| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 81 | Submersible pump with UV sterilization device | US12098421 | 2008-04-05 | US07902522B2 | 2011-03-08 | Ming Yu Lee |
| A submersible pump with UV sterilization device includes a casing, at least one sterilization room and one water pump room provided in the casing, a first end cap and a second end cap separately fixed at the two ends of the casing, a front water inlet provided at the first end cap, a back water inlet connected to the water inlet of the sterilization room provided at the second end cap, and a reflection board provided at the internal wall of the sterilization room. A water pump is fixed in the water pump room, a water outlet is fixed above the impeller room of the water pump, the impeller room is connected to the water outlets of the sterilization room, a cold cathode UV sterilization device is provided in the sterilization room, the sterilization device is connected to the output end of an inverter fixed in the casing. | ||||||
| 82 | METHOD AND APPARATUS FOR MANAGING FLUID FLOW WITHIN A SCREW PUMP SYSTEM | US12433515 | 2009-04-30 | US20100278673A1 | 2010-11-04 | Vasanth Kothnur; David Deloyd Anderson; Farshad Ghasripoor; Michael V. Drexel; Thomas Steen; Hrishikesh Vishvas Deo |
| In a pump system, a process fluid is directed into inlet chambers of a pump casing at an inlet pressure, and a plurality of rotors disposed inside the pump casing are rotated to pump the process fluid from the inlet chambers to an outlet chamber located between the inlet chambers, wherein the process fluid in the outlet chambers is at an outlet pressure. The process fluid is directed from the outlet chamber to a separator configured to separate particulate matter from the process fluid, and a portion of separated process fluid is directed from the separator to a gear chamber of the pump. Pump bearings are lubricated with the portion of separated process fluid from the gear chamber. Some of the portion of the separated process fluid from the pump bearing is leaked to the inlet chambers via rotor shrouds to reduce accumulation of particulate matter in the inlet chambers. | ||||||
| 83 | METHOD AND APPARATUS FOR LUBRICATING A SCREW PUMP SYSTEM | US12433490 | 2009-04-30 | US20100278672A1 | 2010-11-04 | Vasanth Kothnur; David Deloyd Anderson; Michael V. Drexel; Thomas Steen; Farshad Ghasripoor; Hrishikesh Vishvas Deo |
| A pump system includes inlet chambers, an outlet chamber, and rotors disposed inside the inlet chambers and the outlet chamber to pump a process fluid from the inlet chambers to the outlet chamber and to direct the process fluid to a separator. A gear chamber is configured to receive a portion of the process fluid from the separator. First and second sets of pump bearings are coupled to the rotors and lubricated by the portion of the process fluid flowing from the gear chamber. A conduit is configured to direct the portion of the process fluid from the pump bearings back to the gear chamber. Some of the portion of the process fluid lubricating the pump bearings is permitted to leak to the inlet chambers. Additional process fluid is continually added to the portion of the process fluid to compensate for fluid leaking to the inlet chambers. | ||||||
| 84 | PAINTING APPARATUS | US12596433 | 2008-04-04 | US20100170433A1 | 2010-07-08 | Ruth Elizabeth Walcot; Michael Roger Cane; Christopher John Ord |
| A painting apparatus (10) comprising a paint module (20), an applicator assembly (50), and a dip-tube assembly (20) containing a pump (86), the applicator assembly being fluidly connectable to liquid in the paint module via the dip-tube assembly, in which the pump is arranged within the dip-tube such that the pump is submerged in the liquid to substantially drive liquid away from the pump when supplying liquid to the applicator assembly. | ||||||
| 85 | AGITATOR TOOL FOR PROGRESSIVE CAVITY PUMP | US12272971 | 2008-11-18 | US20100124146A1 | 2010-05-20 | John Sebree |
| The invention relates to an agitator tool for use with a progressive cavity pump for agitating a slurry of sand, heavy oil or water. The agitator tool has an elongate body having a lower end, an upper end, and a plurality of longitudinal grooves spaced between the lower and upper ends and radially about the body. The upper end is configured for coupling to a pump rotating element. Agitation members are pivotally mounted within the longitudinal grooves so as to be movable from an actuation position wherein the agitation members project outwardly from the body during rotation to agitate the slurry, to resting positions wherein the agitation members are folded within the grooves during installation or removal of the tool. | ||||||
