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公开(公告)号：USD978038S1
公开(公告)日：2023-02-14
申请号：US29717193
申请日：2019-12-16
设计人： Bendt Porskrog , Rafal Slusarczyk
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公开(公告)号：US09744990B2
公开(公告)日：2017-08-29
申请号：US15147358
申请日：2016-05-05
摘要： A hydraulic steering system 1 is described comprising a steering unit and a priority valve, said steering unit comprising a working port arrangement having two working ports, a supply port arrangement having a high pressure port and a low pressure port, a load sensing port, a main flow path having a main bleed and a metering device and being arranged between said high pressure port and said working port arrangement, an amplification flow path having an amplification bleed and being arranged between said high pressure port and said working port arrangement, said main bleed and said amplification bleed being controlled together by means of a steering handle and being closed in neutral position of said steering handle, wherein said priority valve comprises a priority outlet connected to said high pressure port of said steering unit, a valve element moveable in a priority direction to connect an inlet of said priority valve to said priority outlet, and a load sensing connection connected to said load sensing port of said steering unit, said priority outlet being connected to said load sensing connection via a priority valve bleed, a pressure at a point downstream said priority bleed acting on said valve element in said priority direction, wherein said load sensing port is connected to said low pressure port via a drain bleed being open in neutral position of said steering handle and closing upon actuation of said steering handle out of said neutral position.
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公开(公告)号：US20160332662A1
公开(公告)日：2016-11-17
申请号：US15147358
申请日：2016-05-05
摘要： A hydraulic steering system 1 is described comprising a steering unit and a priority valve, said steering unit comprising a working port arrangement having two working ports, a supply port arrangement having a high pressure port and a low pressure port, a load sensing port, a main flow path having a main bleed and a metering device and being arranged between said high pressure port and said working port arrangement, an amplification flow path having an amplification bleed and being arranged between said high pressure port and said working port arrangement, said main bleed and said amplification bleed being controlled together by means of a steering handle and being closed in neutral position of said steering handle, wherein said priority valve comprises a priority outlet connected to said high pressure port of said steering unit, a valve element moveable in a priority direction to connect an inlet of said priority valve to said priority outlet, and a load sensing connection connected to said load sensing port of said steering unit, said priority outlet being connected to said load sensing connection via a priority valve bleed, a pressure at a point downstream said priority bleed acting on said valve element in said priority direction, wherein said load sensing port is connected to said low pressure port via a drain bleed being open in neutral position of said steering handle and closing upon actuation of said steering handle out of said neutral position.
摘要翻译： 描述了一种液压转向系统1，其包括转向单元和优先阀，所述转向单元包括具有两个工作端口的工作端口装置，具有高压端口和低压端口的供应端口装置，负载感测端口， 主流路具有主泄漏和计量装置，并且布置在所述高压端口和所述工作端口装置之间，放大流路具有放大渗流并且布置在所述高压端口和所述工作端口装置之间，所述主流出 并且所述放大泄漏通过转向手柄一起控制并且在所述转向手柄的中立位置处被关闭，其中所述优先阀包括连接到所述转向单元的所述高压端口的优先出口，优先移动的阀元件 将所述优先阀的入口连接到所述优先出口的方向，以及连接t的负载感测连接 o所述转向单元的负载感测端口，所述优先出口经由优先阀泄漏连接到所述负载感测连接，在所述优先排放点下游的点处的压力在所述优先方向上作用在所述阀元件上，其中所述负载感测端口 经由在所述转向手柄的中立位置打开的排泄口连接到所述低压端口，并且在所述转向手柄致动所述中立位置时闭合。
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公开(公告)号：US20160332663A1
公开(公告)日：2016-11-17
申请号：US15147516
申请日：2016-05-05
摘要： A hydraulic steering system (1) is described comprising a steering unit (3) and a pressure source (4), said steering unit (3) comprising a working port arrangement (L, R) having two working ports, a supply port arrangement having a high pressure port (P) and a low pressure port (5), a main flow path (7) having a main bleed (A1) and a metering device (8) and being arranged between said high pressure port (P) and said working port arrangement (L, R), an amplification flow path (9) having an amplification bleed (Au) and being arranged between said high pressure port (P) and said working port arrangement (L, R), said main bleed (A1) and said amplification bleed (Au) being controlled together by means of a steering handle (6) and being closed in neutral position of said steering handle, and said pressure source (4) having a variable displacement.
摘要翻译： 描述了一种液压转向系统（1），其包括转向单元（3）和压力源（4），所述转向单元（3）包括具有两个工作端口的工作端口装置（L，R） 高压口（P）和低压口（5），主流道（A1）和计量装置（8）的主流路（7），并设置在所述高压口（P）和所述 工作端口布置（L，R），具有放大放电（Au）并布置在所述高压端口（P）和所述工作端口装置（L，R）之间的放大流路（9） ），并且所述放大泄漏（Au）通过转向手柄（6）一起控制并且在所述转向手柄的中立位置处被关闭，并且所述压力源（4）具有可变位移。
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公开(公告)号：US20230264736A1
公开(公告)日：2023-08-24
申请号：US18062037
申请日：2022-12-06
发明人： Bendt Porskrog
摘要： A hydraulic steering unit (2) includes a steering unit (2) including a supply port arrangement having a supply port (P) and a return port (T), a working port arrangement having two working ports (LR), a steering valve arrangement having two valve elements (32, 33) arranged in a housing (30, 38, 39) and being moveable in relation to each other to change characteristics of orifices, and a measuring motor (9) arranged in a line between the steering valve arrangement and one of the working ports (LR). A hydraulic steering unit should create similar end stop sealings in both steering directions. To this end, backpressure means are provided generating a backpressure on the measuring motor (9), wherein the backpressure means are controlled by the valve element (32, 33), and friction means (43, 43′) are provided between one of the valve elements (33) and the housing (30, 38, 39) or a rotating part of the measuring motor (9) and the housing (30, 38, 39), respectively.
