221 |
Pressure exchange apparatus with dynamic sealing mechanism |
US10921636 |
2004-08-20 |
US07207781B2 |
2007-04-24 |
Scott Shumway |
A pressure exchange device is provided that utilizes a rotor assembly inside a housing to transfer the pressure of a fluid from one high pressure fluid to another low pressure fluid. The housing may comprise a pressurized fluid contained therein to provide a sealing force to reduce fluid leakage between the spinning rotors and the housing. The sealing force and wear characteristics may be controlled to reduce leakage and wear of the pressure exchange device. The rotor assembly may be driven in either direction and the high pressure ports may be switched with the low pressure ports if desired. |
222 |
Pressure exchanger system |
US11013321 |
2004-12-17 |
US07168927B2 |
2007-01-30 |
Fred Brueckmann; Wiltrud Knoebl; Uwe Bruhns; Wolfgang Kochanowski |
A pressure exchanger system having at least two tubular chambers, in which a plurality of reversing valves reverse the flow paths of fluid flows through the at least two tubular chambers. At least one driven reversing valve alternately reverses the flow paths between a supply source, which supplies a high-energy high-pressure fluid, and the tubular chambers. In reversing the liquid flows and shutting off previously open flow paths, the driven reversing element in the reversing valve executes a discontinuous or variable movement sequence. |
223 |
Device for displacement of small liquid volumes along a micro-catenary line by electrostatic forces |
US10457375 |
2003-06-10 |
US07052244B2 |
2006-05-30 |
Yves Fouillet; Raymond Charles; Olivier Constantin; Hubert Jeanson |
The invention relates to a device for displacement of at least a small volume of liquid (5) under the effect of an electrical control, including a substrate (1) provided with first electrically conducting means (2), the device also comprising second electrically conducting means (3) arranged facing the first electrically conducting means (2), the first electrically conducting means and the second electrically conducting means possibly being connected to electrical power supply means to enable the application of electrostatic forces to the small liquid volume (5). The second electrically conducting means include at least one conducting wire (3) arranged parallel to the substrate and at a fixed distance from the substrate to enable displacement of the small volume of liquid (5) along said conducting wire (3) under the effect of the applied electrostatic forces. |
224 |
Information handling system including AC electromagnetic pump cooling apparatus |
US10925240 |
2004-08-24 |
US20060045755A1 |
2006-03-02 |
Brent McDonald; Daniel Jenkins |
An information handling system (IHS) is provided which is cooled via an electromagnetic pump. The pump pushes a heat conducting liquid metal fluid in a heat conducting path away from a heat producing device such as a processor. The EM pump is driven by an AC electric current supplied to a transformer. The AC driven transformer supplies both a magnetic field and an electric current to the fluid in the pump. The system is configured such that the magnetic field and the electric current in the fluid are substantially orthogonal. Each time the AC electric current reverses polarity, the magnetic field and the electric current also each change polarity to force fluid out of the pump in the same direction during both the positive and negative going portions of the AC electric current cycle. |
225 |
Getter compositions reactivatable at low temperature after exposure to reactive gases at higher temperature |
US11057806 |
2005-02-14 |
US20050169766A1 |
2005-08-04 |
Alessandro Gallitognotta; Luca Toia; Claudio Boffito |
Compositions containing non-evaporable getter alloys are provided which, after having lost their functionality in consequence of exposure to reactive gases at a first temperature, can then be reactivated by a thermal treatment at a second temperature that is lower than the first temperature. |
226 |
Method of forming a reactive material and article formed thereby |
US10338351 |
2003-01-07 |
US06923625B2 |
2005-08-02 |
Douglas Ray Sparks |
A method for preventing contamination, oxidation and gas absorption of reactive materials, and articles formed thereby. The method generally entails depositing a first layer of a reactive material and a second layer of a substantially nonreactive material so that the second layer protects the first layer from a surrounding atmosphere. For example, the first and second layers may be deposited to form a film on a surface within a chamber that is desired to be maintained in a vacuum during use of the article. The second layer is sufficiently thin such that appropriately heating the first and second layers causes the reactive material of the first layer to become interdiffused with the nonreactive material of the second layer, to the extent that at least a portion of the reactive material is able to react and getter gases from the surrounding atmosphere. |
227 |
Micro-fabricated electrokinetic pump |
US10366121 |
2003-02-12 |
US06881039B2 |
2005-04-19 |
David Corbin; Kenneth Goodson; Thomas Kenny; Juan Santiago; Shulin Zeng |
