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公开(公告)号：EP4390189A1
公开(公告)日：2024-06-26
申请号：EP22869922.9
申请日：2022-09-12
申请人： IHI Corporation
发明人： MASUDA, Seiei
摘要： A spool valve (1) includes: a sleeve (10) extending in an axial direction thereof, including an inlet port (11) and an outlet port for working fluid; a spool (20) movably housed in the sleeve (10) in the axial direction; a biasing device (30) including a spring (31) as a biasing member configured to press a base end (20a) of the spool (20) toward a tip end (20b) of the spool (20); and a pressure detecting port (56) for the working fluid, opening toward the tip end (20b) of the spool (20). The outlet port (12) is constituted of slits (16), and the slits (16) are arranged at intervals in the circumferential direction of the sleeve (10) and extended in the axial direction.
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公开(公告)号：EP3985255A1
公开(公告)日：2022-04-20
申请号：EP20822821.3
申请日：2020-06-04
申请人： IHI Corporation
发明人： MASUDA, Seiei
摘要： A pump system (1) includes: a triple-gear pump which pressurizes a fluid using three gears (3a, 3b and 3c); an outlet flow path (R4) which guides the fluid from a first pressure-increasing portion (A) to an outlet; a first flow path (R1) which guides the fluid from the first pressure-increasing portion to a second pressure-increasing portion (B); a second flow path (R2) which guides the fluid from the second pressure-increasing portion to the outlet flow path; a third flow path (R3) connected to the first flow path and the second flow path; a first valve device (4) provided in the first flow path; a second valve device (7) provided in the second flow path, and a control device (8) which controls the first valve device. When the first pressure-increasing portion and the second pressure-increasing portion are switched from a parallel state to a series state, the control device causes the first valve device to open after the second valve device is closed.
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公开(公告)号：EP2055954A1
公开(公告)日：2009-05-06
申请号：EP07792539.4
申请日：2007-08-15
申请人： IHI Corporation
发明人： MASUDA, Seiei , MATSUNAGA, Yasushi
IPC分类号： F04C2/18
CPC分类号： F04C2/18 , F01C21/02 , F04C2240/52
摘要： In a double gear pump 2 that is provided with a drive gear 20; two driven gears 21 and 22 that are oppositely arranged with the drive gear 20 therebetween, a first bearing 36 that supports a drive shaft of the drive gear 20; and a second and a third bearings 37 and 38 that support rotating shafts of the two driven gears 21 and 22, the bearing length of the first bearing 36 is formed shorter than the bearing lengths of the second and third bearings 37 and 38. According to the present invention, it is possible to provide a double gear pump that is capable of easily and reliably reducing the bearing loss of a bearing that support a gear.
摘要翻译： 在设置有驱动齿轮20的双齿轮泵2中; 两个从动齿轮21和22与驱动齿轮20相对设置，支撑驱动齿轮20的驱动轴的第一轴承36; 以及支撑两个从动齿轮21和22的旋转轴的第二和第三轴承37和38，第一轴承36的轴承长度形成为比第二和第三轴承37和38的轴承长度短。根据 在本发明中，可以提供能够容易且可靠地减小支撑齿轮的轴承的轴承损耗的双齿轮泵。
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公开(公告)号：EP3324048B1
公开(公告)日：2020-02-26
申请号：EP15898306.4
申请日：2015-07-16
申请人： IHI Corporation
发明人： TAKAMIYA, Kenji , MASUDA, Seiei
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公开(公告)号：EP3324048A1
公开(公告)日：2018-05-23
申请号：EP15898306.4
申请日：2015-07-16
申请人： IHI Corporation
发明人： TAKAMIYA, Kenji , MASUDA, Seiei
CPC分类号： F04C11/001 , F01C21/02 , F04C2/084 , F04C2/102 , F04C2/14 , F04C14/02 , F04C14/24 , F04C15/0042 , F16C17/02 , F16C17/18 , F16C25/04 , F16C2361/61
摘要： A gear pump is comprised of a driving gear, a first driven gear and second driven gears mutually in mesh; a housing accommodating them and defining a flow path including a first suction port, a second suction port, a first pressure port and a second pressure port; a floating comprising a thrust face bearing a floating force exerted by fluids and first, second and third pressure-receiving faces respectively oriented in a direction opposed to the thrust face; a first pressurizing chamber held between the first pressure-receiving face and the housing and having fluid connection with the first pressure port or the second pressure port to exert pressure on the first pressure-receiving face; a second pressurizing chamber held between the second pressure-receiving face and the housing and having fluid connection with the first suction port to exert pressure on the second pressure-receiving face; and a third pressurizing chamber held between the third pressure-receiving face and the housing and having fluid connection with the second suction port to exert pressure on the third pressure-receiving face.
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公开(公告)号：EP2055954B1
公开(公告)日：2017-12-13
申请号：EP07792539.4
申请日：2007-08-15
申请人： IHI Corporation
发明人： MASUDA, Seiei , MATSUNAGA, Yasushi
IPC分类号： F04C2/18
CPC分类号： F04C2/18 , F01C21/02 , F04C2240/52
摘要： In a double gear pump 2 that is provided with a drive gear 20; two driven gears 21 and 22 that are oppositely arranged with the drive gear 20 therebetween, a first bearing 36 that supports a drive shaft of the drive gear 20; and a second and a third bearings 37 and 38 that support rotating shafts of the two driven gears 21 and 22, the bearing length of the first bearing 36 is formed shorter than the bearing lengths of the second and third bearings 37 and 38. According to the present invention, it is possible to provide a double gear pump that is capable of easily and reliably reducing the bearing loss of a bearing that support a gear.
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