Energy harvesting power-assist system and method for light vehicles

    公开(公告)号:US10479443B2

    公开(公告)日:2019-11-19

    申请号:US15572530

    申请日:2016-11-06

    IPC分类号: B62M6/50 B62M6/55 B62M6/90

    摘要: Disclosed is an energy harvesting power-assist system and method for human powered light vehicles. The power-assist system comprises a drive mechanism, one or more motor/generators and a high capacity storage device. The system continuously harvests and stores energy which is converted to motion by the motors, providing additional power to the user's pedaling. A controller determines the amount of pedal assist based on a user's preset value, and manages the charge and discharge of the high capacity storage device. As such, the system does not require any other external energy source, and the storage device never needs external charging under the described usage cases.

    AN ENERGY HARVESTING POWER-ASSIST SYSTEM AND METHOD FOR LIGHT VEHICLES

    公开(公告)号:US20180154981A1

    公开(公告)日:2018-06-07

    申请号:US15572530

    申请日:2016-11-06

    IPC分类号: B62M6/50 B62M6/90 B62M6/55

    摘要: Disclosed is an energy harvesting power-assist system and method for human powered light vehicles. The power-assist system comprises a drive mechanism, one or more motor/generators and a high capacity storage device. The system continuously harvests and stores energy which is converted to motion by the motors, providing additional power to the user's pedaling. A controller determines the amount of pedal assist based on a user's preset value, and manages the charge and discharge of the high capacity storage device. As such, the system does not require any other external energy source, and the storage device never needs external charging under the described usage cases.

    Tubular stabbing protector and method
    3.
    发明授权
    Tubular stabbing protector and method 有权
    管刺刺保护器及方法

    公开(公告)号:US07237607B2

    公开(公告)日:2007-07-03

    申请号:US10524874

    申请日:2004-12-02

    IPC分类号: E21B25/00 F16L25/00

    CPC分类号: E21B19/24 E21B17/006

    摘要: A tubular stabbing protector includes: a plurality of body sections together forming a first opening and a second opening, the first opening sized to be secured over a pin end of an oilfield tubular and the second opening sized to fit over a connection to which the pin end of the tubular is to be engaged and opening away from the first opening; and a releasable lock between each adjacent body section of the plurality of body sections, the releasable lock being automatically releasable when the second opening is fit over the connection to permit the plurality of body sections to separate sufficiently to release the pin end.

    摘要翻译: 管状刺破保护器包括:多个主体部分,一起形成第一开口和第二开口,第一开口的尺寸被设置成固定在油田管状件的销端上,第二开口的尺寸适于安装在连接件上, 管状端部将被接合并从第一开口开口; 以及在所述多个主体部分的每个相邻主体部分之间的可释放的锁定,当所述第二开口装配在所述连接件上方时,所述可释放的锁可自动释放,以允许所述多个主体部分被充分地分离以释放销端。