公开(公告)号：US4376371A

公开(公告)日：1983-03-15

申请号：US195382

申请日：1980-10-09

Applicant: Yasuo Kojima ,  Koichi Morita ,  Kenzo Hoashi ,  Taketo Aruga

Inventor： Yasuo Kojima ,  Koichi Morita ,  Kenzo Hoashi ,  Taketo Aruga

IPC: B60R16/08 ,  B60K17/10 ,  B62D11/04 ,  B62D11/18 ,  F15B13/09

CPC classification number: B62D11/18 ,  B60K17/10

Abstract: A hydraulic circuit for a hydraulically driven vehicle comprising a pair of variable displacement hydraulic pumps, a pair of hydraulic motors each connected with the respective variable displacement pumps in a closed loop, and a straight run compensator valve connected between the respective closed loops for equalizing fluid pressure in both closed loops when the vehicle is set in a straight run thereby assuring a steady straight run of the vehicle irrespective of the difference in displacement of the respective variable displacement pumps.

Abstract translation: 一种用于液压驱动车辆的液压回路，包括一对可变排量液压泵，一对液压马达，每个液压马达各自与闭合回路中的可变排量泵连接，以及连接在相应闭合回路之间的直行程补偿阀，用于均衡流体 当车辆设置在直线运行中时，两个闭合回路中的压力，由此确保车辆的稳定的直线行驶，而与各个可变排量泵的位移的差异无关。

公开(公告)号：US4324098A

公开(公告)日：1982-04-13

申请号：US122273

申请日：1980-02-19

Applicant: Taketo Aruga ,  Koichi Morita ,  Kenzo Hoashi ,  Yasuo Kojima

Inventor： Taketo Aruga ,  Koichi Morita ,  Kenzo Hoashi ,  Yasuo Kojima

IPC: B62D11/04 ,  F16H61/40 ,  F16H61/4043 ,  F16H39/46

CPC classification number: F16H61/456 ,  F16H61/42 ,  F16H61/423

Abstract: A hydraulic circuit for a hydraulically driven vehicle comprising a pair of variable displacement pumps each driven by a common engine, a pair of variable displacement motors each connected with the respective variable displacement pumps in a closed loop circuit and driven thereby, a fixed displacement charge pump driven by the engine, and a pair of shuttle valves each connected in parallel with the respective closed loop circuits and has formed therein a neutral position and two offset positions wherein in the neutral positions of the shuttle valves both the closed loop circuits are connected with each other through the shuttle valves.

Abstract translation: 一种用于液压驱动车辆的液压回路，包括一对各自由公共发动机驱动的可变排量泵，一对可变排量电动机，每个可变排量电动机以闭环回路并由其驱动的相应可变排量泵连接，固定排量电荷泵 由发动机驱动的一对往复阀和各自与各个闭环回路并联连接的梭阀，并且在其中形成有中立位置和两个偏移位置，其中在往复阀的中间位置，两个闭环回路与每个 其他通过梭阀。

公开(公告)号：US4317331A

公开(公告)日：1982-03-02

申请号：US98050

申请日：1979-11-28

Applicant: Taketo Aruga ,  Koichi Morita

Inventor： Taketo Aruga ,  Koichi Morita

IPC: B60K17/10 ,  B60T1/08 ,  B60T7/12 ,  B60T10/00 ,  B60T11/10 ,  B60T13/22 ,  B60T15/36 ,  B60W10/02 ,  B60W10/12 ,  B60W10/18 ,  F15B11/044 ,  F16H61/66 ,  F16H39/04 ,  F16H39/46

CPC classification number: F16H61/66 ,  B60T1/08 ,  B60T11/103 ,  B60T13/22 ,  B60T7/12 ,  B60W10/10 ,  B60W10/18 ,  F15B11/0445 ,  F16H61/4157 ,  F16H61/46 ,  F16H63/483 ,  F15B2211/20553 ,  F15B2211/20561 ,  F15B2211/30505 ,  F15B2211/40515 ,  F15B2211/41536 ,  F15B2211/428 ,  F15B2211/45 ,  F15B2211/613 ,  F15B2211/6355 ,  F15B2211/7058 ,  F15B2211/715 ,  F16H2063/3033

Abstract: A hydraulic circuit for a hydraulically driven vehicle comprising an engine, a variable displacement pump driven by the engine, a hydraulic motor connected with the variable displacement pump and driven thereby, the hydraulic motor having an output shaft connected thereto, a first fixed displacement pump driven by the engine, an inching brake valve connected with the first fixed displacement pump, a control valve connected with the output side of the inching brake valve for controlling the forward and reverse movement of the vehicle and speed thereof, the output side of which is connected with the variable displacement pump, a parking brake coupled with the output shaft of the hydraulic motor, the parking brake being normally applied by a spring and hydraulically released, a pilot operated first brake control valve connected with the parking brake, a manually operated pump connected with the first brake control valve and the inching brake valve, a pilot operated second brake control valve connected with the first brake control valve, a pilot port thereof being connected with the output side of the control valve, and a second fixed displacement pump driven by the engine and connected with the second brake control valve.

Abstract translation: 一种用于液压驱动车辆的液压回路，包括发动机，由发动机驱动的可变排量泵，与可变排量泵连接并由其驱动的液压马达，具有连接到其上的输出轴的液压马达，第一固定排量泵驱动 通过发动机与第一固定排量泵连接的微动制动阀，与该微动制动阀的输出侧连接的控制阀，用于控制车辆的前进和后退运动及其速度，其输出侧被连接 与可变排量泵一起，与液压马达的输出轴联接的驻车制动器，驻车制动器通常由弹簧施加并液压释放，与驻车制动器连接的先导操作的第一制动控制阀，连接的手动泵 与第一制动控制阀和微动制动阀，先导操作第二制动控制va 与第一制动控制阀连接，其先导端口与控制阀的输出侧连接，第二固定排量泵由发动机驱动并与第二制动控制阀连接。