摘要:
A gas turbine engine turbine cooling system includes an impeller and a diffuser directly downstream of the impeller, a bleed for bleeding clean cooling air from downstream of the diffuser, and one or more channels in fluid communication with the bleed. Each of the channels having a generally radially extending section followed by a generally axially aftwardly extending section terminating at an annular cooling air plenum connected to accelerators. The radially and axially aftwardly extending sections may be connected by a bend section of the cooling air channel and the axially aftwardly extending section may be angled radially inwardly going from the bend section to the cooling air plenum. Each of the cooling channels includes an inner wall formed by a forward end wall extending radially outwardly from an inner combustor casing, an annular cover covering a radially inner portion of the forward end wall, and the inner combustor casing.
摘要:
A gas turbine engine turbine cooling system includes an impeller and a diffuser directly downstream of the impeller, a bleed for bleeding clean cooling air from downstream of the diffuser, and one or more channels in fluid communication with the bleed. Each of the channels having a generally radially extending section followed by a generally axially aftwardly extending section terminating at an annular cooling air plenum connected to accelerators. The radially and axially aftwardly extending sections may be connected by a bend section of the cooling air channel and the axially aftwardly extending section may be angled radially inwardly going from the bend section to the cooling air plenum. Each of the cooling channels includes an inner wall formed by a forward end wall extending radially outwardly from an inner combustor casing, an annular cover covering a radially inner portion of the forward end wall, and the inner combustor casing.
摘要:
The instant invention is a method for achieving a-planar framing configurations which enable the construction of hyperbolic paraboloid surfaces, a multiplicity of which join to create roof structures and enclosures.In particular, the shaping and erecting of connected a-planar quadrilateral frames to create under-framing which can be completed by a simple in-framing, and covered with sheeting material resulting in a new method of constructing enclosures with hyperbolic paraboloid faces without the use of highly trained crews, or the need for elaborate pre-forms or specialized connecting or covering elements.The instant invention has the advantage that lateral forces are resolved directly along the leg members forming triangular openings at its periphery, and by the triangular configurations resulting when the tension restraining member is added to the framework. Triangular openings formed during construction can be used for doorways and windows without the need for dormers or skylights. The construction minimizes the number of braces and edges, there being a minimum of faces joining to form the edges. The over-all configuration is one which provides exceptional resistance to lifting or being torn apart by the wind, an anti-kiting effect which is most optimized in the preferred embodiment, due to its large volume per surface area. This space efficiency also helps to make the hypershelter more economical to build, and more environmentally friendly than conventional structures. The inherent strength afforded by its over-all shape also reduces the amount and weight of material needed. Additionally, such structures are ideal for use as roofs over other environmentally friendly enclosures, such as those made of hay bale, cob, cord wood, etc.The additional methods of assembly and erection of a hypershelter described herein make possible even greater strength-to-weight ratios and more efficient construction procedures than was possible at the time of the original application. The pre-stressed effects of the twisted framing members, and the progressively rotated orientations of the faces are strength enhancements, and the assembly of whole faces before erection makes possible a great deal of savings in the construction process. As a result of these improvements, it also makes it easier to create various embodiments of hypershelters, here called “domular” and “multi”, that were not noted previously.
摘要:
A method of forming a micro-display includes forming a device that includes forming a partially reflecting layer on a first substrate and forming a plate overlying the partially reflecting layer, and adhering the device to a second substrate.
摘要:
A microelectromechanical device having a reset electrode for use in various devices including display devices such as those employing spatial light modulators. The device includes an optically transmissive substrate, a semiconductor substrate, and a member deflectable between a rest position and an operative position supported by one of the substrates. The deflectable member returns to an undeflected position by operation of the reset electrode.
摘要:
A composition and method for fabricating high-density Ta—Al—O, Ta—Si—N, and W—Si—N sputtering targets, having particular usefulness for the sputtering of heater layers for ink jet printers. Compositions in accordance with the invention comprise a metal component, Si3N4, and a sintering aid so that the targets will successfully sputter without cracking, etc. The components are combined in powder form and pressure consolidated under heated conditions for a time sufficient to form a consolidated blend having an actual density of greater that about 95% of the theoretical density. The consolidated blend may then be machined so as to provide the final desired target shape.
摘要翻译:用于制造高密度Ta-Al-O,Ta-Si-N和W-Si-N溅射靶的组合物和方法,对于用于喷墨打印机的加热器层的溅射特别有用。 根据本发明的组合物包含金属组分Si 3 N 4 S和烧结助剂,使得靶材将成功地溅射而不会破裂等。组分被组合 粉末形式和压力在加热条件下固化足以形成具有大于理论密度的约95%的实际密度的固结共混物的时间。 然后可以加工固结的混合物以提供最终期望的目标形状。
摘要:
An electrostatographic reproduction apparatus comprising: a primary imaging member for forming a toner image, a fuser assembly containing a fusing member and a pressure member for fixing the toner image to a receiver, a release oil device for delivering release oil to the fusing member of the fuser assembly, an intermediate transfer member for receiving the toner image from the primary imaging member, and a receiver transport member for transporting the toner image from the intermediate transfer member to the fuser assembly. The receiver transport member has a surface energy from about 14 ergs/cm2 to about 35 ergs/cm2. The apparatus further includes a cleaning device that is associated with the receiver transport member and includes a fabric material capable of removal of residual release oil from the receiver transport member.
摘要翻译:一种静电复原装置,包括:用于形成调色剂图像的主要成像构件,包含定影构件的定影组件和用于将调色剂图像定影到接收器的压力构件;释放油装置,用于将释放油输送到所述定影构件的定影构件 定影器组件,用于从主成像构件接收调色剂图像的中间转印部件,以及用于将调色剂图像从中间转印部件传送到定影器组件的接收器传送部件。 接收器传送构件的表面能为约14erg / cm 2至约35erg / cm 2。 该装置还包括与接收器传送构件相关联的清洁装置,并且包括能够从接收器传送构件去除残余释放油的织物材料。
摘要:
An emitter includes an electron source and a cathode. The cathode has an emissive surface. The emitter further includes a continuous anisotropic conductivity layer disposed between the electron source and the emissive surface of the cathode. The anisotropic conductivity layer has an anisotropic sheet resistivity profile and provides for substantially uniform emissions over the emissive surface of the emitter.
摘要:
A template levelling system includes a pile receptacle carried within the template receptacle mounted to the template. The pile receptacle has a lower flange that extends outwardly from and below the template receptacle. Slips are located in the pile receptacle for gripping the pile to prevent downward movement of the template. A hydraulic jack will grip the pile receptacle and pull the pile receptacle upwardly, causing the flange to contact the lower side of the template to lift the template. The pile receptacle is laterally movable in the template receptacle. A release sleeve can selectively release the slips to allow the pile receptacle to be lowered on the pile.
摘要:
An apparatus and method for leveling and supporting a sub-sea drilling template for sub-sea well drilling operations have support frame means for providing a stable reference surface for the sub-sea drilling template relative to an underlying sea bottom surface, universal pivot means operationally interconnecting the support frame means and the template for pivotally supporting the template with respect to the sea bottom surface and leveling means operationally interconnecting the support frame means and the template for varying the angular orientation of the template about the pivot means relative to the support frame means. Additionally, retaining means are provided for fixedly securing the template with respect to the support frame means once a desired angular orientation therebetween has been achieved.