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公开(公告)号：US20180333799A1
公开(公告)日：2018-11-22
申请号：US16040441
申请日：2018-07-19
发明人： Mark Nicewonger
IPC分类号： B23K11/30 , B23K11/11 , F04B53/14 , F04B43/02 , F16K31/16 , F16K7/12 , F16K23/00 , F15B3/00 , F17D3/01 , F16K37/00
CPC分类号： B23K11/3054 , B23K11/115 , B23K11/3018 , B23K11/3072 , F04B43/02 , F04B53/14 , F15B3/00 , F16K7/12 , F16K23/00 , F16K31/16 , F16K37/005 , F17D3/01
摘要： A first electrode coolant path is configured to cool a first welding electrode by liquid coolant flowing from a supply path through the first electrode coolant path to a return path. A second electrode coolant path is configured to cool a second welding electrode by liquid coolant flowing from the supply path through the second electrode coolant path to the return path. Three or more valves are configured to stop or reduce liquid coolant flow through the first or second electrode coolant path and configured to stop or reduce liquid coolant backflow from the return path when the first or second welding electrode is at least partially detached. At least one valve is coupled in the first or second electrode coolant path. A drawback apparatus generates a suction force to draw liquid coolant away from a gap formed when the first or second welding electrode is at least partially detached.
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公开(公告)号：US20180266445A1
公开(公告)日：2018-09-20
申请号：US15921973
申请日：2018-03-15
发明人： Shigehiro ARAI
CPC分类号： F15B3/00 , B21D22/205 , B21D22/22 , B21D24/005 , B21D28/005 , B30B1/38 , B30B15/165
摘要： A pneumatic chamber 20 is configured to include a first pneumatic chamber 21 pressurizing a first piston 11 and a second pneumatic chamber 22 pressurizing a second piston 12. The first pneumatic chamber 21 and the second pneumatic chamber 22 communicate with each other through a communication hole 87 formed via the inside of a retaining bolt 17. The second pneumatic chamber 22 is formed in a hydraulic pressure generating unit 55 moving in a thrust direction in a cylinder 2 and is separable from the first pneumatic chamber 21. In addition, the communication hole 87 is also separated into a communication hole 87a and a communication hole 87b with the corresponding separation, a rod portion 50 of the first piston 11 is also separated into a rod portion 50a and a rod portion 50b, and the communication hole 87b and the rod portion 50b are formed to be movable along with the hydraulic pressure generating unit 55 in the thrust direction.
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3.发明授权公开(公告)号：US10072680B2
公开(公告)日：2018-09-11
申请号：US15147094
申请日：2016-05-05
IPC分类号： F15B11/08 , B66C13/20 , F15B21/14 , E02F9/22 , B66C13/12 , F15B1/04 , F15B13/04 , F15B1/027 , F15B3/00
CPC分类号： F15B11/08 , B66C13/12 , B66C13/20 , E02F9/2217 , E02F9/2271 , F15B1/027 , F15B1/04 , F15B3/00 , F15B13/0401 , F15B21/14 , F15B2211/212 , F15B2211/214 , F15B2211/3058 , F15B2211/7053 , F15B2211/761 , F15B2211/88
摘要： The invention relates to an apparatus for the energy-optimized hydraulic control of at least one double-action working cylinder of a work machine comprising a hydraulic pressure transducer which is hydraulically connected to a first piston surface of the working cylinder, to a second piston surface of the working cylinder and to at least one pressure accumulator, wherein the pressure transducer is configured such that the hydraulic energy of a high-pressure volume flow conveyed by the first piston surface to the pressure transducer can be stored completely or at least partially by the at least one connected pressure accumulator and such that the cylinder chamber of the second piston surface of the working cylinder can be filled with a low-pressure volume flow by the pressure transducer.
