Patents
Patents for F04B 49 - Control of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for in, or of interest apart from, groups (22,036)
06/1998
06/09/1998US5762795 Dual stage pump and filter system with control valve between pump stages
06/09/1998US5762476 Variable capacity single-headed piston refrigement compressor
06/09/1998US5762475 Automatic solenoid control valve calibration
06/09/1998US5762159 Power steering apparatus
06/04/1998WO1998023858A1 Fuel injection system
06/04/1998DE19752397A1 Power assisted steering arrangement for motor vehicle
06/04/1998DE19751274A1 Fluid high-pressure source e.g. for vehicle ABS braking system
06/03/1998EP0845642A2 A refrigeration system employing a compressor for single or multi-stage operation with capacity control
06/03/1998EP0845593A1 Slant plate type compressor with variable capacity control mechanism
06/02/1998US5761627 For a vehicle
06/02/1998US5759148 For driving a medical device
06/02/1998US5759013 Oil pump apparatus
06/02/1998US5758499 Hydraulic control system
05/1998
05/28/1998WO1998022717A1 Hydraulic drive apparatus
05/28/1998WO1998022716A1 Hydraulic drive apparatus
05/28/1998DE19751736A1 Variable displacement compressor for vehicle air conditioning unit
05/28/1998DE19648690A1 Kraftstoffeinspritzsystem The fuel injection system
05/28/1998DE19647967A1 Pump esp. motor driven centrifugal pump with sensor determining pressure differences
05/27/1998EP0844396A1 Process for controlling the operation of a plant for pressurized air with several compressors
05/27/1998EP0844392A2 Variable displacement compressor
05/27/1998EP0843563A1 Systems and methods for cassette identification for drug pumps
05/27/1998EP0795086B1 Vane pump
05/27/1998EP0720693B1 Flow-metered pumping with load compensation system and method
05/27/1998CN2282610Y Structure of control valve for compressor
05/26/1998US5757667 Solid state pressure detector for beverage dispensers
05/26/1998US5755561 Piston pumping system delivering fluids with a substantially constant flow rate
05/26/1998US5755560 Pump and combination pump and trap with snap-over mechanism and double-seal outlet valve
05/26/1998US5755559 Apparatus and method for pumping supercritical fluid and measuring flow thereof
05/26/1998US5755251 Full flow pressure trap unloader valve
05/22/1998WO1998021094A1 Suction device
05/20/1998EP0843098A1 Scroll compressor
05/20/1998DE19646410A1 Absaugvorrichtung Suction
05/20/1998CN2282081Y Automatic controller for electromagnetic slip speed regulation
05/20/1998CN2282080Y Antomatic protector for liquid pump
05/20/1998CN1182194A Variable capacity compressor
05/19/1998US5752427 Adjustable hydro-static radial piston machine
05/13/1998EP0840852A1 Fluid pumping apparatus
05/13/1998EP0840851A1 Pump
05/13/1998CN2281428Y Improved structure of inductive pump protector
05/13/1998CN2281427Y Self controlled water pump
05/13/1998CN1038378C Single-phase induction motor, its control method and use in refrigerator
05/12/1998US5750027 Apparatus and method for supercritical fluid extraction or supercritical fluid chromatography
05/12/1998US5749710 Refrigerant compressor with rotation detecting means
05/07/1998WO1998019069A1 Power- and moment-regulating system for a plurality of hydraulic pumps
05/07/1998WO1998019068A1 System and method for pump control and fault detection
05/06/1998EP0840014A1 Pumping set with a circuit enabling the saving of energy from the emergency power source
05/06/1998EP0840009A2 High pressure pump
05/06/1998EP0840008A1 Control device for a variable displacement hydraulic pump
05/06/1998EP0757587A4 Mixing apparatus for microflow gradient pumping
05/06/1998EP0682769B1 Starting arrangement for small refrigeration systems
