80results about How to "Constant gap" patented technology

A wind turbine system is provided to generate electricity from wind energy. The system locates generator at a bottom portion of the tower. The system rotates either the entire tower, or the nacelle and the generator simultaneously. A flexible power transfer member inside the tower connects a top rotation transfer member and the bottom rotation transfer member to transfer wind energy captured by the turbine rotor from the top rotation transfer member to the bottom rotation transfer member. A pitch mechanism to rotate the rotor blades in a desired angular position about the rotor blades longitudinal axis is also provided.

A dressing bars for embedding abrasive particles into a substrate at a substantially uniform height. Spacing pads, hydrostatic and/or hydrodynamic fluid bearing (air is the typical fluid) maintains a constant spacing and attitude between the dressing bar and the substrate. The fluid bearing permits the dressing bar to maintain a desirable stiffness between the lapping plate and the dressing bar. The bar geometry and fluid bearing design permits the bar to mitigate or compensate for the micrometer-scale and/or millimeter-scale wavelengths of waviness on the substrate, while maintaining a substantially constant clearance to uniformly embed the abrasive particle into the substrate.

An aircraft includes an airframe; an extending tail; a counter rotating, coaxial main rotor assembly including an upper rotor assembly and a lower rotor assembly; a translational thrust system positioned at the extending tail, the translational thrust system providing translational thrust to the airframe; an upper hub fairing positioned at the upper rotor assembly; a lower hub fairing positioned at the lower rotor assembly; and a shaft fairing disposed between the upper hub fairing and the lower hub fairing; wherein a geometry of at least one of the upper hub fairing and the lower hub fairing progressively blends from a circle to a series of curved elliptical surfaces in an inboard direction.

A garment hanger has a hanger body, a clasp and at least one engaging element. The hanger body has a plurality of first rounded teeth formed respectively along sides thereof, with a constant clearance between adjacent teeth. Each of the first rounded teeth has a top larger than its bottom to form a small mouth between the tops of two adjacent teeth. A hooked neck is connected to a roof of the hanger body. A pair of round notches is respectively disposed on exterior edges of a hook portion of the hooked neck in a symmetrical manner. The clasp has a protruding button and a tab at opposite ends. The protruding button and the tab respectively engage with the notches of the hooked neck. The engaging element has second rounded teeth properly spaced on one side thereof to respectively fit in clearances formed by the adjacent first teeth.

A mixed mother alloy is prepared from a solder mixture comprising a pyrolyzable flux and high melting point metal particles, the mixed mother alloy is charged into a large amount of molten solder and stirred, and a billet is prepared. The billet can then be extruded, rolled, and punched to form a pellet or a washer, for example.

A force sensor includes a shaft to which a magnet is fixed, and a case which can reciprocate with respect to the shaft and to which a Hall IC element is fixed. The Hall IC element outputs an output voltage which changes in accordance with relative displacement between the Hall IC element and the magnet. A main spring is interposed between the shaft and the case and elastically deforms in accordance with force produced between the shaft and the case in the reciprocating direction. A sub spring is provided in order to impart a preload such that when the amount of elastic deformation of the main spring is substantially zero, no axial clearance is formed between a flange portion of the shaft and one end portion of the main spring, and no axial clearance is formed between the case and the other end of the main spring.

A heat transfer plate comprising a first port opening and a second port opening for allowing a first fluid to flow over a top surface of the heat transfer plate, a first side opening and an opposite, second side opening for allowing a second fluid to flow over a bottom surface of the heat transfer plate, a number of rows of alternating tops and grooves that extend along the heat transfer plate, where a transition between a top and an adjacent groove is formed by an inclined portion, and plate portions that extend along the heat transfer plate, between the rows of tops and grooves, thereby forming flow channels between the rows of tops and grooves.

A method for wrapping a mat (52) around a catalyst (57) used in an exhaust gas cleaning device and compressing the mat is disclosed. Odd-numbered first presser (15), third presser (24), and fifth presser (32) are caused to move forward in the manner of the arrow (3), and the mat is compressed. The mat is then completely compressed by causing even-numbered second presser (19), fourth presser (31), and sixth presser (33) to move forward.

The invention discloses a steel pipe seam welding integrated machine, which comprises a main frame, a main oil cylinder connected to the main frame and arranged vertically, a welding mechanism connected to the main frame and located above the steel pipe, and located below the main frame for transporting The conveying device for welded steel pipes, the side frames located on the left and right sides of the steel pipes, the side frames are connected with pressure roller assemblies for fixing the left and right sides of the steel pipes, the steel pipe seam welding machine is equipped with a bracket group, and the bracket group Cards and pieces are set inside to keep the gap between the steel pipes constant, which reduces the difficulty of welding, improves the welding efficiency, and keeps the weld width of the steel pipe after welding uniform, thus ensuring the structural strength of the steel pipe.

The invention discloses a movable-type grinding wheel polisher dust hood, a dust collecting device and a dust control method. The dust hood is a semi-closed grinding wheel dust hood, and the dust hood can move up and down in the vertical direction. Compared with an existing dust hood, the movable-type grinding wheel polisher dust hood is good in seal effect and low in spillover dust; a gas between a grinding wheel and a polished surface is constant, the working is stable, the exhaust air rate is small, the structure is simple and compact, and the manufacturing cost is low.

An electromagnetic coil for electromagnetic valve is provided, which belongs to the electromagnetic control parts. The existing coil has narrow using scope of voltage and large temperature raising volume when being switched on. The invention comprises a winding soil sealed on a framework by an insulated covering and a magnetizer located outside the insulated covering; a down-lead terminal is configured outwards from the winding coil and the framework is attached with internal holes. The invention is characterized in that: a flux sleeve pipe is configured on hole wall of at least one end of the framework internal holes, which shears the same internal diameter with the framework internal holes, so as to form continuous through holes with equal diameter at internal side of the framework and the flux sleeve pipe. When switching on for the coil, the magnetic contour is able to form a loop through the sleeve pipe, which eliminates the ''dead angle'' phenomenon, increases the magnetic flux area at magnetic flux route bottle-neck at two ends of the coil, reduces the magnetic reluctance, lowers the lose of magnetic force, strengthens magnetic field of the overall coil, improves the valve opening performance of the coil, reduces the lose and consumption of magnetic force, thereby deducing the temperature rising of coil and increasing the reliability of valve.

A light source apparatus includes a discharge lamp including a light-emitting container having a cavity in which a discharge medium is enclosed, and a pair of electrodes disposed such that respective tip portions thereof oppose each other in the cavity, and a driving unit that supplies a driving current to the pair of electrodes. The driving current is generated by modulating amplitude of alternating current having a frequency not lower than 1 kHz and not higher than 10 GHz, such that a first section and a second section in which the amplitude is smaller than in the first section are alternately repeated.

The present invention relates to a plasma generating device, a method of cleaning a panel, and a method of manufacturing a display panel using the same. In the present invention, a pair of dielectric plates 52 and 52′ are detachably installed to a nozzle head 50. To this end, an upper end of the dielectric plate 52 or 52′ is inserted into a seating slit 49 formed in a lower portion of a chamber housing 46, and a lower end of the dielectric plate 52 or 52′ is securely placed on and fixed to a stepped portion 59 formed in a lower end of an electrode cover 58. Further, in order to maintain a gap 53h between the dielectric plates 52 and 52′, spacers 64 are inserted in both ends of the gap 53h. According to the present invention so configured, uniform plasma can be generated since the gap between the dielectric plates can be kept constant. Further, the dielectric plates can be easily exchanged and maintained.