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公开(公告)号：US20180023597A1
公开(公告)日：2018-01-25
申请号：US15549464
申请日：2016-02-09
发明人： Norbert ERHARD , Peter MAURER
CPC分类号： F15B3/00 , B22D17/203 , B22D17/2069 , B22D17/32
摘要： A pressure intensifier device for increasing pressure in a pressurized fluid chamber of a piston/cylinder unit and a casting unit provided therewith for a diecasting machine, and also an associated operating method are provided. The pressure intensifier device has a pressure intensifier cylinder and a pressure intensifier piston, which is guided in an axially movable manner in the cylinder, wherein the pressure intensifier cylinder has an outlet region, an inlet region upstream of the outlet region and a piston guiding chamber, and the pressure intensifier piston has a piston part, which is guided in the piston guiding chamber, and a piston rod, which extends from the piston part to the inlet region, in a maximally retracted release position releases a fluid connection between the inlet region and the outlet region and, in a maximally advanced blocking position, blocks this connection with a free end portion, with which it extends into the outlet region. Over a portion that can be passed through by the free end portion of the piston rod during movement from the release position into the blocking position, the outlet region has a free passage cross section for the free piston rod end portion that is at least equal in size to a rod cross section of the free piston rod end portion. Advantageously, a pressure intensifier inlet valve can be controlled independently of a pressure in the pressurized fluid chamber of the piston/cylinder unit.
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公开(公告)号：US09856891B2
公开(公告)日：2018-01-02
申请号：US14709036
申请日：2015-05-11
申请人： Vianney Rabhi
发明人： Vianney Rabhi
摘要： The travel end expansion valve (1) for a piston type pressure converter (2) whose master cylinder (3) and slave cylinder (4) define a master chamber (9) and a slave chamber (10), respectively, includes an expansion master cylinder (12) which communicates with the slave chamber (10) and in which there can move an expansion main master piston (14) which is mechanically connected by a lever type transmission (11) with progressive effect to an expansion slave pump piston (15) which can move in an expansion slave cylinder (13), the transmission (11) being provided in such a manner that, when the expansion main master piston (14) is at the top dead center, the expansion slave pump piston (15) is at the bottom dead center, and vice versa, while an expansion release actuator (30) can cause the transmission (11) to move.
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公开(公告)号：US09829139B2
公开(公告)日：2017-11-28
申请号：US14626607
申请日：2015-02-19
申请人： Robert Bosch GmbH
发明人： Paul C. Stavrou
IPC分类号： F16L55/033 , F04B11/00 , F15B3/00 , F15B21/12 , F16L55/05
CPC分类号： F16L55/033 , F04B11/00 , F04B11/0058 , F15B3/00 , F15B21/12 , F16L55/0333 , F16L55/05
摘要： A method is provided for actively compensating for pressure changes of a working fluid within a conduit. A first cavity is provided in fluid communication with the conduit. A second cavity is in fluid communication with a control fluid. A plunger is in communication with both the first cavity and the second cavity and is movable in response to pressure changes of the working fluid in the conduit. The plunger is re-centered. Re-centering the plunger includes the following steps. Position data representative of movement of the plunger is collected. The position data is analyzed with a control unit to determine an average position of the plunger which is offset relative to a center position. The average position of the plunger is compared, with a control unit, to the center position. A signal is relayed from the control unit to a control valve to urge the plunger toward the center position.
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公开(公告)号：US09739121B2
公开(公告)日：2017-08-22
申请号：US14867066
申请日：2015-09-28
发明人： Neil Thomson
IPC分类号： E21B43/10 , E21B23/04 , F15B3/00 , E21B33/124
CPC分类号： E21B43/105 , E21B23/04 , E21B33/124 , E21B43/108 , F15B3/00
摘要： A pressure intensifier for morphing tubulars downhole. An elongate mandrel defines an inner bore, being co-axially located within an elongate hollow outer cylindrical body to form a co-axial annular bore therebetween. Pistons are mounted upon the mandrel with each piston having an annular fluid facing face extending across the annular bore, with fluid communication between the inner bore and the annular bore to act upon each face. Stops are located on an inner surface of the outer cylindrical body to limit travel of each piston. A morph fluid is located in the annular bore between an opposing face of a first piston and a first stop, with the first stop having delivery ports to deliver the morph fluid at a greater pressure than the pressure of fluid delivered through the inner bore.
