公开(公告)号：EP2433291A4

公开(公告)日：2014-05-21

申请号：EP10778018

申请日：2010-05-18

申请人： NORDHYDRAULIC AB ,  HAKARYD AB

发明人： JANSON GUNNAR

IPC分类号： H01H13/06 ,  H01H9/04

CPC分类号： H01H9/04 ,  H01H9/0214 ,  H01H13/06 ,  H01H2009/048 ,  H01H2223/003

公开(公告)号：EP2446151A4

公开(公告)日：2014-03-12

申请号：EP10792421

申请日：2010-06-23

申请人： NORDHYDRAULIC AB

发明人： ANDERSSON BO ,  LUNDGREN BERTIL

IPC分类号： F15B13/04 ,  E02F9/22 ,  F15B11/16

CPC分类号： E02F9/2203 ,  B66C13/18 ,  B66F9/22 ,  E02F9/2217 ,  E02F9/2267 ,  F15B11/165 ,  F15B13/0416 ,  F15B2211/20538 ,  F15B2211/253 ,  F15B2211/50536 ,  F15B2211/528 ,  F15B2211/57 ,  F15B2211/5753 ,  F15B2211/6051 ,  F15B2211/653 ,  Y10T137/0379 ,  Y10T137/7837

摘要： A method and a device for controlling a load sensing hydraulic system, having a bypass valve (F), which is controlled by a pump pressure (P) and which when the hydraulic system is in operation diverts a pump flow of hydraulic fluid to a tank (E). The bypass valve (F) is pre-stressed towards a closed position and is put on load by the pump pressure (P) towards an open position against the action of the pre-stress. When the hydraulic system operates in a idling operation a first pre-stress element (I) limits the pre-stress to a first pressure and upon activation of the hydraulic system, a pressure regulator (10) increases the pre-stress to a second, substantially higher pressure by applying a hydraulic, constant second pre-stress force, that is added to the first pre-stress force and is substantially greater than this.

摘要翻译： 一种用于控制负载感测液压系统的方法和装置，具有由泵压力（P）控制的旁通阀（F），并且当液压系统运行时，将液压流体的泵流转向罐 （E）。 旁通阀（F）被预压到关闭位置，并且通过泵压力（P）朝向打开位置施加负载以抵抗预应力的作用。 当液压系统在空转操作时，第一预应力元件（I）将预应力限制到第一压力，并且在启动液压系统时，压力调节器（10）将预应力增加到第二压力， 通过施加液压的恒定的第二预应力而施加显着更高的压力，其被添加到第一预应力并且基本上大于此。

公开(公告)号：EP2433022A1

公开(公告)日：2012-03-28

申请号：EP10778019.9

申请日：2010-05-18

申请人： Nordhydraulic AB ,  Hakaryd AB

发明人： JANSSON, Gunnar ,  ZETTERBLAD, Stefan

IPC分类号： F16B21/07

CPC分类号： F16B21/073

摘要： Snap lock comprising two lock parts (1, 2), where a first lock part (1) has a slotted sleeve (4) provided with a constriction (16) which when being pressed out is mountable on a second lock part (2) over a front end section (8) thereof, wherein said sleeve (4) firstly is put in a pressed out position before the sleeve (4) at reached locking position is kept blocked against being taken off by cooperation between constriction and a thickening (10) arranged on the front end section (8) of the second lock part (2). A friction means (21) is arranged in the area between contact surfaces of the second lock part (2) and the sleeve (4) so that the contact pressure on the friction means (21) is varying when switching the constriction between the locking position and the pressed out position, wherein the friction means when affected by the snap effect is brought to elastic deformation between the contact surfaces in the locking position to prevent turning.

