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公开(公告)号：US20100186434A1
公开(公告)日：2010-07-29
申请号：US12361034
申请日：2009-01-28
CPC分类号： F25B41/062 , F25B2341/0683 , F25B2400/0411 , F25B2500/01
摘要： An expansion valve for an air conditioning system circulates refrigerant through a fixed-displacement compressor, a condenser, and an evaporator. An inlet is provided for receiving refrigerant liquefied in the condenser. An outlet of the expansion valve supplies refrigerant to the evaporator. A valve element controls flow of refrigerant between the inlet and the outlet, wherein the valve element is normally closed. A control assembly is coupled to the valve element and is responsive to at least one temperature or pressure in the air conditioning system to open the valve element to variably meter the refrigerant to the evaporator. A bleed passage bypasses the valve element to conduct refrigerant between the inlet and the outlet. The bleed passage is adapted to bleed refrigerant to the evaporator immediately after the compressor shuts off to prime the air conditioning system for a lower superheat when the compressor turns on, and the bleed path has a flow capacity substantially smaller than the flow capacity of the main valve aperture.
摘要翻译： 用于空调系统的膨胀阀使制冷剂循环通过固定容积压缩机，冷凝器和蒸发器。 设置有用于接收在冷凝器中液化的制冷剂的入口。 膨胀阀的出口向制冷剂供应制冷剂。 阀元件控制入口和出口之间的制冷剂流，其中阀元件通常关闭。 控制组件联接到阀元件并且响应于空调系统中的至少一个温度或压力以打开阀元件以可变地将制冷剂计量到蒸发器。 排出通道绕过阀元件，以在入口和出口之间传导制冷剂。 排放通道适于在压缩机关闭之后立即将制冷剂排放到蒸发器，以在压缩机打开时为更低的过热量引发空调系统，并且排出路径的流动能力显着小于主流体的流动能力 阀孔。
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公开(公告)号：US08047449B2
公开(公告)日：2011-11-01
申请号：US12361034
申请日：2009-01-28
CPC分类号： F25B41/062 , F25B2341/0683 , F25B2400/0411 , F25B2500/01
摘要： An expansion valve for an air conditioning system circulates refrigerant through a fixed-displacement compressor, a condenser, and an evaporator. An inlet is provided for receiving refrigerant liquefied in the condenser. An outlet of the expansion valve supplies refrigerant to the evaporator. A valve element controls flow of refrigerant between the inlet and the outlet, wherein the valve element is normally closed. A control assembly is coupled to the valve element and is responsive to at least one temperature or pressure in the air conditioning system to open the valve element to variably meter the refrigerant to the evaporator. A bleed passage bypasses the valve element to conduct refrigerant between the inlet and the outlet. The bleed passage is adapted to bleed refrigerant to the evaporator immediately after the compressor shuts off to prime the air conditioning system for a lower superheat when the compressor turns on, and the bleed path has a flow capacity substantially smaller than the flow capacity of the main valve aperture.
摘要翻译： 用于空调系统的膨胀阀使制冷剂循环通过固定容积压缩机，冷凝器和蒸发器。 设置有用于接收在冷凝器中液化的制冷剂的入口。 膨胀阀的出口向制冷剂供应制冷剂。 阀元件控制入口和出口之间的制冷剂流，其中阀元件通常关闭。 控制组件联接到阀元件并且响应于空调系统中的至少一个温度或压力以打开阀元件以可变地将制冷剂计量到蒸发器。 排出通道绕过阀元件，以在入口和出口之间传导制冷剂。 排放通道适于在压缩机关闭之后立即将制冷剂排放到蒸发器，以在压缩机打开时为更低的过热量引发空调系统，并且排出路径的流动能力显着小于主流体的流动能力 阀孔。
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公开(公告)号：US20090145166A1
公开(公告)日：2009-06-11
申请号：US11951716
申请日：2007-12-06
申请人： Zheng Lou , Thomas J. Joseph, SR. , Thomas Harris
发明人： Zheng Lou , Thomas J. Joseph, SR. , Thomas Harris
CPC分类号： F25B41/062 , B60H1/00571 , B60H2001/006 , F25B2500/26
摘要： A thermostatic expansion valve assembly is provided for an air conditioning system. A thermostatic expansion valve includes a valve body having an evaporator inlet port, an evaporator outlet port, a suction line port, and a liquid inlet port. The thermostatic expansion valve controls a flow of refrigerant from the liquid line port to the evaporator inlet port. A liquid line conduit is coupled to the liquid inlet port. The liquid line conduit has at least a segment elevated above the liquid inlet port. The vapor within the liquid inlet conduit accumulates at an uppermost portion of the segment prior to a compressor startup. A substantial amount refrigerant liquid is maintained between the uppermost portion of the segment and the liquid inlet port prior to the compressor startup.
