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1. 发明授权

EP0801231B1 Control system with induced load isolation and relief 失效
标题翻译：控制系统，所述负载诱导的疾病中分离，并减少
公开(公告)号：EP0801231B1
公开(公告)日：2000-09-27
申请号：EP97302388.0
申请日：1997-04-08
申请人： Commercial Intertech Corp.
发明人： Coolidge, Gregory T.
IPC分类号： F15B11/16 , E02F9/22
CPC分类号： E02F9/2296 , E02F9/2225 , F15B11/168 , F15B2211/20553 , F15B2211/30555 , F15B2211/329 , F15B2211/351 , F15B2211/353 , F15B2211/40515 , F15B2211/455 , F15B2211/6052 , F15B2211/6054 , F15B2211/6058 , F15B2211/65 , F15B2211/71 , F15B2211/78

2. 发明公开

EP0868337A4 TOWED VEHICLE BRAKE SYSTEM 失效
标题翻译：制动系统的车辆TOW
公开(公告)号：EP0868337A4
公开(公告)日：2000-07-19
申请号：EP96945404
申请日：1996-12-20
申请人： COMMERCIAL INTERTECH CORP
发明人： CORDS FREDERICK W , FRYE DAVID E , SWANSON JEFFREY S
IPC分类号： B60T11/10 , B60T13/74 , B60T13/18
CPC分类号： B60T13/745 , B60T11/108
摘要： A hydraulic control system configured for use with a towed vehicle hydraulic brake system controls the pressure of the hydraulic fluid provided to the brake as a function of an operator-selected input. A hydraulic pressure control manifold (12) is coupled between a pump (34) and the towed vehicle brake and controls the pressure of the hydraulic fluid supplied to the brake (45) with a plurality of pressure relief check valves (35, 36, 37) interconnected in a parallel hydraulic circuit between the pump and the brake. A plurality of on-off valves (38, 39) are connected in a series hydraulic circuit with the check valves. The pressure relief levels of the check valves correspond to a plurality of towed vehicle braking forces. An operator of a towing vehicle chooses a desired one of the plurality of braking forces through a selector switch (22). When a desired braking force is chosen, appropriate on-off valves in the hydraulic pressure control manifold are closed or opened, thereby enabling or disabling appropriate check valves and controlling the pressure of the hydraulic fluid supplied to the brake and the corresponding towed vehicle braking force.

3. 发明公开

EP0868337A1 TOWED VEHICLE BRAKE SYSTEM 失效
标题翻译：制动系统的车辆TOW
公开(公告)号：EP0868337A1
公开(公告)日：1998-10-07
申请号：EP96945404.0
申请日：1996-12-20
申请人： Commercial Intertech Corp.
发明人： CORDS, Frederick, W. , FRYE, David, E. , SWANSON, Jeffrey, S.
IPC分类号： B60T11 , B60T13
CPC分类号： B60T13/745 , B60T11/108
摘要： A hydraulic control system configured for use with a towed vehicle hydraulic brake system controls the pressure of the hydraulic fluid provided to the brake as a function of an operator-selected input. A hydraulic pressure control manifold (12) is coupled between a pump (34) and the towed vehicle brake and controls the pressure of the hydraulic fluid supplied to the brake (45) with a plurality of pressure relief check valves (35, 36, 37) interconnected in a parallel hydraulic circuit between the pump and the brake. A plurality of on-off valves (38, 39) are connected in a series hydraulic circuit with the check valves. The pressure relief levels of the check valves correspond to a plurality of towed vehicle braking forces. An operator of a towing vehicle chooses a desired one of the plurality of braking forces through a selector switch (22). When a desired braking force is chosen, appropriate on-off valves in the hydraulic pressure control manifold are closed or opened, thereby enabling or disabling appropriate check valves and controlling the pressure of the hydraulic fluid supplied to the brake and the corresponding towed vehicle braking force.

