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.

公开(公告)号：US20220176764A1

公开(公告)日：2022-06-09

申请号：US17601173

申请日：2020-03-25

Applicant: KYB Corporation

Inventor： Takahisa MOCHIZUKI ,  Takuhiro KONDO

IPC: B60G11/30 ,  B60G13/14

Abstract: Provided is a vehicle capable of suppressing an increase in weight. A vehicle includes an air suspension device (pneumatic apparatus), an accumulator, and an air pump. Compressed air is supplied to the air suspension device. The accumulator stores compressed air to be supplied to the air suspension device. The air pump is driven by a relative movement between a vehicle body and wheels, and generates compressed air to be stored in the accumulator.

公开(公告)号：USD951532S1

公开(公告)日：2022-05-10

申请号：US29671162

申请日：2018-11-23

Applicant: KYB Corporation

Designer： Yusuke Takahashi

公开(公告)号：US20220136580A1

公开(公告)日：2022-05-05

申请号：US17434960

申请日：2020-02-28

Applicant: KYB CORPORATION

Inventor： Sodai SHIMAUCHI ,  Koichiro AWANO ,  Masashi UEMURA

IPC: F16F9/10 ,  F16F9/34 ,  F16F9/32 ,  F16F9/44 ,  F16K3/26

Abstract: A shock absorber includes a hard side damping element that imparts a resistance to a flow of liquid moving between an extension side chamber and a compression side chamber, a solenoid valve configured to change an aperture area of a bypass passage that bypasses the hard side damping element and communicates with the extension side chamber and the compression side chamber, a soft side damping element provided in series with the solenoid valve in the bypass passage, and a tank connected to the compression side chamber. The hard side damping element includes an orifice and leaf valves provided in parallel with the orifice. The soft side damping element includes an orifice having a larger aperture area than the orifice.

公开(公告)号：US11320019B2

公开(公告)日：2022-05-03

申请号：US16301156

申请日：2017-06-23

Applicant: KYB CORPORATION

Inventor： Naoki Yasukouchi

IPC: F16F9/58 ,  B60G13/00 ,  F16F9/19 ,  F16F9/38 ,  B60G13/08 ,  F16F9/36 ,  F16F9/32

Abstract: A bump cap includes: a tubular main body part; and three or more protrusions provided at different positions in a circumferential direction of an inner circumference of the main body part. A plurality of protrusions are press-fit protrusions having a radial height higher than a radial height of the other protrusions, and the number of the press-fit protrusions are smaller than the number of the other protrusions, and the bump cap is configured to be mounted on an outer circumference of an outer shell of a shock absorber in state where the press-fit protrusions are pushed against the outer circumference of the outer shell.