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72 条记录 (耗时 0.02 秒)

    Rotary internal combustion engine with variable volumetric compression ratio
    4.
    发明授权
    Rotary internal combustion engine with variable volumetric compression ratio 有权
    具有可变体积压缩比的旋转内燃机

    公开(公告)号：US09540992B2

    公开(公告)日：2017-01-10

    申请号：US14152255

    申请日：2014-01-10

    申请人： Pratt & Whitney Canada Corp.

    发明人： Jean Thomassin ,  Andre Julien ,  Edwin Schulz ,  Michael Lanktree

    IPC分类号： F02B53/00 ,  F02B53/06 ,  F02B53/04 ,  F01C1/22 ,  F01C20/06 ,  F01C20/10 ,  F01C20/24 ,  F01C21/18 ,  F01C11/00 ,  F01C21/06 ,  F01C21/08 ,  F01C21/10 ,  F04C29/00

    CPC分类号： F02B53/06 ,  F01C1/22 ,  F01C11/006 ,  F01C20/06 ,  F01C20/10 ,  F01C20/24 ,  F01C21/06 ,  F01C21/08 ,  F01C21/106 ,  F01C21/18 ,  F01C21/183 ,  F02B53/02 ,  F02B53/04 ,  F02B55/16 ,  F02B2053/005 ,  F04C29/0092 ,  F04C2240/80

    摘要： A method and apparatus for controlling an air input in a rotary engine, including selectively controlling a plurality of inlet ports communicating with an internal combustion cavity of the engine, the ports located serially downstream of the exhaust port relative direction of a revolution of a rotor of the engine. The inlet ports are controlled to alter air intake at various engine operational stages, such as start up, idle, etc., to allow for varying operational requirements to be met. For example: when a power demand on the engine lower than a predetermined threshold, control may be effected by opening a primary inlet port and closing a secondary inlet port; and, when the power demand exceeds the predetermined threshold, control may be effected by opening the primary inlet port and opening the secondary inlet port, the secondary inlet port being located such as to be in communication with the exhaust port throughout portions of the revolution of the engine to purge exhaust gases of the engine.

    摘要翻译： 一种用于控制旋转发动机中的空气输入的方法和装置，包括选择性地控制与发动机的内部燃烧腔相通的多个入口，排气口的下游侧的端口相对于转子转速的相对方向 引擎。 入口端口被控制以改变各种发动机操作阶段（例如起动，空转等）的进气口，以允许满足不同的操作要求。 例如：当发动机上的功率需求低于预定阈值时，可以通过打开主入口并关闭次级入口来实现控制; 并且当功率需求超过预定阈值时，可以通过打开主入口并打开次级入口来进行控制，次级入口位于与排气口连通的部分， 发动机来净化发动机的废气。

    Hydraulic flow control system and method
    6.
    发明申请
    Hydraulic flow control system and method 有权
    液压流量控制系统及方法

    公开(公告)号：US20090142201A1

    公开(公告)日：2009-06-04

    申请号：US11987526

    申请日：2007-11-30

    申请人： Hong-Chin Lin ,  James Eugene Schimpf ,  James Thomas Ferrier

    发明人： Hong-Chin Lin ,  James Eugene Schimpf ,  James Thomas Ferrier

    IPC分类号： F04B49/00 ,  B66F9/00 ,  F01C20/24

    CPC分类号： E02F9/2203 ,  E02F9/2228 ,  E02F9/2296 ,  F15B11/024 ,  F15B2211/3122 ,  F15B2211/3144 ,  F15B2211/61 ,  F15B2211/6346 ,  F15B2211/7053 ,  F15B2211/761 ,  F15B2211/88

    摘要： Apparatus and methods are provided for controlling a double-acting hydraulic cylinder during a load-induced rod-extending operation, where the cylinder is activated by fluid supplied from a reservoir by a pump, and the cylinder has a rod end, a head end, a piston connected to a rod for engaging the load, the cylinder piston being urged toward the rod end by the load during the operation. The apparatus includes a cylinder activating circuit including an activation valve for providing a flow path from the pump to the cylinder head end; a flow regeneration circuit fluidly connecting the cylinder rod end and the cylinder head end and configured for providing flow from the cylinder rod end to the cylinder head end during rod extension, the regeneration circuit including a regeneration flow valve; and a controller operatively connected to the regeneration flow valve and the activation valve, the controller being responsive to rod-extending rate demands from an operator to control the activation valve to provide flow from the pump to the head end and to control the regeneration valve to provide flow from the rod end to the head end. The cylinder activating circuit also includes a return flow path and a return valve positioned in the return flow path and configured to control flow from the cylinder rod end to the fluid reservoir. Both the activation valve and the return valve are controllable by the controller independently from the regeneration flow valve.

