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    • 1. 发明授权
    • Electrohydraulic camless valvetrain with rotary hydraulic actuator
    • 带液压执行机构的液压无凸轮阀门
    • US5562070A
    • 1996-10-08
    • US498771
    • 1995-07-05
    • Michael M. SchechterMichael B. Levin
    • Michael M. SchechterMichael B. Levin
    • F01L9/02
    • F01L9/02
    • An engine valve assembly (10) within an electrohydraulic camless valvetrain cooperates with a hydraulic system (8) having a low pressure branch (70) and a high pressure branch (68) to selectively open and close engine valve (12). Engine valve (12) is affixed to a valve piston (16) within a piston chamber (18). A volume (42) below piston (16) is connected to high pressure branch (68) and a volume (20) above piston (16) is selectively connected to the high pressure branch (68) or the low pressure branch (70) via a rotary valve (34), to effect engine valve opening and closing. A motor (60) effects the rotation of the rotary valve (34). The rotary valve (34) includes an internal hollow (92) operatively and selectively connected to windows (86 and 90) in a valve sleeve (66) to allow high pressure and low pressure fluid flow through the valve (34).
    • 电动液压无凸轮阀门内的发动机气门组件(10)与具有低压分支(70)和高压分支(68)的液压系统(8)配合,以选择性地打开和关闭发动机气门(12)。 发动机气门(12)固定在活塞室(18)内的阀活塞(16)上。 活塞(16)下方的体积(42)连接到高压分支(68),并且活塞(16)上方的体积(20)经由高压分支(68)或低压分支(70)经由 旋转阀(34),以实现发动机气门的打开和关闭。 马达(60)实现旋转阀(34)的旋转。 旋转阀(34)包括可操作地并选择性地连接到阀套(66)中的窗口(86和90)上的内部空心(92),以允许高压和低压流体流过阀(34)。
    • 2. 发明授权
    • Part load gas exchange strategy for an engine with variable lift camless
valvetrain
    • 具有可变提升无凸轮阀门的发动机的部分负荷气体交换策略
    • US5404844A
    • 1995-04-11
    • US286312
    • 1994-08-05
    • Michael M. Schechter
    • Michael M. Schechter
    • F01L9/02F02B29/00F02D13/02F02M25/07F02G5/00
    • F02D13/0207F01L9/02F02B29/00F02D13/0215F02M26/01F02D13/0253F02D13/0261F02D2013/0292Y02T10/146Y02T10/18
    • A variable engine valve control system and method of operation thereof wherein each of the reciprocating engine valves is hydraulically or electrically controlled and can vary its lift schedule for various engine operating conditions. During part load operation of the engine, the intake valve is opened and the exhaust valve is closed during the exhaust stroke, prior to a piston's top dead center position, so that the intake port receives exhaust gas, which is then returned to the cylinder during the intake stroke to eliminate the need for an external exhaust gas recirculation system and to improve fuel evaporation into the intake air. Further, during part load, the intake valve is closed before the end of the intake stroke and the intake air is heated by a heat exchanger prior to entry into the cylinder to eliminate the need for air throttling without compromising the compression ratio and ignition characteristics.
    • 可变发动机气门控制系统及其操作方法,其中每个往复式发动机气门是液压或电气控制的,并且可以改变其各种发动机运行条件的升程时间表。 在发动机的部分负载运行期间,在活塞的上止点位置之前,进气门打开并且在排气冲程期间关闭排气阀,使得进气口接收废气,然后废气返回到气缸 进气冲程,以消除对外部排气再循环系统的需要并改善燃料进入进气的蒸发。 此外,在部分负载期间,进气门在进气冲程结束之前关闭,并且进入气体在进入气缸之前被热交换器加热以消除对空气节流的需要而不损害压缩比和点火特性。
    • 3. 发明授权
    • Air charging valve for an air forced fuel injector
    • 用于空气强制燃油喷射器的充气阀
    • US5390647A
    • 1995-02-21
    • US79579
    • 1993-06-21
    • Michael M. Schechter
    • Michael M. Schechter
    • F02B75/02F02M67/04F02M67/12
    • F02M67/12F02M67/04F02B2075/027
    • A air charging valve for use with a air forced fuel injection system. The charging valve admitting and storing compressed air from the engine cylinder and releasing it into the fuel injector to force out the air/fuel mixture into the engine cylinder. The charging valve will accept the pressurized air from the engine cylinder without allowing any air to escape back into the combustion chamber once it is in the air charging valve. The fuel injection system includes an injector having a fuel and air mixing chamber that includes a normally closed injector valve; the chamber being for premixing air and fuel before introduction of the compressed air which causes the fuel injection event.