| 86 | PROGRESSING CAVITY PUMP WITH SPLIT STATOR | US11928842 | 2007-10-30 | US20090110578A1 | 2009-04-30 | Michael D. Amburgey; Yuan Yu Cheng |
| A progressing cavity pump system including a rotor and a stator having an inner cavity. The rotor is rotationally disposed inside the inner cavity of the stator such that rotation of the rotor relative to the stator causes material in the inner cavity to be pumped through the stator. The stator includes at least two radially separable stator portions such that when at least one of the stator portions is removed, at least one of the rotor or the inner cavity is exposed. | ||||||
| 87 | Power steering pump relief system filter | US11504165 | 2006-08-15 | US20080044297A1 | 2008-02-21 | William Joseph Foor |
| Accordingly, the present invention provides a power steering pump having a filter that removes contaminants from fluid flowing through the relief system of the power steering pump. The power steering pump includes a housing having a longitudinal bore communicating with a fluid outlet. A fluid discharge port communicates with the bore and a fluid bypass port also communicates with the bore. A flow control member is situated in the bore and forms a outlet passage communicating with the fluid outlet. A flow control valve is slidably received in the bore. The flow control valve operates to open and allow communication between the fluid discharge port and the outlet passage in the flow control member. When the fluid flow from the fluid discharge port reaches a suitable pressure, the valve opens further to allow fluid flow from the fluid discharge port to the bypass port. A fluid pressure passage communicates pressure from the fluid outlet to a pressure sensing chamber forming part of the flow control valve assembly. A filter located downstream from the flow control member operates to filter fluid passing through the fluid pressure passage, and thereby, prevents contamination from entering the relief system of the power steering pump. | ||||||
| 88 | Internal gear pump with recesses on the gear bearing surfaces | US10509625 | 2003-03-28 | US20050152803A1 | 2005-07-14 | Giorgio Manfredini; Uber Bortoli |
| A positive-displacement pump, in particular for use in machines or dispensing fluids, including two elements that are with respect to one another and which mesh with one another (20, 30), each of them being rotatably mounted in the pump with centered coupling without interference with a corresponding centering body (18, 11a). At least one of the two above-mentioned ratable elements has a plurality of undercut regions (26, 34, 35) at the location of the centering walls. The undercut regions (26, 34, 35) comprise a wall portion which is spaced with respect to the facing wall of the respective centering body. | ||||||
| 89 | Fuel pump with filter-absent safety valve and universal inlet and outlet | US11006171 | 2004-12-07 | US20050084391A1 | 2005-04-21 | Barry Grant |
| Fuel pump assembly 10 includes a filter 42 that rests on ledge 48, between the pump housing 22 and inlet cap 56. Filter detector 50 has a valve engager 62 for opening the check valve 58 and bearing feet 52 that engage the perimeter of the filter. When the filter is absent from the pump, the bearing feet 52 of the filter detector move beyond the ledge 48 into the recess 54 and the valve engager stem 62 retracts from the check valve 58 and the valve closes to terminate flow of fuel to the pump. The inlet and outlet caps 56 and 76 are rotatably mounted to the intermediate body of the pump to allow the fuel inlet and outlet to be oriented at angular intervals about the pump. A progressive seal is formed at the O-ring 86 between the inlet end cap 56 and the fuel pump housing to continue the seal as the end cap is removed or reassembled with the housing so that the check valve is closed before the housing is opened. | ||||||
| 90 | Feed pump for fluidic media | US10472426 | 2003-09-18 | US20040109780A1 | 2004-06-10 | Georg Gillert; Dirk Henningsen |
