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公开(公告)号：US6024060A
公开(公告)日：2000-02-15
申请号：US92445
申请日：1998-06-05
CPC分类号： F01L13/06 , F01L9/02 , F01L2001/34423 , F01L2001/34426 , F01L2001/34446
摘要： The reciprocating valve actuation and control system includes a poppet valve moveable between a first and second position; a source of pressurized hydraulic fluid; a hydraulic actuator including an actuator piston coupled to the poppet valve and reciprocating between a first and second position responsive to flow of the pressurized hydraulic fluid to the hydraulic actuator; an electrically operated valve controlling flow of the pressurized hydraulic fluid to the actuator; and an engine computer that generates electrical pulses to control the electrically operated valve. The electrically operated valve preferably comprises a three path rotary latched magnetic motor actuating a rotary valve portion having a housing, a rotor, and a stator receiving and supplying hydraulic fluid pressure to the rotor, which alternately directs the hydraulic fluid pressure to the valve cylinder for opening of the valve, or to return to the engine oil sump, for closing the valve. In a presently preferred embodiment, the hydraulic actuator comprises a self-contained cartridge assembly including an actuator piston with dampers for damping motion of the actuator piston, limiting the actuator stroke to assure soft seating of the actuator, and to avoid overshoot during the engine valve opening stroke and the engine valve return stroke. The electro-hydraulic valves are electrically controlled by the engine computer, which generates electrical signals carried to the electro-hydraulic valves. The engine computer typically senses conventional engine variables, and optimizes performance of the valve actuation and control system according to preestablished guidelines, with information being supplied to the engine computer by sensors. The engine computer controls all aspects of engine performance, interfaces with all of the peripheral sensors, and calculates fuel parameters, ignition timing and engine valve timing based upon prior mapping of the engine. In this manner the engine can be controlled so as to provide maximum fuel economy, minimum emissions, maximum engine torque, or a compromise between these parameters.
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公开(公告)号：US06604497B2
公开(公告)日：2003-08-12
申请号：US09924947
申请日：2001-08-07
IPC分类号： F01L902
摘要： The reciprocating valve actuation and control system includes a poppet valve moveable between a first and second position; a source of pressurized hydraulic fluid; a hydraulic actuator including an actuator piston coupled to the poppet valve and reciprocating between a first and second position responsive to flow of the pressurized hydraulic fluid to the hydraulic actuator; an electrically operated valve controlling flow of the pressurized hydraulic fluid to the actuator; and an engine computer that generates electrical pulses to control the electrically operated valve. The electrically operated valve includes a linear latching motor, which includes a solenoid coil associated with a permanent magnet, wherein the coil is energized to create a central axial repelling magnetic field relative to the permanent magnet field, and to generate concentric repelling and attractive fields to produce secondary repelling and tertiary attractive forces on the permanent magnet.
摘要翻译： 往复阀致动和控制系统包括可在第一和第二位置之间移动的提升阀; 加压液压油源; 液压致动器包括联接到提升阀的致动器活塞，并且响应于加压液压流体流向液压致动器而在第一和第二位置之间往复运动; 控制加压液压流体到致动器的电动阀; 以及产生电脉冲以控制电动阀的发动机计算机。 电动阀包括线性闭锁电动机，其包括与永磁体相关联的电磁线圈，其中线圈被通电以产生相对于永磁体场的中心轴向排斥磁场，并且产生同心排斥和有吸引力的场， 在永磁体上产生二次排斥和三次吸引力。
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公开(公告)号：US06173684B1
公开(公告)日：2001-01-16
申请号：US09480098
申请日：2000-01-10
IPC分类号： F01L902
CPC分类号： F01L13/06 , F01L9/02 , F01L2001/34423 , F01L2001/34426 , F01L2001/34446
