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公开(公告)号：US20240401664A1
公开(公告)日：2024-12-05
申请号：US18698142
申请日：2022-09-22
Applicant: KYB Corporation
Inventor： Kazuyuki MIZUNO , Yoshifumi KOBAYASHI , Ryota GOMI , Hiroki YOKOYAMA , Yutaro HONJO
Abstract: A valve includes: a leaf valve component; an opposing surface opposing to the component, the opposing surface being configured to prohibit passage of working fluid in a liquid path where the component is arranged; and a seating surface configured to come into contact with the component and prohibit passage of the working fluid in the liquid path in a case in which the component is elastically deformed by a predetermined amount, wherein, in an allowing stroke, during which the passage of the working fluid is allowed, the component is elastically deformed in a direction away from the seating surface so as to allow the passage of the working fluid, and the predetermined amount is set such that the component comes into contact with the seating surface when the speed of a piston exceeds an upper limit value of a predetermined normal range in a restricting stroke.
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公开(公告)号：US20220252128A1
公开(公告)日：2022-08-11
申请号：US17626710
申请日：2020-09-02
Applicant: KYB CORPORATION
Inventor： Yoshifumi KOBAYASHI , Tomoyasu ABE , Yuusuke FURUTA , Naoaki DANSHITA , Kohei DOI , Masatoshi IYATANI
Abstract: A solenoid includes a first fixed iron core and a second fixed iron core located on a first end side and a second end side of an axial direction of a coil, a first movable iron core and a second movable iron core located therebetween and attracted by the first fixed iron core and the second fixed iron core by passage of current through the coil, respectively, a spring that biases the first movable iron core to the second fixed iron core side, a leaf spring that regulates movement of the first movable iron core to the second fixed iron core side with respect to the second movable iron core, and a communication passage that causes the first fixed iron core side of the second movable iron core to communicate with the second fixed iron core side.
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公开(公告)号：US20210025471A1
公开(公告)日：2021-01-28
申请号：US16968074
申请日：2019-02-12
Applicant: KYB Corporation
Inventor： Yoshifumi KOBAYASHI , Tomoyasu ABE , Yuusuke FURUTA
Abstract: A damping valve includes a valve seat member, a first valve element stacked on the valve seat member, a second valve element provided between an inner circumference valve seat of the valve seat member and the first valve element, the second valve element being configured to open and close a hole of the first valve element, and a biasing member configured to bias the first valve element towards the second valve element, wherein a surface of the second valve element on an opposite side from the valve seat member is higher than the outer circumference valve seat of the valve seat member.
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公开(公告)号：US20240044390A1
公开(公告)日：2024-02-08
申请号：US18269217
申请日：2022-01-07
Applicant: KYB Corporation
Inventor： Yoshifumi KOBAYASHI
CPC classification number: F16F9/348 , F16F9/185 , F16K15/148 , F16F2222/12 , F16F2234/02 , F16F2232/08
Abstract: A valve of the present invention includes: a valve seat member that has a port, an annular window which communicates with an outlet end of the port, an inner-circumferential valve seat provided on an inner-circumferential side of the annular window, and an outer-circumferential valve seat of the annular window; a first valve body that are stacked on a valve seat member, that can seat on or come off the outer-circumferential valve seat to open or close the annular window, and that has a hole; a second valve body that is contained in the annular window so as to be movable in an axial direction and that closes the hole when abutting on a valve seat member side surface of the first valve body; a second valve body biasing member that is contained in the annular window and that biases the second valve body toward the first valve body; a regulating portion that restricts a movement of the second valve body in a direction in which the second valve body moves away from the first valve body; and a communication passage that secures communication between the hole and the port even when the second valve body abuts on the regulating portion.
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公开(公告)号：US20230296156A1
公开(公告)日：2023-09-21
申请号：US18018183
申请日：2021-08-17
Applicant: KYB Corporation
Inventor： Tomoyasu ABE , Yoshifumi KOBAYASHI , Toshihiro MORI
CPC classification number: F16F9/3485 , F16K17/04
Abstract: A damping valve includes: a disk with a port and a valve seat surrounding the port; a leaf valve that opens and closes the port by causing the front side to sit on and leave the valve seat; a tubular housing provided on the back side of the leaf valve; an annular spool that abuts on the back of the leaf valve and is slidably inserted into the inner circumference of the housing to form a back pressure chamber that causes back pressure to act on the leaf valve inwardly together with the housing; an annular spring support portion that is located on the back side of the leaf valve, faces the inside of the back pressure chamber, and has a smaller outer diameter than an inner diameter of the spool; and an annular leaf spring that is interposed between one end of the spool that is an opposite side end of the leaf valve and the spring support portion and presses the spool in a direction of abutting on the leaf valve.