4. 发明公开

EP0827572A4 POWER-ASSISTED HYDRAULIC STEERING SYSTEM 失效
标题翻译： HYDRAULISCHE HILFSKRAFTLENKEINRICHTUNG
公开(公告)号：EP0827572A4
公开(公告)日：1998-09-23
申请号：EP96920303
申请日：1996-05-20
申请人： COMMERCIAL INTERTECH CORP
发明人： FRYE DAVID E , CORDS FREDERICK W
IPC分类号： B62D5/065 , B63H25/12 , B63H25/30 , B63H25/42 , F16D31/02 , F15B11/08 , F15B13/04
CPC分类号： B63H25/30 , B62D5/065 , B63H25/12
摘要： A power-assisted hydraulic steering system (10) of the type having a steering linkage (24) extending through a housing for coupling a steering wheel (22) to a steering actuator (26), an electrically actuated hydraulic pump (12), and a tank (14) of hydraulic fluid. The steering system includes a boost cylinder (32) connected to the steering actuator (26), a hydraulic spool valve (30) fluidly coupling the pump (12) and tank (14) to the boost cylinder (32), and a switch (34) coupled to the pump (12). A spool (40) is biased to a neutral position by a centering spring (42) which establishes a power-assist threshold. When steering forces applied to the steering actuator by rotation of the steering wheel (22) are less than the power-assist threshold, the spool (40) will remain in the neutral position with the pump (12) switched off. When steering forces applied are greater than the power-assist threshold, the linkage housing (24) forces the spool (40) to the retracted position, thereby switching the pump on and driving the boost cylinder (32) and steering actuator (26) through a power-assist stroke.
摘要翻译：一种动力辅助液压转向系统（10），其具有延伸穿过用于将方向盘（22）联接到转向致动器（26）的壳体的转向联动装置（24），电驱动液压泵（12）和一个液压油箱（14）。转向系统包括连接到转向致动器（26）的增压缸（32），将泵（12）和油箱（14）流体连接到增压缸（32）的液压滑阀（30），以及开关 34）联接到泵（12）。阀芯（40）通过建立动力辅助阈值的定心弹簧（42）偏压到中间位置。当通过方向盘（22）的旋转施加到转向致动器的转向力小于动力辅助阈值时，在泵（12）关闭的情况下，阀芯（40）将保持在中立位置。当施加的转向力大于助力阈值时，连杆壳体（24）迫使阀芯（40）至缩回位置，从而接通泵并驱动增压缸（32）和转向致动器（26）助力冲程。

5. 发明公开

EP0827572A1 POWER-ASSISTED HYDRAULIC STEERING SYSTEM 失效
标题翻译：液压辅助转向装置
公开(公告)号：EP0827572A1
公开(公告)日：1998-03-11
申请号：EP96920303.0
申请日：1996-05-20
申请人： Commercial Intertech Corp.
发明人： FRYE, David, E. , CORDS, Frederick, W.
IPC分类号： B62D5 , B63H25
CPC分类号： B63H25/30 , B62D5/065 , B63H25/12
摘要： A power-assisted hydraulic steering system (10) of the type having a steering linkage (24) extending through a housing for coupling a steering wheel (22) to a steering actuator (26), an electrically actuated hydraulic pump (12), and a tank (14) of hydraulic fluid. The steering system includes a boost cylinder (32) connected to the steering actuator (26), a hydraulic spool valve (30) fluidly coupling the pump (12) and tank (14) to the boost cylinder (32), and a switch (34) coupled to the pump (12). A spool (40) is biased to a neutral position by a centering spring (42) which establishes a power-assist threshold. When steering forces applied to the steering actuator by rotation of the steering wheel (22) are less than the power-assist threshold, the spool (40) will remain in the neutral position with the pump (12) switched off. When steering forces applied are greater than the power-assist threshold, the linkage housing (24) forces the spool (40) to the retracted position, thereby switching the pump on and driving the boost cylinder (32) and steering actuator (26) through a power-assist stroke.

