Quotables
"To place a man in a multi-stage rocket and project him into the controlling gravitational field of the moon where the passengers can make scientific observations, perhaps land alive, and then return to earth--all that constitutes a wild dream worthy of Jules Verne. I am bold enough to say that such a man-made voyage will never occur regardless of all future advances."
Lee deForest, American radio pioneer ; 1957
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| Number | Title | Issue Date |
| 8162591 | Multistage compressor for a gas turbine, comprising discharge ports and injection ports to stabilize the compressor flow A multistage compressor for a gas turbine, having a compressor housing, guide vanes, impeller vanes, a hub area, discharge ports, and injection ports for stabilizing the compressor flow, wherein the discharge ports are situated at least one stage downstream from the... | 04/24/2012 |
| 8123459 | Impeller, fuel pump having the impeller, and fuel supply unit having the fuel pump A fuel pump has substantially coaxial outer and inner pump chambers. An impeller has partition walls correspondingly to the inner pump chamber to define inner vane grooves. A rear surface is located at a rear side in a rotative direction of each inner vane groove. A... | 02/28/2012 |
| 8075247 | Centrifugal impeller with internal heating An internal heating arrangement for a centrifugal impeller for a gas turbine engine is provided having at least one heating passage extending through into the rotor for directing air bled from the rotor exit along the backface and forwardly through the impeller.... | 12/13/2011 |
| 7828509 | Fuel pump for engine A fuel pump includes a bearing element disposed in proximity to an impeller. The bearing element is configured to form a fuel seal with the impeller and to drain fuel leaked from the pump chamber back into the pump chamber. The bearing element minimizes leakage of f... | 11/09/2010 |
| 7575411 | Engine intake air compressor having multiple inlets and method A compressor assembly (404) includes a compressor housing (412) having a main inlet bore (424) and a secondary inlet passage (422) that has an increasing flow cross-sectional area. The secondary inlet passage (422) is positioned in... | 08/18/2009 |
| 7476076 | Centrifugal fan A centrifugal fan includes a scroll casing having first and second flat base walls, and a circumferential side wall. An air inlet is formed on a center portion of the first base wall and an exhaust port is formed on the circumferential side wall. An airflow correcti... | 01/13/2009 |
| 7407364 | Turbocharger compressor having ported second-stage shroud, and associated method A two-stage radial compressor having a ported second-stage shroud, forming a passive surge control system. Thus, some proportion of the fluid is allowed to flow between the second-stage of the compressor in the vicinity of the impeller blade tips, through a port in ... | 08/05/2008 |
| 7374394 | Multifunctional back-flowing strong-suction blower A multifunctional back-flowing strong-suction blower exhibits low energy consumption, mass airflow, enhanced capability of handling polluted material, high efficiency, and low noise. The strong-suction blower may also reduce the risk of pollution and corrosion of th... | 05/20/2008 |
| 7354009 | Sewage pump A sewage pump includes a motor, a main shaft, an upper impeller, a lower impeller, a grinding wheel, a top cap, an upper bearing base with an upper mounting plate, an upper bearing base, a tube body with a wire inlet connector, a lower bearing base, a lower bearing ... | 04/08/2008 |
| 7339126 | Variable differential adjustor A variable differential adjustor for a fluid pressure-actuated switch, with the fluid, in the preferred form of the invention, being air. The restrictor has a restrictor housing having a passage through which a pressure source has a portion which passes on its way t... | 03/04/2008 |
| 7261513 | Centrifugal compressor A centrifugal compressor has a housing assembly and an impeller rotatably connected to the housing assembly. Gas introduced into the housing assembly by rotation of the impeller is compressed at least by centrifugal force. One aspect of the present invention is that... | 08/28/2007 |
| 7229243 | Compressor A compressor for compressing a gas comprises an impeller wheel (1) mounted within a housing (2) defining an inlet and an outlet (6). The inlet comprises an outer tubular wall (7) extending away from the impeller wheel in an upstream direc... | 06/12/2007 |
