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)
05/2002
05/30/2002US20020064462 Apparatus and method for controlling operation of linear compressor using pattern recognition
05/30/2002US20020064461 Circuit for driving linear compressor
05/30/2002US20020062652 Apparatus and method for controlling linear compressor
05/29/2002EP1209364A2 Fluid control system with autonomously controlled pump
05/29/2002EP1209361A1 Internal intermediate pressure 2-stage compression type rotary compressor
05/29/2002EP1209358A1 Hydraulic power system
05/29/2002DE10154851A1 Device for controlling a compressor with variable piston displacement comprises a regulator performing a limit control to limit the pressure in the high pressure zone
05/29/2002DE10141178A1 Hydraulic pump has off-center cylinder rollers around the drive shaft, working with push rods of pistons at the pump units, to give a stepless power output setting from zero to maximum without couplings
05/28/2002US6394761 Capacity controller of capacity variable compressor
05/28/2002US6394758 Apparatus and method of controlling air compressor
05/28/2002US6394206 Vehicle generator control
05/28/2002US6394120 Method and control system for controlling multiple compressors
05/28/2002US6393852 Adaptive control for a refrigeration system using pulse width modulated duty cycle scroll compressor
05/28/2002US6393849 Air-conditioning apparatus and control procedure for variable displacement compressor
05/23/2002WO2002040869A1 Centrifugal hydraulic pump
05/23/2002WO2002040868A1 Centrifugally controlled hydraulic pump
05/23/2002WO2002040864A1 Piston pump
05/23/2002US20020061255 Fluid delivery mechanism
05/23/2002US20020061254 Oscillation-type compressor
05/22/2002EP1207304A1 Pump control method and pump control device
05/22/2002EP1207303A2 Integrated instrument assembly for compressors
05/22/2002EP1207302A2 Control apparatus for variable displacement compressor
05/22/2002EP1206640A1 Axial-piston drive system with a continuously adjustable piston stroke
05/22/2002EP0883744B1 Pump
05/22/2002CN1350618A A reciprocating compressor with a linear motor
05/22/2002CN1085305C Scroll-type compressor with variable displacement mechanism
05/21/2002US6393338 Apparatus and control method for accurate rotary peristaltic pump filling
05/21/2002US6390784 Solenoid protector for a variable displacement compressor
05/21/2002US6390779 Intelligent air compressor operation
05/21/2002US6390072 Pump assembly
05/21/2002US6389824 Controller for variable displacement compressor
05/21/2002US6389823 Two stage reciprocating compressors and associated HVAC system and methods
05/21/2002US6389809 Volume control valve of variable displacement hydraulic rotating machine
05/16/2002WO2002038941A1 Accumulator distribution type fuel injection pump
05/16/2002WO2002038251A1 Method for regulating a compressor installation with a dryer and compressor installation used therewith
05/16/2002WO2002038204A2 Occlusion detection method and system for ambulatory drug infusion pump
05/16/2002US20020056366 Method and apparatus for maintaining the correct oil overflow quantity in diaphragm compressors
05/16/2002US20020056365 Variable rate pump
05/16/2002DE10153586A1 Hybrid vehicle drive cooling circuit has temperature sensors on engine cylinder head used to regulate coolant flow pump
05/16/2002CA2394026A1 Occlusion detection method and system for ambulatory drug infusion pump
05/15/2002EP1205699A1 Unloading valve
05/15/2002EP1205206A2 Exhalation valve
05/15/2002EP1205203A2 Exhalation flow transducer
05/15/2002EP0974008B1 Injection system, pressure valve, flow control valve, and method for setting the fuel pressure
05/15/2002CN2491601Y Chain belt pumping unit
05/14/2002US6389349 Method and apparatus for activating a pump of a braking system as a function of the pressure gradient
05/14/2002US6386834 Control valve of displacement variable compressor
05/14/2002US6386231 Valve assembly which simulates a hand pump
05/14/2002US6386170 Oil supplying apparatus and method of controlling the same
05/14/2002US6385982 Air conditioning apparatus
05/11/2002CA2360702A1 Electric coolant pump control strategy for hybrid electric vehicle
05/10/2002WO2002036275A1 High-pressure cleaning device
05/09/2002US20020053338 High-pressure fuel pump with variable delivery quantity
