Patents for F04B 51 - Testing machines, pumps, or pumping installations (2,128)
02/2006
02/22/2006CN1737524A Automobile automatic gear box key component oil pump experimental bench
02/15/2006EP1625321A1 Diagnostic system and method for a valve, especially a check valve of a positive displacement pump
02/14/2006US6998807 Active sensing and switching device
02/08/2006EP1624185A2 Method and apparatus for determining operating parameters in hydraulic piston engines
02/08/2006CN2756867Y Screw pump test wellhead device
02/08/2006CN1730944A Method for measuring pump characteristic curve by means of pipeline characteristic curve
02/08/2006CN1240942C Non-stop operation condition testing method for beam pumping unit
02/01/2006CN1240108C Service life predication method of rotation machine for apparatus for making semiconductor and semiconductor-making apparatus thereof
01/2006
01/25/2006CN1726345A Method and system for monitoring a reciprocating compressor
01/17/2006US6986646 Electronic trim for a variable delivery pump in a hydraulic system for an engine
01/03/2006US6981402 Speed and fluid flow controller
12/2005
12/28/2005EP1608946A1 Method and device for control of the capacity of a compressor
12/28/2005EP1364194A4 Methods and apparatus for determining the presence or absence of a fluid leak
12/22/2005US20050283282 Method and apparatus for controlling desiccant regeneration in air dryer equipment for a locomotive
12/07/2005CN1230869C Device for predicting service life of rotation machine and method for predicting and determining maintenance period
12/06/2005US6973373 System for measuring change in fluid flow rate within a line
12/01/2005US20050262838 Hydraulic machine, system for monitoring health of hydraulic machine, and method thereof
11/2005
11/29/2005US6970793 Apparatus and method for detecting malfunctions in high-pressure fluid pumps
11/23/2005EP1597482A1 Apparatus and method for detecting malfunctions in high-pressure fluid pumps
11/23/2005CN1699950A Hydraulic machine, system for monitoring health of hydraulic machine, and method thereof
11/17/2005WO2005108744A1 Measuring work performed by a reciprocating machine
11/10/2005US20050249606 Devices and methods for use in assessing a flow condition of a fluid
11/09/2005EP1593846A1 Calibration unit for positive displacement pumps
11/09/2005CN1695009A Fluid dispenser calibration system and method
11/03/2005US20050241370 Pump testing apparatus and method
10/2005
10/27/2005US20050238503 Variable volume, shape memory actuated insulin dispensing pump
10/27/2005US20050235732 Fluid delivery device with autocalibration
10/26/2005CN1687594A Method and equipment for testing performance of feeding oil of fuel pump in car
10/23/2005CA2486126A1 Monitoring system for reciprocating pumps
10/13/2005WO2005094919A1 Actuator system comprising detection means
10/13/2005CA2561251A1 Actuator system comprising detection means
09/2005
09/29/2005DE19927961B4 Verfahren zum Bestimmen der Betriebsparameter Betriebsdrehzahl, Arbeitsdruck und Schwenkwinkel A method for determining the operating parameters operating speed, working pressure and swivel angle
09/29/2005DE102004028643B3 Pump installations monitoring method for cooling agent circulation, involves transmitting condition parameters of pumps to central evaluating computer, and comparing parameters with thresholds to leave desired range for parameters
09/21/2005EP1576289A1 Method and system for monitoring a reciprocating compressor
09/13/2005US6944572 Apparatus for predicting life of rotary machine and equipment using the same
09/13/2005US6941785 Electric fuel pump condition monitor system using electrical signature analysis
09/07/2005EP1092131B1 Determining when fluid has stopped flowing within an element
09/07/2005CN1664370A Method for judging whether key characteristics of a compressor are qualified or not by exhaust pressure comparison
09/07/2005CN1664369A Automatic testing method for pressure fluctuation of lubricating pump of automobile
08/2005
08/30/2005US6937963 Method for avoiding irregular shutoff of production equipment and system for avoiding irregular shutoff
08/24/2005CN1657896A Automatic testing method for universal performance of vehicle engine oil pump
08/24/2005CN1657780A Method for deciding key characteristic of compressor by consumed time of timing exhaust volume
08/24/2005CN1657779A Method for deciding key characteristic of compressor qualified or not by timing exhaust volume
08/23/2005US6931925 Method for determining the current filling level of a liquid in a container
08/18/2005US20050180868 System and method for power pump performance monitoring and analysis
08/09/2005US6928389 Compressor performance calculator
07/2005
07/28/2005US20050165565 Compressor performance approximation using Bin Analysis data
07/20/2005EP1554494A1 Fluid dispenser calibration system and method
07/20/2005EP1131559B1 Apparatus and method for detection of a leak in a pump membrane
07/13/2005EP1552146A2 Fluid delivery device, system and method
