Abstract: A turbomachine includes at least one rotor (6), at least one stator (7), and a casing (1), with the rotor (6) comprising several rotor blades (8) attached to a rotating shaft, and with the stator (7) being provided with stationary stator blades (9), the casing (1) being passed by a fluid flowing through the rotor (6) and stator (7). Provision is made for the removal of fluid on at least one blade (8, 9) of a blade row of the rotor (6) and/or the stator (7) on non-axially symmetrical, aerodynamically critical locations on blade tip and annulus surfaces (SRO).

Abstract: An apparatus is provided for generating electricity in response to a fluid flow. The apparatus includes a top rotor element coupled to a center axis with an arm extending substantially perpendicular to a center axis. The arm moves in response to the fluid flow to rotate the center axis. The apparatus also includes a bottom rotor element coupled to the center axis also having an arm extending substantially perpendicular to the center axis. The arm of the bottom rotor element is substantially fixed in a position relative to the arm of the top rotor element, wherein the position is offset about the center axis by about 90° from the top rotor element.

Abstract: A rotor blade of a gas turbine engine includes a blade root defining a cooling airflow entry cavity therein, in fluid communication with internal cooling air passages through the blade. The cavity includes opposed side walls and at least one divider wall extending therebetween. At least one end portion of the divider walls adjoins one of the side walls in an angled direction relative to a perpendicular direction of the side walls.

Abstract: A flow splitter directs inlet steam in axially opposite directions in a double flow steam turbine. The flow splitter includes a main ring having a radially outer apex with annular concave surfaces extending inwardly from and in opposite axial directions on opposite axial sides of the apex. A second ring is secured on one axial side of the main ring by welding to the main ring and has a concave outer surface portion which completes the concave surface of the flow splitter along the opposite axial side of the flow splitter.

Abstract: There is provided a centrifugal turbo machine comprising: a volute casing; a rotation axis coupled with the volute casing through a bearing; an impeller which is coupled to an end of the rotation axis and sucks fluid with a centrifugal force due to its rotation; and an axial thrust control member which is coupled to the volute casing at the rear of the impeller in a direction in which the fluid flows and prevents rotation of the fluid by the impeller. It is easy to fabricate and install the centrifugal turbo machine and it is possible to reduce the difference in static pressure of fluid by using the economical axial thrust control member so as to prevent the generation of the axial thrust, which results in damage of the bearing, etc. Therefore, it is possible to stably operate the centrifugal turbo machine.

Abstract: A blower for a water heater having a flue defining a flue axis. The blower includes a housing at least partially defining a first chamber and a second chamber and having an inlet opening into the first chamber and an outlet communicating between the second chamber and atmosphere, the inlet being alignable with the flue, a ramp extending through the second chamber and having a surface, the surface being oriented at an acute angle with respect to the flue axis, and an impeller positioned in the second chamber and being operable to draw exhaust from the flue into the first chamber through the inlet and being operable to direct the exhaust through the second chamber and across the surface of the ramp, the surface of the ramp directing the exhaust through the outlet in a direction substantially parallel to the flue axis.

Abstract: A single stage low pressure turbine blade includes an airfoil having a profile substantially in accordance with at least an intermediate portion of the Cartesian coordinate values of X, Y and Z set forth in Table 2. The X and Y values are distances, which when smoothly connected by an appropriate continuing curve, define airfoil profile sections at each distance Z. The profile sections at each distance Z are joined smoothly to one another to form a complete airfoil shape.

Abstract: A Y-connect fastener (210) is provided for firmly fastening ceiling fan blades (26) to mounting brackets (20). A plurality of protuberant members (32) extend upwardly from the mounting brackets (20), and have head portions (72) and shank portions (74) which fit through apertures (62) in the ceiling fan blades (26). The fastener (210) has an upper surface (214), a lower surface (216), and peripheral edge portions (220) extending between the upper and lower surfaces (214, 216). Openings (224, 226) are formed in the peripheral edge portions (220) in alignment for sliding the opening (226) over one of the shank portions (74), and then rotating the fastener (210) to twist the two openings (224) around two of the shank portions (74), pressing the fastener (210) between the head portions (72) of the protuberant members (32) and the upper surface of ceiling fan blade (26).

Abstract: A single stage high pressure turbine vane includes an airfoil having a profile substantially in accordance with at least an intermediate portion of the Cartesian coordinate values of X, Y and Z set forth in Table 2. The X and Y values are distances, which when smoothly connected by an appropriate continuing curve, define airfoil profile sections at each distance Z. The profile sections at each distance Z are joined smoothly to one another to form a complete airfoil shape.

Abstract: A method of assembling a gas turbine engine that includes providing a rotor assembly including a rotor shaft, an air duct, and a rotor disk that includes a mounting arm, wherein the mounting arm extends radially inward from the rotor disk towards the rotor shaft and coupling a rotor impeller assembly to the mounting arm, wherein the rotor impeller assembly includes a carrier and a plurality of bleed tubes that each extend outwardly from the carrier and are configured to receive bleed air.