| 7231140 | System for removing snow and ice from a surface A system for removing snow and ice from a surface that includes a fan and a heating element contained within a hollow cavity open at one end, and a hollow duct positioned above the hollow cavity. The hollow duct is open at both ends; one end is positioned directly a... | 06/12/2007 |
| 7112033 | Hygienic mechanical seal flushing system for pure liquids in sanitary centrifugal pumps A sanitary centrifugal pump with a hygienic mechanical seal flushing system. The pump has a housing with a pumping chamber defined therein. An impeller is at least partially contained in the housing and is connected to a shaft for rotation. The rotation of the impel... | 09/26/2006 |
| 7097414 | Inducer tip vortex suppressor Embodiments of the invention provide a method, device, and turbopump configured to suppress higher order cavitations at an inducer tip in a turbopump. An inducer having a tip is rotated, and a first flow is induced axially through the inducer at a first velocity. A ... | 08/29/2006 |
| 7094016 | Multi-phase flow pumping means and related methods A method of pumping and related arrangement for multi-phase fluid flow wherein a centrifugal pump is used for the suction and delivery of the multi-phase fluid which has a fluid communication providing portion to provide a communication of fluid bled from the outlet... | 08/22/2006 |
| 7083379 | Compressor A compressor for compressing a gas comprises an impeller wheel (1) including a plurality of vanes (4) rotatably mounted within a housing (2). The housing (2) has an inner wall defining a surface (5) located in close proximity to ra... | 08/01/2006 |
| 7066712 | Turbofan and air conditioner having the turbofan A turbofan to reduce noise through a suppression of turbulent air flow at an outlet thereof and also to guide the air discharged from the outlet in a specific discharging direction, and an air conditioner equipped with the turbofan to improve an efficiency of a heat... | 06/27/2006 |
| 7025557 | Secondary flow control system The present invention is a system (20) for controlling various fluid flows, e.g., secondary fluid flows including cavitating fluid flows, typically developed along the shroud line and usually in or around a leading edge (21) within a flow channel (2... | 04/11/2006 |
| 7021058 | Supercharging air compressor for an internal combustion engine, internal combustion engine and method for that purpose A supercharging air compressor for an internal combustion engine, having a compressor wheel which is rotatably mounted in a compressor inlet duct, and to which combustion air can be fed via the compressor inlet duct. A partial stream of the compressed supercharging ... | 04/04/2006 |
| 6945748 | Centrifugal compressor with channel ring defined inlet recirculation channel A centrifugal compressor includes an annular inlet air recirculation channel having a smoothly variable cross section extending from a first slot at a forward end of the channel adjacent an inlet member to a second slot at a rearward end of the channel beyond an inl... | 09/20/2005 |
| 6935833 | Recirculation structure for turbo chargers Recirculation structure for turbocompressors, having a ring chamber which is arranged in the area of the free blade ends of a blade ring largely upstream of the latter and adjoins the main flow duct. A plurality of guiding elements are arranged in the ring chamber d... | 08/30/2005 |
| 6932563 | Apparatus, system and method for minimizing resonant forces in a compressor A buffer chamber and outlet guide provide an air path from an intake passage in a compressor housing to an upstream position relative to an intake port of the compressor. Surging is minimized during low airflow conditions while cyclic forces on the blades of the imp... | 08/23/2005 |
| 6898867 | Air compression variable heating system A compressed air supply system for an air drying device such as a blow-off air knife or compressed air manifold with nozzles directed at articles passing on a conveyor therebeneath is provided with a recirculation loop. An adjustably variable portion of the compress... | 05/31/2005 |
| 6881025 | Suction cup vortex attractor A vortex generating apparatus has the capability of attracting and removably adhering one or more solid objects, with the improvement of being able to removably adhere to non-planar surfaces, e.g., concave or convex surfaces and/or inside and outside corners. Genera... | 04/19/2005 |
| 6699008 | Flow stabilizing device The present invention is a device (100) for at least partially stabilizing an unstable fluid flow within a flow channel (103) by capturing at least a portion of the unstable fluid within a vaneless diffuser having a diffuser slot (104). The present invent... | 03/02/2004 |
