公开(公告)号：US5303551A

公开(公告)日：1994-04-19

申请号：US981218

申请日：1992-11-25

Applicant: Jin-Han Lee

Inventor： Jin-Han Lee

IPC: E02F9/22 ,  F02D29/04 ,  F16D31/02

CPC classification number: F02D29/04 ,  E02F9/2221 ,  E02F9/2246 ,  E02F9/2292 ,  E02F9/2296

Abstract: The present invention relates to a flow rate control apparatus for a hydraulic pump which is employed suitably in a hydraulic excavator or a hydraulic crane and driven by a rotating force of a motor. The flow rate control apparatus controls the discharging flow rate of the hydraulic pump to utilize the output power of the motor without an overload applied to the motor, and optimally controls the output flow rate of the pump depending upon an operation signal to provide an excellent operating characteristic to an operator under a high load operating condition applied to a hydraulic machine having hydraulic actuators driven on the basis of the discharge flow of the hydraulic pump.

Abstract translation: 本发明涉及一种用于液压泵的流量控制装置，其适用于液压挖掘机或液压起重机并由马达的旋转力驱动。 流量控制装置控制液压泵的排出流量，以利用电动机的输出功率，而不会对电动机施加过载，并根据操作信号最佳地控制泵的输出流量，以提供良好的操作 特征在于在高负载运行条件下的操作者，该液压机械具有基于液压泵的排放流动驱动的液压致动器。

公开(公告)号：US5659485A

公开(公告)日：1997-08-19

申请号：US233517

申请日：1994-04-26

Applicant: Jin-Han Lee

Inventor： Jin-Han Lee

IPC: E02F9/22 ,  F04B1/24 ,  F04B49/00 ,  F04B49/06 ,  F15B7/00 ,  F15B11/00 ,  G05D7/06 ,  F16D31/02

CPC classification number: G05D7/0682 ,  F04B49/065 ,  F04B2201/12051 ,  F04B2203/0605 ,  F04B2205/05 ,  F04B2207/00 ,  F15B2211/20546 ,  F15B2211/26 ,  F15B2211/265 ,  F15B2211/633

Abstract: A discharge flow control system and method of a hydraulic pump driven by an engine for the minimization of the difference between a discharge mount of flow in the pump and total mount of operating oil necessary to operate each actuator in hydraulic equipment. The control system is provided with a detector which detects the number of rotation of the engine, generates equal number of pulses to the number of rotation, a detector which detects the tilt angle of a swash plate of the pump, a detector which detects the operating displacement of the actuator, a detector which detects the load pressure acting on the pump, and a controll unit which controls a target discharge flow mount of the pump which is suitable for performing a predetermined work based on the number of rotation, the tilt angle, the displacement and the load pressure.

Abstract translation: 一种由发动机驱动的液压泵的排放流量控制系统和方法，用于最小化在泵中的流量的排放装置与在液压设备中操作每个致动器所需的操作油的总体安装之间的差异。 控制系统设置有检测发动机的旋转次数的检测器，产生与旋转次数相等的脉冲数，检测泵的斜盘倾斜角的检测器，检测泵的旋转斜盘角度的检测器 执行器的位移，检测作用在泵上的负载压力的检测器，以及控制单元，其控制适于基于旋转次数，倾斜角度等进行预定工作的泵的目标排出流动支架， 位移和负载压力。