05/08/2002EP0916026B1 Process for regulating a unit or a frequency converter
05/08/2002EP0853728B1 Method and device for an intake valve of plate-like construction
05/08/2002DE10053248A1 Hochdruckreinigungsgerät High pressure cleaning equipment
05/08/2002DE10052629A1 Kraftstoffhochdruckpumpe mit veränderlicher Fördermenge High-pressure fuel pump with variable capacity
05/07/2002US6384558 Driving device for motor-driven compressor
05/07/2002US6382926 Control valve in variable displacement compressor
05/07/2002US6382925 Variable displacement pump
05/07/2002US6382923 Pump chamber having at least one spacer for inhibiting the pumping of a gas
05/07/2002US6381947 Fuel injection for a staged gas turbine combustion chamber
05/02/2002US20020051710 Apparatus and method for controlling operation of reciprocating compressor
05/02/2002US20020051708 Multistage blowdown valve for a compressor system
05/02/2002EP1201913A2 Variable displacement high pressure fuel pump
05/02/2002EP1200743A1 Hydraulic steueranordnung zur bedarfstromgeregelten (load-sensing-geregelten) druckmittelversorgung von vorzugsweise mehreren hydraulischen verbrauchern
05/02/2002EP1200734A1 Piston assembly
05/02/2002DE10149570A1 Vorrichtung und Verfahren zur Steuerung eines Auslaßdrukkes für eine Hydraulikpumpe mit variabler Verdrängung Apparatus and method for controlling a Auslaßdrukkes for a hydraulic variable displacement pump
05/02/2002DE10051752A1 Verdichter für Kältemittel in einem Kühlkreislauf Compressor for refrigerant in a refrigeration cycle
05/02/2002DE10047045A1 Control device for attainment of specified output pressure of magnet pump has displacement sensor determining displacement of its armature assigned to pressure magnet and magnet coil is acted upon by control device
05/01/2002CN1346937A Device and method for controlling reciprocating compressor operation
05/01/2002CN1083943C Electronic cam compensation of pressure change of servo controlled pumps
04/2002
04/30/2002USRE37674 Recycling transportable pressure washing system
04/30/2002US6379123 Capacity control scroll compressor
04/30/2002US6379122 System and method for automatic thermal protection of a fluid compressing system
04/30/2002US6379119 Hybrid electric and hydraulic actuation system
04/25/2002WO2002033260A1 Compressor for a refrigerating agent in a cooling circuit
04/25/2002WO2002033257A1 Axial-piston pump and a hydraulic transmission for a transport means provided with said axial-piston pump
04/24/2002EP1198871A1 Malfunction detection of a machine driven by an electric motor
04/24/2002EP0781380B1 System for increasing flow uniformity
04/24/2002CN2487889Y Alarm for indicating draining losing effectiveness of air compressing system
04/24/2002CN1083562C Refrigerating circulation compressor controller for
04/23/2002US6375433 Method and apparatus for controlling pump discharge pressure of a variable displacement hydraulic pump
04/23/2002US6375432 Pipeline air pocket detection system
04/23/2002US6375431 Evacuating apparatus
04/23/2002US6374722 Apparatus and method for controlling a discharge pressure of a variable displacement hydraulic pump
04/23/2002US6374602 Control system for a hydraulic transformer having variable pressure input
04/18/2002US20020045861 Syringe pumps
04/18/2002US20020043639 Control valve for variable capacity compressor
04/18/2002DE19549566C2 Piston-type compressor with swash plate fixed at drive shaft for common rotation
04/18/2002DE10147972A1 Hydraulic neutral cold start control valve has casing with pushrod boring and crossing signal pressure through passage
04/17/2002EP1197660A2 Control valve for variable capacity compressor
04/17/2002CN2486748Y Water lacking monitor for air compressor
04/17/2002CN2486747Y Automatic water draining device
04/17/2002CN1344866A Screw compressor and its running method
04/16/2002US6374193 Method and device for monitoring the functioning of a compressor
04/16/2002US6373677 Control circuit for controlling a current in an electromagnetic coil with a duty ratio which is adjusted in response to variation of a power source voltage
04/16/2002US6371734 Control valve for variable displacement compressor
04/16/2002US6371733 Pump with hydraulic load sensor and controller
04/16/2002US6371731 Multistage blowdown valve for a compressor system