05/06/1998CN2280782Y Unloading protecting mechanism for chain oil-sucking machine
05/05/1998US5748077 Hydraulic leak detection system
05/05/1998US5746721 Pulsed lavage pump with integral power source and variable flow control
04/1998
04/30/1998DE19747620A1 Tandem pump device for preventing cavitation
04/30/1998DE19644961A1 Verfahren zum Steuern des Motor-Pumpe-Systems einer hydraulischen Baumaschine A method for controlling the motor-pump system of a hydraulic construction machine
04/29/1998EP0837988A1 Dosing pump
04/28/1998US5745378 Parameter input for drug delivery pump
04/28/1998US5743716 Reversible pump controller
04/28/1998US5743089 Hydraulic control system
04/23/1998DE19654084C1 Method of increasing dosing accuracy of liquid dosing pump driven by asynchronous motor with eccentric gear
04/22/1998CN1179512A Scroll-type compressor with variable displacement mechanism
04/21/1998US5742147 Dc based powering and charging circuit for compressor systems and other mechanical devices
04/21/1998US5741122 Variable displacement compressor having a spool with a coating layer
04/21/1998CA2131149C Compressor pressure relief assembly
04/16/1998WO1998015788A1 A method of operating a refrigeration system and a control valve
04/16/1998DE19705672A1 Antrieb für eine Vakuumpumpe Drive for a vacuum pump
04/15/1998EP0836005A1 Reclamation system for a hydraulic pump system
04/15/1998EP0717817B1 Hydraulic control valve block
04/14/1998US5738498 Apparatus and method for thermoelectric cooling of an extraction fluid pump
04/14/1998US5738497 Apparatus and method for controlling a rotary screw compressor
04/14/1998US5737994 On a motor driven piston pump
04/09/1998WO1998015022A1 Process for supplying with air a polymer electrolyte membrane (pem) fuel cell system
04/09/1998CA2217302A1 Reclamation system for a hydraulic pump system
04/08/1998EP0834029A1 Hydraulic actuation system
04/08/1998EP0681656B1 Process for regulating the capacity of lubricant pumps and lubricant pump therefor
04/07/1998US5735675 Combination compressor unloader
04/01/1998EP0833059A2 Gas compression method
04/01/1998EP0832389A1 Automatic solenoid control valve calibration
04/01/1998EP0832361A1 Vane cell pump
04/01/1998EP0832360A1 Variable displacement electro-hydraulic pump
04/01/1998EP0832011A1 Hydraulic leak detection system
04/01/1998EP0832001A1 Motor vehicle air conditioning control system
03/1998
03/31/1998CA2113043C Scroll compressor unloader valve
03/26/1998DE19638837A1 Two-unit pressure control system
03/25/1998EP0831231A2 Gear pump
03/25/1998EP0830902A2 Pump unit (paint system)
03/25/1998CN1177424A Electric hydraulic hybrid motor, control device and control method for the motor
03/25/1998CN1177423A Electric hydaulic hybrid motor
03/19/1998WO1998011348A1 Reciprocating piston pump with bleed passages
03/18/1998EP0829945A1 Electric hydraulic hybrid motor, control device and control method for the same motor
03/18/1998EP0829792A1 Water distributing installation controllers
03/18/1998EP0829266A2 Automated peritoneal dialysis system
03/18/1998EP0829220A2 Method for controlling the amount of water filled in a dishwashing machine
03/18/1998EP0828944A1 Compressed air maintenance device
03/18/1998EP0746684A4 Soft-start pump control system
03/18/1998EP0701660A4 Motor controlled constant flow pump
03/18/1998CN2276570Y Inertial energy-saving motor
03/18/1998CN1176680A Gas actuated slide valve in a screw compressor
03/18/1998CN1176679A Method and control system of controlling a fluid compression system
03/11/1998CN1175676A Method for controlling water supply of automatic ice maker in refrigerator and water supply device employing the same