公开(公告)号：US08950704B2

公开(公告)日：2015-02-10

申请号：US13036032

申请日：2011-02-28

申请人： Xuanzhe Hu ,  Zhenhua Hu ,  Aiwu Hu

发明人： Xuanzhe Hu ,  Zhenhua Hu ,  Aiwu Hu

IPC分类号： B64F1/02 ,  B64F1/06

CPC分类号： B64F1/06

摘要： A cold-launch device, including a high-energy gas resource, a gas cylinder, a control valve, a gas-liquid mixing cylinder having a cylinder body, the high-energy gas resource is connected to the gas cylinder whereby supplying energy thereto, and the gas cylinder is connected to an terminal of the gas-liquid mixing cylinder via the control valve and a connecting pipe.

摘要翻译： 一种冷启动装置，包括高能气体资源，气瓶，控制阀，具有缸体的气液混合缸，高能气体源连接到气缸，从而向其供应能量， 并且气瓶经由控制阀和连接管连接到气液混合缸的端子。

公开(公告)号：US06546725B2

公开(公告)日：2003-04-15

申请号：US09740743

申请日：2000-12-19

申请人： Xuanzhe Hu ,  Aiwu Hu ,  Zhenhua Hu

发明人： Xuanzhe Hu ,  Aiwu Hu ,  Zhenhua Hu

IPC分类号： F16D3102

CPC分类号： B66F3/24

摘要： A continuously auto lifting and lowering hydraulic jack comprises a base, an oil pump, working oil cylinder, a piston, an oil box, an accumulator, a two-position and two-way valve, a dual-controlling check, a pressure-set check and other checks. The two-position and two-way valve, the dual-controlling check and the pressure-set check are arranged in a straight line; a valve bore is formed in the base to serve as a common valve bore for the two-position and two-way valve, the dual-controlling check and the pressure-set check. Valve members of the two-position and two-way valve, the dual-controlling check and the pressure-set check are disposed sequentially in the valve bore in series; a tappet is positioned between the two-position and two-way valve and the dual-controlling check; and another tappet is positioned between the dual-controlling check and the pressure-set check. Also disclosed is a hydraulic circuit for the hydraulic jack.