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公开(公告)号：US10174854B2
公开(公告)日：2019-01-08
申请号：US15349192
申请日：2016-11-11
发明人： Per Bonde , Mogens Frederiksen , Niels Bjarne Hansen , Nils E. Sevelsted , Bendt Porskrog , Helle Bonde Rasmussen
摘要： A hydraulic overpressure valve (1) is provided comprising a valve housing (2), a valve seat (3) located in said valve housing and having a seat center and a seat center axis (4), a cone element (5) movable relatively to said valve seat (3), said cone element (5) having a cone (6) protruding at least partly into said valve seat (3) and having a cone center axis (4), and force generating means acting on said cone element (5) in a direction towards said valve seat (3). Such a hydraulic overpressure valve should be operated with low noise. To this end said cone (6) is movable along a path of movement in which said cone center axis is kept outside said seat center axis (4).
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公开(公告)号：US09926003B2
公开(公告)日：2018-03-27
申请号：US15147078
申请日：2016-05-05
摘要： A hydraulic steering unit (3) is disclosed comprising a working port arrangement (L, R) having two working ports (L, R), a supply port arrangement having a high pressure port (P) and a low pressure port (T), a main flow path (7) having a main bleed (A1) and a metering device (8) and being arranged between said high pressure port (P) and said working port arrangement (L, R), an amplification flow path (9) having an amplification bleed (Au) and being arranged between said high pressure port (P) and said working port arrangement (L, R), said main bleed (A1) and said amplification bleed (Au) being controlled together by means of a steering handle (6) and being closed in neutral position of said steering handle (6), and a drain bleed (Ad) which is open in neutral position of said steering handle (6), said drain bleed (Ad) connecting a point (11) upstream said main bleed (A1) and said amplification bleed (Au) to said low pressure port (T).
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公开(公告)号：US20170138492A1
公开(公告)日：2017-05-18
申请号：US15349192
申请日：2016-11-11
发明人： Per Bonde , Mogens Frederiksen , Niels Bjarne Hansen , Nils E. Sevelsted , Bendt Porskrog , Helle Bonde Rasmussen
CPC分类号： F16K17/0446 , F16K15/026 , F16K17/0433 , F16K47/04
摘要： A hydraulic overpressure valve (1) is provided comprising a valve housing (2), a valve seat (3) located in said valve housing and having a seat center and a seat center axis (4), a cone element (5) movable relatively to said valve seat (3), said cone element (5) having a cone (6) protruding at least partly into said valve seat (3) and having a cone center axis (4), and force generating means acting on said cone element (5) in a direction towards said valve seat (3). Such a hydraulic overpressure valve should be operated with low noise. To this end said cone (6) is movable along a path of movement in which said cone center axis is kept outside said seat center axis (4).
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公开(公告)号：US20160332661A1
公开(公告)日：2016-11-17
申请号：US15147078
申请日：2016-05-05
摘要： A hydraulic steering unit (3) is disclosed comprising a working port arrangement (L, R) having two working ports (L, R), a supply port arrangement having a high pressure port (P) and a low pressure port (T), a main flow path (7) having a main bleed (A1) and a metering device (8) and being arranged between said high pressure port (P) and said working port arrangement (L, R), an amplification flow path (9) having an amplification bleed (Au) and being arranged between said high pressure port (P) and said working port arrangement (L, R), said main bleed (A1) and said amplification bleed (Au) being controlled together by means of a steering handle (6) and being closed in neutral position of said steering handle (6), and a drain bleed (Ad) which is open in neutral position of said steering handle (6), said drain bleed (Ad) connecting a point (12) upstream said main bleed (A1) and said amplification bleed (Au) to said low pressure port (T).
摘要翻译： 公开了一种液压转向装置（3），其包括具有两个工作端口（L，R）的工作端口装置（L，R），具有高压端口（P）和低压端口（T）的供应端口装置， 主流路（7），具有主泄漏（A1）和计量装置（8），并且布置在所述高压端口（P）和所述工作端口装置（L，R）之间，放大流路（9） 具有放大泄漏（Au）并且布置在所述高压端口（P）和所述工作端口装置（L，R）之间，所述主泄漏（A1）和所述放大泄漏（Au）通过转向 手柄（6）并且在所述转向手柄（6）的中间位置处于关闭状态，以及在所述转向手柄（6）的中立位置处打开的排泄口（Ad），所述排放流出物（Ad）连接点 ）上游，所述主要泄漏（A1）和所述放大渗出（Au）到所述低压端口（T）。
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公开(公告)号：US09725113B2
公开(公告)日：2017-08-08
申请号：US15147516
申请日：2016-05-05
摘要： A hydraulic steering system (1) is described comprising a steering unit (3) and a pressure source (4), said steering unit (3) comprising a working port arrangement (L, R) having two working ports, a supply port arrangement having a high pressure port (P) and a low pressure port (5), a main flow path (7) having a main bleed (A1) and a metering device (8) and being arranged between said high pressure port (P) and said working port arrangement (L, R), an amplification flow path (9) having an amplification bleed (Au) and being arranged between said high pressure port (P) and said working port arrangement (L, R), said main bleed (A1) and said amplification bleed (Au) being controlled together by means of a steering handle (6) and being closed in neutral position of said steering handle, and said pressure source (4) having a variable displacement.
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