摘要翻译： 为空调系统提供恒温膨胀阀组件。 恒温膨胀阀包括具有蒸发器入口，蒸发器出口，吸入管路口和液体入口的阀体。 恒温膨胀阀控制制冷剂从液体管路口到蒸发器入口的流动。 液体管道连接到液体入口。 液体管路导管至少有一个在液体入口上方升高的段。 在压缩机起动之前，液体入口导管内的蒸汽积聚在段的最上部。 在压缩机起动之前，在段的最上部和液体入口之间保持大量的制冷剂液体。
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公开(公告)号：US20100126442A1
公开(公告)日：2010-05-27
申请号：US12636051
申请日：2009-12-11
申请人： Zheng Lou
发明人： Zheng Lou
IPC分类号： F01L9/02
CPC分类号： F01L9/02 , F01L9/026 , F01L2001/34446 , F01L2003/258 , F01L2009/028 , F01L2810/05 , Y10S137/906 , Y10T137/87096
摘要： Actuators, and corresponding methods and systems for controlling such actuators, provide independent valve control with a large initial or opening force. In an exemplary embodiment, an actuator includes a driver further including a housing defining a longitudinal axis and first and second directions, an actuation mechanism capable of generating actuation force at least in the first direction, and a rod with one end operably connected with at least one part of the actuation mechanism and with the other end available for an operable connection with a load such as an engine valve; at least one return spring operably connected with the rod through a spring retainer assembly and biasing the rod in the second direction; and a pneumatic booster further including a pneumatic cylinder, a pneumatic piston operably connected with the rod through the spring retainer assembly and biasing the rod in the first direction, a charge mechanism providing a controlled fluid communication between the pneumatic cylinder and a high-pressure gas source, and a bleed mechanism providing a controlled fluid communication between the pneumatic cylinder to a low-pressure gas sink.
摘要翻译： 致动器以及用于控制这种致动器的相应方法和系统提供具有大的初始或打开力的独立阀控制。 在示例性实施例中，致动器包括驱动器，其进一步包括限定纵向轴线和第一和第二方向的壳体，能够至少在第一方向上产生致动力的致动机构，以及一端与至少可操作地连接的杆 致动机构的一部分，另一端可用于与诸如发动机气门的负载的可操作连接; 至少一个复位弹簧通过弹簧保持器组件与所述杆可操作地连接并且沿所述第二方向偏置所述杆; 以及气动助力器，还包括气动缸，气动活塞，通过所述弹簧保持器组件与所述杆可操作地连接并沿所述第一方向偏压所述杆;充气机构，其在所述气缸和高压气体之间提供受控的流体连通 源和泄放机构，其在气压缸与低压气体槽之间提供受控的流体连通。
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公开(公告)号：US07370615B2
公开(公告)日：2008-05-13
申请号：US11325986
申请日：2006-01-05
申请人： Zheng Lou
发明人： Zheng Lou
IPC分类号： F01L9/02
CPC分类号： F01L9/02 , F01L2001/34446 , F01L2009/0426 , F01L2009/0436 , F01L2800/00 , Y10S137/906
摘要： Improved actuators and valve control systems, and methods for controlling actuators and/or engine valves, are disclosed. In addition to the inherent capability of timing control, the ability to provide continuous valve lift or stroke control greatly improves engine achieve fuel economy, emission and performance. The power-off state of the actuator is at the minimum stroke, from which an easy start-up can be directly executed. The minimum stroke is also very beneficial to achieve efficient low load operation. Even with continuous lift variation, the present invention is able to keep the spring force neutral or zero point in the center of a stroke, thus maintaining an efficient scheme of energy conversion and recovery through the pendulum action. When in compression braking or other high engine cylinder air pressure working mode, the invention is able to supply necessary force to open the engine valve. By adding a substantial hydraulic force to coincide with the spring returning force at the beginning of each stroke, the system can help overcome the engine cylinder air pressure and compensate for frictional losses. The invention incorporates lash adjustment into all alternative preferred embodiments, and makes it possible to trigger and complete one engine valve stroke by just one, instead of two, switch actions of the actuation switch valve.
