High-efficiency, large angle, variable displacement hydraulic pump/motor
    1.
    发明授权
    High-efficiency, large angle, variable displacement hydraulic pump/motor 失效
    高效,大角度,可变排量液压泵/电机

    公开(公告)号:US07014429B2

    公开(公告)日:2006-03-21

    申请号:US10379992

    申请日:2003-03-06

    IPC分类号: F04B1/12 F01B13/06

    摘要: A variable displacement hydraulic/pump motor has a yoke with a pair of shafts aligned to define a yoke pivot axis and connected to a valve plate therebetween having intake and discharge apertures. A rotatable cylinder barrel has piston cylinders open at one end to receive a piston head and opening through fluid ports at another end, flush against the valve plate surface. A drive block is mounted on an input/output shaft for rotation about a central axis of rotation inclined at an angle relative to the longitudinal axis of the cylinder barrel which may be changed by a drive engaging the yoke at a point near its pivot axis. Loads on bushings supporting the yoke shafts are reduced by providing radially extending fluid ports in the shafts and in communication with the intake and discharge apertures of the valve plate.

    摘要翻译: 可变排量液压/泵马达具有轭,其一对轴对准以限定轭枢转轴线,并且连接到其间具有进气和排出孔的阀板。 可旋转的缸筒具有在一端敞开的活塞气缸,以接收活塞头并通过另一端的流体端口开口,与阀板表面齐平。 驱动块安装在输入/输出轴上,用于围绕相对于气缸筒的纵向轴线成一定角度倾斜的中心旋转轴线旋转,该中心轴线可以通过在靠近其枢转轴线的点处接合轭架的驱动器来改变。 通过在轴中提供径向延伸的流体端口并与阀板的进入和排出孔连通来减少支撑轭轴的衬套上的负载。

    Hydraulic machine having pressure equalization
    4.
    发明授权
    Hydraulic machine having pressure equalization 失效
    液压机具有压力均衡

    公开(公告)号:US07500424B2

    公开(公告)日:2009-03-10

    申请号:US10820074

    申请日:2004-04-07

    IPC分类号: F01B13/04 F04B1/12

    摘要: A hydraulic machine includes a valve plate, with first and second fluid ports in a surface thereof. A cylinder barrel is rotatably coupled to the valve plate. A plurality of cylinders is formed in the cylinder barrel, such that, as the barrel rotates, each cylinder is coupled to the first and second fluid ports, sequentially. First and second pressure relief ports are formed in the surface of the valve plate between the first and second fluid ports at top- and bottom-dead-center, respectively. A cross-port bore is formed in the valve plate, placing the first and second pressure relief ports in fluid communication with each other. As each cylinder rotates to top-dead-center, an opposite cylinder rotates to bottom-dead-center. The respective cylinders are coupled to the first and second pressure relief ports, such that differential pressure in the cylinders is equalized.

    摘要翻译: 液压机包括阀板,其表面具有第一和第二流体端口。 气缸筒可旋转地联接到阀板。 在缸筒中形成多个气缸,使得当筒旋转时,每个气缸依次连接到第一和第二流体端口。 第一和第二压力释放口分别形成在第一和第二流体端口之间的阀板的表面中的上下死点。 在阀板上形成十字孔,将第一和第二压力释放口彼此流体连通。 当每个气缸旋转到上止点时,相对的气缸旋转到下死点。 相应的气缸联接到第一和第二压力释放端口,使得气缸中的压差相等。

    Variable length bent-axis pump/motor
    5.
    发明授权
    Variable length bent-axis pump/motor 失效
    可变长度弯轴泵/电机

    公开(公告)号:US08356547B2

    公开(公告)日:2013-01-22

    申请号:US12701438

    申请日:2010-02-05

    IPC分类号: F01B9/02

    摘要: In a bent axis hydraulic machine, a back plate and cylinder barrel vary in distance from a drive plate as a stroke angle of the cylinder barrel changes, thereby minimizing unswept fluid volume in the cylinders of the barrel at any stroke angle. Distance is controlled by one or more rollers, engaging respective tracks that define a profile of contact that determines the distance as a function of the stroke angle. Telescoping fluid supply channels are employed to maintain a fluid supply to the cylinder barrel as the distance changes.

    摘要翻译: 在弯轴液压机中,当缸筒的行程角度发生变化时,背板和缸筒距离驱动板的距离是不同的,从而最小化筒体在任何行程角度下的流体体积。 距离由一个或多个辊子控制,与限定作为行程角度的函数的距离的接触轮廓的相应的轨道接合。 当距离变化时,使用伸缩流体供应通道来保持对缸筒的流体供应。

    Two mode dual crankshaft engine
    6.
    发明授权
    Two mode dual crankshaft engine 失效
    双模双曲轴发动机

    公开(公告)号:US08272356B2

    公开(公告)日:2012-09-25

    申请号:US12827378

    申请日:2010-06-30

    IPC分类号: F02B75/32

    摘要: A variable displacement engine comprises two engine modules fed from a common fuel source, each engine module having an individual crankshaft. The first engine module has a high compression ratio (e.g., greater than 13:1), while the second module has a typical compression ratio for a gasoline engine (e.g., between 9:1 and 11:1). In one embodiment, the first engine module operates through high efficiency optimized alcohol fuel combustion when the fuel content exceeds a minimum alcohol content. In an alternative embodiment, the first engine module operates at high efficiency through gasoline HCCI combustion when conditions permit. When operating conditions do not permit the first engine module to operate at high efficiency, the second engine module operates as the primary engine module, with the first engine module available to provide supplemental power (at less than optimal efficiency) if needed to meet driver demand.

