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1. 发明申请

WO1997005394A1 ELECTRO-HYDRAULIC SHOWER OSCILLATOR FOR PAPERMAKING 审中-公开
标题翻译：电动水龙头振动器用于造纸
公开(公告)号：WO1997005394A1
公开(公告)日：1997-02-13
申请号：PCT/US1996012363
申请日：1996-07-24
申请人： THERMO FIBERTEK INC.
发明人： THERMO FIBERTEK INC. , HINCHLIFFE, James, Peter
IPC分类号： F15B13/16
CPC分类号： F15B13/16
摘要： The apparatus (10) is an oscillator for a showerhead (31) to keep the forming fabric of a papermaking machine clean and open. A hydraulic cylinder (12) is formed with a piston cup assembly (32) dividing the cylinder into first and second fluid chambers (36, 38). The piston cup assembly is coupled to a magnet (30) and a driveshaft (24), the driveshaft being coupled, in turn, to the showerhead to be oscillated. A four-way valve (48) is used to direct fluid from a pressurized external source alternately into the first and second fluid chambers thereby causing reciprocation of the driveshaft. The position of the magnet, and hence the driveshaft and showerhead, is monitored by a transducer (44) which sends position and rate signals to a microprocessor-based controller (46). The microprocessor-based controller sends a signal to the four-way valve to direct which of the first and second fluid chambers receives fluid from the pressurized source in order to achieve the desired parameters of reciprocation. Additionally, the microprocessor-based controller provides an alarm signal should the driveshaft rate drop below a preset value.
摘要翻译：设备（10）是用于使造纸机的成形织物保持干净和打开的用于喷头（31）的振荡器。液压缸（12）形成有将气缸分成第一和第二流体室（36,38）的活塞杯组件（32）。活塞杯组件联接到磁体（30）和驱动轴（24），驱动轴又连接到喷头以进行摆动。四通阀（48）用于将来自加压外部源的流体交替地引导到第一和第二流体室中，从而导致驱动轴的往复运动。磁体的位置以及驱动轴和喷头的位置由向基于微处理器的控制器（46）发送位置和速率信号的换能器（44）监视。基于微处理器的控制器将信号发送到四通阀，以指导第一和第二流体室中的哪一个接收来自加压源的流体，以便实现所需的往复运动参数。此外，如果驱动轴速率降到预设值以下，则基于微处理器的控制器提供报警信号。

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