An electrokinetic pump for pumping a liquid includes a pumping body having a plurality of narrow, short and straight pore apertures for channeling the liquid through the body. A pair of electrodes for applying a voltage differential are formed on opposing surfaces of the pumping body at opposite ends of the pore apertures. The pumping body is formed on a support structure to maintain a mechanical integrity of the pumping body. The pump can be fabricated using conventional semiconductor processing steps. The pores are preferably formed using plasma etching. The structure is oxidized to insulate the structure and also narrow the pores. A support structure is formed by etching a substrate and removing an interface oxide layer. Electrodes are formed to apply a voltage potential across the pumping body. Another method of fabricating an electrokinetic pump includes providing etch stop alignment marks so that the etch step self-terminates. |
228 |
Hydraulic displacement machine |
US189695 |
1998-11-10 |
US6149391A |
2000-11-21 |
Andreas Pohl; Horst Rosenfeldt; Eckhardt Wendt; Klaus Buesing |
A hydraulic displacement machine that can operate as a pump or a motor in connection with an electrorheologic or magnetorheologic fluid includes a housing, a rotary piston arranged to rotate within a chamber in the housing, at least one displacement vane provided on the rotary piston, a plurality of field generating elements such as capacitor plate segments and/or coil arrangements that are each individually electrically energizable and that are arranged on the two sidewalls of the housing chamber distributed around the circumferential direction, and an actuator connected to each field generating element so as to move the elements of each pair selectively closer together and farther apart from each other. By applying an appropriate electric or magnetic field to the electrorheologic or magnetorheologic fluid between the field generating elements, the fluid is locally solidified in the "flow mode" to form a stationary seal plug within each fluid chamber between respective consecutive vanes. By moving the field generating elements of each pair closer together, the seal blockage is further solidified so as to additionally achieve a "squeeze mode" effect in the fluid. |
229 |
Getter assembly having porous metallic support and its use in a vacuum
apparatus |
US9138 |
1998-01-20 |
US6077046A |
2000-06-20 |
Adam M. Kennedy; Timothy S. Romano; Steven M. McCabe; Larry E. Cobb |
A getter assembly (38) includes a porous getter element (40) having an outer periphery (44), and a porous, thermally conductive, annular getter support (42) overlying the getter element (40) and contacting the outer surface (44) of the getter element (40). The getter assembly (38) further includes a wall (24) sized so that the annular getter support (42) is received within the wall (24) with a friction fit between an outer periphery (50) of the annular getter support (42) and an inner periphery of the wall (24). The getter support (42) supports the getter element (40) from the wall (24) and provides a thermally conductive pathway from the wall (24) to the getter element (40). The annular getter support (42) is typically a screen, a mesh, a felt, or a foam, which is deformable to conform to the inner wall (24) and to slide into the wall (24) with a friction fit that ensures good thermal contact. |
230 |
Pump system |
US2617 |
1993-01-11 |
US5310321A |
1994-05-10 |
Cornelius J. de Koning |
A pump system includes a displacement pump whose oscillating fluid pressure variations are connected to drive a membrane pump. The membrane pump in turn oscillates fluid in a fluid-filled vertical pipe connected to a fluid-filled commuting pipe. The displacement of fluid in the commuting pipe induces intake of a fluid to be pumped into the commuting pipe during an intake portion of the oscillation and also induces expulsion of the fluid to be pumped during the remaining portion of the oscillation. The commuting pipe is made long enough so that fluid drawn in during the intake portion does not pass into the vertical pipe but stays in the commuting pipe. A heat exchanger about the vertical pipe dissipates heat that may be passed to the fluid therein by conduction or convection. |
231 |
Process and appliance for conveying liquid or gaseous fluids |
US28450 |
1987-03-20 |
US4813851A |
1989-03-21 |
Chung-Hwan Chun; Georg Koppenwallner |
Process and appliance for conveying liquid or gaseous fluids, this process involving no mechanically movable propelling elements, but rather the formation, on the fluid that is to be conveyed, of interfaces with an additional fluid, and the application of a tension gradient at these interfaces, so that the so-called Marangoni effect is utilized for propelling the conveying stream. |
232 |
High voltage feedthrough for ion pump |
US810486 |
1985-12-19 |
US4687417A |
1987-08-18 |
Kurt Amboss |
Ion pump (10) has feedthrough (33) for electrical connection to anode post (32) within the pumping chamber. Opening (36) in the pumping chamber wall receives a portion of insulator (42). The insulator (42) has a flange (48) which is of larger diameter than the opening (36) so that sputtered cathode material cannot directly disposit on the outer and upper surfaces of the flange (48). |
233 |
Fluid-raising apparatus driven by low hydraulic head |
US801236 |
1985-11-25 |
US4643650A |
1987-02-17 |
Abdol-Hossein Khakzad-Ghomi |
A fluid-raising apparatus includes a compression chamber which receives liquid, from an elevated source, such that gas in the chamber is pressurized and used to lift fluid through a vertical conduit. When the chamber fills with liquid, a float lifts a drain plug so that draining commences automatically. The effluent passes through a discharge tube wherein, during draining, the liquid pushes on a piston. The piston, in turn, holds a liquid inlet valve closed until draining is complete. |
234 |
