子分类：
| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 61 | JETTING DISPENSING SYSTEM INCLUDING FEED BY PROGRESSIVE CAVITY PUMP AND ASSOCIATED METHODS | US15743659 | 2016-08-02 | US20180200749A1 | 2018-07-19 | Cutler CROWELL, III; Alan R. LEWIS |
| A jetting dispensing system includes a dispenser body with a fluid chamber and a valve element, and a progressive cavity pump for feeding fluid into the fluid chamber. The progressive cavity pump propagates a plurality of separated cavities of fluid along an elongate length thereof to generate and maintain an incoming fluid pressure at a fluid inlet and the fluid chamber of the dispenser body. Accordingly, the droplets that are generated from operating the valve element in jetting dispensing cycles may define a volume of fluid, regardless of variations in fluid viscosity and variations in operational speed of the jetting dispensing system. Furthermore, the velocity profile of fluid exiting the dispenser body may be more constant to avoid causing changes in fluid velocity that can damage fluid particles and/or cause rotational tumbling or blossoming of the droplet while in flight towards the substrate. | ||||||
| 62 | MINIATURE HIGH PRESSURE PUMP AND ELECTRICAL HYDRAULIC ACTUATION SYSTEM | US14912758 | 2014-08-19 | US20160201694A1 | 2016-07-14 | Andrea VACCA; Gabriele ALTARE |
| Methods and apparatus pertaining to positive displacement pumps, and further to hydraulic actuation systems. In some embodiments the pumps are gear pumps with bi-directional operation. In some embodiments the actuation system includes a motor-driven, reversible operation gear pump providing fluid under pressure to a rod and cylinder. | ||||||
| 63 | LUBRICANT RESERVOIR LOW LEVEL INDICATOR | US14909643 | 2014-08-07 | US20160186929A1 | 2016-06-30 | Andrew J. Klaphake; Jeffrey Kidman; Suresha S. Nijaguna |
| A lubrication system comprises a lubricant reservoir, a motorized pump, a follower plate, a stationary rod, a movable sleeve, and a flexible connection. The motorized pump is disposed to pump fluid from the lubricant reservoir to lubricant work lines. The follower plate is situated within the lubricant reservoir. The stationary rod has a colored indicator portion. The movable sleeve disposed concentrically about the stationary rod. The flexible connection extends between the follower plate and the stationary colored rod, such that the flexible connection pulls the movable sleeve away from the stationary rod to reveal the colored indicator portion as the follower plate drops towards a bottom of the lubricant reservoir. | ||||||
| 64 | VACUUM CONTROL IN A VACUUM FILLER WITHOUT EXTERNAL AIR SUPPLY | US13474753 | 2012-05-18 | US20120295526A1 | 2012-11-22 | Martin Staudenrausch |
| A conveyor system for a filling machine and a method of conveying pasty mass with a corresponding conveyor system and a corresponding filling machine, including a housing with a vacuum opening and a vacuum pump as well as a suction line for generating a vacuum in the conveyor system. A valve means and at least one pressure sensor for measuring the pressure in the suction line and/or in the conveyor system are provided. A control means controls the vacuum in the conveyor system or the suction line, respectively, wherein the cross-section of the suction line is adjusted in response to the measured pressure via the valve means. | ||||||
| 65 | External Gear Pump | US13307822 | 2011-11-30 | US20120141315A1 | 2012-06-07 | Shinji SETO; Takahiro ITO; Isao HAYASE; Toshihiro KOIZUMI; Norihiro SAITA |
| An external gear pump capable of achieving both a sealing property and a sliding property is disclosed. The external gear pump includes a pair of rotating shafts that are respectively pivotally supported by bearings provided in a casing; at least a pair of gears that are respectively fixed to the pair of rotating shafts and are externally meshed with each other; a side plate that is provided in sliding contact with one side surfaces of the pair of gears; and a seal block integrally including a side surface sliding part and a tooth tip sliding part. The external gear pump further includes movement restrictors on both sides of a straight line connecting axes of the pair of gears, and the movement restrictors restrict the seal block from moving with respect to the casing on a plane orthogonal to the rotating shafts. | ||||||