| The invention relates to a feed pump for fluidic media, comprising a displacement body that is mounted in a pump housing and equipped with slide bearings and connecting channels that connect the slide bearings to the produce channel on the suction side for recirculating the fed medium that lubricates the slide bearings. The connecting channels are linked to control channels that lead to the exterior and guide channels are provided in the extension of the connecting channels in the housing of the cover. Said guide channels accommodate the valve plungers, each of which has a constriction. The section of the valve plunger lying adjacent to the product channel has a length and a diameter, which correspond to the length and diameter of the connecting channel. | ||||||
| 91 | Accessory drive and particle trap | US09927714 | 2001-08-10 | US06634459B1 | 2003-10-21 | Thaddeus T. Litkenhus; Cornelius N. Opris; Craig R. Rust; William L. Short |
| An accessory drive system to provide engagement between a driving input source and a driven accessory unit includes a housing attachable to the input source. A fluid suction port and a discharge port are defined by the housing and the suction port is in fluid communication with a fluid reservoir of the input source. The fluid discharge port is in fluid communication with the suction port and a gear assembly is rotatably supported by the housing. The accessory unit is operably engaged by the input source through the gear assembly and the gear assembly is structured and arranged within the housing to urge fluid away from the housing in response to movement of the gear assembly. | ||||||
| 92 | Pump having a main outlet communicating with a secondary outlet by a gap | US09666480 | 2000-09-20 | US06419469B1 | 2002-07-16 | David Robert Shulver; Michael David Rowe; Nigel John Goodall |
| A pump has meshing inner and outer rotors mounted eccentrically in a housing. The pump also has an inlet and a main outlet. The main outlet communicates via a control gap with a secondary outlet. The control gap provides a filtering action for some of the fluid pumped. | ||||||
| 93 | Gear pump for use in an electrically-operated sealed compressor | US09476135 | 2000-01-03 | US06227828B1 | 2001-05-08 | Yoshiharu Takeuchi; Kiyoji Aburaya; Toshiharu Yasu; Masahiro Tsubokawa; Manabu Sakai; Shoji Aoshika; Tsutayoshi Narita |
| A gear pump is used in an electrically-operated sealed compressor. The compressor includes a compression mechanism, an electric motor for driving the compression mechanism, and a crankshaft for transmitting the rotational force of the electric motor to the compression mechanism. The gear pump includes a pair of gears being in mesh with each other, one of which is connected to one end of the crankshaft, and a pump casing accommodating only the pair of gears. The pump casing together with the gear pair is disposed on one side of a cover plate, while other elements constituting the gear pump are disposed on the other side of the cover plate. By this construction, the distance between the gear pair and an auxiliary bearing to which the gear pump is secured can be reduced and, hence, an undesirable whirling of one end portion of the crankshaft can also be reduced. | ||||||
| 94 | Liquid ring machine having a rotor with sweeping edges for scraping-off deposits | US331564 | 1999-06-21 | US6082973A | 2000-07-04 | Rudi Dittmar; Norbert Schmid |
| A rotor for a liquid ring machine having a plurality of vanes connected to the rotor hub and a support disk, with the rotor hub face and the support disk back side having sealing surfaces. Recesses with formed edges, capable of scraping off material deposits, are located on the rotor hub face and the support disk back side. | ||||||
| 95 | Gear pump | US4440 | 1998-01-09 | US6062836A | 2000-05-16 | Wilhelm Julicher; Gerald Gaumitz; Gert Huppertz |
| A gear pump comprising two gearwheels moving in opposite senses, the gears whereof engage with one another and thus, separated from one another in a pressure-tight manner, form a delivery side and a suction side; a central plate wherein the gearwheels are accommodated; a front and rear covering plate, which seal the gear pump from the environment, and conventional means of connecting the plates with one another, of supporting the gearwheels, of driving at least one of the gearwheels and of supplying and removing the liquid being pumped, during the delivery of silver halide emulsions exhibits no silver deposits--which bring the pump to a halt--on its faces, if on each face of each gearwheel there is provided at least one indentation having a sharp rear edge viewed in the direction of rotation. | ||||||
