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1. 发明授权

US6029448A Low noise hydraulic power unit for an auto-hoist lift 失效
标题翻译：用于自动升降机的低噪音液压动力装置
公开(公告)号：US6029448A
公开(公告)日：2000-02-29
申请号：US986736
申请日：1997-12-08
申请人： Nicholas M. Hobson
发明人： Nicholas M. Hobson
IPC分类号： B66F7/16 , F04B23/02 , F15B11/04 , F15B11/042 , F16D31/02
CPC分类号： B66F7/16 , F04B23/02 , F15B11/0406 , F15B11/0423 , F15B2211/20515 , F15B2211/2053 , F15B2211/30505 , F15B2211/40515 , F15B2211/423 , F15B2211/426 , F15B2211/45 , F15B2211/50518 , F15B2211/5151 , F15B2211/615 , F15B2211/76
摘要： A hydraulic power unit for an auto-hoist lift having improved noise characteristics and a more compact design. A motor and pump driving the power unit are located inside a hydraulic fluid reservoir to thereby reduce the amount of noise reaching the immediate vicinity of the power unit. The motor and pump are submerged in the hydraulic fluid to advantageously utilize the hydraulic fluid to cool the motor. The power unit may further incorporate a delay valve for reducing the start-up torque load on the motor, thereby allowing the motor to be sized for normal operating requirements rather than oversized for start-up requirements.
摘要翻译：一种用于自动升降机升降机的液压动力装置具有改进的噪音特性和更紧凑的设计。驱动动力单元的马达和泵位于液压流体储存器内部，从而减少到达动力单元附近的噪声量。马达和泵被浸没在液压流体中以有利地利用液压流体来冷却马达。动力单元还可以包括用于减小马达上的起动转矩负载的延迟阀，从而允许马达的尺寸适合正常的运行要求，而不是超大的起动要求。

2. 发明授权

US5988989A Compact hydraulic power unit having a reservoir closed by a manifold having a hydraulic circuit 失效
标题翻译：具有由具有液压回路的歧管封闭的容器的紧凑型液压动力单元
公开(公告)号：US5988989A
公开(公告)日：1999-11-23
申请号：US986737
申请日：1997-12-08
申请人： Nicholas M. Hobson
发明人： Nicholas M. Hobson
IPC分类号： F04B17/03 , F04B23/02 , F04B49/02
CPC分类号： F04B23/021 , F04B17/03 , F04B49/02 , F04B2203/0207
摘要： A hydrualic power unit for an auto-hoist lift having a more compact motor and improved noise characteristics. The power unit having a reservoir with a closed end and an open end. A manifold attached to the open end and having an inlet port and an outlet port with a hydrualic circuit located between the ports. The hydrualic circuit having a delay valve for reducing the start-up torque load on the motor, thereby allowing the motor to be sized for normal operating requirements rather than oversized for start-up requirements. The power unit may further include a motor and pump located inside a hydrualic fluid reservoir to thereby reduce the amount of noise reaching the immediate vicinity of the power unit. The motor and pump are submerged in the hydrualic fluid to advantageously utilize the hydrualic fluid to cool the motor.
摘要翻译：用于自动升降机的水力发电机组具有更紧凑的电机和改善的噪声特性。动力单元具有封闭端和开口端的储存器。附接到开口端并具有入口端口和出口的歧管，其具有位于端口之间的水力回路。水力回路具有延迟阀，用于减小马达上的启动扭矩负载，从而允许马达的尺寸适合正常的运行要求，而不是超大的起动要求。动力单元还可以包括位于水力储存器内部的马达和泵，从而减少到达动力单元附近的噪声量。马达和泵被浸没在水力流体中以有利地利用水力流体来冷却马达。

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