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8.发明申请APPARATUS FOR THE ENERGY-OPTIMIZED HYDRAULIC CONTROL OF AT LEAST ONE DOUBLE-ACTION WORKING CYLINDER 审中-公开能够优化液压控制的装置，用于至少一个双作用工作缸公开(公告)号：US20170023025A1
公开(公告)日：2017-01-26
申请号：US15147094
申请日：2016-05-05
CPC分类号： F15B11/08 , B66C13/12 , B66C13/20 , E02F9/2217 , E02F9/2271 , F15B1/027 , F15B1/04 , F15B3/00 , F15B13/0401 , F15B21/14 , F15B2211/212 , F15B2211/214 , F15B2211/3058 , F15B2211/7053 , F15B2211/761 , F15B2211/88
摘要： The invention relates to an apparatus for the energy-optimized hydraulic control of at least one double-action working cylinder of a work machine comprising a hydraulic pressure transducer which is hydraulically connected to a first piston surface of the working cylinder, to a second piston surface of the working cylinder and to at least one pressure accumulator, wherein the pressure transducer is configured such that the hydraulic energy of a high-pressure volume flow conveyed by the first piston surface to the pressure transducer can be stored completely or at least partially by the at least one connected pressure accumulator and such that the cylinder chamber of the second piston surface of the working cylinder can be filled with a low-pressure volume flow by the pressure transducer.
摘要翻译： 本发明涉及一种用于工作机械的至少一个双作用工作缸的能量优化液压控制的装置，其包括液压连接到工作缸的第一活塞表面的液压变压器到第二活塞表面 工作缸和至少一个压力蓄能器，其中压力传感器被构造成使得由第一活塞表面传送到压力传感器的高压体积流的液压能量可以被完全地或至少部分地由 至少一个连接的压力蓄能器，并且使得工作缸的第二活塞表面的气缸室可以被压力传感器填充低压体积流量。
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公开(公告)号：US09435354B2
公开(公告)日：2016-09-06
申请号：US13587722
申请日：2012-08-16
申请人： Daniela Lehner , Andreas Dreiss , Andrew Schevets
发明人： Daniela Lehner , Andreas Dreiss , Andrew Schevets
CPC分类号： F15B3/00 , B01D61/06 , B01D61/10 , C02F1/441 , C02F2303/10 , F04F13/00 , Y10T137/0396 , Y10T137/86638
摘要： Exchanger devices include a plurality of fixed exchange ducts and a rotating valve assembly for directing flow to and from the plurality of exchange ducts. Methods of exchanging pressure between fluid streams may include directing fluids through an exchange device and pressurizing a fluid in the plurality of exchange ducts of the exchanger device.
摘要翻译： 交换器装置包括多个固定的交换管道和用于引导流入和流出多个交换管道的旋转阀组件。 在流体流之间交换压力的方法可以包括引导流体通过交换装置并加压交换装置的多个交换管道中的流体。
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10.发明申请公开(公告)号：US20160245267A1
公开(公告)日：2016-08-25
申请号：US14626607
申请日：2015-02-19
申请人： Robert Bosch GmbH
发明人： Paul C. Stavrou
CPC分类号： F16L55/033 , F04B11/00 , F04B11/0058 , F15B3/00 , F15B21/12 , F16L55/0333 , F16L55/05
摘要： A method is provided for actively compensating for pressure changes of a working fluid within a conduit. A first cavity is provided in fluid communication with the conduit. A second cavity is in fluid communication with a control fluid. A plunger is in communication with both the first cavity and the second cavity and is movable in response to pressure changes of the working fluid in the conduit. The plunger is re-centered. Re-centering the plunger includes the following steps. Position data representative of movement of the plunger is collected. The position data is analyzed with a control unit to determine an average position of the plunger which is offset relative to a center position. The average position of the plunger is compared, with a control unit, to the center position. A signal is relayed from the control unit to a control valve to urge the plunger toward the center position.
摘要翻译： 提供了一种用于主动地补偿管道内的工作流体的压力变化的方法。 提供与导管流体连通的第一腔。 第二腔与控制流体流体连通。 柱塞与第一腔体和第二腔室连通，并且可响应于管道中的工作流体的压力变化而运动。 柱塞重新居中。 柱塞重新定心包括以下步骤。 收集代表柱塞运动的位置数据。 用控制单元分析位置数据，以确定相对于中心位置偏移的柱塞的平均位置。 将柱塞的平均位置与控制单元相比较到中心位置。 信号从控制单元传递到控制阀，以将柱塞推向中心位置。
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