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1. 发明申请

US20140196804A1 HYDRAULIC CONTROL ARRANGEMENT 有权
标题翻译：液压控制装置
公开(公告)号：US20140196804A1
公开(公告)日：2014-07-17
申请号：US14151913
申请日：2014-01-10
申请人： Sauer-Danfoss ApS
发明人： Morten Hoeck Petersen , Bendt Porskrog , Nils E. Sevelsted
IPC分类号： F04B7/02
CPC分类号： F04B7/02 , B62D5/093 , B62D5/32 , Y10T137/86002 , Y10T137/87193
摘要： A hydraulic control arrangement (1) is described having a directional valve (2), a metering pump unit which has at least two metering pumps (3, 4) which are connected hydraulically in parallel and are operable mechanically in parallel, and a shut-off valve (6) in hydraulic connection between two of the at least two metering pumps (3, 4), a pump connection (P) and a tank connection (T) which are connected to said metering pump unit by way of the directional valve (2), and two working connections (L, R) connected to the directional valve (2), a control input (8) of the shut-off valve (6) being connected to the pump connection (P) by means of a control valve. Such a control arrangement should be operated at a high hydraulic pressure and at the same time it should be made sure that the shut-off valve is actuated only when the required high pressure is available. To this end the control valve (10) is a pilot operated valve, an inlet (11) of said control valve (10) being connected to the pump connection (P), said control valve (10) connecting said input (8) and said pump connection (P) in an actuated state of said control valve (10).
摘要翻译：描述了具有方向阀（2）的液压控制装置（1），具有至少两个计量泵（3,4）的计量泵单元，所述至少两个计量泵并联连接并机械并联连接，在所述至少两个计量泵（3,4）中的两个之间液压连接的关闭阀（6），泵连接（P）和罐连接（T），所述泵连接（P）和罐连接件（T）通过所述方向阀连接到所述计量泵单元（2）和连接到方向阀（2）的两个工作连接（L，R），截止阀（6）的控制输入（8）通过一个控制阀。这样的控制装置应当在高液压下操作，同时应当确保截止阀仅在所需的高压可用时被致动。为此，控制阀（10）是先导操作阀，所述控制阀（10）的入口（11）连接到泵连接（P），所述控制阀（10）将所述输入（8）和所述泵连接件（P）处于所述控制阀（10）的致动状态。

2. 发明授权

US09261084B2 Hydraulic control arrangement 有权
标题翻译：液压控制装置
公开(公告)号：US09261084B2
公开(公告)日：2016-02-16
申请号：US14151913
申请日：2014-01-10
申请人： Sauer-Danfoss ApS
发明人： Morten Hoeck Petersen , Bendt Porskrog , Nils E. Sevelsted
IPC分类号： B62D5/32 , B62D5/093 , F04B7/02
CPC分类号： F04B7/02 , B62D5/093 , B62D5/32 , Y10T137/86002 , Y10T137/87193
摘要： A hydraulic control arrangement (1) is described having a directional valve (2), a metering pump unit which has at least two metering pumps (3, 4) which are connected hydraulically in parallel and are operable mechanically in parallel, and a shut-off valve (6) in hydraulic connection between two of the at least two metering pumps (3, 4), a pump connection (P) and a tank connection (T) which are connected to said metering pump unit by way of the directional valve (2), and two working connections (L, R) connected to the directional valve (2), a control input (8) of the shut-off valve (6) being connected to the pump connection (P) by means of a control valve. Such a control arrangement should be operated at a high hydraulic pressure and at the same time it should be made sure that the shut-off valve is actuated only when the required high pressure is available. To this end the control valve (10) is a pilot operated valve, an inlet (11) of said control valve (10) being connected to the pump connection (P), said control valve (10) connecting said input (8) and said pump connection (P) in an actuated state of said control valve (10).
摘要翻译：描述了具有方向阀（2）的液压控制装置（1），具有至少两个计量泵（3,4）的计量泵单元，所述至少两个计量泵并联连接并机械并联连接，在所述至少两个计量泵（3,4）中的两个之间液压连接的关闭阀（6），泵连接（P）和罐连接（T），所述泵连接（P）和罐连接件（T）通过所述方向阀连接到所述计量泵单元（2）和连接到方向阀（2）的两个工作连接（L，R），截止阀（6）的控制输入（8）通过一个控制阀。这样的控制装置应当在高液压下操作，同时应当确保截止阀仅在所需的高压可用时被致动。为此，控制阀（10）是先导操作阀，所述控制阀（10）的入口（11）连接到泵连接（P），所述控制阀（10）将所述输入（8）和所述泵连接件（P）处于所述控制阀（10）的致动状态。

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