Abstract: Third stage turbine buckets have airfoil profiles substantially in accordance with Cartesian coordinate values of X, Y and Z set forth Table I wherein X and Y values are in inches and the Z values are non-dimensional values from 0 to 1 convertible to Z distances in inches by multiplying the Z values by the height of the airfoil in inches. The X, Y and Z distances may be scalable as a function of the same constant or number to provide a scaled up or scaled down airfoil section for the bucket. The nominal airfoil given by the X, Y and Z distances lies within an envelop of ±0.160 inches in directions normal to the surface of the airfoil.

Abstract: Ceiling fan energy consumption efficiency is enhanced with fan blades that have an angle attack that decreases from root end to tip end at higher rates of decrease nearer their tip ends than at their root ends. Air flow distribution is enhanced with at least a portion of the blades having a dihedral that continuously increases.

Abstract: A method for forming a thermally isolating gas turbine housing from the significantly high temperatures associated with the combustion gases flowing through the housing. A floating liner is positioned within the turbine housing with an outer baffle arranged about the floating liner and an inner baffle arranged within the floating liner. The inner and outer baffles are welled or brazed to the floating liner assembly to form a unitary assembly creating a single, continuous cooling passageway within the housing for collecting heat from adjacent the surfaces of the floating liner and expelling the heat into the combustion exhaust stream.

Abstract: Ceiling fan energy consumption efficiency is enhanced with fan blades that have an angle attack that decreases from root end to tip end at higher rates of decrease nearer their tip ends than at their root ends. Air flow distribution is enhanced with at least a portion of the blades having a dihedral that continuously increases. Efficiency on downdraft is also achieved with the blades having concave top and bottom surfaces.

Abstract: A submerged motor vane wheel rotation direction control structure includes a blade pivoted to a locating block inside of the water guide chamber of a submerged motor, a vane wheel, the vane wheel having sloping teeth radially extended from the motor shaft of the submerged motor, which push the blade outwards toward to an open position for the passing of flow of water upon clockwise rotation of the vane wheel, and is forced into engagement with the blade to hold the blade in a close position upon counter-clockwise rotation of the vane wheel, causing the submerged motor to reverse the vane wheel.

Abstract: Steam turbine speed-control systems often incorporate pilot valves for the purpose of controlling the position of hydraulic actuators for steam valves. However, the operational efficiency of these pilot valves can suffer from imperfections due to manufacturing defects, wear, and the like, thereby impairing the control system's overall performance. For these reasons, this disclosure relates to a method for overcoming a faulty pilot valve by incorporating a control system (including additional controllers) dedicated to the pilot valve. In this type setup, not only can the position of the pilot valve be a control variable, but the velocity of actuation of this valve can also be used as another control variable. Therefore, the results of separate controllers, using these two control variables, can be combined to improve the dynamic response of the steam turbine speed-control system.

Abstract: The first stage buckets have airfoil profiles substantially in accordance with Cartesian coordinate values of X, Y and Z set forth Table I wherein X and Y values are in inches and the Z value is non-dimensional along the bucket centerline coincident with a turbine radius and convertible to a Z distance in inches from the turbine axis by multiplying the Z value by the height of the airfoil and adding the root radius to the result. The X and Y distances may be scalable as a function of the same constant or number to provide a scaled up or scaled down airfoil section for the bucket. The nominal airfoil given by the X, Y and Z distances lies within an envelop of ±0.160 inches.

Abstract: A fuel pump for discharging a desired amount of fuel during vapor generation has a pump cover and a pump casing which rotatably accommodates an impeller. A pressure difference is caused in the vicinity of each impeller vane groove by fluid friction as the impeller rotates. Such a pressure difference repeatedly occurs with respect to each of the vane grooves, causing the pressurization of fuel in a pump channel formed along an outer periphery of the impeller to pump fuel to a motor chamber. An introduction groove of the pump channel formed on the pump cover side has a first vapor chamber outwardly extending in the radial direction of the impeller. Another pump channel introduction groove formed on the pump casing side has a second vapor chamber above the impeller. The first and second vapor chambers permit the removal of vapor in fuel fed from the fuel suction port.

Abstract: A process for producing a groove-like recess which is part of a strip seal between two components which enclose a gap, uses a material-removing process technology to create the groove-like recess in the two components in such a manner that the groove-like recess in each of the two components, after orientation with respect to one another, lie substantially opposite one another in an end position in which they enclose the gap between them, and that a strip element can be introduced into the groove-like recesses in such a manner that the strip element at least partially projects into both groove-like recesses and, under the action of a force, forms a substantially gastight joint with the groove-like recesses in the two components. Furthermore, a groove-like recess of this type is part of a strip seal.

Abstract: A two-piece safety mechanism for ceiling-mounted fans comprises a first and second cable. The first cable has a first fastener extending from a first end and a first connector extending from a second end. The first fastener is for operable association with a first fastening mechanism for securing the first cable to a fan. The second cable has a second fastener extending from a first end. The second fastener is for operable association with a second fastening mechanism for securing the second cable to a ceiling support. The second cable also has a second connector extending from a second end, which is releaseably attachable to the first connector to form a continuous cable. The claimed invention also provides for a ceiling fan having the two-piece safety mechanism for retaining the fan in close proximity to the ceiling support if its normal mounting apparatus should fail.

