公开(公告)号：US11611269B2

公开(公告)日：2023-03-21

申请号：US16701624

申请日：2019-12-03

Applicant: KYB CORPORATION ,  TOP CO., LTD.

Inventor： Sayaka Ueno ,  Hiroyuki Miyoshi ,  Masanobu Sunabata

IPC: H02K1/27 ,  H02K15/03 ,  H02K1/276

Abstract: The rotor includes a drive shaft, a first rotor core unit, and a second rotor core unit. The first rotor core unit is configured from a first iron core material having a through-hole into which the drive shaft is inserted, and a plurality of first permanent magnets, and includes a first reference surface at which the first iron core material is flush with or protruding further than first permanent magnets. The second rotor core unit is configured from a second iron core material having a through-hole into which the drive shaft is inserted, and a plurality of second permanent magnets, and has a second reference surface at which the second iron core material is flush with or protruding further than second permanent magnets, the second rotor core unit being laminated in an axial direction on the first rotor core unit such that the first reference surface and the second reference surface contact each other.

公开(公告)号：US11583907B2

公开(公告)日：2023-02-21

申请号：US16640459

申请日：2018-08-22

Applicant: KYB Corporation

Inventor： Tomomi Hayase ,  Ryuichi Kaneko

IPC: B21C37/29 ,  B21D28/28

Abstract: Provided are a forming method and a forming apparatus which can secure strength after forming while suppressing deformation.
The forming method of the present invention includes a burring step and a pressing step. In the burring step, a branch pipe is formed by causing a cylindrical peripheral wall of a cylindrical member (workpiece) having the peripheral wall to project in an outside direction in a tubular shape. In the pressing step, a distal end surface of the branch pipe is pressed toward a proximal end portion of the branch pipe. In the pressing step, the distal end surface of the branch pipe can be pressed by an end surface pressing punch in a state where a burring punch is inserted in the branch pipe.

公开(公告)号：US11569705B2

公开(公告)日：2023-01-31

申请号：US17182197

申请日：2021-02-22

Applicant: KYB Corporation

Inventor： Sayaka Ueno ,  Takayuki Kawaguchi ,  Shun Matsuda ,  Tarou Matsumae

IPC: H02K5/16 ,  H02K5/173 ,  F16C17/02 ,  H02K7/08

Abstract: An object of the present invention is to hold a holding member appropriately in a casing.
A rotary electric machine includes a rotor having a drive shaft, a stator provided on an outer periphery of the rotor, a bearing B2 that rotatably supports the drive shaft, a holding member that contains an aluminum alloy member and holds the bearing, and a casing that houses the rotor, the stator, the bearing, and the holding member. The casing is made of a member that does not grow permanently or an aluminum alloy member that is permanently grown when the holding member is fixed to the casing. The holding member is in a state before permanent growth before being fixed in the casing, and the holding member grows permanently to be fixed more firmly to the casing.

公开(公告)号：US11566680B2

公开(公告)日：2023-01-31

申请号：US16979426

申请日：2019-03-06

Applicant: KYB CORPORATION

Inventor： Hidemasa Kato ,  Ryosuke Kamakura

IPC: F16F9/34 ,  F16F9/19 ,  F16K15/18 ,  B60G13/08 ,  F16F9/348 ,  F16F9/516 ,  F16K31/06 ,  B60G17/08 ,  F16F9/06

Abstract: Provided is a valve device and a shock absorber that can prevent them from being in a failure state at the normal time and can freely set a passive valve even when both pressure control and passage opening/closing are performed by a solenoid valve. For this reason, the valve device includes a first passage and a second passage connected downstream of the pressure introducing passage, a solenoid valve that opens the first passage to control the upstream pressure and closes the second passage when energized, and that closes the first passage and opens the second passage when not energized, and a passive valve provided downstream of the solenoid valve in the second passage.

公开(公告)号：US11536344B2

公开(公告)日：2022-12-27

申请号：US16982917

申请日：2019-04-02

Applicant: KYB Corporation

Inventor： Kazuyuki Kimishima ,  Takeshi Yasui

IPC: F16F9/34 ,  F16K1/22 ,  F16F9/348 ,  F16K1/226

Abstract: The valve includes a valve case; an annular valve body, an outer peripheral end of which is a free end movable to both sides in an axial direction with respect to the valve case; a facing portion provided in the valve case, the facing portion including an annular facing surface which is located on an outer peripheral side of the valve body and is configured to face the free end with a gap; and first and second valve stoppers which are located on both sides respectively in the axial direction of the valve body. The first and second valve stoppers, respectively, have a plurality of support portions that are configured to support different positions of the valve body in a radial direction at different heights when the valve body deflects.

公开(公告)号：US20220389944A1

公开(公告)日：2022-12-08

申请号：US17755763

申请日：2020-10-13

Applicant: KYB Corporation

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

IPC: F15B21/00 ,  F15B13/00

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：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

IPC: F16K31/06 ,  F16F9/19 ,  F16F9/46

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.

公开(公告)号：US20220204882A1

公开(公告)日：2022-06-30

申请号：US17601828

申请日：2020-04-10

Applicant: KYB Corporation

Inventor： Shinji Kato

IPC: C10M137/10 ,  C10M169/04 ,  C07F9/165 ,  F16F9/32

Abstract: To provide a lubricant composition for shock absorbers, a friction adjusting additive for a lubricant for shock absorbers, and a lubricant additive, each capable of satisfying both operational stability and ride comfort and improving the ride comfort further. The lubricant composition for shock absorbers contains a base oil and a friction adjusting agent and the friction adjusting agent contains a first zinc dithiophosphate represented by the following formula 1: [in the formula 1, R11 to R14 are alkyl groups in which one or more and three or less is/are a primary alkyl group and the other(s) is/are a secondary alkyl group].

公开(公告)号：US20220178369A1

公开(公告)日：2022-06-09

申请号：US17600549

申请日：2020-03-03

Applicant: KYB Corporation

Inventor： Kouhei KUBO ,  Tomoyuki FUJITA ,  Koichiro AKATSUKA ,  Yoshiyuki MAKI

IPC: F04C15/00 ,  F04C18/344 ,  F04C2/344

Abstract: A vane pump is provided with: a pump housing having an accommodating concave portion; and a pump cartridge accommodated in the accommodating concave portion, wherein the pump cartridge has: a rotor; a plurality of vanes received in a plurality of slits formed in the rotor; a cam ring formed with a cam face on an inner circumference of the cam ring; and a first side plate provided at the opposite side from a bottom surface of the accommodating concave portion such that the cam ring is located therebetween, the first side plate has a first projected portion projected radially outward, and the pump cartridge is anchored to the pump housing via the first projected portion.

公开(公告)号：US11339884B2

公开(公告)日：2022-05-24

申请号：US16637608

申请日：2018-12-03

Applicant: KYB Corporation

Inventor： Takeshi Terao ,  Atsushi Fujii ,  Nobuyoshi Yoshida

IPC: F16K17/02 ,  F15B13/02 ,  F15B13/04

Abstract: A valve device includes a relief valve configured to be opened when a pressure in a fluid pressure circuit reaches a predetermined pressure and to relieve a working fluid, a tank passage connected to a tank, a main relief passage connecting the relief valve and the tank passage, and a sub relief passage branching from the main relief passage and connected to the tank passage separately from the main relief passage.