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公开(公告)号：EP4411182A1
公开(公告)日：2024-08-07
申请号：EP22875835.5
申请日：2022-09-14
发明人： IMURA Tadatsugu , SUZUKI Hiroshi , FUKUDA Shogo , UCHIDA Kenta
摘要： There is provided a sliding component that allows sliding surfaces to smoothly slide against each other from a low-speed state to a high-speed state in both forward and reverse relative rotation directions. A deep groove 17 is provided that partitions a fluid-side region A1 where a fluid-side groove 13 and a fluid-side reverse groove 14 are provided and a leakage-side region A2 where leakage-side grooves 15a to 15c and leakage-side reverse grooves 16a to 16c are provided off from each other.
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公开(公告)号：EP4407193A1
公开(公告)日：2024-07-31
申请号：EP22872798.8
申请日：2022-09-14
发明人： SHIMADA Yoshiyuki
IPC分类号： F15B3/00
CPC分类号： F15B3/00
摘要： There is provided a fluid circuit capable of continuously driving pressure-increasing devices with a simple configuration. A plurality of pressure-increasing devices 10 and 10A are connected in parallel to a fluid supply device 6 that delivers a working fluid. A stroke direction of the piston 120 or 120A of each of the pressure-increasing device 10 and 10A is switched by the working fluid. A phase of the piston 120 of one pressure-increasing device 10 is different from a phase of the piston 120A of the other pressure-increasing device 10A.
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公开(公告)号：EP4400733A1
公开(公告)日：2024-07-17
申请号：EP24156603.3
申请日：2020-08-25
发明人： OKA, Masao
CPC分类号： F16C33/74 , F16J15/3412 , F16J15/3496 , F16J15/348 , F16J15/36 , F16C33/1065 , F16C17/04
摘要： Provided is a sliding component in which damage to a sliding surface can be reduced. A sliding component 1 includes a pair of seal rings which are arranged to rotate relative to each other. The seal rings 3 and 5 have sliding surfaces S1 and S2, respectively, which are facing each other. The sliding surfaces S1 and S2 are provided with: a land 9 continuously extending in a circumferential direction; inward recessed portions 11 recessed in an axial direction, extending to a radially inner side, and open to the radially inner side; and outward recessed portions 12 recessed in the axial direction, extending to a radially outer side, and open to the radially outer side.
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公开(公告)号：EP4345343A3
公开(公告)日：2024-06-19
申请号：EP24157883.0
申请日：2020-07-10
发明人： INOUE, Hiroki , NEGISHI, Yuta , ONUMA, Minori , OU, Iwa , IMURA, Tadatsugu , SUZUKI, Hiroshi
CPC分类号： F16C33/107 , F16C17/045 , F16J15/3412 , F16J15/3416
摘要： A sliding component having excellent lubricity and a high recovery rate of a sealed fluid is provided. In a mechanical seal 1 as a sliding component in which a plurality of spiral grooves 7 serving as a plurality of dynamic pressure generation grooves extending from a low pressure side L to a high pressure side H are formed on a sliding surface S1 of a stationary seal ring 4 serving as any one sliding member in the mechanical seal 1, the sliding surface S1 is provided with an annular groove 9 serving as a recessed portion extending in a circumferential direction and opened to the low pressure side L and the annular groove 9 communicates with the spiral groove 7.
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公开(公告)号：EP4345342A3
公开(公告)日：2024-06-19
申请号：EP24157861.6
申请日：2020-07-10
发明人： INOUE, Hiroki , NEGISHI, Yuta , ONUMA, Minori , OU, Iwa , IMURA, Tadatsugu , SUZUKI, Hiroshi
CPC分类号： F16C33/107 , F16C17/045 , F16J15/3412 , F16J15/3416
摘要： A sliding component having excellent lubricity and a high recovery rate of a sealed fluid is provided. In a mechanical seal 1 as a sliding component in which a plurality of spiral grooves 7 serving as a plurality of dynamic pressure generation grooves extending from a low pressure side L to a high pressure side H are formed on a sliding surface S1 of a stationary seal ring 4 serving as any one sliding member in the mechanical seal 1, the sliding surface S1 is provided with an annular groove 9 serving as a recessed portion extending in a circumferential direction and opened to the low pressure side L and the annular groove 9 communicates with the spiral groove 7.
