Abstract: A hub cooling apparatus adapted to a wind generator has a circulating fan module installed in a nosed end of a hub and a wind guiding module installed in a main shaft of a nacelle; wherein the circulating fan module is driven by the rotating hub, the wind guiding module is driven by the rotating main shaft.

Abstract: A windmill having a hub sealing apparatus for sealing an interface between a hub and a blade of the windmill, The hub sealing apparatus includes a bottom sealing ring configured to be sealed to the hub, a top sealing ring configured to be rotatably sealed to the blade, and a middle sealing ring configured to be sealed to the top sealing ring and the bottom sealing ring, so as to connect the top and bottom sealing rings.

Abstract: A windmill having a hub sealing apparatus for sealing an interface between a hub and a blade of the windmill, The hub sealing apparatus includes a bottom sealing ring configured to be sealed to the hub, a top sealing ring configured to be rotatably sealed to the blade, and a middle sealing ring configured to be sealed to the top sealing ring and the bottom sealing ring, so as to connect the top and bottom sealing rings.

Abstract: The present invention provides a vertical-axis windpower fan unit using a central axle having modulized design for assembling or disassembling quickly and includes supporting arms with capability of weight adjustment so as to balance the rotation of the fan unit. In one embodiment, the present invention further provides a coaxial fan module comprising a plurality of fan units coupled sequentially wherein a blade of each fan unit is disposed in the middle position with respect to the two blades of the adjacent fan unit for reducing unbalance and eliminating vibrational noise while the fan module is rotating. In addition, in another embodiment, the present invention further provides a power generating system comprising the coaxial fan module and a power generator unit coupled to the coaxial fan module so as to generate electricity.

Abstract: A vertical axis wind generator structure includes a tower, a windmill assembly, a bearing assembly, a lubrication assembly, and a generator. The windmill assembly is installed on the bearing assembly. The windmill assembly and the bearing assembly are rotatably sleeved on a shaft lever of the tower. The bearing assembly provides for thermal expansion compensation and axial and radial loading. The lubrication assembly supplies lubricating oil based on the operating conditions of the windmill assembly so as to prolong the lifespan and improve the electricity generation effect of the wind generator.

Abstract: A power generating device capable of outputting at a constant rotation speed is configured with a constant speed unit for transforming a varying input rotation speed into a constant output rotation speed, which comprises: a power source, an electric generator and a constant speed unit; wherein the constant speed unit further comprises: a first differential gear set, having two input ends and an output end being configured in a manner that one of the two input ends is connected with the power source and the output end is connected to a load; a continuously variable transmission (CVT) mechanism, configured with an input end and an output end in a manner that the input end is connected to the power source; a hydraulic torque converter, configured with an input end and an output end in a manner that the input end is connected to the load; a second differential gear set, configured with two input ends and an output end in a manner that the two input ends are connected respectively to the output end of the CVT mech

Abstract: The present invention provides a vertical-axis windpower fan unit using a central axle having modulized design for assembling or disassembling quickly and includes supporting arms with capability of weight adjustment so as to balance the rotation of the fan unit. In one embodiment, the present invention further provides a coaxial fan module comprising a plurality of fan units coupled sequentially wherein a blade of each fan unit is disposed in the middle position with respect to the two blades of the adjacent fan unit for reducing unbalance and eliminating vibrational noise while the fan module is rotating. In addition, in another embodiment, the present invention further provides a power generating system comprising the coaxial fan module and a power generator unit coupled to the coaxial fan module so as to generate electricity.

Abstract: A vertical axis wind generator structure includes a tower, a windmill assembly, a bearing assembly, a lubrication assembly, and a generator. The windmill assembly is installed on the bearing assembly. The windmill assembly and the bearing assembly are rotatably sleeved on a shaft lever of the tower. The bearing assembly provides for thermal expansion compensation and axial and radial loading. The lubrication assembly supplies lubricating oil based on the operating conditions of the windmill assembly so as to prolong the lifespan and improve the electricity generation effect of the wind generator.

Abstract: A power generating device capable of outputting at a constant rotation speed is configured with a constant speed unit for transforming a varying input rotation speed into a constant output rotation speed, which comprises: a power source, an electric generator and a constant speed unit; wherein the constant speed unit further comprises: a first differential gear set, having two input ends and an output end being configured in a manner that one of the two input ends is connected with the power source and the output end is connected to a load; a continuously variable transmission (CVT) mechanism, configured with an input end and an output end in a manner that the input end is connected to the power source; a hydraulic torque converter, configured with an input end and an output end in a manner that the input end is connected to the load; a second differential gear set, configured with two input ends and an output end in a manner that the two input ends are connected respectively to the output end of the CVT mech

Abstract: A method for cutting a window blind by using a cutting machine includes the step of (a) displaying data of the window blind on a display by reading a barcode provided at the window blind; (b) inputting the size of a window that is to be installed with the window blind and an installation mode of the window blind by selection, and then calculating and displaying on the display a size to be cut based on the data of the window blind and the size of the window and the installation mode selected; and (c) automatically controlling a positioning mechanism of the cutting machine to move to a predetermined position corresponding to the calculated size to be cut by a processor for stopping the window blind in a cutting position, and then controlling a cutting unit of the cutting machine to cut the window blind by the processor.

Abstract: A multipurpose blind cutting machine is constructed to include a machine base, a first cutter unit and a second cutter unit mounted on the machine base and stacked with each other. The first cutter unit has a circular cutting blade and a cutter drive adapted to rotate the blade and to move the blade in a direction substantially perpendicular to the feeding direction of a blank blind to be cut. The second cutter unit has a locating molds having a plurality of positioning through holes for the positioning of parts of the blank blind to be cut, a cutting-off tool, and a cutter drive adapted to move the cutting-off tool in a direction substantially perpendicular to the feeding direction of the blank blind. A control unit is adapted to selectively control the operation of the first cutter unit and the second cutter unit.