| 66 | Open Circuit Wear Sensor For Use With A Conductive Wear Counterface | US12685766 | 2010-01-12 | US20110169651A1 | 2011-07-14 | David J. Mitchell; Anand A. Kulkarni |
| A component including a surface subject to wear by an electrically conductive wear counterface (50). The component comprises a substrate (10); one or more material layers (32) overlying the substrate (10); a wear surface layer (16) overlying the one or more material layers (32); a first pair of spaced apart and electrically open wear sensor conductors (12/14) disposed in the substrate (10), in the one or more material layers (32), or in the wear surface layer (16); a first wear warning electrical circuit (68/69/70/74) for communicating with the first pair of conductors (12/14) for providing a first wear warning; and wherein when the wear counterface (50) has worn overlying layers, the wear counterface (50) interconnects the first pair of conductors (12/14) to activate the first wear warning circuit (68/69/70/74). | ||||||
| 67 | INDUSTRIAL PROCESS EFFICIENCY METHOD AND SYSTEM | US12280201 | 2007-02-22 | US20090020173A1 | 2009-01-22 | David Man Chu Lau; Ka Lim Shek |
| This Invention relates to an industrial process efficiency method and system and relates particularly to a method and system for improving the efficiency and performance of any industrial process when loading is at maximum capacity or under maximum capacity. The system incorporates plurality of identical or similar capacity motor-driven pumps to move liquids, slurries, gases and other fluid or fluid-like material at equal reduced speed or at almost equal reduced speed or at similar reduced speed in lieu of the original/traditional designed comparative inefficient pumping arrangements, thereby, to provide the optimum or same flow capacity with respective to the original pumping arrangement's operating flow capacity. In accordance with the method and system of this invention, significant energy saving can be achieved. Furthermore, the method and system can act responsive to the loading signals or some other reference from which loading can be inferred, thereby a greater extent of energy saving can be accomplished accordingly. The present invention is directed to methods and systems of improving the overall operating performance and efficiency of movement of fluids such as in HVAC systems, paper processing, water and or sewage treatment plants, or any other system that incorporates fluid pumping and the like. | ||||||
| 68 | Hydraulic pump with variable flow and variable pressure and electric control | US11287099 | 2005-11-23 | US20060104823A1 | 2006-05-18 | Douglas Hunter; Matthew Jannausch |
| A pump system including a control system for controlling a variable flow pump for controlling oil flow and oil pressure in a hydraulic circuit in an engine. The system includes a pump member, an actuating member capable of controlling the flow generated by the pump member, and a solenoid valve system including a solenoid valve portion and a pressure regulator valve portion. The solenoid valve system is operably associated with the pump and the pressure regulator valve portion is operably associated with the actuating member for selectively controlling the flow generated by the pump member. An electronic control unit is operably associated with the solenoid valve portion, wherein the electronic control unit is selectively operable to provide an input control signal to the solenoid valve portion for controlling oil flow and oil pressure. | ||||||
| 69 | Method for adjusting a volumetric flow-variable positive displacement pump in an internal combustion engine | US10501531 | 2002-02-22 | US20050118033A1 | 2005-06-02 | Willi Schneider |
| The invention relates to a method for adjusting a volumetric flow-variable positive displacement pump in an internal combustion engine involving the following method steps: operating the positive displacement pump; delivering the fluid to the consumption points in the internal combustion engine; determining at least one characteristic value of the internal combustion engine; forwarding this characteristic value as an actual value signal to a control device; comparing the actual value signal with a predetermined set-point value; preparing an actuating signal from the difference between the actual signal and the set-point value; feeding the actuating signal to an actuator; using the actuator to alter the volumetric flow of the positive displacement according to the actuating signal; repeating the method steps until the actual value signal is equal to the set-point value. | ||||||
