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Patent Searching and Data


Matches 451 - 500 out of 6,915

Document Document Title
WO/2003/095832A1
An electrical power supply for powering electrical pump (12) instrumentation (73) and process control equipment (77) associated with a pump (12) having a rotating member. The power supply includes an electrical current generator (42) dri...  
WO2001005349A8
A control circuit for use with a spa system includes a pressure sensor (70) which generates a signal representative of the pressure in the system. A microcontroller (68) is coupled to receive the signal from the sensor and is configured ...  
WO/2003/082790A1
A transporting method and a transporting facility for an easily polymerizable material which are prevented from the stagnation of an easily polymerizale material at a liquid feed pump and from the resulting generation and adhesion of sol...  
WO/2003/083312A1
In a centrifugal pump (10) for liquids comprising an impeller casing (50) inside which a centrifugal impeller (40) is rotatably mounted including a hub (42) from which a plurality or curved blades (44) delimited by two curved edges (44a,...  
WO/2003/081050A1
A self-regulating water pump has a volute (4), an impeller (5) rotating about a respective longitudinal axis (3), and at least one substantially annular elastic member (12) located between the impeller (5) and the volute (4) and substant...  
WO/2003/078839A2
A hydraulic pump comprises one or more outlets, one or more pressure sensors and&sol or one or more flow sensors linked to or incorporated in a pump's control means which is adapted to compare the or each measurement obtained from the or...  
WO/2003/071109A1
The invention advantageously relates to an electric coolant pump (1), particularly for the coolant circuit of motor vehicle internal combustion engines, comprising a coolant pump motor, which drives a pump impeller (6) via a pump shaft (...  
WO/2003/071133A1
An arrangement (10) for controlling the liquid level in a basin (60) by selectively actuating a pump (64) has an environmentally-sealed enclosure (22) with an internal volume subject to thermal and pressure effects. A first (14) and a se...  
WO/2003/070299A1
An extracardiac pumping for supplementing the circulation of blood, including the cardiac output, in a patient without any component thereof being connected to the patient's heart, and methods of using same are disclosed. One embodiment ...  
WO/2003/062643A1
A wastewater pumping system includes a centrifugal pump operatively connected to an electric motor via a coupling. The speed of the electric motor is automatically varied responsive to the head or load realized by the pump of the system ...  
WO/2003/054365A1
The subject of the invention is a pump/valve assembly and a cooling circuit containing such an assembly. An assembly forming part of a circuit for circulating a liquid fluid and comprising a pump and at least one valve unit with proporti...  
WO/2003/048584A1
The invention relates to a submersible pump assembly with a float switch, whereby fastening devices, which are provided for said float switch or for the cable leading thereto, extend the application possibilities of said assembly.  
WO2002086322A3
A fluid controlled pumping system includes a pumping unit (12) disposed within a fluid cavity (13). The pumping unit (12) includes a passage (60) extending to a suction end of the pumping unit. The system also includes a pressure source ...  
WO/2003/029656A1
A pump controller is disclosed for controlling a pump for a fluid medium such as water. The pump controller includes a metal substrate (11) adapted to have a first side thereof exposed to the fluid medium and an insulating medium applied...  
WO2002088547A3
The invention relates to a method for controlling an assist pump for fluid delivery systems with pulsatile pressure. If, for example, a heart-assist pump is operated with a constant rotational speed, the blood is continually delivered th...  
WO/2003/005875A1
The invention relates to a dishwasher (2) comprising spraying arms and a circulating pump (1), which has an impeller, an intake fitting (3) and at least one pressure joint on the pump casing. The dishwasher also comprises a water branchi...  
WO/2003/004840A1
An internal combustion engine coolant pump (12) having an inlet (15) for receiving coolant from the cooling circuit (31, 32) and an outlet (16) directing coolant to an engine (11) provided with a thermostat (18). The outlet (16) has a fl...  
WO/2003/003545A1
A meter unit (45) is provided with a signal processing circuit (26) for processing the output signal from detecting sections (24, 25), and a rectifying circuit (30) of a DC low voltage power supply section (28) for driving the signal pro...  
WO2002084117A3
The invention relates to a method and a device which guarantees a constant output variable, e.g. the displaced volume of lubricating oil in a feed pump (3) which is actuated by a speed variable drive device (4), e.g. an internal combusti...  
WO/2003/002875A1
A membrane seal for a multi-part fluid pump housing discharging windshield washer fluid from reservoir includes a one-piece, rigid carrier and a resilient seal member molded onto the rigid member to seal two pump housing parts. Resilient...  
WO/2002/091554A1
A torque-generating apparatus comprises a first assembly (10, 25) including a generally cylindrical member of magnetically soft material and having a longitudinal axis and a second assembly (2) arranged coaxially within the first assembl...  
WO/2002/091553A1
A combination of a torque-generating apparatus with an alternator/generator. The torque-generating apparatus comprises a first assembly (10, 25) including a generally cylindrical member of magnetically soft material and having a longitud...  
WO/2002/088547A2
The invention relates to a method for controlling an assist pump for fluid delivery systems with pulsatile pressure. If, for example, a heart-assist pump is operated with a constant rotational speed, the blood is continually delivered th...  
WO/2002/086318A2
A method and system to detect cavitation in a pump (100) and to determine the remaining life of a mechanical seal. A sensor (190) is included within the mechanical seal section (120) of the pump (100). Dynamic pressure changes occuring w...  
WO/2002/086322A2
