Abstract: Disclosed are an air duct assembly and a fan heater applying in the air duct assembly, which includes a volute tongue positioned in the volute forms an air duct with the volute. The air duct is configured with an air inlet and an air outlet. A cross-flow wind turbine positioned in the air duct introduce the airflow into the air duct from the air inlet, and blow out the airflow in the air duct through the air outlet. The volute includes a first volute tongue member, the size of the angle between the line connecting the root portion M of the first volute tongue member to the axis O of the cross-flow wind turbine and the line connecting the root portion N of the second volute tongue member to the axis O of the cross-flow wind turbine on the same cross-section is from 110° to 170°.

Abstract: This invention relates to a cross-flow wave making pump comprising an impeller shell forming a water intake and a water outlet, an impeller assembly pivotally connected to two ends of the impeller shell, and a motor used for driving the impeller assembly; wherein, the impeller assembly comprises an impeller used for driving a liquid flow, a first turntable and a second turntable respectively fixed at two ends of the impeller, wherein the first turntable is provided with a shaft rotatably mounted in the impeller shell, the second turntable is provided with a cavity used for receiving a rotor shaft of the motor. The embodiments of the present invention can provide a sufficient liquid-circulation in a container, and significantly reduce the dead zone where the liquid flows extremely slowly. Other embodiments are disclosed.

Abstract: A casting (52) for a support housing (50), including: a fuel manifold (56) comprising an a-stage gas gallery (80) and a b-stage gas gallery (82); a-stage and a b-stage rocket bases (60) integrally cast with the fuel manifold (56), the a-stage gas gallery (80) in fluid communication with the a-stage stage rocket bases and the b-stage gas gallery (82) in fluid communication with the b-stage rocket bases; and one oil tube passageway (64) for each fuel rocket base (60), each oil tube passageway (64) spanning from an upstream end (66) of the fuel manifold (56) to an interior (68) of a respective fuel rocket base (60). Each oil tube passageway (64) is disposed radially inward of an inner perimeter (102) of the b-stage gas gallery (82).

Abstract: Provided is a drive shaft structure including: a drive shaft which transmits the drive force; and a seal member which is provided to come into close contact with the outer peripheral surface of the drive shaft. In the drive shaft structure, the drive shaft includes a second surface located closer to the inner side of the radial direction than the outer peripheral surface, and the second surface includes an index mark used to confirm information on the rotation of the drive shaft or information on the displacement thereof in the axial direction.

Abstract: A vehicle propulsion system having a manifold in fluid communication with a cross flow fan which adjusts to control an amount lift generated by a plurality of airfoils providing lift from air from the cross flow fan.

Abstract: A ventilation device uses a cross-flow fan and one or more filters, where the filter preferably has a J-shape that at least partially surrounds the rotor of the cross-flow fan. In one embodiment, the filter includes a plurality of pleats, preferably along a bottom surface of the filter. The filters preferably remove particles, undesired gases, and micro-organisms. A filtration and ventilation system with at least one first ventilation device and at least one second ventilation device larger than the first ventilation device, as well as a method of filtering contaminants out of air using a personal ventilation device, are also disclosed.

Abstract: A cross-flow fan that variably maintains a distance between a blade and a fluid flow guide by varying a height of an outer edge and an air conditioner having the cross-flow fan are provided. Therefore, a noise and a peak value of a spectrum between the blade and the outer edge can be reduced.

Abstract: Vehicle propulsion systems and methods of propulsion are disclosed, as well as embodiments of fans and airfoils, technology that in some applications of the invention can provide both lift and thrust, and propulsion via cross flow fan, manifold and a plurality of airfoils. In some embodiments the invention is directed to the production of lift and thrust, and propulsion generally, based from air produced by a cross flow fan in accordance with the invention disclosed herein. In still further embodiments, lift and thrust may yet be generated from air produced from the cross flow fan even when unpowered, such as in a loss of power or in a stall condition.

Abstract: A turbocharger (10) for an internal combustion engine includes a compressor (12) having an impellor (16) disposed in a compressor chamber (18). The compressor chamber (18) receives fluid flow. A flow regulation mechanism (30) is disposed in the compressor (12) and includes a diffuser cover (32) and a recirculation gate (36). The diffuser cover (32) is moveably disposed in a diffuser passage (34) from a first position permitting fluid flow through the diffuser passage to a second position at least partially impeding the fluid flow. The recirculation gate (36) is moveably disposed in the compressor chamber (18) from a first position closing a recirculation groove (48) to a second position opening the recirculation groove to fluid communication with the compressor chamber.

Abstract: A personal ventilation system uses a cross-flow fan and one or more filters, where the filter preferably has a cylindrical or elongated elliptical shape that at least partially surrounds the rotor of the cross-flow fan. The filters preferably remove particles, undesired gases, and micro-organisms.

Abstract: A cooling fan is provided that does not place limitations on the installation conditions for the fan, is capable of cooling a backlight unit of a display panel with high efficiency, and produces less noise during operation. Also provided is an image display apparatus equipped with the cooling fan. The cooling fan includes a fan rotator composed of a rotational shaft that is rotationally driven by a driving motor and two vanes that have parallel revolution shafts that rotate together with the rotational shaft, are freely rotatable on the shafts, face one another, and revolve around the rotational shafts and a vane angle control unit that implements control so that each vane has a maximum rotation angle when a revolution angle of the vanes is in a vicinity of a first revolution angle and each vane has a rotation angle of 0° when a revolution angle of the vane is in a vicinity of a second revolution angle that is perpendicular to the first revolution angle.

Abstract: A fan includes at least one fan frame, at least one impeller and at least one active flow-control device. The fan frame includes at least one air inlet and at least one air outlet. The impeller is disposed in the fan frame. The active flow-control device, is disposed on the fan frame for adjusting the size of the air inlet or the size of the air outlet according to demands.

Abstract: A cutoff for a blower housing. The cutoff comprises a cutoff having an edge, the edge includes first and second ends and a midsection. The midsection includes an acoustical reduction section. Each end includes an efficiency enhancing portion curving from a first smaller radial dimension to a second greater radial dimension proximal the acoustical reduction section. The acoustical reduction section is located between the first and second ends and has a greater third radial dimension greater than the first or second radial dimensions.

Abstract: A modified cross flow fan 10, intake duct 25 and exhaust duct 26 combination has the intake duct 25 spanning 160°-180° of the anterior circumference of the fan 10. The location of the upper surface 27 adjacent fan 10 is determined by a substantially increasing power requirement and a substantial diminishing of exhaust gas outputs. The upper surface 26 near the fan 10 preferably has a curvature similar to the curvature of blades 12. The lowermost location of the lower surface 28 of the intake duct 25 is at the point of an increase in the relative vacuum of the external intake gas pressure. The fan 10 has blades 12 creating an internal working space ratio of at least about 5:1. Blade 12 count will vary with intended usage and size, e.g., from 16-60 or more. Blades 12 are preferably angled at 50°-60° from the radius line of the fan 10 and have an inner surface curvature of 60°-80°. The exhaust duct 26 spans 100°-120° of the fan's circumference at the lower rear of fan 10.