    • 一种用于空气强制燃油喷射系统的充气阀。 充气阀允许并存储来自发动机气缸的压缩空气并将其释放到燃料喷射器中以将空气/燃料混合物推出到发动机气缸中。 充气阀将接收来自发动机气缸的加压空气,而不允许任何空气在空气充气阀中回流到燃烧室中。 燃料喷射系统包括具有燃料和空气混合室的喷射器,燃料和空气混合室包括常闭的喷射阀; 该室用于在引入导致燃料喷射事件的压缩空气之前预混合空气和燃料。
    • 4. 发明授权
    • Variable engine valve control system
    • 可变发动机气门控制系统
    • US5255641A
    • 1993-10-26
    • US993746
    • 1992-12-21
    • Michael M. Schechter
    • Michael M. Schechter
    • F01L9/02F02B75/02F01L1/34
    • F01L9/02F02B2075/025G05B2219/23363G05B2219/25297G05B2219/25406Y10T137/0318
    • A variable engine valve control system wherein each of the reciprocating intake and/or exhaust valves is hydraulically controlled and includes a piston subjected to fluid pressure acting on surfaces at both ends of the piston. The space at one end of the piston is connected to a source of high pressure fluid while the space at the other end is connected to a source of high pressure fluid and a source of low pressure fluid, and disconnected from each through action of controlling means such as solenoid valves. The controlling means may include a rotary hydraulic distributor coupled with each solenoid valve, thereby permitting each solenoid valve to control operation of a plurality of engine valves in succession. Equal air delivery to all engine cylinders having the aforementioned variable valve control system is assured by controlling electric pulses of variable duration and timing, the system involving means for making individual modifications of the durations of the electric pulses controlling each individual actuator, and the modifications being of such nature as to assure that all actuators control the engine intake (or exhaust) valves in an identical manner to assure equal valve strokes in all cylinders.
    • 一种可变发动机气门控制系统,其中每个往复式进气阀和/或排气阀是液压控制的,并且包括经过作用在活塞两端的表面上的流体压力的活塞。 活塞一端的空间连接到高压流体源,而另一端的空间连接到高压流体源和低压流体源,并且从控制装置的每个通过动作断开 如电磁阀。 控制装置可以包括与每个电磁阀连接的旋转液压分配器,从而允许每个电磁阀连续地控制多个发动机气门的操作。 通过控制可变持续时间和定时的电脉冲来确保具有上述可变气门控制系统的所有发动机气缸的相等空气输送,该系统涉及用于对控制每个单独的致动器的电脉冲的持续时间进行各种修改的装置, 具有这样的性质,以确保所有致动器以相同的方式控制发动机进气(或排气)阀,以确保在所有气缸中相等的阀行程。
    • 5. 发明授权
    • Variable stroke/clearance volume engine
    • 可变行程/间隙量引擎
    • US5163386A
    • 1992-11-17
    • US856272
    • 1992-03-23
    • Michael M. Schechter
    • Michael M. Schechter
    • F02B75/04
    • F02B75/04
    • An automotive-type engine has each of the piston connecting rods connected to the engine crankshaft by means of a swing link that is pivoted at one end to the arm of a normally stationary crank; however, the crank can be rotated to change the clearance volume between the piston and the cylinder head or the stroke of the engine for best engine operation at each operating condition. A piston/plunger hydraulically interconnects the crank arm to a control means for permitting rotation of the crank arm by means of a number of cam-controlled pushrods operating on one-way check valves controlling flow of fluid from opposite ends of the chamber containing the piston/plunger.
    • 汽车式发动机通过摆动连杆将活塞连接杆连接到发动机曲轴上,该摆动连杆在一端枢转到通常静止的曲柄的臂上; 然而,曲柄可以旋转以改变活塞和气缸盖之间的间隙体积或发动机的行程,以便在每个操作条件下获得最佳的发动机运转。 活塞/柱塞将曲柄臂液压地互连到控制装置,用于允许曲柄臂通过多个凸轮控制的推杆来旋转,所述多个凸轮控制推杆在单向止回阀上操作,控制流体从包含活塞的腔室的相对端流动 /柱塞。
    • 8. 发明授权
    • Spool valve control of an electrohydraulic camless valvetrain
    • 电动液压无凸轮阀门的阀芯控制
    • US5456222A
    • 1995-10-10
    • US369459
    • 1995-01-06
    • Michael M. Schechter
    • Michael M. Schechter
    • F01L9/02
    • F01L9/02
    • An engine valve assembly (10) within an electrohydraulic camless valvetrain cooperates with a hydraulic system (8) having a low pressure branch (70) and a high pressure branch (68) to selectively open and close engine valve (12). Engine valve (12) is affixed to a valve piston (16) within a piston chamber (18). A volume (42) below piston (16) is connected to high pressure branch (68) and a volume (20) above piston (16) is selectively connected to the high pressure branch (68) or the low pressure branch (70) via a spool valve (34), to effect engine valve opening and closing. A motor (60) effects the movement of the spool valve (34).