摘要翻译： 公开了改进的致动器和阀控制系统以及用于控制致动器和/或发动机阀的方法。 除了定时控制的固有能力之外，提供连续的气门升程或行程控制的能力大大提高了发动机实现燃油经济性，排放和性能。 执行器的断电状态处于最小行程，从而可以直接执行简单的启动。 最小冲程对于实现有效的低负载运行也是非常有益的。 即使具有连续升程变化，本发明也能够将弹簧力中立或零点保持在行程的中心，从而通过摆锤动作保持能量转换和恢复的有效方案。 当在压缩制动或其他高发动机气缸空气压力工作模式时，本发明能够提供必要的力来打开发动机气门。 通过在每次行程开始时加上大量的液压力与弹簧复位力相一致，该系统可以帮助克服发动机气缸的空气压力并补偿摩擦损失。 本发明将间隙调节结合到所有替代的优选实施例中，并且使得可以仅通过致动切换阀的一个而不是两个开关动作来触发和完成一个发动机气门冲程。
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公开(公告)号：US20060283410A1
公开(公告)日：2006-12-21
申请号：US11326017
申请日：2006-01-05
申请人： Zheng Lou
发明人： Zheng Lou
IPC分类号： F01L9/02
CPC分类号： F01L9/02 , F01L13/00 , F01L2001/34446
摘要： Actuators, and corresponding methods and systems for controlling such actuators, provide independent lift and timing control with minimum energy consumption. In an exemplary embodiment, an actuation cylinder in a housing defines a longitudinal axis and having first and second ends in first and second directions. An actuation piston in the cylinder, with first and second surfaces, is moveable along the longitudinal axis. First and second actuation springs bias the actuation piston in the first and second directions, respectively. A first fluid space is defined by the first end of the actuation cylinder and the first surface of the actuation piston, and a second fluid space is defined by the second end of the actuation cylinder and the second surface of the actuation piston. A fluid bypass short-circuits the first and second fluid spaces when the actuation piston is not substantially proximate to either the first or second end of the actuation cylinder. A first flow mechanism is provided in fluid communication between the first fluid space and a first port, and a second flow mechanism is provided in fluid communication between the second fluid space and a second port. The term “fluid” includes both liquids and gases, and the actuator may be coupled to a stem to form a variable valve actuator in an internal combustion engine, for example.
