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WO/2001/016488A1 |
A control for a pump detects an operational characteristic thereof and applies power to a power unit in dependence upon the detected operational characteristic to automatically and electronically control pump priming and stroke length.
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WO/2001/012976A1 |
The invention relates to a device for delivering and/or spraying flowable media, especially fluids, which works according to the energy accumulation principle and which is configured as an electromagnetically driven reciprocating piston ...
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WO/2001/004494A2 |
The invention concerns a pumping device for discharging large amounts of liquid, comprising at least two pumps forming each an individual unit. Said two pumps are mutually connected to a discharge pipe on the discharge side, and are coup...
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WO/2000/079130A1 |
Vibratory pump provided with diameter smaller than the diameter normally observed, proper to house the pump inside the tubular well; said pump is still provided with cooling device of the drive solenoid set (10), that consists in inverti...
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WO/2000/079144A1 |
The invention relates to a needle bearing (10) that comprises an inner ring (11) configured as an eccentric sleeve, needles (14) and an outer ring (12) having rims (17, 18) which point inwardly on both faces thereof, and of which one is ...
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WO/2000/077396A1 |
The inventive pump aggregate has an electromotor (10) whose output shaft (12) is coupled to a piston pump arrangement (14) by gears, in order to convey hydraulic fluid. According to the invention, a catching area (30) is provided to prev...
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WO/2000/075512A1 |
The invention relates to a pump cylinder in which a pump plunger is located which divides the cylinder into a front and a rear part. In the front part, said pump cylinder has a connection for sucking in the medium to be conveyed. The rea...
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WO/2000/073655A1 |
The invention concerns a device for diffusing drops of at least one liquid, comprising at least a liquid displacement path defined by a series of pairs of very close surfaces (4a, 6a, to 14a) for retaining and moving the liquid from one ...
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WO/2000/068572A1 |
The invention relates to a hydraulic aggregate which is provided with a housing (10) being a reservoir for pressure fluid. The housing comprises a bottom (12) a cover (11) and a middle part (13) arranged therebetween, whereby said middle...
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WO/2000/066890A1 |
The present invention relates to a pump which by its mode of operation transfers fluid by means of oscillating movements which create waves in the fluid which has to be transferred. The pump is based partly on a transition between potent...
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WO/2000/065230A1 |
A hydraulic pump with a built-in electric motor wherein an electric motor and a pump unit that are disposed in tandem are stored in a common housing. In this pump, the housing in the form of an electric motor frame having an electric mot...
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WO/2000/061392A1 |
Actuator (1) having an electric motor (2), a transmission unit (3) and a hydraulic medium unit (4) spatially separated from one another, which can display the functions compressing, displacing and kneeling.
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WO/2000/061946A1 |
A composite piston (30) for a vibration pump comprises a core (32), activating a piston, and a piston (34) made of plastic and obtained by means of moulding on an insert formed by the core (32). The composite piston (30) thus obtained ac...
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WO2000021587A9 |
This invention is a rapid infusion system for rapidly delivering blood, and/or volume expanding fluid to a patient. The rapid infusion system includes a rapid infusion device (10) which comprises in combination a portion which includes a...
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WO/2000/053925A1 |
A rotary power unit (10), comprising a housing (22) having a circular opening (24) and a plurality of bores (28) extending along a radial axis from a center of the opening (24), a nodular rotor (52) mounted within the opening (24) of the...
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WO/2000/050750A1 |
A method of operating a free piston internal combustion engine (10) includes the steps of: providing a housing (12) with a combustion cylinder (18) and a second cylinder (20), the combustion cylinder (18) having a bore with an inside dia...
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WO/2000/047894A1 |
A constant volume suction and discharge device which can be used in a dispensing device and an automatic analyzer and is simple in structure, less in number of parts, high in reliability and accuracy, and low in cost, comprising a motor ...
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WO/2000/039462A1 |
A linear compressor including a well-closed container filled with oil at its bottom; a compressive unit having a frame of a hollow inside the well-closed container to which a cylinder inserted, a piston inserted into the hollow of the cy...
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WO/2000/039461A1 |
An oil supply unit of a linear compressor including: a well-closed container filled with oil; a frame installed within the well-closed container; a cylinder fixed at the frame; a piston inserted in the cylinder and being linearly and rec...
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WO/2000/039460A1 |
The invention relates to a fuel metering pump (1) of prior art comprising a solenoid coil (2), an anchor (3), a delivery piston (4) and spring-loadedalves. According to the invention, the spring-loaded valves are embodied as an electrica...
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WO/2000/026536A1 |
An opening and closing system for an oil path of a linear compressor that facilitates smooth oil supply during the operation of the compressor and has the oil which has been supplied to the compressor partly remained therein when suspend...
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WO/2000/026538A1 |
A hybrid compressor simple in construction and capable of easily driving the compressing section. Since the portion of a rotary shaft (11) projecting through one side of the compressor section (10) is provided with an electromagnetic clu...
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WO/2000/022298A2 |
A diaphragm metering pump (20) has an electromagnetic drive comprising a coil (28) and a movable armature (30). A shaft (40) connects the drive to the diaphragm (46). The electronic control consists of a pulser circuit (64) with the micr...
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WO/2000/020757A1 |
Apparatus comprising a pump or compressor operated by a pull-cord wound around a pulley (9), in which the pulley drives a shaft (11) which drives the pump or compressor, and the pulley is recoiled by means of a retractor type spring (32)...
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WO/2000/019086A1 |
The invention relates to a method for the dosed, pulse-like pumping of fluid media under high pressure. According to said method a pressure wave resulting from the stored kinetic energy of an electromagnetically driven armature element (...