    • 电动液压无凸轮阀门内的发动机气门组件(10)与具有低压分支(70)和高压分支(68)的液压系统(8)配合,以选择性地打开和关闭发动机气门(12)。 发动机气门(12)固定在活塞室(18)内的阀活塞(16)上。 活塞(16)下方的体积(42)连接到高压分支(68),并且活塞(16)上方的体积(20)经由高压分支(68)或低压分支(70)经由 滑阀(34),以实现发动机气门的打开和关闭。 电动机(60)实现滑阀(34)的运动。
    • 9. 发明授权
    • Rotary hydraulic valve control of an electrohydraulic camless valvetrain
    • 电动液压无凸轮阀门的旋转液压阀控制
    • US5456221A
    • 1995-10-10
    • US369433
    • 1995-01-06
    • Michael M. Schechter
    • Michael M. Schechter
    • F01L9/02
    • F01L9/02
    • An engine valve assembly (10) within an electrohydraulic camless valvetrain cooperates with a hydraulic system (8) having a low pressure branch (70) and a high pressure branch (68) to selectively open and close engine valve (12). Engine valve (12) is affixed to a valve piston (16) within a piston chamber (18). A volume (42) below piston (16) is connected to high pressure branch (68) and a volume (20) above piston (16) is selectively connected to the high pressure branch (68) or the low pressure branch (70) via a rotary valve (34), to effect engine valve opening and closing. A motor (60) effects the rotation of the rotary valve (34).
    • 电动液压无凸轮阀门内的发动机气门组件(10)与具有低压分支(70)和高压分支(68)的液压系统(8)配合,以选择性地打开和关闭发动机气门(12)。 发动机气门(12)固定在活塞室(18)内的阀活塞(16)上。 活塞(16)下方的体积(42)连接到高压分支(68),并且活塞(16)上方的体积(20)经由高压分支(68)或低压分支(70)经由 旋转阀(34),以实现发动机气门的打开和关闭。 马达(60)实现旋转阀(34)的旋转。
    • 10. 发明授权
    • Skip-cycle strategies for four cycle engine
    • 四循环引擎的跳过循环策略
    • US5377631A
    • 1995-01-03
    • US124172
    • 1993-09-20
    • Michael M. Schechter
    • Michael M. Schechter
    • F01L9/02F02B1/04F02B41/00F02B75/02F02D13/06F02D41/00F02D41/36F02B77/00
    • F02D13/06F01L9/02F02B41/00F02B75/02F02D41/0087F02B1/04F02B2075/027F02D2041/0012Y02T10/18
    • Strategies for operating a four cycle engine in skip-cycle manner include providing the engine with a valve control so that each intake and exhaust valve for each cylinder can be individually activated or deactivated essentially instantaneously to provide a skip-cycle pattern that varies as a function of the load. Individual of the valves permits changing the purpose of the stroke off each piston of each deactivated cylinder from compression to exhaust or intake to expansion, as the case may be, to assure firing of all of the engine cylinders within as short a period as one skip cycle to prevent cylinder cooldown, which promotes emissions. Unthrottled operation also is provided by closing the intake and exhaust valves in a particular sequence during skip cycle operation, and controlling the intake valve closure timing during load periods between skip cycle periods to continue unthrottled operation for all load levels. Further individual activation or deactivation of the fuel injectors and spark plugs enhances the skip cycle, unthrottled operation.
    • 以四轮循环方式操作四冲程发动机的策略包括为发动机提供阀门控制,使得每个气缸的每个进气门和排气阀可以基本上瞬时地单独激活或停用,以提供作为功能变化的跳过循环模式 的负载。 单独的阀门允许将每个停用的汽缸的每个活塞的冲程的目的改变为从压缩到排气或进气到膨胀(视情况而定),以确保所有发动机气缸在一个短暂的时间内燃烧 循环,以防止气缸冷却,这促进排放。 通过在跳过循环操作期间以特定顺序关闭进气门和排气门,并且在跳过循环周期之间的负载期间控制进气门关闭定时以提供所有负载水平的连续运行,从而提供节流操作。 燃料喷射器和火花塞的进一步单独激活或停用增强了跳动循环,无节制操作。