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公开(公告)号：US20060283408A1
公开(公告)日：2006-12-21
申请号：US11154039
申请日：2005-06-16
申请人： Zheng Lou
发明人： Zheng Lou
IPC分类号： F01L9/02
CPC分类号： F01L9/02 , F01L13/00 , F01L2001/34446
摘要： Actuators, and corresponding methods and systems for controlling such actuators, provide independent lift and timing control with minimum energy consumption. In an exemplary embodiment, an actuation cylinder in a housing defines a longitudinal axis and having first and second ends in first and second directions. An actuation piston in the cylinder, with first and second surfaces, is moveable along the longitudinal axis. First and second actuation springs bias the actuation piston in the first and second directions, respectively. A first fluid space is defined by the first end of the actuation cylinder and the first surface of the actuation piston, and a second fluid space is defined by the second end of the actuation cylinder and the second surface of the actuation piston. A fluid bypass short-circuits the first and second fluid spaces when the actuation piston is not substantially proximate to either the first or second end of the actuation cylinder. A first flow mechanism is provided in fluid communication between the first fluid space and a first port, and a second flow mechanism is provided in fluid communication between the second fluid space and a second port. The term “fluid” includes both liquids and gases, and the actuator may be coupled to a stem to form a variable valve actuator in an internal combustion engine, for example.
摘要翻译： 致动器以及用于控制这些致动器的相应方法和系统以最小的能量消耗提供独立的升降和定时控制。 在示例性实施例中，壳体中的致动圆筒限定纵向轴线并且在第一和第二方向上具有第一和第二端。 具有第一和第二表面的气缸中的致动活塞可沿着纵向轴线移动。 第一和第二致动弹簧分别在第一和第二方向上偏压致动活塞。 第一流体空间由致动气缸的第一端和致动活塞的第一表面限定，第二流体空间由致动气缸的第二端和致动活塞的第二表面限定。 当致动活塞基本上不靠近致动气缸的第一端或第二端时，流体旁路使第一和第二流体空间短路。 第一流动机构设置成在第一流体空间和第一端口之间流体连通，并且第二流动机构设置成在第二流体空间和第二端口之间流体连通。 术语“流体”包括液体和气体，并且致动器可以联接到杆，以在例如内燃机中形成可变阀致动器。
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公开(公告)号：US5992582A
公开(公告)日：1999-11-30
申请号：US229928
申请日：1994-04-19
CPC分类号： F16F9/532 , F16F13/30 , F16F9/12 , F16F2224/043 , F16F2232/02
摘要： An electrorheological damping device for reducing translational vibration between two bodies comprises a rotary electrorheological damper and transmission means for converting the translational vibration between the two bodies to the rotary motion of the rotary electrorheological damper. The rotary electrorheological damper includes a stator and a rotor that are coaxially arranged. The stator have a plurality of stator electrodes, and the rotor have a plurality of rotor electrodes. The stator electrodes and the rotor electrodes face each other alternatively within at least one fluid chamber. The fluid chamber is filled with an electrorheological fluid that varies its rheological properties when exposed to an electric field. The electrorheological fluid fills spaces between each pair of the stator and rotor electrodes. The rotary electrorheological damper is able to control the damping torque that resists rotary motion between the stator and the rotor and, thus, the translational vibration between the two bodies. An alternative embodiment integrates a pneumatic spring into the electrorheological damping device to create a compact full suspension system, where the rotary ER damper doubles as a piston inside the cylinder of the pneumatic spring.
