公开(公告)号：US20230011239A1

公开(公告)日：2023-01-12

申请号：US17756861

申请日：2020-10-13

Applicant: KYB Corporation

Inventor： Tsuyoshi HIRONAKA ,  Midori NAGASHIMA ,  Ken TSUKUI ,  Kazuya MUROTA

IPC: B60R16/08 ,  F15B11/17

Abstract: A working fluid supply system is provided with: a first oil pump and a second oil pump driven by an engine; a switching valve configured to cause a discharge passage of the second oil pump to communicate with at least one of a supply passage and a first drain passage; and a controller configured to switch the switching valve. The controller is configured to switch the switching valve by spending a switching time that is set in accordance with a degree of pressure variation predicted to be caused in the supply passage when the switching valve is switched instantaneously.

公开(公告)号：US11536348B2

公开(公告)日：2022-12-27

申请号：US16638472

申请日：2018-07-24

Applicant: KYB Corporation

Inventor： Takaya Yagyu

IPC: F16H1/16 ,  F16H57/022 ,  B62D5/04 ,  F16H57/021

Abstract: A power steering device includes a bearing rotatably supporting the tip side of a worm shaft, a gear case provided with the housing hole for housing the worm shaft and a holder housing the bearing. The holder includes a first holder holding the bearing, a second holder having the guide part configured to guide a movement of the second bearing toward a worm wheel, and a spring provided in a compressed state between the first holder and the second holder and configured to bias the first holder toward the worm wheel. The second holder includes a holder opening part configured to allow the bearing and the first holder to pass through thereof in the guiding direction of the guide part to guide the bearing, and the first holder faces an inner peripheral surface of the housing hole through the holder opening part.

公开(公告)号：US11536346B2

公开(公告)日：2022-12-27

申请号：US16976695

申请日：2019-03-08

Applicant: KYB Corporation

Inventor： Gai Cho ,  Naoki Kubota ,  Masahiro Miwa

IPC: F16F9/36 ,  F16F9/19 ,  F16F9/06 ,  B60G13/08 ,  F16F9/58

Abstract: A shock absorber includes a bearing unit having a bearing and a bearing holding member, and a seal unit having a seal member and a seal holding member. The seal holding member includes a seal accommodating portion being configured to accommodate the seal member, and an insertion hole through which a piston rod is inserted. The seal member is pressed against an outer circumferential surface of the piston rod and the seal accommodating portion by working-fluid pressure in the extension-side chamber. And the bearing is provided such that a first end surface of the bearing facing the seal member matches an aperture plane of a through hole of the bearing holding member or such that the first end surface of the bearing projects out from the aperture plane of the through hole.

公开(公告)号：US11522407B2

公开(公告)日：2022-12-06

申请号：US16616123

申请日：2018-06-19

Applicant: KYB CORPORATION

Inventor： Sayaka Ueno ,  Yuu Eguchi ,  Syun Matsuda

IPC: H02K5/24 ,  H02K11/33 ,  H02K11/01 ,  H02K5/173 ,  H02K5/22 ,  H02K7/08 ,  H02K21/14 ,  B62D5/04 ,  H02K3/50 ,  H05K7/14 ,  H05K7/20

Abstract: [Object] To provide an electronic apparatus capable of inhibiting a failure due to dropping of a screw from occurring.
[Solving Means] An electronic apparatus 100 according to an embodiment of the present invention includes: a casing 10; a cover portion (case cover 20); a circuit board 22; a screw member 80; and a facing member (holding member 60). The cover portion has a first surface and a second surface and is to be attached to an opening portion 11 of the casing 10, the first surface including a screw hole 203 and facing the casing 10, the second surface being opposite to the first surface. The circuit board 22 is to be disposed on the first surface. The screw member 80 includes a head portion 81 and a shank 82 and fixes the circuit board 22 to the cover portion, the head portion 81 engaging with the circuit board 22, the shank 82 including a groove 82s and passing through the circuit board 22, the groove 82s being screwed into the screw hole 203. The facing member is to be disposed inside the casing 10 and faces the head portion 81 with a distance (L1) smaller than a length (L2) of the shank 82.

公开(公告)号：US11466707B2

公开(公告)日：2022-10-11

申请号：US16967615

申请日：2019-04-23

Applicant: KYB Corporation

Inventor： Yusuke Takahashi ,  Takahiro Iwamoto ,  Keitaro Yoshida ,  Takayoshi Kikuchi

IPC: F15B20/00 ,  F15B15/14 ,  G01M3/26

Abstract: A fluid leakage detection system has a detection space to which working oil leaked out through a rod seal is guided; the rod seal being configured to seal an annular gap between a piston rod and a cylinder head; a sensor unit configured to detect pressure in the detection space; and a controller configured to acquire detected result from the sensor unit, wherein the controller has: a calculation unit configured to calculate a pressure parameter representing a pressure fluctuation in the detection space; a determination unit configured to determine occurrence of leakage of the working oil based on the pressure parameter; and the pressure parameter includes an upper limit value and a lower limit value of the pressure fluctuation obtained from the detected result detected by the sensor unit within a predetermined detection period.

