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1. 发明申请

US20030132310A1 Fluid sprayer system using modulated control valve and a positive displacement pump 有权
标题翻译：流体喷雾器系统采用调制控制阀和容积式泵
公开(公告)号：US20030132310A1
公开(公告)日：2003-07-17
申请号：US10264671
申请日：2002-10-04
申请人： The Toro Company
发明人： Brannon Polk , John Story , Kent Stephen Hahn
IPC分类号： B05B001/20
CPC分类号： B05B9/0409 , B05B9/06
摘要： A fluid sprayer system using a modulated hydraulic control valve and a positive displacement pump to control the amount of fluid sprayed by the system. The modulated hydraulic control valve may be controlled using pulse width modulation and may be provided with a substantially constant source of hydraulic fluid. The pulse width modulated hydraulic control valve provides the hydraulic fluid to a hydraulic motor as a controlled flow. The controlled flow serves to control the hydraulic motor that controls a positive displacement pump. The position displacement pump is used to control the amount of fluid sprayed by the system. The control system changes the signal to the control valve so as to mitigate pressure changes otherwise caused by said positive displacement pump.
摘要翻译：一种使用调制液压控制阀和容积式泵来控制由系统喷洒的液体量的流体喷射器系统。可以使用脉冲宽度调制来控制调制液压控制阀，并且可以设置基本恒定的液压流体源。脉宽调制液压控制阀将液压流体作为受控流量提供给液压马达。受控流量用于控制控制正排量泵的液压马达。位置泵用于控制系统喷洒的液体量。控制系统将信号改变为控制阀，以便减轻由所述容积式泵引起的压力变化。

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