摘要翻译： 用于减少两个体之间的平移振动的电流变阻尼装置包括旋转电流变阻尼器和用于将两个体之间的平移振动转换成旋转电流变阻尼器的旋转运动的传动装置。 旋转电流变阻尼器包括同轴布置的定子和转子。 定子具有多个定子电极，转子具有多个转子电极。 定子电极和转子电极在至少一个流体室内交替地彼此面对。 流体室充满电流变流体，当暴露于电场时，流体流体改变其流变特性。 电流变流体填充每对定子和转子电极之间的空间。 旋转电流阻尼器能够控制抵抗定子和转子之间的旋转运动的阻尼扭矩，从而控制两个体之间的平移振动。 替代实施例将气动弹簧集成到电流变阻尼装置中以产生紧凑的全悬挂系统，其中旋转ER阻尼器在气动弹簧的气缸内兼作活塞。
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公开(公告)号：US20160215661A1
公开(公告)日：2016-07-28
申请号：US14604757
申请日：2015-01-26
申请人： Zheng Lou
发明人： Zheng Lou
CPC分类号： F16K31/1221 , F01L1/08 , F01L1/181 , F01L1/267 , F01L9/02 , F01L9/025 , F01L2001/0476 , F01L2105/00 , F01L2800/00 , F01L2800/01 , F01L2820/03 , F02D13/0207 , F02D13/04 , F02M47/027 , F16K31/122
摘要： The present disclosure provides an engine valve actuation system comprising: a camshaft, with a plurality of cams: a control shaft one; a control shaft two; and a plurality of valve actuation units, each unit further comprising: (i) at least one set of an engine valve and an engine-valve return spring; (ii) an lost-motion module, further comprising a collapsible high-pressure chamber, and operably converting the profile of the one of the cams and the collapsing motion from the high-pressure chamber to corresponding movement of the at least one engine valve; and (iii) a hydraulic circuit, further comprising: a trigger valve one and a trigger valve two, being controlled respectively by the control shaft one and the control shaft two.
摘要翻译： 本公开提供了一种发动机气门致动系统，包括：凸轮轴，具有多个凸轮：控制轴一; 一个控制轴二; 和多个阀致动单元，每个单元还包括：（i）至少一组发动机气门和发动机气门复位弹簧; （ii）一个失物运动模块，还包括一个可折叠的高压室，并且可操作地将凸轮中的一个的轮廓和从高压室的塌缩运动转换成至少一个发动机气门的相应运动; 以及（iii）液压回路，还包括：分别由所述控制轴1和所述控制轴2控制的触发阀和触发阀2。
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公开(公告)号：US07536984B2
公开(公告)日：2009-05-26
申请号：US11787295
申请日：2007-04-16
申请人： Zheng Lou
发明人： Zheng Lou
IPC分类号： F01L1/34
CPC分类号： F01L9/02 , F01L9/026 , F01L2001/34446 , F01L2003/258 , F01L2009/028 , F01L2810/05 , Y10S137/906 , Y10T137/87096
摘要： Actuators, and corresponding methods and systems for controlling such actuators, provide independent valve control with a large initial or opening force. In an exemplary embodiment, an actuator includes a driver further including a housing defining a longitudinal axis and first and second directions, an actuation mechanism capable of generating actuation force at least in the first direction, and a rod with one end operably connected with at least one part of the actuation mechanism and with the other end available for an operable connection with a load such as an engine valve; at least one return spring operably connected with the rod through a spring retainer assembly and biasing the rod in the second direction; and a pneumatic booster further including a pneumatic cylinder, a pneumatic piston operably connected with the rod through the spring retainer assembly and biasing the rod in the first direction, a charge mechanism providing a controlled fluid communication between the pneumatic cylinder and a high-pressure gas source, and a bleed mechanism providing a controlled fluid communication between the pneumatic cylinder to a low-pressure gas sink.
摘要翻译： 致动器以及用于控制这种致动器的相应方法和系统提供具有大的初始或打开力的独立阀控制。 在示例性实施例中，致动器包括驱动器，其进一步包括限定纵向轴线和第一和第二方向的壳体，能够至少在第一方向上产生致动力的致动机构，以及一端与至少可操作地连接的杆 致动机构的一部分，另一端可用于与诸如发动机气门的负载的可操作连接; 至少一个复位弹簧通过弹簧保持器组件与所述杆可操作地连接并且沿所述第二方向偏置所述杆; 以及气动助力器，还包括气动缸，气动活塞，通过所述弹簧保持器组件与所述杆可操作地连接并且沿所述第一方向偏置所述杆;充气机构，其在所述气缸和高压气体之间提供受控的流体连通 源和泄放机构，其在气压缸与低压气体槽之间提供受控的流体连通。
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