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 |
|---|---|---|---|---|---|---|
| 121 | LIQUID RING PUMP WITH LINER | US13146372 | 2009-02-05 | US20110286840A1 | 2011-11-24 | Douglas Eric Bissell; Athanasios Diakomis; Louis J. Lengyel |
| A liquid ring pump is provided that includes an annular housing having an inner surface forming a housing cavity. The annular housing is filled with an operating fluid during operation of the pump. The operating fluid forms an eccentric liquid ring in the annular housing during operation of the pump. A rotor is disposed in the housing cavity and includes a plurality of rotor blades. A shaft extends into the annular housing into the housing cavity. The plurality of rotor blades extend radially outward from the shaft toward the inner surface of the annular housing. A liner formed from a corrosion resistant material is disposed substantially flush with at least a portion of the annular housing inner surface opposite a plurality of rotor blade ends. | ||||||
| 122 | Vacuum pump with wear adjustment | US11625171 | 2007-01-19 | US07878768B2 | 2011-02-01 | David Muhs |
| A vacuum pump having components that are subject to wear may be adjusted to compensate for the wear. In some instances, a vacuum pump may include a housing and an impeller disposed at least partially within the housing. A gap between the housing and the impeller may be adjustable to compensate for wear. In some cases, the housing may include a ring that may be moved to adjust a tolerance (or gap) between the ring and the impeller. In some instances, the ring may be rotated to adjust this gap. In other instances, the ring may be translated to adjust the tolerance. | ||||||
| 123 | Gs Abatement | US11658240 | 2005-07-19 | US20100061908A1 | 2010-03-11 | James Robert Smith |
| Low-cost apparatus is described for treating an effluent fluid stream from a process tool. In one embodiment, the apparatus comprises an abatement device (12) and a liquid ring pump (14) for at least partially evacuating the abatement device (12). During use, the abatement device (12) converts one or more components of the effluent stream, for example F2 or a PFC, into one or more liquid-soluble a compounds, for example HF, that are less harmful to the environment. The liquid ring pump (14) receives the effluent stream and a liquid, and exhausts a solution of the liquid and the liquid-soluble component of the effluent stream. The liquid ring pump (14) thus operates as both a wet scrubber and an atmospheric vacuum pumping stage. | ||||||
| 124 | VACUUM PUMP WITH WEAR ADJUSTMENT | US11625163 | 2007-01-19 | US20080175722A1 | 2008-07-24 | David Muhs; Douglas S. Prairie |
| A vacuum pump having components that are subject to wear may be adjusted to compensate for the wear. In some instances, a vacuum pump may include a housing and an impeller disposed at least partially within the housing. A gap between the housing and the impeller may be adjustable to compensate for wear. In some cases, the housing may include a ring that may be moved to adjust a tolerance (or gap) between the ring and the impeller. In some instances, the ring may be rotated to adjust this gap. In other instances, the ring may be translated to adjust the tolerance. | ||||||
| 125 | Screw type liquid ring pump | US10555782 | 2004-05-05 | US20070172366A1 | 2007-07-26 | Eimund Ovsthus; Aksel Ovsthus |
| Screw type liquid ring pump including a pump housing (9) with an inlet part (3) and an outlet part (11) and rotating helical screw rotor (8) inside the housing. The rotor is connected with a shaft (7) as well as a driving unit in the form of motor, preferably an electric motor (2), whereby the pump (20) with the pump housing (9) represents an elongation of the motor (2) with the motor housing thus representing an integrated or one piece unit. The shaft seal (22, 23) is provided wholly or partially in an annular space (24) provided within the rotor (8), whereby one end of the seal rests against an annular part (25) of the screw rotor provided in the annular space (24) between the rotor and the shaft, and its other end is tightly engaged against an inwardly protruding part (21) at the outlet end of the pump. | ||||||
| 126 | Liquid ring pump | US10557304 | 2004-09-02 | US20070065298A1 | 2007-03-22 | Bernd Wenckebach; Silke Heetsch; Alfons Junemann |
| A liquid ring pump comprises a first housing part that radially encloses two or more working chambers in which a rotatably mounted impeller is disposed in an eccentric manner, second and third housing parts that seal both sides of the first housing part and the pump, ducts or chambers for delivering and discharging the conveyed gas, and control disks that delimit the working chambers in an axial direction. The first housing part is embodied as a single piece while a connecting duct is provided which extends from the second to the third housing parts, and the ports facing the respective adjacent housing parts are configured such that the second and third housing parts can be embodied in an identical manner. | ||||||
| 127 | Liquid ring machine having pivoted outer housing | US646167 | 1996-05-07 | US5647728A | 1997-07-15 | Robert Siebenwurst; Hans Kuhn; Bernhard Tews |