摘要： The reciprocating valve actuation and control system includes a poppet valve moveable between a first and second position; a source of pressurized hydraulic fluid; a hydraulic actuator including an actuator piston coupled to the poppet valve and reciprocating between a first and second position responsive to flow of the pressurized hydraulic fluid to the hydraulic actuator; an electrically operated valve controlling flow of the pressurized hydraulic fluid to the actuator; and an engine computer that generates electrical pulses to control the electrically operated valve. The electrically operated valve preferably comprises a three path rotary latched magnetic motor actuating a rotary valve portion having a housing, a rotor, and a stator receiving and supplying hydraulic fluid pressure to the rotor, which alternately directs the hydraulic fluid pressure to the valve cylinder for opening of the valve, or to return to the engine oil sump, for closing the valve. In a presently preferred embodiment, the hydraulic actuator comprises a self-contained cartridge assembly including an actuator piston with dampers for damping motion of the actuator piston, limiting the actuator stroke to assure soft seating of the actuator, and to avoid overshoot during the engine valve opening stroke and the engine valve return stroke. The electro-hydraulic valves are electrically controlled by the engine computer, which generates electrical signals carried to the electro-hydraulic valves. The engine computer typically senses conventional engine variables, and optimizes performance of the valve actuation and control system according to preestablished guidelines, with information being supplied to the engine computer by sensors. The engine computer controls all aspects of engine performance, interfaces with all of the peripheral sensors, and calculates fuel parameters, ignition timing and engine valve timing based upon prior mapping of the engine. In this manner the engine can be controlled so as to provide maximum fuel economy, minimum emissions, maximum engine torque, or a compromise between these parameters.
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公开(公告)号：US5347961A
公开(公告)日：1994-09-20
申请号：US141647
申请日：1993-10-27
IPC分类号： F01L9/04
CPC分类号： F01L9/04
摘要： An internal combustion engine valve actuating device located directly above each cylinder which has a co-axial venturi shaped duct (20) that is removably attached with threaded capscrews (24) and sealed with an o-ring (28). The interior of the duct contains a number of inwardly facing vanes (30) that hold an electromechanical valve actuator (48) complete with an engine intake valve (50). When a pulsed electrical signal is received by the actuator, opposed electromagnetic fields are developed reciprocating the valve. A fuel injection system introduces combustible fuel into the duct at the trailing edge of the vanes. The valve actuating device may also be applied to the exhaust system, less the fuel injection, and the valve actuator may be cooled by interconnecting cavities (60) within the vanes using engine coolant or oil.
摘要翻译： 位于每个气缸正上方的内燃机气门致动装置，该内燃机气门致动装置具有同轴的文氏管形管道，该管道可拆卸地连接有螺纹的头螺栓，并且用O形环密封。 管道的内部包含许多向内的叶片（30），其保持具有发动机进气门（50）的机电阀致动器（48）。 当致动器接收到脉冲电信号时，相反的电磁场被开发成往复运动。 燃料喷射系统将可燃燃料引入到叶片后缘处的管道中。 阀致动装置也可以被施加到排气系统，较少的燃料喷射，并且阀致动器可以通过使用发动机冷却剂或油互连在叶片内的空腔（60）来冷却。
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公开(公告)号：US3977847A
公开(公告)日：1976-08-31
申请号：US603083
申请日：1975-08-08
申请人： Raymond C. Clark
发明人： Raymond C. Clark
CPC分类号： B01D46/24 , B01D46/0067 , B01D46/28 , B01D46/4263 , Y10S55/44 , Y10T428/23957 , Y10T428/23979 , Y10T428/23993
摘要： A particle laden gas stream is cleaned by passing it through an all metal fabric including a base with pile fibers connected to the base. The flowing gas forces the pile fibers to lie down upon each other to form a depth filter media adapted to entrap fine particles. This depth filter media is cleaned to remove entrapped particles by passing air through the fabric in a direction counter to the direction the particle laden gas flows through the fabric. Consequently, the pile fibers tend to open and extend outwardly from the base, permitting entrapped particles to be carried by the air from the fabric. Apparatus including a tubular element made of an all metal pile fabric is also disclosed. The tubular element has associated with it one or more nozzles adapted to blow air through the fabric along an incremental portion of the tubular element. Consequently, a small portion of the fabric is cleaned while simultaneously the remainder of the fabric filters particles from the gas stream.