Apparatus for continuously pressure-feeding slurry |
US578789 |
1984-02-10 |
US4605356A |
1986-08-12 |
Kenji Uchida; Masakatsu Sakamoto; Makoto Saito; Yukishige Kamino |
Slurry consisting of water and solid material is fed to a plurality of supply chambers arranged in parallel to each other by a low pressure slurry pump, and the filled slurry is transferred to a transferring pipe under liquid pressure of a high pressure driving liquid pump. Also, to the upper and lower portions of the supply chambers are connected driving liquid supply/discharge pipes and slurry supply/discharge pipes having valves. The valves are selectively opened/closed in accordance with a detection of a float position within each supply chamber to thereby feed the slurry continuously under pressure. Upon the slurry pressure feeding, the valves connected to the supply chamber lower portion are prevented from closing due to a packing condition. |
235 |
Apparatus for continuous pressure feeding of slurry |
US578109 |
1984-02-08 |
US4536131A |
1985-08-20 |
Makoto Saito; Masakatsu Sakamoto; Kenji Uchida; Yukishige Kamino |
Slurry consisting of water and solid material is fed to fill a plurality of supply chambers arranged in parallel to each other, by the action of slurry pump. The filled slurry is forced to a transferring pipe by the liquid pressure of a high pressure driving liquid pump. A float is positioned on an interface between the slurry and driving liquid within the supply chamber. When a sensor for detecting the position of the float is inoperative due to an external turbulence or the like, a command signal is applied to selected valves in response to a period of time set in a timer. |
236 |
Pressure wave supercharger with rolling bearings for the rotor |
US469992 |
1983-02-25 |
US4500260A |
1985-02-19 |
Andreas Mayer; Adolf Niederer |
The pressure wave supercharger with rolling bearings for the rotor shaft has ducts in the air casing connecting the shaft space with the air induction duct in order to cool the two ball bearings mainly subjected to heating effects and located in the rotor side part of the shaft space. The rolling bearing on the driving belt side is a needle bearing. |
237 |
Two cycle per revolution wave compression supercharger |
US166730 |
1980-07-07 |
US4360316A |
1982-11-23 |
Christian J. Rahnke |
A supercharger for compressing air supplied to an engine, wherein the energy of the exhaust gas is used to increase the pressure of the air admitted to the engine, has a rotor with radially extending vanes that define a plurality of rotating cells therebetween. Exhaust gas inlet and outlet ports at one axial end of the rotor and air inlet and outlet ports at the opposite end of the rotor admit engine exhaust gas and ambient air to the rotor cells and permit the flow of exhaust gas and compressed air from the rotor cells. The inlet and exhaust ports of the exhaust gas port plate are correspondingly equal in size and symmetrically disposed around the rotor circumference. The inlet and exhaust ports of the air port plate are unsymmetrically arranged around the rotor circumference and are of unequal size. A first air inlet port has an air outlet port associated with a first compression cycle. The second air inlet port has an air outlet port associated with the second compression cycle. |
238 |
Floating power generation assemblies and methods |
US148777 |
1980-05-12 |
US4316704A |
1982-02-23 |
Peter C. Heidt |
Floating-on-a-body-of-water compressed-air-generating assemblies and methods are disclosed which are utilized to drive electrical generators powered by compressed air. The integrated assembly utilizes windmills, reciprocating float-linkage means, collapsible paddle blades, and at least one member selected from the water-motion-actuated group consisting of slosh boxes, sliding masses, rack-and-pinions, and combinations thereof. |
239 |
Gas compressor |
US89529 |
1979-10-29 |
US4316703A |
1982-02-23 |
Richard D. Kunzelman |
The specification discloses a gas compressor incorporating a rotating wheel with cavities therein, the cavities transferring gas into a chamber of elevated pressure while simultaneously using the cavities to transfer a liquid out of that chamber. |
240 |
Centrifugal advanced system for wave compression supercharger |
US99245 |
1979-12-03 |
US4309972A |
1982-01-12 |
James K. Vallance; Jeffrey A. Cook |
A wave compression supercharger comprises a rotor mounted for rotation about its longitudinal axis having axially disposed cells formed about its periphery, a shroud surrounding the rotor, a first port plate located between the rotor and an air duct that delivers ambient air to the supercharger rotor and delivers pressurized air to the air intake side of the engine. A second port plate located between the rotor and an exhaust duct carries low pressure gas from the rotor and high pressure engine exhaust gas to the rotor. A hydraulic cylinder has a piston mounted for sliding motion in the cylinder. A mechanical governor driven by the rotor of the supercharger controls a source of pressurized hydraulic fluid that is opened to the cylinder according to variations in the speed of the rotor. The piston is connected to a port plate and delivers a tangential force to the plate causing it to rotate with respect to the longitudinal axis of the rotor. An alternative embodiment causes a cam to be moved by the piston axially into engagement with cam surfaces formed on the port plate. When the cam is moved axially without rotation, the port plate assumes an advanced or retarded position with respect to the rotor. |