| An improved liquid ring machine having a housing that has a circular inside contour and side shields arranged at its faces, at least one of which is provided with a control disk. The rotor of the machine is eccentrically mounted in the side shields to rotate relative to the machine housing. The rotor comprises a hub, blades, and a center wall that extends radially over the entire circumference of the rotor from the rotor hub to the free end of the blades. A partition wall is attached to the machine housing, lies in the same plane as the center wall and surrounds the center wall such that a gap exists between the center wall and the partition wall. The gap may be easily adjusted by pivoting the machine housing relative to the side shields, i.e., the control disks, and the rotor, around a pivot point that lies outside of the center axis. The machine housing may be secured in place in its pivoted position in each instance. Use of this pivot point provides a more uniform change in gap between the center wall and partition wall, and adjustments to the partition wall are not necessary, thus permitting the machine housing and partition wall to be provided as a unitary element. | ||||||
| 128 | Suspension pump with built-in variably eccentric liquid ring pump | US75558 | 1993-06-14 | US5366347A | 1994-11-22 | Ronny Hoglund |
| A pump for pumping pulp, comprising a first impeller (12) for pumping the pulp in fluidized state, and a gas evacuation pump (23) of liquid ring type comprising a pump housing (24) with a chamber (25) and a second impeller (26) rotating therein for evacuating gas collecting in front of said first impeller (12) via a system of channels (20, 21, 22), said impellets (12, 26) being mounted on the same shaft (4) for common rotation. According to the invention the chamber (24) of the gas evacuation pump (23) containing a rotating liquid ring (29) is defined circumferentially by an element (40) which is movable in relation to the second impeller (26) and the axis of rotation (5) thereof by means of an actuator (48, 50, 51), said element (40) being adjustable by the actuator (48, 50, 51) in three different operating positions dependent on the operating conditions prevailing for the pump. | ||||||
| 129 | Liquid ring pumps with improved housing shapes | US865448 | 1992-04-09 | US5213479A | 1993-05-25 | Thomas R. Dardis; Douglas E. Bissell; Richard F. Gordon |
| In liquid ring gas pumps of the type having a rotor rotatably mounted in a stationary housing for forming a quantity of pumping liquid into a recirculating ring inside the housing, fluid friction loss between the liquid and the housing is reduced by shaping the surface of the housing which is in contact with the liquid ring radially outside the rotor so as to minimize or at least substantially reduce the area of that surface. | ||||||
| 130 | Integral liquid ring and regenerative pump | US437677 | 1989-11-17 | US5096386A | 1992-03-17 | John M. Kassel |
| The problem of space and weight limitations for liquid ring pumps and regenerative pumps in aerospace applications is solved by a pump having a housing defining a first chamber (22) and a second chamber (24) independent of the first chamber. An impeller (10) is rotatably mounted in the housing and includes impeller blades (16) successively movable through the first chamber for cooperation therewith to provide a liquid ring portion of the pump, and through the second chamber for cooperation therewith to provide a regenerative portion of the pump. An inlet (26) admits fluid to the first chamber. A first outlet (28) from the first chamber feeds the fluid to an inlet (32) of the second chamber for pressurization therein. An outlet (34) from the second chamber feeds the pressurized fluid for appropriate use, such as in a fuel pump system. A dual pump configuration also is contemplated with a pair of first chambers (22, 22a) and liquid ring portions of the pump, and a pair of second chambers (24, 24a) and regenerative portions of the pump. The fluid in the dual ring pump portions is fed to one of the liquid compressor portions and then to the other regenerative pump portion for doubling the effectiveness of the pump. All of this is accomplished by a unitary housing and a single impeller. | ||||||
| 131 | Side channel self priming fuel pump having reservoir | US29517 | 1987-03-24 | US4804313A | 1989-02-14 | Pius J. Nasvytis |
| A side channel pump (10) has a pumping cavity (26) which includes an inlet port (78), a discharge port (80) and side channels (72,74). An impeller (54) is mounted for rotation in the pumping cavity. A reservoir (20) holds an ample supply of liquid for pump priming and pump cooling during periods of gas pumping. A bypass suction duct (24) carries liquid from the reservoir to the pumping cavity during priming, gas pumping and normal operating and a bypass return duct (22) returns some discharged liquid to the reservoir during gas pumping and normal operation. The reservoir acts as a heat sink to enable the liquid ring formed during gas pumping operation to absorb more heat and provide pump cooling. | ||||||