摘要翻译： 通过将含有颗粒的气流通过包括具有连接到基底的绒毛纤维的基底的全金属织物来清洁载满颗粒的气流。 流动的气体迫使绒毛纤维彼此躺下以形成适于捕获细颗粒的深度过滤介质。 通过使空气通过织物的方向与穿过织物的颗粒流动方向相反的方向来清洁该深度过滤介质以除去捕获的颗粒。 因此，绒毛纤维倾向于从基底向外开放并允许包裹的颗粒被来自织物的空气携带。 还公开了包括由全金属绒头织物制成的管状元件的设备。 管状元件与其相关联，一个或多个喷嘴适于沿着管状元件的增量部分吹送空气穿过织物。 因此，织物的一小部分被清洁，同时织物的其余部分从气流中过滤颗粒。
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公开(公告)号：US3955643A
公开(公告)日：1976-05-11
申请号：US485602
申请日：1974-07-03
申请人： Raymond C. Clark
发明人： Raymond C. Clark
CPC分类号： F01N1/006 , F01N1/00 , F01N1/04 , F01N2450/06 , F01N2490/155
摘要： An improved sound attenuating device characterized by several novel structures which include (1) a foraminous conduit covered by (2) a layer of sound absorbing material of increasing static flow resistance from the inlet end to the outlet end, and (3) a housing surrounding the conduit and defining a plurality of quarter-wave standing wave cavities in series after the inlet end in operative association with the covered conduit. The present structure provides an attenuating device having a continually changing flow resistance to match the decreasing sound pressure level of the fluid flow passing through the attenuator. The structure takes advantage of the interaction that exists between the sound pressure level and changes in the static and dynamic flow resistance, such that for decreasing sound pressure levels, the dynamic flow resistance will be maintained at an optimum for the system by increasing the static flow resistance.
摘要翻译： 一种改进的声音衰减装置，其特征在于几种新颖的结构，其包括（1）多孔导管，其覆盖有（2）从入口端到出口端增加静电阻力的吸声材料层，以及（3）围绕 所述导管并且在所述入口端与所述被覆盖的管道可操作地相关联地限定多个四分之一波长的驻波腔。 本结构提供了具有连续变化的流动阻力以与通过衰减器的流体流的降低的声压级相匹配的衰减装置。 该结构利用声压级与静态和动态流动阻力变化之间的相互作用，使得为了降低声压级，通过增加静态流动将动态流动阻力保持在最佳状态 抵抗性。
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7.发明授权
公开(公告)号：US5591174A
公开(公告)日：1997-01-07
申请号：US190515
申请日：1994-02-02
CPC分类号： A61F9/013 , G01B9/04 , A61B2017/00725
摘要： An apparatus for calibrating the blade extension of a microkeratome includes a magnifying device and a fixture for holding the microkeratome assembly adjacent thereto. The magnifying device defines a line of sight and includes a reticle visible in the line of sight. The fixture supports the bottom surface of the shim of the microkeratome in a plane parallel to the line of sight of the magnifying device. In measuring the blade extension, the reticle is first aligned with either the cutting edge of the blade or the bottom surface of the gauge member. Relative movement between the reticle and the fixture is effected until the reticle is aligned with the other of the cutting edge and bottom surface of the gauge member. A measuring device monitors the relative movement. The reading of the measuring device equals the blade extension of the microkeratome.
摘要翻译： 用于校准微型角膜刀的刀片延伸部的装置包括放大装置和用于保持与其相邻的微型角膜刀组件的固定装置。 该放大装置限定视线并且包括在视线中可见的掩模版。 夹具支撑微型角膜刀的垫片的底面，该平面与放大装置的视线平行。 在测量刀片延伸部时，首先将掩模版与刀片的切割刃或规格件的底面对准。 标线和固定装置之间的相对运动被实现，直到标线与标准件的切割边缘和底表面中的另一个对准。 测量装置监测相对运动。 测量装置的读数等于微型角膜刀的刀片延伸。
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