| 70 | Bootstrap power steering systems | US99167 | 1993-07-29 | US5435698A | 1995-07-25 | Edward H. Phillips |
| Methods and devices for enhancing bootstrap hydraulic systems for use in vehicular power steering systems are disclosed. Improved pressure dividing networks are provided for enabling balanced operation of supply pressure control function when valve input shaft and sleeve are in relative centered positions or for enabling a first method of providing speed sensitive control of steering assist. Control valves utilizing a combination of open-center and closed-center flow control orifices are provided for reducing parasitic pressure losses. An improved variable displacement pump is provided for enabling volumetric flow rate efficient operation of bootstrap systems. A vehicular speed dependent command signal for a servo motor powered bootstrap hydraulic system is utilized in another method of providing speed sensitive control of steering assist. Control valves using parasitic and bypass slots having decreasing overall flow resistance over a meaningful portion of nominally closing motion of a host control valve are disclosed wherein methods of providing nominally linear control valve pressure-effort characteristics of the meaningful portion of nominally closing motion of the host control valve are comprised. Finally, various power steering systems utilizing selected combinations of these methods and devices for enhancing bootstrap hydraulic systems are disclosed. | ||||||
| 71 | Gear pump with a resilient means for biasing a side wear plate | US772769 | 1991-10-07 | US5244367A | 1993-09-14 | David J. Aslin |
| A gear pump for use in a metered liquid dispensing system utilizes a pair of carbon graphite wear plates to increase pump vacuum or suction lift capabilities. The wear plates are disposed on opposite sides of the pump spur gears and are biased against the sides of the gears to reduce internal pump clearances. The biasing force is provided by a resilient O-ring positioned between a surface of the pump housing and one of the wear plates. The gears are mounted for limited movement so the urging of the one wear plate is transferred through the gears to the other wear plate. The gear pump is driven through a gear reducer unit by a reversible electric motor. The use of a gear pump assures accurate metering of the amount of fluid delivered by the system. | ||||||
| 72 | Method and apparatus for refrigerant recovery | US999606 | 1992-12-31 | US5235821A | 1993-08-17 | Christophe J. Sevrain; Bonnie C. Lambert |
| Refrigerant is recovered using a single pump unit, regardless of the refrigerant's phase. This is achieved by sensing the phase of the refrigerant and changing the pump's operation accordingly. The refrigerant phase can be sensed by a temperature-responsive element, such as a thermistor, or by other phase-sensing technology. In a preferred embodiment, the pump unit is a vane pump whose rotational speed is changed in response to the refrigerant's phase. If liquid refrigerant is sensed, the pump operates at a lower speed. If gas refrigerant is sensed, the pump operates at a higher speed. The two speeds are chosen so that the pump will draw an EPA-specified vacuum on the refrigerant present. In other vane-pump embodiments, the pump's operation is changed by changing the pump's mechanical configuration, rather than its rotational speed. | ||||||
| 73 | Vane type rotary fluid displacement device | US3487787D | 1967-12-06 | US3487787A | 1970-01-06 | PARR EDWARD L |
| 74 | Controllable hydraulic pump or motor | US21880462 | 1962-08-20 | US3225699A | 1965-12-28 | GEORG WIGGERMANN |
| 75 | Stack-up slipper pump with integral flow control valve | US28094763 | 1963-05-16 | US3200752A | 1965-08-17 | CLARK HUBERT M; DRUTCHAS GILBERT H |
| 76 | Two speed motors | US25539463 | 1963-01-31 | US3161111A | 1964-12-15 | WILLIAMS ARTHUR J |
| 77 | Liquid pumping apparatus | US7559360 | 1960-12-13 | US3118491A | 1964-01-21 | SIMONS ERNEST D; TYLER STANLEY R |
| 78 | Power transmitting devices | US21577951 | 1951-03-15 | US2719512A | 1955-10-04 | FRANK KOVACH |
| 79 | Pump | US19332550 | 1950-11-01 | US2685839A | 1954-08-10 | VANDENBURGH CHARLES D |
| 80 | Pump structure | US70834046 | 1946-11-07 | US2665639A | 1954-01-12 | SVENSON ERNEST J |
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