公开(公告)号：EP0294662A3

公开(公告)日：1989-10-25

申请号：EP88108451.1

申请日：1988-05-27

申请人： DYNEER CORPORATION

发明人： Dull, David A. ,  Taden, Richard K.

IPC分类号： B60K17/356

CPC分类号： F16H61/456 ,  B60K17/356 ,  F16H61/452 ,  Y10T137/86879

摘要： A fluid control valve (88) for controlling the flow of hydraulic fluid at a high pressure from a primary pump (50) and the flow of the hydraulic fluid at a low charge pressure from a charge pump (62) to cam-lobe type hydraulic motors (12) which are used to assist in driving a vehicle. When energizing the motors, charge pressure is first delivered to the motors. Thereafter, all of the supply and return lines (94, 96) leading to the motors (12) and to the primary pump (50) and the charge pump (62) are connected together to further increase the pressure delivered to the motors. Finally, the charge pressure line (72) is disconnected and the supply and return lines (94, 96) leading to the motors are connected to the high pressure supply and return lines (52, 54) leading to the primary pump. When the supply and return lines leading to the motors are disconnected from the primary pump, the lines leading to the motors are drained into a reservoir. An accumulator is provided within the motors to absorb sudden pressure delivered thereto. The flow of charge pressure fluid which controls the shifting of the spool is restricted by an orifice to control the rate of shifting and to provide sufficient time for gradually introducing the high pressure to the motors.

摘要翻译： 一种流体控制阀（88），其用于控制​​来自主泵（50）的高压的液压流体的流动和来自充注泵（62）的低充气压力下的液压流体到凸轮凸轮型液压 用于辅助驾驶车辆的电动机（12）。 当给电机通电时，充电压力首先传送给电机。 此后，通向马达（12）和主泵（50）以及补油泵（62）的所有供应管线和回流管线（94,96）连接在一起，以进一步增加输送到马达的压力。 最后，加注压力管线（72）断开，并且通向马达的供应管线和回流管线（94,96）连接到通向主泵的高压供应管线和回流管线（52,54）。 当通向电机的供电线路和回流线路与主泵断开连接时，通向电机的线路将被排入储液器。 蓄电池设置在电动机内以吸收输送到其上的突然压力。 控制阀芯移动的补油压力流体的流动受节流孔的限制，以控制移动速率并提供足够的时间以逐渐将高压引入马达。

公开(公告)号：EP0294662B1

公开(公告)日：1992-11-19

申请号：EP88108451.1

申请日：1988-05-27

申请人： DYNEER CORPORATION

发明人： Dull, David A. ,  Taden, Richard K.

IPC分类号： B60K17/356

CPC分类号： F16H61/456 ,  B60K17/356 ,  F16H61/452 ,  Y10T137/86879

公开(公告)号：EP0294662A2

公开(公告)日：1988-12-14

申请号：EP88108451.1

申请日：1988-05-27

申请人： DYNEER CORPORATION

发明人： Dull, David A. ,  Taden, Richard K.

IPC分类号： B60K17/356

CPC分类号： F16H61/456 ,  B60K17/356 ,  F16H61/452 ,  Y10T137/86879

摘要： A fluid control valve (88) for controlling the flow of hydraulic fluid at a high pressure from a primary pump (50) and the flow of the hydraulic fluid at a low charge pressure from a charge pump (62) to cam-lobe type hydraulic motors (12) which are used to assist in driving a vehicle. When energizing the motors, charge pressure is first delivered to the motors. Thereafter, all of the supply and return lines (94, 96) leading to the motors (12) and to the primary pump (50) and the charge pump (62) are connected together to further increase the pressure delivered to the motors. Finally, the charge pressure line (72) is disconnected and the supply and return lines (94, 96) leading to the motors are connected to the high pressure supply and return lines (52, 54) leading to the primary pump. When the supply and return lines leading to the motors are disconnected from the primary pump, the lines leading to the motors are drained into a reservoir. An accumulator is provided within the motors to absorb sudden pressure delivered thereto. The flow of charge pressure fluid which controls the shifting of the spool is restricted by an orifice to control the rate of shifting and to provide sufficient time for gradually introducing the high pressure to the motors.

摘要翻译： 一种流体控制阀（88），用于控制来自主泵（50）的高压下的液压流体的流动和来自电荷泵（62）的低加压压力的液压流体流向凸轮式液压 用于协助驾驶车辆的电动机（12）。 当电动机通电时，首先将充气压力传递给电动机。 此后，通向马达（12）和主泵（50）和电荷泵（62）的所有供应和返回管线（94,96）连接在一起，以进一步增加传递给马达的压力。 最后，充电压力线（72）断开，并且通向电动机的供给和返回管线（94,96）连接到通向主泵的高压供应和返回管线（52,54）。 当通向电动机的供应和返回管路与主泵断开时，通向电动机的管线被排放到储存器中。 在电动机内设有蓄能器以吸收输送到其上的突然的压力。 控制阀芯移动的加压压力流体的流量由孔口限制，以控制换档速度，并为马达逐渐引入高压提供足够的时间。