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Patent Agency Ranking
公开(公告)号：US20220243839A1
公开(公告)日：2022-08-04
申请号：US17626720
申请日：2020-09-02
Applicant: KYB CORPORATION
Inventor： Yoshifumi KOBAYASHI , Tomoyasu ABE , Yuusuke FURUTA , Naoaki DANSHITA , Kohei DOI , Masatoshi IYATANI
Abstract: A solenoid includes a first fixed iron core and a second fixed iron core located on a first end side and a second end side of an axial direction of a coil, a first movable iron core and a second movable iron core located therebetween and attracted by the first fixed iron core and the second fixed iron core by passage of current through the coil, respectively, a spring that biases the first movable iron core to the second fixed iron core side, and a leaf spring that regulates movement of the first movable iron core to the second fixed iron core side with respect to the second movable iron core. The movement of the first movable iron core in a direction orthogonal to the axial direction of the coil with respect to the first fixed iron core and the second fixed iron core is regulated.
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公开(公告)号：US20180259031A1
公开(公告)日：2018-09-13
申请号：US15759432
申请日：2016-09-08
Applicant: KYB Corporation
Inventor： Yoshifumi KOBAYASHI
Abstract: A damping valve includes a valve element member, a disc spring, and a solenoid. The valve element member opens and closes an upstream side and a downstream side of a pilot passage by a pressure control valve element seated on and liftable from a pressure control valve seat and an open/close valve element seated on and liftable from an open/close valve seat. The disc spring is interposed between a stepped part and the valve element member. The disc spring biases the valve element member in a direction in which the pressure control valve element separates from the pressure control valve seat and in which the open/close valve element approaches the open/close valve seat. The solenoid is configured to drive the valve element member against a biasing force by the disc spring. In a state in which the disc spring has a natural length, a clearance is formed between the open/close valve element and the open/close valve seat.
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公开(公告)号：US20230282405A1
公开(公告)日：2023-09-07
申请号：US18018164
申请日：2021-08-17
Applicant: KYB Corporation
Inventor： Yoshifumi KOBAYASHI , Tomoyasu ABE , Toshihiro MORI , Naoaki DANSHITA , Masatoshi IYATANI , Kohei DOI
CPC classification number: H01F7/1607 , F16F9/465 , F16F9/516 , F16K31/0675 , H01F7/081 , F16F2222/12 , F16F2228/066 , F16F2230/18 , F16F2232/08
Abstract: A solenoid includes: a coil; a first fixed iron core disposed on an axial first-end side of the coil; a second fixed iron core disposed on an axial second-end side of the coil with a gap from the first fixed iron core; a tubular first movable iron core disposed between the first fixed iron core and the second fixed iron core: a second movable iron core having a tubular shape with a bottom, slidably inserted into the first movable iron core, disposed between the first fixed iron core and the second fixed iron core with a bottom portion facing the second fixed iron core; and a spring interposed between the first movable iron core and the first fixed iron core, and pressing the first movable iron core to the second fixed iron core side.
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公开(公告)号：US20220254555A1
公开(公告)日：2022-08-11
申请号：US17626992
申请日：2020-09-02
Applicant: KYB CORPORATION
Inventor： Yoshifumi KOBAYASHI , Tomoyasu ABE , Yuusuke FURUTA , Naoaki DANSHITA , Kohei DOI , Masatoshi IYATANI
Abstract: A solenoid includes a first fixed iron core and a second fixed iron core located on one axial end side and the other axial end side of a coil, a first movable member and a second movable member located between those fixed iron cores and configured to be attracted to the first fixed iron core and the second fixed iron core, respectively, by energization of the coil, a spring configured to bias the first movable member toward the second fixed iron core, and a first regulating portion made from a non-magnetic material, provided integrally with the first movable member or the second movable member, and configured to regulate movement of the first movable member toward the second fixed iron core with respect to the second movable member.
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公开(公告)号：US20220252127A1
公开(公告)日：2022-08-11
申请号：US17626011
申请日：2020-09-02
Applicant: KYB CORPORATION
Inventor： Yoshifumi KOBAYASHI , Tomoyasu ABE , Yuusuke FURUTA , Naoaki DANSHITA , Kohei DOI , Masatoshi IYATANI
Abstract: A solenoid includes a first fixed iron core and a second fixed iron core located on a first end side and a second end side of an axial direction of a coil, a first movable iron core and a second movable iron core located therebetween and attracted by the first fixed iron core and the second fixed iron core by passage of current through the coil, respectively, a spring housed in a spring chamber formed on the first fixed iron core side of the first movable iron core and biasing the first movable iron core to the second fixed iron core side, a leaf spring that regulates movement of the first movable iron core to the second fixed iron core side with respect to the second movable iron core, and a throttle passage that causes the spring chamber to communicate with outside.
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