公开(公告)号：US20220316549A1

公开(公告)日：2022-10-06

申请号：US17690752

申请日：2022-03-09

Applicant: KYB CORPORATION

Inventor： Takeshi YASUI ,  Masaki KOYAMA ,  Naoki YAMAMOTO

IPC: F16F9/516 ,  F16F9/348 ,  F16F9/06

Abstract: A shock absorber is provided. The shock absorber of the present invention includes a shock absorber main body, a damping passage, a primary damping force generation component, and a secondary damping force generation component. The shock absorber main body has an outer tube and a rod and is stretchable. The damping passage communicates operating chambers with each other provided in the shock absorber main body. The primary and secondary damping force generation components are provided in series with the damping passage. The secondary damping force generation component includes a secondary valve, an annular facing portion, and a valve stopper. The annular facing portion faces the secondary valve with an annular gap between the annular facing portion and the secondary valve. The valve stopper has elasticity to allow bending, and when the secondary valve bends and comes in contact with the valve stopper, restricts the secondary valve from bending.

公开(公告)号：US11415218B2

公开(公告)日：2022-08-16

申请号：US17285004

申请日：2019-10-21

Applicant: KYB Corporation

Inventor： Kazuya Murota

IPC: F16H61/02 ,  F16H61/12

Abstract: A working fluid supply device is provided with: a first oil pump and a second oil pump driven by an engine; a third oil pump driven by an electric motor; a first unloading valve configured to shift the second oil pump to a no-load operation state; and a controller configured to control a supply state of working oil to an automatic transmission. The controller sets the supply state to a supply state selected from: a first supply state in which the working oil is supplied only from the first oil pump; a second supply state in which the working oil is supplied from the first oil pump and the third oil pump; a third supply state in which the working oil is supplied from the first oil pump and the second oil pump; and a fourth supply state in which the working oil is supplied from the first oil pump, the second oil pump, and the third oil pump.

公开(公告)号：US20220242185A1

公开(公告)日：2022-08-04

申请号：US17612318

申请日：2020-05-20

Applicant: KYB Corporation

Inventor： Makoto HANAI ,  Takuhiro KONDO

IPC: B60G7/04 ,  B60G3/10 ,  B60G11/08 ,  B60G13/10

Abstract: A suspension device includes a leaf spring and a buffer. The leaf spring applies an elastic force for relatively moving an unsprung member in a predetermined direction with respect to a body (sprung member) of a vehicle. The buffer includes a first expansion/contraction member, a second expansion/contraction member, an intermediate member, and a damping passage. The first and second expansion/contraction members form first and second gas chambers filled with gas therein and are expandable and contractible. An upper end and a lower end of the first and second expansion/contraction members are connected to the body. The intermediate member couples the first and second expansion/contraction members and is connected to the leaf spring. The damping passage allows the first and second gas chambers to communicate with each other, and applies resistance to flow of flowing gas. When one of the first and second expansion/contraction members expands, the other contracts.

公开(公告)号：US20220228578A1

公开(公告)日：2022-07-21

申请号：US17714477

申请日：2022-04-06

Applicant: KYB Corporation

Inventor： Tetsuya IWANAJI ,  Masaya ABE ,  Takeshi KODAMA

IPC: F04B1/2078 ,  F04B1/324 ,  F04B53/14 ,  F04B53/16

Abstract: A swash-plate type piston pump includes a cylinder block configured to be rotated with rotation of a driving shaft, a plurality of pistons accommodated in a plurality of cylinders provided in the cylinder block, a swash plate configured to reciprocate the piston so that a volume chamber of the cylinder is expanded/contracted with the rotation of the cylinder block, an biasing mechanism configured to bias the swash plate in a direction where a tilting angle is made larger, a control pin configured to drive the swash plate in a direction where the tilting angle is made smaller in accordance with a rise in a load pressure of a pressure chamber, and a discharge channel configured to discharge the load pressure of the pressure chamber.

公开(公告)号：US20220184566A1

公开(公告)日：2022-06-16

申请号：US17593993

申请日：2020-03-23

Applicant: KYB CORPORATION

Inventor： Akihisa OOTA ,  Terumi MORI ,  Futoshi YOSHIDA ,  Ryunosuke ISHIKAWA

IPC: B01F23/231 ,  B01F25/64 ,  B01F27/74

Abstract: [Abstract] A production apparatus for a liquid containing gas bubbles according to an embodiment of the present invention includes a casing and a shearing mechanism unit. The casing includes an inlet, into which a liquid with a gas injected therein flows, and an outlet. The shearing mechanism unit is provided between the inlet and the outlet and applies shearing force to a liquid flowing to the outlet from the inlet. The shearing mechanism unit includes a rotor, a rotation applying unit, and a facing member. The rotor includes a rotary shaft and a tube portion having an outer peripheral portion including a first structure surface in which a plurality of recess portions is formed, and is rotatably disposed inside the casing. The rotation applying unit is provided in the rotary shaft and applies rotating force around the rotary shaft to the rotor. The facing member has an inner peripheral portion that faces the first structure surface via a predetermined clearance and is provided in an inner wall portion of the casing.