Abstract: A pressure-increasing device driven by liquid includes a body, a power unit, a drive unit and a bottom base. The body has a housing provided with an inner tube in the interior, and a water passage formed between the housing and the inner tube. A drive unit is positioned at the bottom of the body, having a plate body provided thereon with a plurality of centrifugal blades. A plurality of extension wings are respectively disposed at preset locations of the outer ends of the centrifugal blades. Each extension wing extends outward to a preset position in the water passage of the body for holding up the water thereon and pushing it upward by the driving force produced by its rotation to produce a powerful pressure-increasinng force for pushing water easily outward.

Abstract: A pump is disclosed that comprises: (1) a support structure including a body having an annular end in which an opening is defined, and a volute connected to the said end of the body so as to define a pumping chamber therewith; (2) a bladed rotor disposed in the chamber and connected to a shaft which is mounted rotatably in the body and extends through the opening; and (3) a first and a second annular sealing member which are carried by the structure and which encircle the shaft in a leaktight manner. A lubrication chamber containing a lubricating grease is defined between the sealing members and the shaft. A first sealing ring, closer to the rotor, has an inner portion which forms at least one sealing lip which bears on the shaft, and a circular portion disposed outside the lip and having a substantially U-shaped cross-section with its convex side facing the rotor.

Abstract: A diffuser for converting high velocity fluid into high pressure fluid. The diffuser includes a pair of spaced opposing walls between which extend a plurality of blades. Each of the blades has a pressure side and a suction side, wherein the pressure side of one of the blades is adjacent the suction side of another one of the blades. Each pair of adjacent blades and spaced walls define a channel that extends from an inlet end to an outlet end with a generally increasing cross-sectional area. The suction side of each blade has a height greater than the pressure side of the adjacent blade defining the channel whereby the fluid is less likely to stall due to separation from the suction side. Each blade has a leading edge positioned at a 10° angle further minimizing the incidence of stall and increasing the operating range of the diffuser.

Abstract: A method and apparatus for treating urinary tract infections in females is described. The method includes inserting a urine control device into a vagina of a female; followed by having the female urinate; and followed by removing the urine control device from the vagina. Preferably, the urine control device includes an anti-microbial agent. In one embodiment, the apparatus includes an absorptive device for absorbing bodily fluids, and an elongated member attached to the absorptive device for removing the absorptive device from a vagina. Preferably, the absorptive device includes an anti-microbial agent.

Abstract: A liquid pressing device includes mainly a power device consisting of a motor with a spindle, an upper cap on the motor and a lower cap under the motor, a shell for containing the power device, a helical device fitted around the spindle of the motor and having a conical body and a plurality of helical leaves around the conical body. The helical leaves spiral down to form a helical groove between every two helical leaves for water to pass through. The helical leaves have thickness gradually becoming thinner and thinner downward, and the helical grooves gradually become narrower and narrower downward to add pressure to water flowing up therein. Then the conical member functions to add second pressure to water passing through, sending it to a very high location. Then the liquid pressing device can function as a water pump or a propeller.

Abstract: An insert assembly is provided for a rotary machine wherein the rotary machine comprises a rotor and a casing. The rotor comprises a generally longitudinally-extending axis. The casing is generally coaxially aligned with the axis. The casing circumferentially surrounds and is radially spaced apart from the rotor. The insert assembly comprises a channel circumferentially disposed on the rotor and an insert circumferentially disposed in such channel such that the insert assembly is configured to thermally isolate frictional heat from the rotor to the insert.

Abstract: A shaft structure of a rotor tail end of a gas turbine in which a steam passage for supplying and recovering a steam for cooling rotor blades of the gas turbine extends along a center axis of the rotor assembly of the gas turbine is provided, wherein a center hole of the rotor tail end coaxial to the center axis of the steam passage is formed in the rotor tail end. Provision is also made of a thermal sleeve between the steam passage and the inner surface of the center hole of the rotor tail end, so that a thermal insulation gas layer is formed between the inner surface of the center hole of the rotor tail end and the thermal sleeve. The thermal insulation gas layer is isolated gas-tightly and liquid-tightly from the outside.

Abstract: A vertical axis wind engine, also referred to as a vertical axis wind turbine (VAWT) includes a support structure, a rotor mounted rotatably on the support structure for rotation about a vertical axis, and at least one airfoil for causing the rotor to rotate about the vertical axis in response to wind passing the wind engine. The airfoil has vertically extending leading and trailing edges, an angle-of-attack axis extending horizontally through the leading and trailing edges, and a pivotal axis extending vertically intermediate the leading and trailing edges. The airfoil is mounted on the rotor for pivotal movement about the pivotal axis and the rotor includes components for limiting pivotal movement of the airfoil to first and second limits of pivotal movement.

Abstract: The present invention relates to a method for repairing a vane used in a gas turbine engine. The method broadly comprises the steps of providing a vane to be repaired, which vane has a first platform, a first buttress, a second platform, a second buttress, and an airfoil extending between the first and second platforms, removing the first platform, the first buttress, and the airfoil from the vane in their entirety and removing part of the second platform and the second buttress leaving a machined vane portion, providing a replacement detail having at least a replacement first platform, a replacement first buttress and a replacement airfoil, positioning the replacement detail relative to the machined vane portion, and forming a joint between the machined vane portion and the replacement detail.

Abstract: A seal is provided for controlling flow of a fluid in a fluid path in a rotary machine. The seal comprises a brush seal carrier having a front plate and a back plate disposed therein. A brush seal is disposed between the front plate and the back plate. In addition, a flexible member is disposed between the brush seal and the back plate for reducing stress in the brush seal.