公开(公告)号：EP2243964A2

公开(公告)日：2010-10-27

申请号：EP10158618.8

申请日：2010-03-31

申请人： Nordhydraulic AB

发明人： Hägglund, Per ,  Marklund, Martin

IPC分类号： F15B13/04

摘要： The invention relates to a control valve (1) for maneuvering a hydraulic consumer, (11) such as a single acting telescopic cylinder, the valve including a valve housing (2) with an inlet port (12) connected to a pump for delivering a hydraulic flow, a motor port (14) to which said consumer (11) is connected, an outlet port (13) connected to a tank and a maneuverable slide (3) with a first and a second end (3a, 3b), respectively, which is provided with port tracks (7,20,21) and which is arranged in the valve housing, wherein the slide can control the hydraulic flow between the inlet port and the consumer and between the consumer and the tank, the valve housing including a first flow path (I) over first end of the slide and a second flow path (II) over the second end of the slide, and wherein the return flow from the consumer to the tank through the valve housing may be conveyed via said flow paths. In order to provide improved control performance the control valve includes a regulating device (30) that is connected to the slide (3) and from a position with maximal velocity upon lowering of a load where the return flow from the consumer (11) is conveyed via said both flow paths (I, II) over the first end (3a) and second end (3b) of the slide, is arranged to provide a limited lowering velocity through adjustment of the slide in the axial direction and conveying of the flow over the first flow path (I) on the first end (3a) of the slide only.

摘要翻译： 本发明涉及一种用于操纵液压消耗器的控制阀（1）（11），例如单作用伸缩气缸，该阀包括具有连接到泵的输入端口（12）的阀壳体（2），用于输送 液压流动，所述消耗器（11）连接到的电动机端口（14），连接到罐的出口端口（13）和分别具有第一和第二端（3a，3b）的可机动滑动件（3） ，其设置有端口轨道（7,20,21）并且布置在阀壳体中，其中滑块可以控制入口端口和消费者之间以及消费者和罐之间的液压流动，阀壳体包括 在滑块的第一端上方的第一流动路径（I）和在滑块的第二端上的第二流动路径（II），并且其中可以经由所述流体从消耗器返回到罐的通过阀壳体的返回流 路径。 为了提供改进的控制性能，控制阀包括调节装置（30），该调节装置（30）连接到滑动件（3），并且在来自消耗器（11）的返回流被传送的负载降低时，从最大速度的位置 通过所述滑动件的第一端（3a）和第二端（3b）上的所述两个流动路径（I，II）被布置成通过在轴向方向上调节滑动件而提供有限的降低速度并且输送流过 在滑块的第一端（3a）上的第一流路（I）。

公开(公告)号：EP2446152B1

公开(公告)日：2017-08-30

申请号：EP10792420.1

申请日：2010-06-23

申请人： Nordhydraulic AB

发明人： LUNDGREN, Bertil

IPC分类号： F15B13/06 ,  E02F9/22 ,  F15B13/08 ,  F16L41/12 ,  B62D49/00

CPC分类号： E02F9/2267 ,  E02F3/96 ,  F15B13/0825 ,  F15B13/0871 ,  F15B13/0896 ,  F16L41/12 ,  Y10T137/85938 ,  Y10T137/85978 ,  Y10T137/86574

公开(公告)号：EP2433339B1

公开(公告)日：2014-08-06

申请号：EP10778020.7

申请日：2010-05-18

申请人： Nordhydraulic AB ,  Hakaryd AB

发明人： JANSON, Gunnar

IPC分类号： H01R13/52 ,  H01B7/282 ,  H01R13/405 ,  H01R43/24

CPC分类号： H01R13/405 ,  H01B7/2825 ,  H01R13/52 ,  H01R43/24

公开(公告)号：EP2446150A1

公开(公告)日：2012-05-02

申请号：EP10792419.3

申请日：2010-06-23

申请人： Nordhydraulic AB

发明人： ANDERSSON, Bo ,  LUNDGREN, Bertil

IPC分类号： F15B13/04 ,  E02F9/22

CPC分类号： E02F9/2267 ,  E02F9/2232 ,  F15B11/05 ,  F15B11/055 ,  F15B13/0417 ,  F15B2211/20553 ,  F15B2211/30505 ,  F15B2211/30535 ,  F15B2211/5756 ,  F15B2211/6051 ,  F15B2211/6052 ,  F15B2211/654