Abstract: A workpiece holding-down structure is used in a blind cutting machine and adapted to hold down a blind in a cutter unit of the blind cutting machine. The workpiece holding-down structure includes a workpiece feeder abutted against the cutter unit, and a clamp installed in the workpiece feeder. The clamp has a clamping bar unit fastened pivotally with a bottom wall of the workpiece feeder near one lateral side of the workpiece feeder and adapted to push a blind been put in the workpiece feeder toward the other lateral side of the workpiece feeder and to further hold down the blind for cutting.

Abstract: A Venetian blind cutting machine is constructed to include a machine base, two blind locating modules mounted on the machine base at different elevations, each of which having a set of through holes for supporting component parts of a Venetian blind to be cut, a blind carriage adapted to carry the Venetian blind to be cut, a carriage for moving the blind carriage to the elevation of one of the blind locating modules for enabling the Venetian blind to be cut to be put in the selected blind locating module for cut, a cutter provided at the other side of the blind locating modules, and a cutter drive adapted to move the cutter across the imaginary axis passing through each of the through holes of the blind locating modules to cut the component parts of the loaded Venetian blind and then to return the cutter after cutting.

Abstract: A method for cutting a window blind by using a cutting machine includes the step of (a) displaying data of the window blind on a display by reading a barcode provided at the window blind; (b) inputting the size of a window that is to be installed with the window blind and an installation mode of the window blind by selection, and then calculating and displaying on the display a size to be cut based on the data of the window blind and the size of the window and the installation mode selected; and (c) automatically controlling a positioning mechanism of the cutting machine to move to a predetermined position corresponding to the calculated size to be cut by a processor for stopping the window blind in a cutting position, and then controlling a cutting unit of the cutting machine to cut the window blind by the processor.

Abstract: A multipurpose blind cutting machine is constructed to include a machine base, a first cutter unit and a second cutter unit mounted on the machine base and stacked with each other. The first cutter unit has a circular cutting blade and a cutter drive adapted to rotate the blade and to move the blade in a direction substantially perpendicular to the feeding direction of a blank blind to be cut. The second cutter unit has a locating molds having a plurality of positioning through holes for the positioning of parts of the blank blind to be cut, a cutting-off tool, and a cutter drive adapted to move the cutting-off tool in a direction substantially perpendicular to the feeding direction of the blank blind. A control unit is adapted to selectively control the operation of the first cutter unit and the second cutter unit.

Abstract: A Venetian blind cutting machine comprises a mold assembly, which has a main block and a guiding slot on the main block. A sliding block slidably receives in the guiding slot. The guiding slot has at least one stopping potion for stopping the sliding block. The sliding slot is for receiving slats therein between a closed end of the guiding slot and the sliding block. A cutter is slidably provided at the main block of the mold assembly for free shifting. Two driving bars have ends thereof fastening to the cutter. A joint block has two openings for receiving the driving bars therein and holding the driving bar therein by friction. The joint block is fastened to the sliding block. Whereby, the driving bar will drive the cutter, the joint block and the sliding block to move along with it. The sliding block will press the slats first to lock the slats in the guiding slot automatically.

Abstract: A workpiece holding-down structure is used in a blind cutting machine and adapted to hold down a blind in a cutter unit of the blind cutting machine. The workpiece holding-down structure includes a workpiece feeder abutted against the cutter unit, and a clamp installed in the workpiece feeder. The clamp has a clamping bar unit fastened pivotally with a bottom wall of the workpiece feeder near one lateral side of the workpiece feeder and adapted to push a blind been put in the workpiece feeder toward the other lateral side of the workpiece feeder and to further hold down the blind for cutting.

Abstract: An automatic workpiece fixture is installed in a blind cutting machine having a cutter unit driven by a power drive to move reciprocally for cutting a blind, and is adapted to be driven by the power drive to hold down the blind in a cutting procedure of the cutter unit. The automatic workpiece fixture includes a retainer connected to the cutter unit of the blind cutting machine for synchronous movement with the cutter unit, a push rod coupled to the retainer and held by a predetermined pressure from the retainer for movement with the retainer, and a holding down block fixedly fastened to one end of the push rod and adapted to hold down the blind when being cut.

Abstract: The present invention provides a blind cutting size setting mechanism and a blind cutting size setting method of the same for a blind cutting machine. The blind cutting size setting mechanism includes a base frame, a motor fixedly mounted on the base frame, a locating frame, the locating frame having an open frame body fixedly fastened to the base frame and a transmission screw rod fastened pivotally with the open frame body and coupled to the motor and two guide rods fixedly fastened to the open frame body, and a positioning control unit adapted to move in the locating frame between a start position and an end position upon operation of the motor to stop the blind to be cut in position for cutting, the positioning control unit having a screw hole and two through hole respectively coupled to the transmission screw rod and guide rod of the locating frame for enabling the positioning control unit to be moved along the guide rods upon rotary motion of the transmission screw rod.

Abstract: A multipurpose blind cutting machine is constructed to include a machine base, a first cutter unit and a second cutter unit mounted on the machine base and stacked with each other. The first cutter unit has a circular cutting blade and a cutter drive adapted to rotate the blade and to move the blade in a direction substantially perpendicular to the feeding direction of a blank blind to be cut. The second cutter unit has a locating molds having a plurality of positioning through holes for the positioning of parts of the blank blind to be cut, a cutting-off tool, and a cutter drive adapted to move the cutting-off tool in a direction substantially perpendicular to the feeding direction of the blank blind. A control unit is adapted to selectively control the operation of the first cutter unit and the second cutter unit.