacement refrigerant compressor test unit |
| 12/22/2010 | CN101430358B Head-machine first water pump behavior full-group start test method for pump storage plant |
| 12/16/2010 | WO2010144782A1 Method and apparatus for predicting maintenance needs of a pump based at least partly on pump performance analysis |
| 12/16/2010 | CA2765155A1 Method and apparatus for predicting maintenance needs of a pump based at least partly on pump performance analysis |
| 12/15/2010 | CN201673062U Mist spray property comprehensive test stand |
| 12/15/2010 | CN201671805U Tangential fan performance testing device |
| 12/15/2010 | CN101918715A A method and apparatus for testing the piston of an injection pump |
| 12/15/2010 | CN101915656A Hydraulic test and detection device |
| 12/15/2010 | CN101915236A Carbon-dioxide gas compressor test device meeting cooler refrigerant side test requirement |
| 12/15/2010 | CN101915235A Method and device thereof for overhauling, pressurizing and detecting air compressor chillers |
| 12/15/2010 | CN101915234A Method for diagnosing compressor-associated failure based on Bayesian network |
| 12/15/2010 | CN101915233A Overhauling test method special for locomotive screw air compressor |
| 12/15/2010 | CN101581295B Airborne hydraulic pump source fault diagnosis system based on DSP |
| 12/15/2010 | CN101185042B Fluid delivery device with autocalibration |
| 12/09/2010 | US20100312177 Fluid Delivery Device With Autocalibration |
| 12/08/2010 | CN201666248U Natural gas compressor state detection and failure predication system |
| 12/08/2010 | CN101907089A Fault diagnosis method of compressor shafting based on three-dimensional space axle center orbit |
| 12/08/2010 | CN101907088A Fault diagnosis method based on one-class support vector machines |
| 12/03/2010 | CA2706273A1 Process for detecting scale formation in a beverage preparation machine |
| 12/02/2010 | WO2010136746A1 Real time pump monitoring |
| 12/01/2010 | CN101487466B On-line soft measuring method for compression ratio and polytropic efficiency of centrifugal compressor |
| 11/24/2010 | CN201650703U Plane hydraulic power testing equipment |
| 11/24/2010 | CN201650702U Test-bed for oil supply pump of forklift |
| 11/17/2010 | CN201635986U Seal performance test bench for water pump |
| 11/17/2010 | CN201635985U Spinning pump test bench |
| 11/17/2010 | CN201635984U Single-ported spinning pump test bed |
| 11/17/2010 | CN201635983U Trial-run device of compressor |
| 11/10/2010 | CN201627747U Bearing abrasion detection device for magnetic force transmission pump |
| 11/10/2010 | CN201627743U 风扇运转电路及风扇系统 Fan running circuit and fan system |
| 11/10/2010 | CN201627706U Testing device for marine pump |
| 11/10/2010 | CN101881269A 多级压缩机故障检测和保护 Multi-stage compressor fault detection and protection |
| 11/03/2010 | CN201621056U Main-fan safe-running online monitoring system |