07/12/2005US6916159 Device and method employing shape memory alloy
07/07/2005US20050147508 Methods and apparatus for determining the presence or absence of a fluid leak
06/2005
06/30/2005WO2005059365A1 Temperature/pressure protective device
06/30/2005WO2004098012A3 Active sensing and switching device
06/16/2005US20050131654 Compressor performance calculator
06/15/2005EP1540186A1 Condition monitoring of pumps and pump system
06/15/2005CA2450766A1 A method and apparatus for monitoring and diagnosis of well progressing cavity pump systems
05/2005
05/26/2005US20050111989 Problem determination device and control device for fluid device
05/26/2005US20050111988 Pump health monitoring
05/26/2005US20050109099 Pump tester
05/25/2005EP1533522A2 Problem determination device and control device for fluid device
05/24/2005US6898551 System for predicting life of a rotary machine, method for predicting life of a manufacturing apparatus which uses a rotary machine and a manufacturing apparatus
04/2005
04/26/2005US6885972 Method for predicting life span of rotary machine used in manufacturing apparatus and life predicting system
04/19/2005US6882960 System and method for power pump performance monitoring and analysis
04/13/2005EP1522731A2 Pump health monitoring
04/05/2005CA2303793C Apparatus and method for diagnosing the status of specific components in high-pressure fluid pumps
03/2005
03/17/2005US20050058548 Method of controlling fluid flow
03/08/2005US6865513 Method for predicting life of rotary machine and determining repair timing of rotary machine
02/2005
02/22/2005US6859740 Method and system for detecting cavitation in a pump
02/10/2005DE10331851A1 Controllable swash plate compressor for a motor vehicle's air conditioning has a swash plate in a crank chamber to be adjusted for angle on a drive shaft
02/03/2005US20050025631 System and method for monitoring the mechanical condition of a reciprocating compressor
02/01/2005US6848888 Sensor for a variable displacement pump
01/2005
01/05/2005EP1493981A2 Compressor diagnostic system
01/05/2005EP1493980A2 Compressor diagnostic system
12/2004
12/23/2004US20040258533 Method of managing time, at which maintenance in a gas compressor multiple system should be carried out
12/23/2004DE10323855A1 Axial compressor for automotive air conditioning system has drive shaft and pulley wheel incorporating permanent magnet in vicinity of torque sensor
12/22/2004CN1181328C Refrigeration compressor performance determination device
12/16/2004US20040250838 Wafer cleaning apparatus and method of anticipating malfunction of pump
12/09/2004DE19546741B4 Meßadapter für Klimakompressoren Test adapter for air compressors
12/09/2004DE10322194A1 Diagnosesystem und -verfahren für ein Ventil, insbesondere ein Rückschlagventil einer Verdrängerpumpe The diagnostic system and method for a valve, especially a check valve of a positive displacement pump
12/07/2004US6829542 Pump and method for facilitating maintenance and adjusting operation of said pump
12/01/2004CN1550943A Method of managing time, at which maintenance in system of a plurality of gas compressors should be carried out
11/2004
11/25/2004WO2004102052A1 Diagnostic system and method for a valve, especially a check valve of a positive displacement pump
11/25/2004DE202004014254U1 Device for monitoring the oil level in a refrigeration compressor comprises a sensor arranged in the oil and emitting a temperature-dependent signal, heating elements, and an evaluation device monitoring the heating/cooling of the sensor
11/24/2004EP1479912A1 Cabelless device for operational monitoring of a machine
11/23/2004US6823289 Pump trouble diagnosing device for hydraulic drive device and display device of the diagnosing device
11/18/2004US20040230384 Electric fuel pump condition monitor system using electrical signature analysis
11/18/2004US20040226346 Early fault detection in pump valves
11/17/2004EP1477678A2 Early detection of failures in pump valves
11/17/2004EP1477677A1 Method of managing time, at which maintenance in system of a plurality of gas compressors should be carried out
11/11/2004WO2004098012A2 Active sensing and switching device
10/2004
10/28/2004US20040213677 Monitoring system for reciprocating pumps
10/28/2004US20040213676 Active sensing and switching device
10/26/2004US6807855 Methods for testing fluid compressors
10/07/2004DE10322220B3 Fault monitoring and automatic early fault detection method for valves, especially for an oscillating displacement pump, whereby the pump noise level is monitored over time for any change in comparison with a reference signal
09/2004
09/30/2004WO2004083801A1 Method and device for control of the capacity of a compressor
09/30/2004US20040193384 Method and apparatus for measuring work performed by a compressor
09/30/2004US20040191099 Reverse-ported pump
09/28/2004CA2336305C Determining when fluid has stopped flowing within an element
09/23/2004DE102004008182A1 Begrenzervorrichtung für Verstellkompressor Limiter for variable displacement
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