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WO/2000/017522A1 |
Magnetizable fluid (FF) is magnetically pumped or moved in a vessel (10), which contains a first and a second connecting tube (12, 14) for the liquid (FF), and is subject to a time dependent magnetic field. The vessel (10) is only partia...
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WO/2000/013951A1 |
The invention relates to a motor-pump assembly, comprising an electromotor and a piston pump, especially for slip-controlled braking systems of vehicles. The pistons (14) of the pump are driven by means of a cam (11, 13) and the drive sh...
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WO/2000/014401A1 |
A pumping system (14, 38, 44) supplying high pressure actuation fluid to individual fuel injectors (46) of an engine (10) equipped with a hydraulically-actuated fuel injection system wherein the three major elements of the system, namely...
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WO/2000/014408A1 |
A fluid displacer comprises a generally tubular conduit (2) for a fluid (3) and at least one generally annular electromagnetic drive coil (4) surrounds the conduit. At least one fluid mover in a form of two aperture discs (7) is provided...
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WO/2000/000741A1 |
A plasma pumping cell and method for pumping ions from a first region containing a plasma to a second region when the plasma pumping cell is interposed between the first and second regions, the plasma pumping cell including: a partition ...
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WO/2000/000241A2 |
An electromagnetic pump (10) has a housing (12), a check valve (24) operatively associated with a fluid containing region (14), an electromagnet (140) carried by the housing (12) and located external to the fluid containing region, and a...
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WO/1999/066225A1 |
A drive connector for elastomerically coupling a drive shaft to a driven shaft. An elastomeric coupling (42) includes openings (74, 80) on opposite ends that are generally 'D'-shaped forming an interference fit with correspondingly shape...
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WO/1999/063217A1 |
The invention relates to a pumping device comprising a pump assembly (4) which is configured as a reciprocating piston pump. The pump displaces fluid by means of a reciprocating piston (6, 7). The inventive pumping device also comprises ...
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WO/1999/063224A1 |
A precision pumping device for aspirating and dispensing different volumes of fluid is presented. The precision pumping device comprises a housing with integral anti-rotation guides, a stepper motor which drives a fine pitch leadscrew, a...
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WO/1999/059859A1 |
A power steering device for assisting a steering operation by a hydraulic pressure generated from a hydraulic pump, comprising an electric motor, the hydraulic pump driven by the electric motor, and a control device which is positioned b...
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WO/1999/060271A1 |
The invention relates to a space and weight-saving motor-driven pump assembly containing a drive motor and a pump unit which is driven by the motor shaft of said drive motor. In order to be able to deliver as much media as possible in a ...
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WO/1999/060270A1 |
The invention concerns a motor pump with axial through flow comprising an incorporated flowmeter and pressure controller, consisting of an internal axial flow motor pump (1) with electromagnetic motor and hollow free piston, equipped wit...
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WO/1999/058854A1 |
A method to improve the high output characteristics of an ultrasonic transducer by urging a cooling gas (13) to flow through the transducer, thereby passing a cooling member (3) at the inner radius of at least one piezoelectric element (...
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WO/1999/050558A1 |
An energy efficient high pressure pump system includes a drive motor (12) driving an eccentric transmission, which drives a reciprocating pump (28) having a number of cylinders. The eccentric transmission transmits a torque demand from t...
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WO/1999/049215A1 |
Previously, there were often noise problems with pump units which had a drive motor (2) mounted on a pump block (4). It turned out that these noise problems often originated in the amount of play (41,42) required to mount the drive motor...
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WO/1999/047811A1 |
The invention relates to an apparatus for high pressure pumping or homogenizing liquids. The apparatus comprises a drive motor (1) with transmission mechanism and a pump section. The transmission mechanism comprises a belt train (6), a g...
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WO/1999/040669A1 |
The invention relates to an electrical motor (3) comprising a pot-shaped housing (5) to accommodate a shaft (11) and a hood (6) to close the housing (5). The hood (6) of the motor has a peripheral section (6a) extending in a substantiall...
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WO/1999/036686A1 |
In a vehicle having a drive train including an internal combustion engine with at least one shaft supported for rotation by internal bearings, the improvement comprises a high pressure hydraulic pump assembly rigidly connected to the dri...
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WO/1999/034498A1 |
The invention relates to a drive mechanism for a pump (10) using a drive motor (20) whose rotational speed and torque are influenced by a frequency converter (30). The frequency converter (30) is arranged on a cooling body (40) that is c...
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WO/1999/028626A1 |
The invention concerns a vacuum pump element with liquid discharge rate and pressure comprising means (21, 22) for forced circulation of the liquid by an electrodynamic transducer mobile in translation (40) consisting of a piston (41) en...
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WO/1999/028174A1 |
The invention relates to a rotor mounting for a motor pump aggregate (1) comprised of two mounting positions for accommodating radial loads and a third mounting position for accommodating axial loads on the shaft of the rotor (2) of the ...
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WO/1999/025979A1 |
An oil pump for automatic motor vehicles has a housing (4), a pump wheel (3), an internal geared wheel (5) and a drive which consists of a mechanical driving part (2) connected to the internal combustion engine of the motor vehicle and o...
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WO/1999/019193A1 |
The invention concerns a device for storing and delivering fluid under pressure in hydraulic systems, comprising a motor unit (4), a pump unit (3) and a storage unit (2). The invention is characterised in that, in order to produce an ass...
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WO/1999/019624A1 |
The invention relates to a unit (1) for conveying hydraulic fluid in hydraulic systems with an axial piston pump (2) and an electromotive driving mechanism configured as a linear motor (3). According to the invention, a housing (2a) of t...
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WO/1999/010653A1 |
A subsurface well system contains well bore fluid and a pumping system which is lowered into the well bore on a conduit. The pumping system is supplied with electrical power through a conductor. The pumping system has a chamber, a discha...
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