Abstract: In a track-guided vehicle wheel truck, a guide frame can be turned relative to a steering axle of a running wheel. A support shaft is adjustably provided on the guide frame. A receiving member is provided projecting toward the vehicle end side. A link lever capable of interlocking the turning of the guide frame and the steering of the running wheel, is provided along the vehicle front and rear direction. A center-side end part of the link lever is rotatably mounted to the receiving member. A vehicle end-side end part of the link lever is rotatably mounted to a connecting rod that enables the steering of the running wheel. A long hole extending in the vehicle front and rear direction, is provided in an intermediate part of the link lever. The long hole and the support shaft are rotatably engaged with each other at a given position.

Abstract: A control method for a wind turbine generator and storage battery unit connected to a power grid in parallel, includes calculating total active power and total reactive power, and switching between: a first mode in which the generator outputs turbine required active power and reactive power that can be outputted by the generator and the battery unit outputs battery required active power and battery required reactive power which correspond to a difference between the total active power and the turbine required active power and a difference between the total reactive power and the turbine required reactive power respectively; and a second mode in which the battery required active power is maintained and the battery required reactive power is reduced while the turbine reactive power is increased by an amount of the reduction of the battery required reactive power wherein apparent power exceeds a set battery unit apparent power.

Abstract: A link pin exchanging device for a wind turbine generator that can efficiently carry out exchange of the link pin in the rotor hub, and a link pin exchanging method. The link pin exchanging device comprises an actuator for moving the link pin so that the link pin disengages from the link mechanism, and a reaction force receiving member for receiving a reaction force that acts on the actuator, independent from the wall surface of the rotor hub that intersects with the operating direction of the actuator.

Abstract: The present invention provides a wind turbine generator and a method of controlling the same which can prevent the decline in power generation efficiency even when the generator is located where the wind is not always strong. The wind turbine generator mainly includes an anemometer, an anemoscope, a nacelle swiveling mechanism which turns a nacelle, and a control unit which controls the nacelle swiveling mechanism. The control unit controls the nacelle swiveling mechanism so as to swivel the nacelle based on the wind direction obtained from the measurement result of the anemoscope when the wind speed obtained from the measurement result of the anemometer is greater than a first threshold Vth1 which is smaller than a cut-in wind speed Vcut—in, and controls the nacelle swiveling mechanism so as to stop the swiveling of the nacelle when the wind speed obtained from the measurement result of the anemometer is not greater than a first threshold Vth1.

Abstract: A solid particle erosion resistant surface treated coating has a solid particle erosion resistance that is largely enhanced and a rotating member having the coating gains oxidation resistance without deteriorating a fatigue strength. Also, a rotating machine can have this coating applied thereto. The solid particle erosion resistant surface treated coating has a nitrided hard layer formed on a surface of a base material and a PVD (physical vapor deposition) hard layer of at least one layer formed on the nitrided hard layer by a PVD method. Deformation of the base material by collisions by solid particles is prevented and cracking of the coating is prevented. Thereby, the solid particle erosion resistance is secured, life of the solid particle erosion resistant surface treated coating can be increased and oxidation resistance and fatigue strength are enhanced.

Abstract: A fuel ratio control method and a device therefor in a gas turbine combustor are provided in which supply ratio of pilot fuel to main fuel is appropriately maintained to thereby avoid unstable combustion, such as combustion vibration or misfire, and to realize a low NOx combustion. Fuel ratio control signal CSO is set corresponding to generator output LGEN put out by a generator output input unit 1. Pilot fuel ratio control is performed by correcting the fuel ratio control signal CSO corresponding to condition change in both or either one of combustion air and fuel. The condition change in the combustion air is at least one of changes in compressor on-line vane washing, ambient humidity, ambient pressure, etc. and the condition change in the fuel is a change in fuel component. The signal correction is also made by gas turbine deterioration factor or change rate in the generator output.