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公开(公告)号：EP4328460A1
公开(公告)日：2024-02-28
申请号：EP22791451.2
申请日：2022-03-22
发明人： FUKUDA Shogo , IMURA Tadatsugu , OU Iwa , SUZUKI Hiroshi , UCHIDA Kenta , AIZAWA Hiroki
摘要： Provided is a sliding component capable of maintaining high lubricity over a long period of time by efficiently using a liquid supplied between sliding surfaces. In a pair of sliding components 3 and 6 disposed at a relatively rotating position to face each other when a rotating machine is driven, a sliding surface S6 of the sliding component 6 is formed on an outer peripheral edge portion 60 and includes an opening portion 11 extending in a circumferential direction and a fluid supply groove 12 communicating with the opening portion 11 and opening to a peripheral edge 60a of the sliding surface S6 on the side of the opening portion 11.
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公开(公告)号：EP4317706A1
公开(公告)日：2024-02-07
申请号：EP22780188.3
申请日：2022-03-17
IPC分类号： F15B11/028 , F15B3/00
摘要： There is provided a fluid circuit capable of continuously driving a pressure-increasing device with a simple configuration. A first switching valve 8 that switches between flow passages 70 and 80 which allow communication between a first pressure-receiving chamber 10-3 and a fluid supply device 6 side and flow passages 70 and 82 which allow communication between a second pressure-receiving chamber 10-4 and the fluid supply device 6 side, according to a change in a fluid pressure to be applied, and a second switching valve 130 that is switched to flow passages 131 and 133 which apply the fluid pressure to the first switching valve 8, are provided. The second switching valve 130 includes return device 140, and is provided to be reciprocatable between an operation position to which the second switching valve 130 is moved by a stroke of a piston 120 and a return position to which the second switching valve 130 is moved by the return device 140. The piston 120 and the second switching valve 130 are movable independently of each other.
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公开(公告)号：EP4242504A3
公开(公告)日：2023-11-15
申请号：EP23180732.2
申请日：2020-04-21
摘要： A capacity control valve in which a valve opening degree can be favorably adjusted is provided. A capacity control valve includes a valve housing (10) provided with a suction port (11) through which a suction fluid of suction pressure (Ps) passes, and a control port (12) through which a control fluid of control pressure (Pc) passes, a valve element (51) configured to be driven by a solenoid (80), a spring (85) that biases the valve element (51) in the direction opposite to the driving direction by the solenoid (80), and a CS valve (50) formed by a CS valve seat (10a) and the valve element (51) and configured for opening and closing a communication between the control port (12) and the suction port (11) by movement of the valve element (51). The control pressure (Pc) is controlled by opening and closing the CS valve (50), and the capacity control valve further includes a pressure receiving portion (51d) to which force in accordance with discharge pressure (Pd) is applied in the axial direction of the valve element (51) .
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公开(公告)号：EP4253779A3
公开(公告)日：2023-11-08
申请号：EP23191029.0
申请日：2020-01-31
摘要： Provided are a sliding component capable of sustaining inter-sliding surface lubricity for a long time and a method for manufacturing a sliding component. At least one of a pair of sliding members 10 and 20 is provided with: a group of recessed portions 22A including a plurality of recessed portions 22 and 22' formed in a sliding surface 21 of the sliding member 20; and a plurality of hollow portions 24a to 24d and 24a' to 24d' formed inside the sliding member 20 so as to be out of alignment with the recessed portions 22 and 22' in a thickness direction of the sliding member 20. The sliding member 20 is further provided with the hollow portions 24a to 24d and 24a' to 24d' disposed so as to generate at least part of a new group of recessed portions until the sliding member 20 is worn by the thickness of deepest one of the recessed portions 22 and 22'.
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公开(公告)号：EP4242503A1
公开(公告)日：2023-09-13
申请号：EP21889067.1
申请日：2021-10-25
摘要： There is provided a solenoid valve capable of obtaining a thrust of a movable iron core that is proportional to an electric current value applied to a coil. A solenoid valve 1 includes: a movable iron core 4; a solenoid molded body 31 disposed outside the movable iron core 4 in a radial direction and including a coil 34; a solenoid casing 30 that accommodates the movable iron core 4 and the solenoid molded body 31; a fixed iron core 32 disposed inside the solenoid molded body 31 in the radial direction to generate a magnetic force between the fixed iron core 32 and the movable iron core 4 when the coil 34 is energized; and a valve unit 2 that opens and closes a flow passage in accordance with a movement of the movable iron core 4. A magnetic material 8 separate from the solenoid casing 30 is disposed at an axial end portion of the coil 34 outside the solenoid casing 30.
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