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| Number | Title | Issue Date |
| 8052386 | Mixed flow roof exhaust fan A mixed flow fan wheel has a convex hub, an axially-spaced away concave annular shroud, and a plurality of angularly distributed blades extending between and interconnecting the hub and shroud, all which cooperatively define a plurality of inter-blade flow channels.... | 11/08/2011 |
| 7419364 | Nose cone for a turbomachine A nose cone for a turbomachine, such as a turbojet in particular, the cone being mounted on the end of a shaft carrying fan blades and being associated with a controlled axial displacement mechanism, thereby making it possible to modify the axial position of the con... | 09/02/2008 |
| 7352094 | Equipment fan An improved fan useful for ventilating applications in motor vehicles features a modular structure, which facilitates quick replacement of any components likely to fail. A first module (110) is intended for permanent installation on the part that is to be coo... | 04/01/2008 |
| 7329091 | Heat dissipation fans and housings therefor A heat dissipation fan and a housing thereof. The heat dissipation fan includes a housing and a plurality of blades. The housing includes an outer frame, a base, and a plurality of air-guiding elements. The base is disposed in the outer frame, supporting the blades ... | 02/12/2008 |
| 7311492 | Duct fan A duct fan comprises a housing (4) having substantially the shape of a rectangular parallelepiped and inside thereof an impeller (5) and a motor for rotation thereof. The fan has also a member for connecting an inlet side of the housing to an upstream ... | 12/25/2007 |
| 7275910 | Outlet airflow direction control unit An outlet airflow direction control unit mainly includes a frame and a fan mounted in the frame. The frame has an inlet and an outlet via which an amount of fluid flows into and out of the frame, and is internally provided at predetermined positions with a plurality... | 10/02/2007 |
| 7241111 | Contoured disk bore A turbine disk comprising a disk bore disposed about a centerline, the disk bore comprising a bore width, and a web extending radially away from the disk bore wherein the disk bore comprises in cross-section a contoured shape comprising a contour depth. ... | 07/10/2007 |
| 7234919 | Heat-dissipating fan A heat-dissipating fan with a plurality of upward rotor blades is provided. The heat-dissipating fan includes a housing, an impeller having a hub and a plurality of rotor blades disposed around the hub, and a base disposed inside the housing for supporting the impel... | 06/26/2007 |
| 7207767 | Inducer, and inducer-equipped pump The present invention is concerned with an axial-flow or mixed-flow inducer (3) which is disposed upstream of a main impeller (2) for improving the suction capability of a pump such as a turbopump. In the inducer (3), a blade angle (βbt | 04/24/2007 |
| 7190578 | Plasma display apparatus A plasma display apparatus comprising a chassis base, a plasma display panel coupled to a first side of the chassis base, and a driving board, for driving the plasma display panel, attached on a second side of the chassis base opposite to the first side of the chass... | 03/13/2007 |
| 7168918 | High performance cooling fan A cooling fan comprises a rotor configured to generate airflow. The cooling fan further comprises an outlet guide vane adapted to receive the airflow generated by the rotor and to orient the airflow in a substantially axial direction relative to the rotor. The cooli... | 01/30/2007 |
| 7150600 | Downhole turbomachines for handling two-phase flow Disclosed is a submersible pump assembly for handling two-phase flow. The pump assembly preferably includes a housing and a first stage. The first stage includes an impeller assembly and a diffuser assembly, which are collectively configured to produce a diagonal fl... | 12/19/2006 |
| 7110255 | Heat-dissipating device and a housing thereof A heat-dissipating device and a housing thereof. The housing includes a passage for guiding an air stream flowing from an opening to another opening, wherein an inner wall of the passage at at least one of the opening sides extends radially outwards with a rotationa... | 09/19/2006 |
| 7094030 | Contoured disk bore A turbine disk comprising a disk bore disposed about a centerline, the disk bore comprising a bore width, and a web extending radially away from the disk bore wherein the disk bore comprises in cross-section a contoured shape comprising a contour depth. ... | 08/22/2006 |
| 7075646 | Smoke detectors particularly ducted smoke detectors The present invention relates to the detection of particles suspended in fluid particularly smoke detectors suitable for mounting on ducting for the early detection of smoke created by unwanted pyrolysis or combustion of materials in a protected area or fire zone to... | 07/11/2006 |
| 7053512 | Ventilation device with electromagnetic coupling Ventilation devices, in particular for electric motor drives regularly comprise a fan wheel (1), which is driven by a shaft via an electromagnetic induction coupling. In order to reduce the complexity of manufacture, a stack of magnetic sheets (2) is c... | 05/30/2006 |
| 7048499 | In-line centrifugal fan An inline centrifugal mixed flow fan (20) includes an axially extending intake conduit (22). An inlet cone (28) is disposed at an intake end (24). An impeller (30) is disposed downstream of the inlet cone and includes a centrally d... | 05/23/2006 |
| 7044720 | Fan motor A fan motor with an increased amount of air drawn in toward fan blades so as to obtain a desirable airflow characteristic. A fan motor includes a rotor and a plurality of fan blades provided radially therefrom. Each fan blade is provided with an air intake part on a... | 05/16/2006 |
| 7021895 | Fan module with integrated diffuser Disclosed is a fan module. In one embodiment, the fan module includes a fan having an inlet end and an exit end, and a fan housing in which the fan is positioned, the fan housing including at least one angled interior wall adjacent the exit end of the fan that diffu... | 04/04/2006 |
| 7011501 | Energy generating system A system (1) designed to generate energy with the aid of, primarily, sea currents, comprising a rotation body (4) having a front inlet side (2) and a rear outlet side (3), and at least one transfer member (6) connected between the ... | 03/14/2006 |