Abstract: A fan assembly and fan frame thereof. A housing includes an opening. A motor base is disposed in the housing. A plurality of ribs are disposed in the opening and between the housing and the motor base for supporting the motor base. Each rib has a varied cross section from the motor base to the housing.

Abstract: The present invention relates generally to systems and methods for facilitating the movement of fluids, transferring mechanical power to fluid mediums, as well as deriving power from moving fluids. The present invention employs an impeller system in a variety of applications involving the displacement of fluids, including for example, any conventional pumps, fans, compressors, generators, circulators, blowers, generators, turbines, transmissions, various hydraulic and pneumatic systems, and the like.

Abstract: A centrifugal fan, in which an expansion angle of a radius of curvature of the outer periphery of a scroll housing from a position angle of a cutoff portion, serving as a suction portion, to a designated portion from the former in the direction of air flow is gradually decreased; and an expansion angle of the radius of curvature of the outer periphery of the scroll housing from the above designated portion to a discharge portion is gradually increased, thereby easily converting the velocity of the discharged fluid to pressure due to the increased dimensions of the discharge region and increasing the flow rate. Further, since noise generated from a cutoff portion of the centrifugal fan of the present invention maintains the same level as that of the conventional centrifugal fan, the centrifugal fan of the present invention has reduced noise at the same flow rate.

Abstract: A new design of vertical axis wind turbine is disclosed based on a dome structure using dome struts as blades that work in concert to produce rotational motion. The stability and low cost of the new design allows the turbine to function in low wind speed regimes as well as high speed winds that would be encountered in off-shore wind installations. The large stresses and structural requirements of mounting large horizontal axis wind turbines, particularly off-shore, are avoided with the new system. A new energy distribution system is proposed that will capture abundant off-shore wind energy, store it aboard a generator/delivery ship in the form of Hydrogen gas, and deliver it to an existing shore based power plant to produce electricity using a conventional gas turbine. Alternatively, the Hydrogen can be used to produce methane from coal using known processes to add natural gas to pipelines in areas that would normally be consuming the material.

Abstract: A support arrangement for a turbine diaphragm segment in a split turbine casing includes a semi-annular diaphragm segment having a horizontal joint surface; a support bar joined to the diaphragm segment adjacent the horizontal joint surface, the support bar formed with a first flange extending outwardly over a portion of the casing, the portion including a horizontal surface; and a shim on the horizontal surface and engaged by the first flange.

Abstract: A helicopter rotor transmission assembly for translating motion of a drive shaft driven by a helicopter engine into rotary motion of a helicopter rotor mast that carries rotor blades. The transmission assembly includes a fixed outer housing, an inner housing carried within the outer housing and adapted to rotate relative to the outer housing by the drive shaft, and a ball received in the inner housing so as to be rotatable relative to the inner housing about one axis, and constrained from rotation about the two orthogonal axes. The ball is adapted to receive the rotor mast so that the mast can be driven to both spin and tilt.

Abstract: A turbine, e.g., with a blade arrangement, which receives an air flow in the radial direction and which is located on a carrier surface of the turbine wheel, is used as a drive motor for a rotary atomizer. The drive channel, which contains the turbine blades and which is limited by the carrier surface, is also closed on its other side by a cover element, which is attached to the turbine wheel and which rotates with the wheel for increasing efficiency. For an additional increase in efficiency, the inlet for the drive air of the turbine is configured as an ultrasonic nozzle with a cross section that expands continuously up to the opening.

Abstract: An improved valve for use in a hydrostatic drive apparatus for a vehicle such as a zero turn vehicle. For each hydraulic drive system in the vehicle, a valve is located between the high and low pressure sides of the closed hydraulic circuit connecting the hydraulic pump and motor. The valve opens when the pressure rise rate in the high pressure side reaches a set level to minimize pressure spikes in the high pressure side and thus improve performance of the vehicle. A valve block may be used to mount the valve, and a second valve may also be included therein to connect the two pressure sides of the hydraulic circuit in a similar manner when the vehicle is operated in reverse.

Abstract: A fuel pump includes a rotor, a rotating member, a pump portion, and a housing. The rotating member is rotated by the rotor to generate suction force for drawing fuel. The pump portion includes a pump casing that receives the rotating member. The housing receives the rotor and the pump portion. The housing has an inner circumferential periphery. The pump casing has an outer circumferential periphery. At least one of the inner circumferential periphery of the housing and the outer circumferential periphery of the pump casing has a plurality of protrusions that protrudes in a substantially radial direction. The plurality of protrusions is arranged in a circumferential direction. The plurality of protrusions is press-inserted into at least one of the inner circumferential periphery of the housing and the outer circumferential periphery of the pump casing.

Abstract: A turbine engine has a first disk and a second disk, each extending radially from an inner aperture to an outer periphery. A coupling, transmits a torque and a longitudinal compressive force between the first and second disks. The coupling has first means for transmitting a majority of the torque and a majority of the force and second means, radially outboard of the first means, for vibration stabilizing.