公开(公告)号：US20250052295A1

公开(公告)日：2025-02-13

申请号：US18718634

申请日：2023-01-13

Applicant: KYB Corporation

Inventor： Takeshi YASUI

IPC: F16F9/348

Abstract: A damping valve of the present invention includes: a partition wall body that is annular, and is inserted into a cylindrical body, is radially positioned only by the cylindrical body, and has an annular outer circumferential valve seat protruding axially from an axial one end and a port provided on an inner circumferential side of the outer circumferential valve seat; a valve stopper having an annular inner circumferential valve seat facing the one end of the partition wall body and having an outer diameter smaller than that of the outer circumferential valve seat; and an annular leaf valve that is interposed between the outer circumferential valve seat and the inner circumferential valve seat and is set to be open to both the inside and the outside to open and close the port, wherein the partition wall body includes an aligning portion that aligns the leaf valve with respect to the outer circumferential valve seat.

公开(公告)号：US12173774B2

公开(公告)日：2024-12-24

申请号：US17434650

申请日：2020-02-28

Applicant: KYB CORPORATION

Inventor： Koichiro Awano ,  Takahisa Mochizuki ,  Masashi Uemura

IPC: F16F9/34 ,  F16F9/18 ,  F16F9/44 ,  F16F9/516 ,  B62K25/04 ,  B62K25/08 ,  F16F9/06

Abstract: A shock absorber includes a hard-side damping element for applying resistance to a flow of liquid from a compression side chamber to an extension side chamber, a solenoid valve capable of changing an opening area of a compression side bypass passage for communicating the compression side chamber and the extension side chamber by bypassing the hard-side damping element, and a soft-side damping element provided in the compression side bypass passage in series with the solenoid valve. The hard-side damping element has an orifice and a leaf valve provided in parallel with the orifice. The soft-side damping element has an orifice having an opening area larger than that of the orifice.

公开(公告)号：US12145116B2

公开(公告)日：2024-11-19

申请号：US17594050

申请日：2020-03-23

Applicant: KYB CORPORATION

Inventor： Akihisa Oota ,  Eishin Noguchi ,  Terumi Mori

IPC: B01F25/31 ,  B01F23/21 ,  B01F23/23 ,  B01F23/231 ,  B01F25/10 ,  B01F25/312 ,  B01F35/75 ,  F04C2/356 ,  F04C15/06 ,  B01F25/00 ,  B01F101/39

Abstract: A production apparatus for a liquid containing gas bubbles includes a casing, a pump unit, and a gas bubble-mixing unit. The casing is provided with a main flow channel for a liquid, the main flow channel having a liquid inflow port and a liquid outflow port. The pump unit is disposed in the main flow channel and pumps the liquid to the liquid outflow port from the liquid inflow port. The gas bubble-mixing unit includes a first choke portion that is disposed in the main flow channel and has an inner diameter decreased and a gas supply channel that supplies the first choke portion with a gas.

公开(公告)号：US12106900B2

公开(公告)日：2024-10-01

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

IPC: F16F9/34 ,  F16K31/06 ,  H01F7/08 ,  H01F7/16 ,  F16F9/10

CPC classification number: H01F7/081 ,  F16F9/34 ,  F16K31/0675 ,  H01F7/16 ,  F16F9/10 ,  F16F2222/12

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.

公开(公告)号：US12085139B2

公开(公告)日：2024-09-10

申请号：US17766508

申请日：2020-07-03

Applicant: KYB Corporation

Inventor： Shinji Kato

IPC: F16F9/32 ,  C10M125/24 ,  C10M129/74

CPC classification number: F16F9/3278 ,  C10M125/24 ,  C10M129/74 ,  C10M2201/085 ,  C10M2207/282 ,  F16F2230/04

Abstract: To provide a lubricant composition for shock absorbers, a shock absorber, and a method for adjusting the friction of a lubricant composition for shock absorbers, each capable of satisfying both operational stability and ride comfort particularly at the time of a minute amplitude. The lubricant composition for shock absorbers contains a base oil and a friction adjusting agent, wherein the friction adjusting agent contains a pentaerythritol ester, the pentaerythritol ester contains a pentaerythritol tetraester at the highest proportion or in an amount of 50 mass % or more, and the pentaerythritol ester content is 0.5 mass % or more.

公开(公告)号：US20240271640A1

公开(公告)日：2024-08-15

申请号：US18681702

申请日：2022-07-21

Applicant: KYB Corporation

Inventor： Shunsuke KUBO

IPC: F15B11/028

CPC classification number: F15B11/028 ,  F15B2211/30505 ,  F15B2211/329 ,  F15B2211/50518

Abstract: A load holding mechanism includes a switching valve configured to switch an operation of an operation check valve, and a relief valve configured to open when pressure in a load-side pressure chamber reaches predetermined pressure, and the switching valve includes a drain chamber provided on an opposite side of a spring chamber with a spool interposed therebetween, a drain passage connected to the relief valve and connected to at least one of the drain chamber and the spring chamber, a pressure leading passage configured to connect the drain passage and a downstream side of the spool, and a check valve provided in the pressure leading passage and configured to allow only a flow of the working fluid from the drain passage to the downstream side of the spool.