| 6997684 | Fan motor with digital controller for applying substantially constant driving current The invention relates to a fan arrangement comprising a radial or diagonal fan (370) with which a direct current motor (32) is associated as drive motor, further comprising a digital control element (23, 24) such as a microcontroller or micropro... | 02/14/2006 |
| 6962479 | Compound centrifugal and screw compressor A compound centrifugal and screw compressor comprising two separate sections. The first section is a conventional centrifugal compressor body 2 with a plurality of radial vanes 3 and 4 on the front face. The second section of the compressor is a... | 11/08/2005 |
| 6948912 | Heat dissipation device and its impeller thereof A heat dissipation device and a blade structure thereof are employed to increase input air volume, A new impeller, mounted on the driving means, includes a hub and a plurality of rotor blades arranged around the hub. Preferably, the inner side of each rotor blades e... | 09/27/2005 |
| 6935843 | Fan blade with improved mix flow fan The present invention relates to a structural reinforcement of the fan wheel of a mixed flow fan. The structure of the fan wheel comprises a hub and several blades attached to the outer rim of this hub. One side of the hub consists of a hollow space, the other side ... | 08/30/2005 |
| 6910861 | Turbomolecular vacuum pump with the rotor and stator vanes A turbomolecular vacuum pump (1) has an inlet (3) and an outlet (4) and rotor and stator vanes (5 and 6), situated between the inlet and outlet. The rotor vanes (6) have front sides (11) and rear sides (12) in ... | 06/28/2005 |
| 6863500 | Blast fan Disclosed is a blast fan for blowing air in a centrifugal direction thereof. The blast fan comprises a hub coupled to a rotating shaft of a motor, and a plurality of blades equally spaced and arranged around the outer peripheral surface of the hub. More particularly... | 03/08/2005 |
| 6447255 | Gas turbine nose cone assembly A nose cone assembly (30) for a gas turbine engine (10) comprising a spinner (34) having a generally conical forward portion (33) and a base portion (35). The base portion (35) of the spinner (34) is disposed radially inside an extended profile of the for... | 09/10/2002 |
| 5882178 | Impeller and shaft coupling An improved compressor shaft and impeller for an overhung centrifugal compressor are disclosed that enable the hydraulic attachment and release of the impeller and shaft. The shaft and impeller are also keyed together to enhance their torsional load carry... | 03/16/1999 |
| 5695318 | Diagonal fan This invention relates to a diagonal fan with a truncated cone shaped hub (4a) of the fan wheel (4) and a truncated cone shaped air housing (2). The angle of the truncated cone of the hub (4a) and of the truncated cone of the air housing (2) are relativel... | 12/09/1997 |
| 5549451 | Impelling apparatus A pumping device is provided having a housing comprised of an inlet housing (70) and a discharge housing (98). The inlet housing (70) contains an impeller device (80) that is comprised of a conical structure (82) rotatable about a rotational axis (86). Th... | 08/27/1996 |
| 5419679 | Laminar flow fan and electrical apparatus incorporating fan A laminar flow fan is adapted to fit into a the internal cavity of a fan housing (70). The fan comprises a stack of parallel disk elements (12, 14, 16, 18, 20, 22) mounted for rotation on a motor (40) with the diameters of the disk elements varying within... | 05/30/1995 |
| 5372477 | Gaseous fluid aspirator or pump especially for smoke detection systems A gaseous fluid aspirator/pump apparatus including a rotary impeller (10) with radially extending blades, the impeller being mounted in a housing having a gaseous fluid inlet and outlet wherein gaseous fluid moving from the inlet (15) to the outlet (14) i... | 12/13/1994 |
| 5332355 | Impelling apparatus This invention relates to an impelling device having a suction casing having an axially located intake port, and providing a conically shaped suction cavity, and an impeller located within the conically shaped suction cavity having a conically shaped impe... | 07/26/1994 |
| 5266009 | Impeller structure for water jet propelled boat A water jet propelled boat is equipped with a water intake opening, a water jet outlet, and with a mixed flow type impeller, where the above mentioned water intake opening and the above mentioned water jet outlet are connected by a water passage with the ... | 11/30/1993 |
| 5224833 | Fan for a gas turbine engine air intake A ducted fan gas turbine engine spinner is so configured so as to be generally outwardly flared at its downstream end. The flared portion provides a decrease in the local axial velocity of the air flow over the spinner. This in turn leads to the reduction... | 07/06/1993 |
| 5213474 | Pump unit A vacuum pump, denoted "VUMP", comprises a pair of nested conical or bell-shaped housings, wherein at least the outer bell-shaped housing forms a part of the pump chamber and has a central inlet. The impeller structure of the pump comprises a circular ser... | 05/25/1993 |
| 5167489 | Forward swept rotor blade A rotor blade includes a root, tip, leading edge, trailing edge, forward surface, and aft surface, and a pitch section disposed equidistantly between the root and tip. The blade has a forward sweep from at least the pitch section to the blade tip relative... | 12/01/1992 |
| 4909711 | Small fan with electric drive motor A fan is disclosed comprising an electric drive motor having a shaft with an impeller coaxially disposed thereon, the impeller configured to suck axially and to blow with radial directional components and including a hub which is turned down over the moto... | 03/20/1990 |
| 4895489 | Axial flow fan An axial flow fan has a casing having an air flow passage therein which terminates at one end in an air inlet port and at the other end in an air outlet port. A hub carrying fan blades is rotatably disposed within the casing and rotationally driven by a m... | 01/23/1990 |
| 4838759 | Cavitation-resistant inducer An improvement in an inducer for a pump wherein the inducer includes a hub, a plurality of radially extending substantially helical blades and a wall member extending about and encompassing an outer periphery of the blades. The improvement comprises formi... | 06/13/1989 |