6. 发明公开

EP0801231A1 Control system with induced load isolation and relief 失效
标题翻译： Steuersystem，das lastinduzierteStörungenisoliert und mindert
公开(公告)号：EP0801231A1
公开(公告)日：1997-10-15
申请号：EP97302388.0
申请日：1997-04-08
申请人： Commercial Intertech Corp.
发明人： Coolidge, Gregory T.
IPC分类号： F15B11/16 , E02F9/22
CPC分类号： E02F9/2296 , E02F9/2225 , F15B11/168 , F15B2211/20553 , F15B2211/30555 , F15B2211/329 , F15B2211/351 , F15B2211/353 , F15B2211/40515 , F15B2211/455 , F15B2211/6052 , F15B2211/6054 , F15B2211/6058 , F15B2211/65 , F15B2211/71 , F15B2211/78
摘要： A pressure-responsive hydraulic control system (10) having a plurality of work sections (11, 12), a load-sensing flow-compensated source (S) which creates a margin pressure connected by a parallel flow inlet conduit (19) to the work sections and having a source return line (18), a hydraulic motor (25, 25') in each of the work sections operatively connected to a load (Load 1, Load 2), a direction control valve (26, 26') in each of the work sections connected to the inlet conduit and to the hydraulic motor, metering notches (33, 33') in the direction control valves controlling the flow of fluid from the source to the hydraulic motor, a pressure compensator valve in each of the work sections inputting flow-metered fluid from the metering notches and outputting flow-regulated fluid to the hydraulic motor, the pressure compensator valves having flow-metered pressure acting on one end thereof and a spring and a compensator control signal operating on the other end thereof, a flow-regulated logic check system (45) interconnecting each of the work sections and providing a flow-regulated maximum output signal, a flow-metered logic check system (40) interconnecting each of the work sections and providing a flow-metered maximum output signal, and an isolation circuit (60, 160, 260) having an isolation valve (61, 161, 261) and a relief valve (67, 167, 267) and receiving the flow-regulated maximum output signal and the flow-metered maximum output signal and supplying a load signal to the source return line and an isolation outlet signal to an induced load check system (70) also receiving a flow-regulated fluid signal from each of the work sections and supplying as the compensator control signal to each of the work sections the highest pressure signal of the isolation outlet signal and the flow-regulated fluid signal for the work section, whereby the pressure compensating valves and the relief valve are isolated from induced loads introduced in the flow-regulated maximum output signal by the load on the hydraulic motor of at least one of the work sections. A work section (411) may be provided with adjustable flow limiting valves (413, 414) for restricting flow to direction control valve 426. In lieu of an isolation circuit, a relief circuit (360) may be provided for certain applications.
摘要翻译：具有多个工作部分（11,12）的压力响应液压控制系统（10），负载感测流量补偿源（S），其产生通过平行流入口管道（19）连接到工作部分并具有源返回线（18），每个工作部分中的液压马达（25,25'）可操作地连接到负载（负载1，负载2），方向控制阀（26,26'）在连接到入口管道和液压马达的每个工作部分中，在控制阀中的计量凹口（33,33'）控制从源到液压马达的流体流动，每个中的压力补偿阀工作部分从计量凹口输入流量流体并将流量调节流体输出到液压马达，压力补偿阀具有作用在其一端的流量计压力和在另一端操作的补偿器控制信号流量调节器l 连接每个工作部分并提供流量调节的最大输出信号的流量计检查系统（45），连接每个工作部分并提供流量计量的最大输出信号的流量计逻辑检查系统（40），以及具有隔离阀（61,161,261）和安全阀（67,167,267）的隔离电路（60,160,260），并且接收流量调节的最大输出信号和流量计量的最大输出信号并提供向源返回管线的负载信号和到感应负载检查系统（70）的隔离出口信号，还从每个工作部分接收流量调节的流体信号，并且作为补偿器控制信号提供给每个工作部分隔离出口信号的最高压力信号和工作部分的流量调节流体信号，由此压力补偿阀和安全阀与引入流量调节最大输出s的感应负载隔离通过至少一个工作部分的液压马达上的负载来点燃。工作部分（411）可以设置有用于限制流向方向控制阀426的可调节限流阀（413,414）。代替隔离电路，可以为某些应用提供释放电路（360）。

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