摘要： The invention relates to a hydraulic valve device (1) including a high pressure connection (P′) and a low pressure connection (T′); at least one motor port connection (A′) that is connectable to a motor port (A) on a hydraulic motor (M), preferably a hydraulic cylinder; a flow control valve (F), which is arranged between the high pressure connection (P′) and the motor port connection (A′) and which includes a flow opening (18) that is adjustable between a fully closed position and a fully open position; and a pressure regulator (R) that is arranged between the high pressure connection (P′) and the flow regulating valve (F), wherein a regulator pressure (PR) that acts at a first connection point (3) between the pressure regulator (R) and the flow regulating valve (F) acts on the pressure regulator (R) via a first control conduit (4) to close the same. A second control conduit (5) including a first restrictor (6), is arranged to convey a load pressure (PL) that acts at the motor port connection (A′) from a second connection point (7) positioned between the flow regulating valve (F) and the motor port connection (A′) via the first restrictor (6) to a third connection point (8) at which a first control pressure (Pc) acts and which third connection point (8) is connected to the pressure regulator (R) to act on the same in the opening direction by means of said first control pressure (Pc), wherein the third connection point (8) is connected to the low pressure connection (T), via an adjustable second restrictor (9).

摘要翻译： 本发明涉及包括高压接头（P'）和低压接头（T'）的液压阀装置（1） 至少一个可连接到液压马达（M）上的马达端口（A），优选为液压缸的马达端口连接（A'）; （F'），该流量控制阀布置在高压接头（P'）和马达端口接头（A'）之间并且包括可在全闭位置和全开位置之间调节的流动开口（18） 位置; 和布置在所述高压接头（P'）和所述流量调节阀（F）之间的压力调节器（R），其中调节器压力（PR）作用在所述压力调节器（P） R）并且流量调节阀（F）经由第一控制导管（4）作用在压力调节器（R）上以关闭该压力调节阀。 包括第一限流器（6）的第二控制导管（5）布置成从位于流量调节阀（6）之间的第二连接点（7）传送作用在马达端口连接（A'）处的负载压力（PL） 通过第一限流器（6）将第一连接点（F）和马达口连接（A'）连接到第三连接点（8），在第三连接点处第一控制压力（Pc）起作用，并且第三连接点（8） 调节器（R）通过所述第一控制压力（Pc）沿打开方向作用于所述第一控制压力（Pc），其中所述第三连接点（8）经由可调节的第二限流器（9） ）。

公开(公告)号：EP2433339A1

公开(公告)日：2012-03-28

申请号：EP10778020.7

申请日：2010-05-18

申请人： Nordhydraulic AB ,  Hakaryd AB

发明人： JANSON, Gunnar

IPC分类号： H01R13/52 ,  H01B7/282

CPC分类号： H01R13/405 ,  H01B7/2825 ,  H01R13/52 ,  H01R43/24

摘要： The present invention relates to an electrical device (5) including an electric cable (1) with an electrically conducting core (3) enclosed by an insulating sheath (2). A moulded casting (4) is arranged around the electric cable (1) in a section along the electric cable of a length (LI) and seals against the insulating sheath (2) in at least a first outer section of a length (L3) along the electric cable (1). The moulded casting (4) or the insulating sheath (2) penetrates and seals against the electrically conducting core (3) in a inner section of a length (L2) along the electric cable (1), wherein the electrical device (5) is damp proof along the electric cable (1). The invention also relates to a method of producing such an electrical device.