公开(公告)号：US12054687B2

公开(公告)日：2024-08-06

申请号：US17919810

申请日：2021-03-16

Applicant: KYB Corporation

Inventor： Shinji Kato

IPC: C10M129/74 ,  B60G13/08 ,  C10M129/76 ,  C10M169/04 ,  F16F9/32 ,  C10N40/08

CPC classification number: C10M129/74 ,  B60G13/08 ,  C10M129/76 ,  C10M169/04 ,  F16F9/3278 ,  B60G2202/24 ,  B60G2800/162 ,  C10M2203/003 ,  C10M2207/283 ,  C10M2207/289 ,  C10N2040/08 ,  F16F2222/04 ,  F16F2230/04

Abstract: Provided are a lubricant composition for shock absorbers, a lubricant additive, and a method of adjusting friction characteristics of a lubricant composition for shock absorbers, each capable of satisfying both the operational stability and ride comfort. The lubricant composition for shock absorbers contains a base oil and a friction adjusting agent, the friction adjusting agent contains pentaerythritol esters, and the pentaerythritol esters contain a pentaerythritol tetraester and a pentaerythritol ester other than the pentaerythritol tetraester.

公开(公告)号：US12038001B2

公开(公告)日：2024-07-16

申请号：US17755763

申请日：2020-10-13

Applicant: KYB Corporation

Inventor： Tsuyoshi Hironaka ,  Midori Nagashima ,  Ken Tsukui ,  Kazuya Murota

IPC: F04C14/02 ,  F16H57/04 ,  F15B13/00 ,  F15B21/00 ,  F16H61/00

CPC classification number: F04C14/02 ,  F16H57/0439 ,  F15B13/00 ,  F15B21/001 ,  F16H57/0435 ,  F16H57/0441 ,  F16H61/0031

Abstract: A working-fluid supply system includes: a first pump and a second pump driven by an engine; a first switching valve capable of switching a supply target of the second pump to either one of the discharge side and the suction side of the first pump; a first switching control unit configured to perform a switching control of the first switching valve; and a first pressure control unit configured to perform a control such that pressure on the suction side of the first pump becomes a predetermined first pressure when the first switching valve is switched such that the supply target of the second pump becomes the suction side of the first pump.

公开(公告)号：US20240227488A1

公开(公告)日：2024-07-11

申请号：US18560050

申请日：2021-07-26

Applicant: KYB Corporation

Inventor： Takahisa MOCHIZUKI

IPC: B60G17/08 ,  B60G15/06

CPC classification number: B60G17/08 ,  B60G15/062 ,  B60G2202/312 ,  B60G2300/12 ,  B60G2500/30

Abstract: A shock absorber with a vehicle height adjustment function according to the present invention includes a shock absorber main body that includes a cylinder filled with liquid, a piston that partitions inside of the cylinder into an extension side chamber and a compression side chamber, a piston rod coupled to the piston, a suspension spring that biases the shock absorber main body in an extending direction, a reservoir that accumulates liquid, a damper circuit that is connected to the extension side chamber, the compression side chamber, and the reservoir and generates a damping force in the shock absorber main body at the time when the shock absorber main body expands/contracts, a pump that is able to suck liquid from the reservoir and discharge the liquid, and a switching valve that is installed between the shock absorber main body and the damper circuit and the pump and switches a damper mode in which the shock absorber main body is connected to the damper circuit so as to generate a damping force in the shock absorber main body and a vehicle height adjustment mode in which the shock absorber main body is connected to the pump.

公开(公告)号：US12003168B2

公开(公告)日：2024-06-04

申请号：US17615731

申请日：2020-03-26

Applicant: KYB CORPORATION

Inventor： Yuu Eguchi ,  Haruki Tomita ,  Shun Matsuda

IPC: H02K9/22 ,  H02K5/04

CPC classification number: H02K9/22 ,  H02K5/04

Abstract: Increase the heat dissipation effect of the heat sink on the heat generating element.
In the rotary electric machine, the portions of the circuit board that are installed in the first and the second installation portion of the heat-sink are configured as non-coated portions, and the non-coated portion is not coated with resist. Therefore, the circuit board can be installed in the first and the second installation portion of the heat-sink without being affected by the variation in the film thickness of the resist. Thus, the gap between the FET mounted on the circuit board and the first to third heat dissipating portion of the heat-sink can be set as small as possible. Therefore, the heat generated by the FET can be efficiently transferred to the heat-sink. As described above, the heat dissipation effect of the heat-sink on the FET can be enhanced.