    摘要翻译： 提供了一种装置和方法，用于在负载诱导的杆延伸操作期间控制双作用液压缸，其中气缸由通过泵从储存器供应的流体启动，并且气缸具有杆端，头端， 连接到用于接合负载的杆的活塞，在操作期间，气缸活塞被负载朝着杆端推压。 该装置包括气缸启动电路，其包括用于提供从泵到气缸头端部的流动路径的启动阀; 流动再生回路，其将所述气缸杆端部和所述气缸盖端部流体连接并且构造成在杆延伸期间提供从所述气缸杆端向所述气缸盖端部的流动，所述再生回路包括再生流量阀; 以及控制器，其可操作地连接到所述再生流量阀和所述致动阀，所述控制器响应于来自操作者的杆伸出率需求以控制所述致动阀以提供从所述泵到所述头端的流量，并且将所述再生阀控制到 提供从杆端到头端的流动。 气缸启动电路还包括返回流动路径和位于返回流动路径中并且被配置为控制从气缸杆端到流体储存器的流动的回流阀。 启动阀和回流阀均可由控制器独立于再生流量阀控制。

    Torque control for a fluid operated motor
    8.
    发明授权
    Torque control for a fluid operated motor 失效
    流体动力马达的扭矩控制

    公开(公告)号：US4318334A

    公开(公告)日：1982-03-09

    申请号：US132067

    申请日：1980-03-20

    申请人： Dana W. Nelson ,  Charles H. Kouse

    发明人： Dana W. Nelson ,  Charles H. Kouse

    IPC分类号： F01C13/02 ,  B25B23/145 ,  F01C20/00 ,  F01C20/06 ,  F01C20/24 ,  F01C21/18 ,  F16H35/10 ,  B25B23/14

    CPC分类号： F01C21/186 ,  F01C20/06 ,  F16H35/10

    摘要： A torque control for a fluid operated motor includes a first gear to be driven through operation of the motor and a second gear in driving engagement with said motor and maintained in a generally stationary position during normal operation thereof. The torque control further includes a drive mechanism connected to the first gear and to a load to be rotationally driven through operation of the motor. A valve is provided in the fluid supply to the motor to open and close the supply of fluid thereto. Disconnect means is operatively connected to the second gear and the valve to maintain said valve in an open position to permit supply of fluid to said motor when the second gear is stationary. The second gear rotates when the torque required from the motor to rotate the load exceeds a predetermined magnitude to move the disconnect means relative to the valve to close the valve to terminate the supply of fluid to the motor.

    摘要翻译： 用于流体驱动马达的转矩控制包括通过马达运行而驱动的第一齿轮和与所述马达驱动接合的第二齿轮，并在其正常操作期间保持在大致静止的位置。 转矩控制还包括连接到第一齿轮的驱动机构和通过电动机的操作旋转驱动的负载。 在向马达的流体供给中设置阀，以打开和关闭其中的流体供应。 断开装置可操作地连接到第二齿轮和阀，以将所述阀保持在打开位置，以允许当第二齿轮静止时向所述马达供应流体。 当来自电动机使负载转动所需的扭矩超过预定值时，第二齿轮转动，以相对于阀门移动断开装置以关闭阀门，以终止向电动机供应流体。

    Portable pneumatic nut running tool having air shut-off controls
    9.
    发明授权
    Portable pneumatic nut running tool having air shut-off controls 失效
    便携式气动螺母运行工具，具有空气切断控制

    公开(公告)号：US4120604A

    公开(公告)日：1978-10-17

    申请号：US792147

    申请日：1977-04-29

    申请人： Nicholas J. Garofalo

    发明人： Nicholas J. Garofalo

    IPC分类号： B25B21/00 ,  B25B23/145 ,  F01B25/02 ,  F01C20/20 ,  F01C20/24 ,  F01B25/00 ,  B23B45/04

    CPC分类号： F01B25/02 ,  B25B21/00 ,  B25B23/145 ,  F01C20/20 ,  F01C20/24

    摘要： A hand held pneumatic nut running tool including an air vane rotary motor, manipulative valving for initially starting air flow to the motor and then terminating such flow, and an air flow shut-off control valve responsive to acceleration of the motor after start-up and before said termination of air flow to continue air flow to the motor, the control valve being further responsive to a predetermined level of deceleration of the motor to discontinue air flow to the motor.

    摘要翻译： 一种手持气动螺母运行工具，其包括气动叶片旋转马达，操作阀，用于初始启动空气流到马达，然后终止该流动;以及气流切断控制阀，其响应于启动后电机的加速度，以及 在所述空气流动结束之前，继续空气流向电动机，控制阀进一步响应电动机的预定水平的减速度，以中止气流到电动机。

    SYSTEMS AND METHODS FOR A PARTIAL STATE CONDENSER
    10.
    发明公开
    SYSTEMS AND METHODS FOR A PARTIAL STATE CONDENSER 审中-公开

    公开(公告)号：US20240076986A1

    公开(公告)日：2024-03-07

    申请号：US18467431

    申请日：2023-09-14

    申请人： ARGYLE EARTH, INC

    发明人： Christopher MCMILLAN

    IPC分类号： F01C20/24 ,  F01C21/06 ,  F01C21/18 ,  F01K23/10

    CPC分类号： F01C20/24 ,  F01C21/06 ,  F01C21/18 ,  F01K23/101

    摘要： Systems and methods for a partial state condenser are described. In one embodiment, the partial state condenser receives a working fluid, and includes a sense reservoir that holds the working fluid, a reservoir sensor that senses an electrical property of the working fluid, and a reservoir valve that is in fluid communication with the sense reservoir. The partial state condenser yet further includes a processor configured to execute instructions to determine a specific energy of the working fluid based on the electrical property of the working fluid. The processor is also configured to execute instructions to control the reservoir valve to regulate a flow of a portion of the working fluid from the sense reservoir based on the specific energy of the working fluid to maintain a two-phase saturation state associated with a saturation point within the partial state condenser based on the electrical property.