公开(公告)号：EP2304112A1

公开(公告)日：2011-04-06

申请号：EP09794724.6

申请日：2009-06-22

申请人： Nordhydraulic AB

发明人： LUNDGREN, Bertil

IPC分类号： E02F9/22 ,  F16B3/00

CPC分类号： E02F9/2267 ,  E02F3/3654 ,  E02F3/627 ,  E02F9/2275 ,  Y10T137/6851 ,  Y10T137/6892

摘要： The present invention provides a valve fastening means (1) for attaching a hydraulic valve (2) to a tractor (13). The valve fastening means (1) comprises a tractor part (Ia) adapted to be attached on the tractor and a valve part (Ib adapted for direct assembly of the valve (2), wherein the valve (2) comprises at least two screw holes (10,11,12), each adapted to receive a screw (3,4,5). The valve part (Ib) of the valve fastening means (1) comprises at least two slits (6,7,8), of which at least a first slit (6,8) comprises an opening (6a,8a) adapted to let the head of the screw pass, and all slits comprises a groove (6b, 7, 8b, 8c) that is sufficiently narrow to prevent the head of the screw (3,4,5) from passing but sufficiently wide to allow the thread of the screw (3,4,5) to pass.

公开(公告)号：EP2265773A1

公开(公告)日：2010-12-29

申请号：EP08825859.5

申请日：2008-05-12

申请人： Nordhydraulic AB

发明人： ANDERSSON, Bo

IPC分类号： E02F9/22 ,  F15B13/01 ,  F15B11/00

CPC分类号： E02F9/2203 ,  E02F9/2217 ,  F15B11/003 ,  F15B11/024 ,  F15B21/14 ,  F15B2211/6052 ,  F15B2211/88

摘要： The invention relates to Hydraulic valve device comprising a first engine port (L) and a second engine port (N) to a double acting hydraulic motor (D), in particular a double acting hydraulic cylinder, a tank (T), and a pump (I), a hand valve (H), which is arranged such that it connects the engine ports (L, N) to the tank (T) and the pump (I), and which hand valve (H) has two open positions, wherein the pump (I) in the first open position via a line (F) is connected to the first engine port (L) and the tank (T) via a line (G) is connected to the second engine port (N), and wherein the pump (I) in the second open position via the line (G) is connected to the second engine port (N) and the tank (T) via the line (F) is connected to the first engine port (L), and a first nonreturn valve (IA, 8), which is arranged between the pump (I) and the second engine port (N) and opens towards the second engine port (N). Further, a piston (2), which by means of the load pressure in the first engine port (L) via a line (E) governs the first nonreturn valve (IA, 8), such that it is kept closed as long as the pump pressure does not exceed said load pres¬ sure, and a second nonreturn valve (3), which is arranged such that it, as long as the hand valve (H) is in its first open position, connects the first engine port (L) to the second engine port (N) and opens in direction towards the second engine port (N).

摘要翻译： 液压阀装置技术领域本发明涉及液压阀装置，其包括第一发动机端口（L）和第二发动机端口（N），该双向作用液压马达（D）尤其是双作用液压缸，油箱（T）和泵 （I），一个手动阀（H），其布置成使得它将发动机端口（L，N）连接到箱（T）和泵（I），并且该手动阀（H）具有两个打开位置 ，其中经由管线（F）在第一打开位置的泵（I）连接到第一发动机端口（L），并且经由管线（G）的箱（T）连接到第二发动机端口（N） ，并且其中经由管线（G）处于第二打开位置的泵（I）连接至第二发动机端口（N），并且经由管线（F）的箱（T）连接至第一发动机端口（L ）以及布置在泵（I）和第二发动机端口（N）之间并且朝向第二发动机端口（N）打开的第一止回阀（IA，8）。 此外，借助于第一发动机端口（L）中的负载压力经由管线（E）控制第一止回阀（IA，8）的活塞（2），使得其保持关闭，只要 泵压力不超过所述负载压力;以及第二止回阀（3），其布置成使得只要手动阀（H）处于其第一打开位置，所述第二止回阀（3）将第一发动机端口（L ）到第二发动机端口（N）并且朝向第二发动机端口（N）的方向打开。