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1. 发明申请

US20150082783A1 ENERGY REGENERATION TYPE FORKLIFT HYDRAULIC SYSTEM 有权
标题翻译：能源再生型液压系统
公开(公告)号：US20150082783A1
公开(公告)日：2015-03-26
申请号：US14387832
申请日：2013-02-25
申请人： ANHUI HELI CO., LTD
发明人： Qingfeng Ma , Yueqing Wen , Yuan Tian , Li Zhang , Qiqi Zhou , Tianfu Wu
IPC分类号： F15B21/14 , B66F9/22
CPC分类号： F15B21/14 , B66F9/22
摘要： An energy regeneration type forklift hydraulic system is provided, which includes a first oil pump, a first electrical motor, a multiple directional control valve, a lifting oil cylinder, a tilting oil cylinder, a steering oil cylinder, a load-sensing steering device, an oil filter, a second oil pump and an oil tank, wherein the multiple directional control valve includes an oil inletting and returning valve spool, a raising and lowering reversing valve spool, a tilting reversing valve spool, and an oil inletting valve spool. The raising and lowering reversing valve spool includes a raising and lowering three-position six-way reversing valve, an annular oil returning passage and an oil returning passage. The system can utilize the potential energy of lowering cargo to simultaneously drive two oil pumps for driving two motors to generate energy, thereby realizing energy recovery.
摘要翻译：提供了一种能量再生型叉车液压系统，其包括第一油泵，第一电动机，多方向控制阀，提升油缸，倾斜油缸，转向油缸，负载感测转向装置，油过滤器，第二油泵和油箱，其中所述多方向控制阀包括进油和回流阀阀芯，升降换向阀阀芯，倾斜换向阀阀芯和进油阀阀芯。升降换向阀阀芯包括升降三位六通换向阀，环形回油通道和回油通道。该系统可以利用降低货物的潜力，同时驱动两个油泵驱动两个电机产生能量，从而实现能量回收。

2. 发明授权

US09482248B2 Energy regeneration type forklift hydraulic system 有权
标题翻译：能量再生式叉车液压系统
公开(公告)号：US09482248B2
公开(公告)日：2016-11-01
申请号：US14387832
申请日：2013-02-25
申请人： ANHUI HELI CO., LTD
发明人： Qingfeng Ma , Yueqing Wen , Yuan Tian , Li Zhang , Qiqi Zhou , Tianfu Wu
IPC分类号： F16D31/02 , F15B21/14 , B66F9/22
CPC分类号： F15B21/14 , B66F9/22
摘要： An energy regeneration type forklift hydraulic system is provided, which includes a first oil pump, a first electrical motor, a multiple directional control valve, a lifting oil cylinder, a tilting oil cylinder, a steering oil cylinder, a load-sensing steering device, an oil filter, a second oil pump and an oil tank, wherein the multiple directional control valve includes an oil inletting and returning valve spool, a raising and lowering reversing valve spool, a tilting reversing valve spool, and an oil inletting valve spool. The raising and lowering reversing valve spool includes a raising and lowering three-position six-way reversing valve, an annular oil returning passage and an oil returning passage. The system can utilize the potential energy of lowering cargo to simultaneously drive two oil pumps for driving two motors to generate energy, thereby realizing energy recovery.
摘要翻译：提供了一种能量再生型叉车液压系统，其包括第一油泵，第一电动机，多方向控制阀，提升油缸，倾斜油缸，转向油缸，负载感测转向装置，油过滤器，第二油泵和油箱，其中所述多方向控制阀包括进油和回流阀阀芯，升降换向阀阀芯，倾斜换向阀阀芯和进油阀阀芯。升降换向阀阀芯包括升降三位六通换向阀，环形回油通道和回油通道。该系统可以利用降低货物的潜力，同时驱动两个油泵驱动两个电机产生能量，从而实现能量回收。

3. 发明申请

US20230072784A1 MOVEMENT BUFFERING CONTROL SYSTEM AND METHOD FOR FORKLIFT TILT CYLINDER BASED ON ANGLE COMPENSATION 有权
公开(公告)号：US20230072784A1
公开(公告)日：2023-03-09
申请号：US17797729
申请日：2021-05-26
申请人： ANHUI HELI CO., LTD.
发明人： Qiang SONG , Xuesong YANG , Tao XU , Falu WANG , Zhenjian XUE
IPC分类号： B66F9/22 , B66F9/08 , B66F9/075 , F15B15/16 , F15B13/02
摘要： The present application provides a movement buffering control system and method for forklift tilt cylinder based on angle compensation in the field of forklift control, which includes a tilt cylinder configured to control forward and backward tilting of a mast of a forklift and a lift cylinder configured to control the lifting of a fork, and further includes a controller, wherein a signal input terminal of the controller is connected to a first angle sensor to measure a tilt angle of the mast relative to a vertical plane, a second angle sensor to measure a tilt angle of a vehicle body relative to a level ground, and a pressure sensor, and wherein a signal output terminal of the controller is connected to a display, a forward-tilting proportional valve to control the oil for forward-tilting of the tilt cylinder.

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