A fluid controlled pumping system includes a pumping unit (12) disposed within a fluid cavity (13). The pumping unit (12) includes a passage (60) extending to a suction end of the pumping unit. The system also includes a pressure source ...  
WO/2002/084117A2
The invention relates to a method and a device which guarantees a constant output variable, e.g. the displaced volume of lubricating oil in a feed pump (3) which is actuated by a speed variable drive device (4), e.g. an internal combusti...  
WO2002045775A8  
WO/2002/066835A1
The present invention relates to a method for monitoring a pump and a pump using the method. In order to precisely monitor the operation of a pump without using a flow sensor, according to the present invention, in a pre-programmed proce...  
WO2001005349A9
A control circuit for use with a spa system includes a pressure sensor (70) which generates a signal representative of the pressure in the system. A microcontroller (68) is coupled to receive the signal from the sensor and is configured ...  
WO/2002/053915A1
A safety device (50) incorporating a sensor (120), analyser/control (130) and relay (150) is wired to a vacuum breaker (170) and other components of a fluid circulation system. The safety device (50) is used in a fluid system with a pump...  
WO/2002/045775A2
The invention relates to an intracardiac rotating pump (10) which is provided with a differential pressure sensor (18) for supporting a pumping heart. The differential pressure sensor measures the differential pressure between the aorta ...  
WO/2002/044626A1
The present invention relates to a multi-stage pressure distribution and pressure regulation system for heating and air conditioning piping units, a pressure control method of the same, and a very high-rise building utilizing the same, w...  
WO2001005349A3
A control circuit for use with a spa system includes a pressure sensor (70) which generates a signal representative of the pressure in the system. A microcontroller (68) is coupled to receive the signal from the sensor and is configured ...  
WO/2002/004816A1
A monodirectional impeller for centrifugal electric pumps having a permanent-magnet synchronous motor, having vanes which are deformable at least along part of their extension so as to change their curvature, when loaded, in one directio...  
WO2000017521A9
A liquid pump (10) and controller with separate pump activation and deactivation mechanisms that are both closed detector devices is provided. The pump activation mechanism includes a float device (40) that activates a pump motor (12) wh...  
WO/2001/094786A1
A submersible circulation system comprising a motor (12), a first pump (38), a second pump (44) and a casing (62). The motor includes a shaft. The first and second pumps each have an impeller driven by the shaft of the motor. The casing ...  
WO/2001/086831A1
A three phase power cable is employed to transmit data encoded in a phase-to-phase manner within a high frequency carrier signal transmitted simultaneously with power transmitted from surface equipment to downhole components. The high fr...  
WO/2001/079703A1
A variable-capacity water pump includes a housing having an impeller mounted on a rotatable shaft. The impeller includes a plurality of vanes pivotally coupled between upper and lower shroud and operatively coupled to a pitch plate. As t...  
WO/2001/061429A1
The object of this invention is to provide a method and system for automatically controlling water level in a storage tank through a wireless control process. This system includes an intake chamber (24), an intake pumping means (22) set ...  
WO/2001/055601A1
A centrifugal pump (10) having a pump housing (40) that defines a substantially axial inlet port (32), a substantially radial inlet port (34) and an outlet port (30). An impeller (42) is rotatable within an impeller chamber (58) defined ...  
WO/2001/055597A1
A variable flow water pump includes a housing having an impeller mounted on a rotatable shaft. The pump impeller has a plurality of vanes fixed to a back plate or flange. A circumferentially surrounding shroud is axially movable within t...  
WO/2001/051816A1
A method for calculating one of the characteristic curves of a centrifugal fluid machine, such as a Q-H characteristic curve, a Q-E characteristic curve, and a Q-NPSH characteristic curve by using a computer. By the method, a characteris...  
WO/2001/051815A1
A device for selecting a centrifugal fluid machine can easily select a centrifugal fluid machine having a desired performance from multiple centrifugal fluid machines ranked according to priority. The device (1) comprises an input unit (...  
WO2000020738A9
A gas turbine engine has a turbine (12) mounted downstream of a compressor (16) and a compressor turbine (18) mounted downstream of the turbine (12) for driving the compressor (16). The compressor turbine (18) has a rotor disk that is me...  
WO/2001/042653A1
An apparatus and method for a centrifugal pump (10) for pumping sensitive biological fluids which includes (i) an integral impeller and rotor (21) which is entirely supported and rotated magnetically by electromagnets (52, 54), (ii) a pu...  
WO/2001/034982A1
A system for controlling the working conditions for mechanical pumps supplying associated devices with pressure fluid via a pipe system. A valve means (25) is placed between at least one of the pumps and an appurtenant device supplied by...  
WO/2001/021959A1
An autonomous inverter driving hydraulic unit having no need to have an instruction pressure and an instruction flow rate inputted thereinto from outside, eliminating the need for input signal line and being capable of autonomously contr...  
WO/2001/017095A1
A motor frame for water-cooling a mounted inverter effectively and constantly and a motor using the motor frame, and a motor pump. First cylindrical unit (1) for housing thereinside a motor stator, a second cylindrical unit (2) provided ...  
WO/2001/007790A1
The invention relates to a method for regulating the pressure in a supply line (2) extending from a centrifugal pump (1). The invention also relates to a device for regulating the pressure, in which a restrictor (14) is inserted into the...  
WO/2001/007836A1
The invention relates to a mixing valve in which the control body that controls the connection between the inlets and outlets is configured as a rotating pump wheel (24). Said pump wheel is connected to a hollow shaft (22) and controls, ...  

Matches 451 - 500 out of 6,915