| 96 | Hydraulic pump, suitable for food products | US823200 | 1997-03-24 | US5904474A | 1999-05-18 | Giuliano Cocchi; Gianni Zaniboni |
| The pump has an integrated fluid pressure actuator which provides for the movement and the axial retention of a movable cover which closes one end of the seat of rotation of the lobes of the pump itself. When the pump is in operation, the movable cover closes the seat of the lobes whereas, when the pump is to be washed, the cover is moved away from the lobes to allow effective circulation of the cleaning liquid. The pump is further equipped with a circuit for washing the seals on the shafts, which is automatically active when the movable cover is in the retracted position of the washing phase and which, in this state, draws the cleaning liquid directly from the suction pipe of the pump, makes it circulate behind the seals on the shafts and discharges it into the delivery zone of the pump itself. The pump is also equipped with apertures which perform the function of indicators of malfunctioning of the pump itself in the event of the main seals on the shafts giving way. | ||||||
| 97 | Rotary pump with cutting means | US301786 | 1989-01-26 | US4984975A | 1991-01-15 | George A. Thompson |
| A rotary pump of the type having a pair of double-lobed intermeshing rotors rotatably mounted in a housing is provided with a concave recess in the leading edge of each lobe of each rotor which defines a cutting edge with the end surface of each lobe for comminuting solid or stringy material entrained in the liquid being pumped. | ||||||
| 98 | Positive displacement pump | US470034 | 1983-02-28 | US4453901A | 1984-06-12 | Robert D. Zimmerly |
| A sanitary positive displacement pump having increased internal clearances to allow increased operating pressures without detrimental wear while maintaining high volumetric efficiency. The invention includes rigid and accurate positioning of the liquid impellers to the shafts while maintaining ease of disassembly and assembly. The impellers are secured on the shafts by cooperating frusto-conical surfaces on each of a pair of nuts. A rubber retainer ring enables manual release of the nuts but prevents inadvertent spinoff. | ||||||
| 99 | Flushable rotary gear pump | US247610 | 1981-03-25 | US4400147A | 1983-08-23 | Carl M. Springer; Bernd O. Theis; Georg Wawra; Richard Juffa |
| Flushable rotary gear pumps for delivering fluidic material, such as liquid coating material, may quickly and thoroughly be flushed of material of one type in preparation for delivering material of another type. In one embodiment, a valve selectively establishes a bypass channel between an inlet to and an outlet from a pump, thereby to accommodate a relatively large volume flow of flushing media through the pump and supply and delivery lines therefor. In another embodiment, the valve is structured to monitor fluid pressure developed by the pump and to automatically control and limit the pressure to a maximum value should an overpressure condition develop. In yet other embodiments passages are provided internally of the pump for conveying flushing media to all exposed surfaces of the gears, gear shafts and pump body to flush the same of coating material, whereby the entirety of the pump may readily be cleansed. If desired, the various features may be combined in a single pump. | ||||||
| 100 | Rotary pumps circulating pumped fluid to seal | US815719 | 1977-07-14 | US4153400A | 1979-05-08 | Kazuo Morita |
| Rotary pumps wherein the conveyed fluid, e.g. foodstuffs, entering around the rotor seats, is prevented from staying there statically, by circulating part of the fluid from the high-pressure side of the pump chamber to the low-pressure side through appropriate holes or apertures disposed around the rotor seats, and by making use of the fluid pressure itself. Washing can be carried out around the seats by circulating water that is fed to the pump, instead of the fluid, after the use of the pump has been stopped. The pumps feature a fluid circulating passage between the high-pressure side and a space in a cap portion, for purposes of cleaning that space. | ||||||
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