| 132 | Internal combustion engine | US326478 | 1981-12-02 | US4432314A | 1984-02-21 | Emmanouil A. Pelekis |
| Internal combustion engine includes a rotary oxidizing gas compressor, a constant volume combustion chamber with pneumatically controlled intake and exhaust valves and a fuel injector, and a rotary combustion gas expander. Each of the rotary compressor and rotary expander has a pair of tangential rotors dependently rotatable in a housing, one rotor having a vane and the other a notch for allowing passage of the vane, to form a fluid tight segmented annular region through which the vane moves. The respective one of the intake valve and the exhaust valve admits a mass of high pressure compressible fluid to the region through a triangular port for expansion or from the region after compression, the mass of fluid being confined in a part of the region between the vane and the surface of the notched rotor and changing in pressure because of the change in arcuate length and volume of the confined part. The respective pairs of rotors are included on the same respective shafts. Two vanes may be included on the one rotor and two notches on the other. Two vaned rotors may cooperate with one notched rotor, the vaned rotors being on separate shafts. | ||||||
| 133 | Liquid ring pump with vanes in liquid ring | US314388 | 1981-10-23 | US4422832A | 1983-12-27 | Harold K. Haavik |
| A liquid ring pump having at least one vane disposed in the portion of the liquid ring between the outer periphery of the rotor and the inner periphery of the housing for controlling the flow of the adjacent liquid to reduce energy losses due to such factors as the curvature of the liquid flow and re-entry of the liquid into the rotor with velocity which does not match the velocity of the liquid already in the rotor. | ||||||
| 134 | Compressor | US662183 | 1976-02-27 | US4074954A | 1978-02-21 | William Walter Roberts |
| A compressor which may also function as a vacuum pump or as a contactor has a rotor surrounded by a gill ring through which the gas or lower density fluid enters. The gas or lower density fluid, compressed if desired, is discharged from inside the gill ring. | ||||||
| 135 | Liquid ring pumps | US468166 | 1974-05-08 | US3932063A | 1976-01-13 | Denis Victor Butler |
| A liquid ring pump comprising a housing, a substantially oval chamber within said housing, and a hub supporting a plurality of radially disposed vanes adapted to rotate within said chamber, said pump being such that the interstices between said individual vanes are partially blocked by a blocking mass which rotates with said vanes and which raises the stall pressure ratio of said pump to increase its pumping efficiency. The blocking mass is additional to the hub and in the case where the liquid ring pump also includes a gas/liquid mixture inlet port and a gas discharge port arranged on opposite sides of said pump, then the blocking mass forms a weir which gives the additional advantage that it acts to prevent the direct axial migration of liquid from said inlet port to said gas discharge port, thus enabling said pump to easily separate said gas liquid mixture into separate gas and liquid phases. | ||||||
| 136 | Motor-driven pedestal-mounted pump assembly and method for manufacturing the same | US3713749D | 1970-09-30 | US3713749A | 1973-01-30 | FITCH J |
| A motor driven pedestal pump assembly and a method for manufacturing same are disclosed. The assembly has a housing which may include one or two members. The housing supports the bearings and the elongated drive shaft and houses the pump rotor of the pump assembly. One of the housing members, which may be the sole member, has a bearing bore at one end and a mounting face at the other end. This housing member is hollow and is constructed so that the mounting face and the bearing bore can be machined from one end during a single set up.
|
||||||
| 137 | Multistage vacuum pumping system | US3642384D | 1969-11-19 | US3642384A | 1972-02-15 | HUSE HENRY |
| A self-regulating vacuum pumping system comprising a first stage positive displacement pump arranged in series with a second stage liquid ring pump. The high volumetric efficiency of the positive displacement pump is substantially improved by the combination compression, cooling and condensing action of the liquid ring pump.
|
||||||
| 138 | Vacuum pump or compressor | US3588283D | 1969-10-27 | US3588283A | 1971-06-28 | FITCH JAMES B |
| THE PRESENT INVENTION INCLUDES A VACUUM PUMP WHEREIN PASSAGEWAYS ARE FORMED FOR CONTROLLING A PREDETERMINED SHROUD PRESSURE INDEPENDENTLY OF ASSEMBLY CLEARANCES. THIS INVENTION INCLUDES SELECTIVELY ANGULARLY LOCATING PASSAGEWAYS BETWEEN PERIPHERAL LOBE SWEEP CHAMBERS AND ROTOR END FACE CHAMBERS, AND BETWEEN SAID ROTOR END FACE CHAMBERS AND A ROTOR HUB. INTERNAL GAS AND LIQUID LEAKAGE DUE TO PRESSURE DIFFERENTIALS IN RESPECTIVE POSITIONS WITHIN THE PUMP ASSEMBLY IS MINIMIZED.
|
||||||
| 139 | Gas pumps and compressors of the liquid ring type | US42068864 | 1964-12-23 | US3303991A | 1967-02-14 | LEON DARDELET ROBERT |
| 140 | Centrifugal pump with gas separation means | US17067362 | 1962-02-02 | US3213794A | 1965-10-26 | ADAMS HAROLD E |
QQ群二维码
意见反馈
意见反馈