| 6688845 | Electric pump for the recirculation of water "Electric pump for the re-circulation of water". It includes a suction chamber (1) connected by a communication conduit (3), as well as a filter vessel (5), into which the water drawn in enters by an open upper inlet (6) and exits by multiple small orific... | 02/10/2004 |
| 6672826 | Compressor surge control apparatus Apparatus for compressing fluid flow and for controlling said flow, comprising in combination, a casing having an interior, an impeller rotating within said interior between a fluid supply zone and pressurized fluid discharge zone, fluid flow control memb... | 01/06/2004 |
| 6648594 | Turbocharger A turbocharger for an internal combustion engine comprises an air intake, a compressor, a compressor housing (2), a plurality of bypass channels (1) formed in the compressor housing (2) providing a short cut to air from the air intake into the turbine, an... | 11/18/2003 |
| 6623239 | Turbocharger noise deflector A turbocharger having a bypass port compressor, with a center channel that flows directly into the compressor wheel, and an annular channel which acts as a bypass and provides flow either into or out of the compressor wheel, with an inner deflector having... | 09/23/2003 |
| 6582185 | Sealing system A sealing system to prevent loss of a process fluid from a device having a device opening and a rotating member operable for rotational movement within the device opening. A rotary shaft seal such as a labyrinth seal, seals the rotating member in the devi... | 06/24/2003 |
| 6554568 | Exhaust turbocharger for an internal combustion engine In an exhaust turbocharger for an internal combustion engine including a turbine and a compressor, which is driven by the turbine, wherein the compressor comprises a compressor impeller in a flow duct, a transfer component with flow passages extends radia... | 04/29/2003 |
| 6517309 | Pumping apparatus and methods A pumping system including a pump having an inlet and an outlet, an inlet conduit connected to the inlet of the pump for the inlet flow of fluid to the pump. A delivery conduit connected to the outlet of the pump for the outlet flow of fluid from the pump... | 02/11/2003 |
| 6468028 | Vertical pump with oil lubricant; C-seal for pump; and pump with threaded shaft position adjustment A centrifugal pump includes a C-shaped sealing assembly including an annular spring disposed between opposing legs of a base member. The spring biases the legs away from one another into sealing positions. In other embodiments, a vertical pump may be prov... | 10/22/2002 |
| 6454523 | Spa with double sealed pump A water pool apparatus, such as a portable spa, pool, hot tub or recirculating bath tub having a double seal configuration. The water pool apparatus has a water recirculation system which includes a centrifugal pump. The centrifugal pump has a double seal... | 09/24/2002 |
| 6447241 | Method and apparatus for expanding operating range of centrifugal compressor In a centrifugal compressor, a housing is provided which has an annular treatment cavity in a shroud wall. The shroud wall has a first opening providing communication between an installed zone of an impeller and the treatment cavity, and a second opening ... | 09/10/2002 |
| 6361270 | Centrifugal pump for a gas turbine engine A centrifugal pump for a gas turbine engine, including a housing having a fluid inlet port for receiving fluid at an initial pressure and an interior chamber defining a central axis. An impeller disk disposed within the interior chamber of the housing and... | 03/26/2002 |
| 6309174 | Thrust bearing for multistage centrifugal pumps A pump has a thrust bearing has a casing with an inlet port and a discharge port. A shaft is positioned within the pump. A thrust bearing is coupled to the shaft. A pressure alterable bearing cavity is located within the casing. The pressure alterable cav... | 10/30/2001 |
| 6283726 | Radial blower, particularly for heating and air conditioning systems in automobiles A radial blower, particularly for heating and air-conditioning systems for automobiles, has a spiral blower housing that is provided with an air intake (5) in a housing lateral wall and with an air outlet out of the spiral housing. A blower drive motor fo... | 09/04/2001 |
| 6196789 | Compressor An MWE compressor comprising a housing defining an inlet and an outlet, and an impeller wheel rotatably mounted in the housing such that on rotation of the wheel gas within the inlet is moved to the outlet. The housing has an inner wall defining a surface... | 03/06/2001 |