    摘要翻译: 可变排量发动机包括从共同燃料源供给的两个发动机模块,每个发动机模块具有单独的曲轴。 第一发动机模块具有高压缩比(例如大于13:1),而第二模块具有用于汽油发动机的典型压缩比(例如在9:1至11:1之间)。 在一个实施例中,当燃料含量超过最低酒精含量时,第一发动机模块通过高效优化的醇燃料燃烧进行操作。 在替代实施例中,当条件允许时,第一发动机模块通过汽油HCCI燃烧以高效率运行。 当操作条件不允许第一发动机模块以高效率运行时,第二发动机模块作为主要发动机模块运行,如果需要满足驾驶员需求,第一发动机模块可用于提供补充功率(不到最佳效率) 。

    Hydraulic hybrid vehicle method of safe operation
    7.
    发明授权
    Hydraulic hybrid vehicle method of safe operation 有权
    液压混合动力车辆安全运行方法

    公开(公告)号:US08118132B2

    公开(公告)日:2012-02-21

    申请号:US11583205

    申请日:2006-10-18

    IPC分类号: B60K17/00

    摘要: A hydraulic hybrid vehicle includes elements such as a hydraulic pump driven by an internal combustion engine and arranged to draw in low pressure fluid and pump the fluid at high pressure to an accumulator. A hydraulic motor is powered by the pressurized fluid. Safety processes are provided for detecting and addressing a number of conditions that may arise in the operation of the hydraulic hybrid vehicle, including an initialization procedure for start-up of the vehicle, a shut-down procedure, and procedures for detecting and responding to failure of the pump or motor, internal and external fluid leaks, and non-responsive actuation and mode control systems.

    摘要翻译: 液压混合动力车辆包括诸如由内燃机驱动的液压泵的元件,并且布置成在低压流体中抽吸并且将流体以高压泵送到蓄能器。 液压马达由加压流体驱动。 提供了安全处理,用于检测和解决在液压混合动力车辆的操作中可能出现的许多条件,包括启动车辆的初始化程序,关闭程序以及检测和响应故障的程序 的泵或电机,内部和外部流体泄漏以及无响应的致动和模式控制系统。

    Quasi free piston engine
    8.
    发明授权
    Quasi free piston engine 失效
    准自由活塞发动机

    公开(公告)号:US08104436B2

    公开(公告)日:2012-01-31

    申请号:US12387369

    申请日:2009-05-01

    摘要: A quasi free piston engine uses, a small, lightweight crankshaft to connect the piston assemblies of the free piston engine with a flywheel. While most of the power output from the combustion pistons is extracted by pumping pistons as hydraulic power, the small crankshaft and flywheel ensure exact TDC position of the combustion pistons in operation, and provide a rotating means to drive combustion cylinder intake and exhaust valves. Flywheel speed may be monitored to provide feedback on power extraction for further control of the system. In addition, a hydraulic push-rod system for efficient valve actuation is provided.

    摘要翻译: 准自由活塞发动机使用小型轻型曲轴将自由活塞发动机的活塞组件与飞轮连接起来。 虽然大部分来自燃烧活塞的动力输出是通过泵送活塞作为液压动力来提取的,但是小型曲轴和飞轮确保操作中的燃烧活塞的准确的TDC位置,并提供驱动燃油缸进气和排气阀的旋转装置。 可以监测飞轮转速,以提供功率提取反馈以进一步控制系统。 另外,提供了一种用于高效阀致动的液压推杆系统。

    Large angle sliding valve plate pump/motor
    9.
    发明授权
    Large angle sliding valve plate pump/motor 失效
    大角度滑阀板泵/电机

    公开(公告)号:US07594802B2

    公开(公告)日:2009-09-29

    申请号:US10828971

    申请日:2004-04-21

    IPC分类号: F04B1/12 F01B3/00 F01B13/04

    摘要: A pump/motor includes a back plate having first and second fluid ports configured to be differentially pressurized, first and second reaction plates rigidly coupled to the back plate, and a valve plate slideably coupled to the back plate and having first and second fluid feed channels configured to receive fluid from the first and second fluid ports. A plurality of hold-down pistons is positioned in respective hold-down cylinders formed in the valve plate. Each of the hold-down pistons is configured to be biased, by pressurized fluid in the respective hold-down cylinder, against a surface of one of the reaction plates. A barrel, having a plurality of drive cylinders, is rotatably coupled to the valve plate. Drive pistons positioned in the drive cylinders are biased against a thrust plate by pressurized fluid in the drive cylinders. The thrust plate is coupled to an output shaft of the pump/motor.

    摘要翻译: 泵/马达包括具有第一和第二流体端口的后板,所述第一和第二流体端口构造成刚性耦合到背板的差分加压的第一和第二反应板,以及可滑动地联接到后板的阀板,并且具有第一和第二流体供给通道 被配置为从第一和第二流体端口接收流体。 多个压紧活塞定位在形成在阀板中的相应压紧缸中。 每个压紧活塞被构造成通过相应压紧缸中的加压流体抵靠反应板之一的表面而被偏置。 具有多个驱动缸的桶可旋转地联接到阀板。 位于驱动气缸中的驱动活塞通过驱动气缸中的加压流体偏压抵靠推力板。 止推板联接到泵/马达的输出轴上。