Class / Patent application number | Description | Number of patent applications / Date published |
415143000 | PLURAL RUNNERS HAVING DIFFERENT TYPE FLOW PATHS | 12 |
20090142183 | Turbo vacuum pump - A turbo vacuum pump of the present invention includes a suction part for sucking gas in an axial direction; a discharge section in which rotating impellers and stationary impellers are alternately arranged; a rotating shaft for rotating the rotating impellers; and a turbine impeller part fixed to the suction side end face of the rotating shaft. The rotating impellers include one or more turbine impellers for discharging the sucked gas in the axial direction, and one or more centrifugal impellers, located downstream of the one or more turbine impellers, for further discharging the discharged gas by a centrifugal drag effect. The one or more centrifugal impellers are fixed to the rotating shaft passing therethrough. The one or more turbine impellers are included in the turbine impeller part. | 06-04-2009 |
20090208327 | Electric blower - An electric blower includes an electric motor, a first fan, a second fan, a first casing and a second casing. The electric motor includes a motor body and a rotation shaft extending from the motor body only on one axial side of the motor body. The first fan is located to the one axial side of the motor body and defines a first axis of rotation aligned with the rotation shaft. The second fan is located to the one axial side of the motor body and further than the first fan from the motor body in an axial direction. The second fan defines a second axis of rotation aligned with the rotation shaft. The first fan and the second fan are driven by a driving force generated by the electric motor. The first fan is disposed in the first casing. The second fan is disposed in the second casing. | 08-20-2009 |
20100111676 | Compressor for an Exhaust Gas Turbocharger - A compressor for an exhaust gas turbocharger includes an exhaust gas turbocharger housing having a gas intake port, which substantially radially encloses a gas inflow area. Disposed in the exhaust gas turbocharger housing is a compressor wheel, which can be driven by an exhaust gas turbine. The compressor wheel bounds the gas inflow area in the gas intake port in the direction of flow of a gas. The gas intake port includes indentations on a side of the inflow area. The flow noise in normal operation of the compressor and the acoustic effect in the case of pumping are reduced with the indentations. | 05-06-2010 |
20110008153 | DRAIN PUMP - A drain pump that maintains pump performance and reduces noise and vibration accompanying water scooping of a rotary impeller includes a large-diameter blade divided into an inner blade and an outer blade. A radius of an impeller scooping up water is the sum of the lengths of the inner and outer blades in a radial direction. The large-diameter blade is divided at a position where the amount of generated air bubbles is large, and the inner and outer blades are alternately disposed. Accordingly, air bubbles are escaped to a downstream side in a rotational direction, so that the intensity of the collision between the blades and air bubbles is decreased reducing noise caused by the burst of air bubbles and vibration caused by a collision load of the flow of a gas-liquid mixture. | 01-13-2011 |
20110027071 | MULTI-STAGE INDUCER FOR CENTRIFUGAL PUMPS - An inducer assembly comprising at least two sets of rotating and non-rotating helical inducer vanes. As the fluid enters the inducer, the fluid moves up through a first set of rotating vanes, and gains rotational momentum. The fluid then enters a second set of non-rotating vanes that use the rotational momentum of the fluid to progress the fluid forward while removing the rotation and consequently decreasing the net positive suction head required. The inducer is positioned at the inlet of a cryogenic centrifugal pump. Embodiments of the cryogenic centrifugal pump use a vertical rotational axis and include a thrust equalizing mechanism device to balance hydraulic thrust. | 02-03-2011 |
20110044799 | FAN APPARATUS - A fan apparatus includes first axial fans each arranged with a rotation axis thereof extending perpendicularly or substantially perpendicularly to a mounting surface provided in a case designed to contain an electronic device; and second axial fans each having a rotation axis coinciding with the rotation axis of a separate one of the first axial fans. The first axial fans are arranged to rotate in a first rotation direction to introduce, send, or discharge air into, inside, or out of the case, while the second axial fans are arranged to rotate in a second rotation direction opposite to the first rotation direction to cause a flow of air in the same direction in which the first axial fans cause a flow of air. Both of the first axial fans and the second axial fans either share a common single-piece housing or have separate housings joined together. | 02-24-2011 |
20120057965 | TURBOMACHINE WITH MIXED-FLOW STAGE AND METHOD - In one embodiment, a turbomachine for imparting energy to a multiphase fluid is provided. The turbomachine comprises a casing having an inlet and an outlet; an axial stage part comprising at least one axial stage; a mixed-flow stage part comprising at least one mixed-flow stage fluidly connected to the axial stage part; and a centrifugal stage part comprising at least one centrifugal stage fluidly connected to the mixed-flow stage part. The axial stage is defined by an angle between an axial impeller outlet flow and an axis parallel to a rotational axis of the shaft having a value between 0° and 5°, the mixed-flow stage by an angle having a value between 5° and 80°, and the centrifugal stage by an angle having a value between 80° and 90°. | 03-08-2012 |
20120189431 | COMPRESSOR ARRANGEMENT - Compressor arrangement having an axial compressor and a radial compressor which are arranged axially one behind the other on a common driveshaft which can be coupled to a drive and which each have a compression fluid input and a compression fluid output. The axial compressor is provided with first control elements and the radial compressor is provided with second control elements. The first control elements and second control elements are controllable separately so that the axial compressor and the radial compressor are controllable separately. | 07-26-2012 |
20120201659 | MULTIPLE MOTOR/PUMP ARRAY - According to one embodiment, a multiple motor and/or pump array module for a drilling tool comprises a plurality of motors and/or pumps extending axially along generally parallel axes wherein the pumps are positioned along the axes next to each other in a parallel manner in generally the same axial location. | 08-09-2012 |
20130189082 | Diffusion Type Combination Fan - A combination fan includes an inner impeller unit, an outer impeller unit and a driving unit. The inner impeller unit is rotated by the driving unit and includes a rotation member, a ring-shaped member and a plurality of inner blades. The outer impeller unit is rotatable in concert with the inner impeller unit and includes a connecting member, an outer wall and a plurality of outer blades. The driving unit includes a propeller shaft connected with the rotation member to rotate the inner impeller unit, and a drive mechanism connected with the propeller shaft to rotate the propeller shaft. Thus, the inner impeller unit and the outer impeller unit are rotated by the driving unit to guide an air flow in different directions simultaneously. | 07-25-2013 |
20140086730 | FAN AND PRESSURE-INCREASING BLADE ASSEMBLY THEREOF - A fan includes a frame and an impeller including a hub, a plurality of first blades, a first ring-shaped structure, and a plurality of second blades. The first blades are disposed around the hub. The hub and the first blades are surrounded by the first ring-shaped structure connected with the ends of the first blades, and a central area is structured therebetween. The second blades are connected with an outer rim of the first ring-shaped structure. The frame includes a base, an axle tube portion disposed on the base, and a receiving portion. The impeller is disposed on the axle tube portion. The receiving portion includes plural third blades disposed around the base corresponding to the central area. The first and third blades are matched to each other to be assembled for transforming a tangent velocity into a static pressure to increase the pressure generated by the central area. | 03-27-2014 |
20150330396 | EXHAUST-GAS TURBOCHARGER - An exhaust-gas turbocharger ( | 11-19-2015 |