公开(公告)号：US20190301452A1

公开(公告)日：2019-10-03

申请号：US16344681

申请日：2017-11-08

Applicant: KYB Corporation

Inventor： Koichiro AKATSUKA ,  Yoshiyuki MAKI

IPC: F04C2/344 ,  F04C15/00 ,  F01C21/08

Abstract: A vane pump includes a pump rotor having a through hole to which a driving shaft is coupled, a pump housing configured to accommodate the pump rotor and the cam ring, and a first side plate provided between the pump rotor and a bottom surface of the pump housing. The first side plate or the pump housing is formed with a projection, the projection is inserted into the through hole of the pump rotor.

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：US20180258928A1

公开(公告)日：2018-09-13

申请号：US15760464

申请日：2016-09-08

Applicant: KYB Corporation

Inventor： Tomoyuki NAKAGAWA ,  Masamichi SUGIHARA ,  Yoshiyuki MAKI

IPC: F04C2/344 ,  F04C15/00 ,  F04C18/067

CPC classification number: F04C2/344 ,  F04C15/00 ,  F04C15/0057 ,  F04C18/067

Abstract: A cartridge vane pump includes a head pin that penetrates through a cover, a cover-side side plate and a cam ring that are fixed to an adapter. The head pin has a shaft portion that is fixed to the adapter at a tip end thereof, and a restricting portion that has a diameter larger than that of the shaft portion and being formed on a base end of the shaft portion. The cam ring, the cover, the cover-side side plate and a body-side side plate are held between the restricting portion and the adapter.

公开(公告)号：US20220034315A1

公开(公告)日：2022-02-03

申请号：US17290305

申请日：2019-09-20

Applicant: NIDEC TOSOK CORPORATION ,  KYB CORPORATION

Inventor： Koji HIGUCHI ,  Yutaka HASHIMOTO ,  Yoshiyuki MAKI ,  Kohei KUBO

IPC: F04C2/10 ,  F04C11/00 ,  F04C13/00 ,  F04C15/06

Abstract: An electric oil pump includes a motor including a motor shaft, a pump assembly including a vane pump driven by the motor to suction and discharge oil, and an inverter to drive the motor. The motor includes a rotor, a stator on a side outward from the rotor in a radial direction, and a motor housing containing the rotor and the stator. The motor housing includes a suction port through which the vane pump suctions oil from outside, and a discharge port through which the vane pump discharges oil to outside. The motor housing includes flat surface portions in a portion of an outer periphery thereof. The suction port and the discharge port are located in a first surface of side surfaces which are the flat surface portions of the motor housing and are parallel or substantially parallel to the axial direction.

公开(公告)号：US20210348620A1

公开(公告)日：2021-11-11

申请号：US17268926

申请日：2019-10-29

Applicant: KYB Corporation ,  NIDEC TOSOK CORPORATION

Inventor： Kohei KUBO ,  Tomoyuki FUJITA ,  Koichiro AKATSUKA ,  Yoshiyuki MAKI ,  Koji HIGUCHI ,  Yutaka HASHIMOTO

IPC: F04D29/043 ,  F04D13/06

Abstract: An electric pump provided with a pump unit configured to discharge working oil by being rotationally driven by an electric motor includes: a drive shaft configured to transmit rotational driving force from the electric motor to a rotor of the pump unit; a rotation-detection shaft provided coaxially with the drive shaft, the rotation-detection shaft being configured to be rotated together with the rotor; and a rotation detector unit configured to detect rotation of the rotation-detection shaft. The rotation-detection shaft has: an engagement portion configured to engage with the rotor; and a detection-target portion facing the rotation detector unit, and an outer diameter of the detection-target portion is set so as to be larger than an outer diameter of the engagement portion.

公开(公告)号：US20190072091A1

公开(公告)日：2019-03-07

申请号：US15767215

申请日：2016-09-20

Applicant: KYB Corporation

Inventor： Yoshiyuki MAKI ,  Tomoyuki NAKAGAWA ,  Masamichi SUGIHARA

IPC: F04C15/06 ,  F04C2/344

Abstract: A vane pump includes a rotor that is rotationally driven; vanes inserted into the rotor in a freely slidable manner; pump chambers that are defined between the vanes at adjacent positions; suction ports that guide working oil to the pump chambers; suction pressure chamber that is communicated with the suction ports and that stores the working oil; and a suction passage that is connected to the suction pressure chamber and that has an suction opening end that opens at an outer surface of a pump body. In a state in which the vane pump is mounted, the suction pressure chamber is mounted below the suction opening end of the suction passage.

公开(公告)号：US20180306182A1

公开(公告)日：2018-10-25

申请号：US15763833

申请日：2016-09-02

Applicant: KYB Corporation

Inventor： Yoshiyuki MAKI ,  Tomoyuki FUJITA ,  Tomoyuki NAKAGAWA ,  Masamichi SUGIHARA

IPC: F04C2/344 ,  F01C21/08

CPC classification number: F04C2/344 ,  F01C21/0881 ,  F04C15/00 ,  F04C15/0023

Abstract: A vane pump includes a rotor; a plurality of slits that are formed in the rotor, the plurality of vanes being respectively inserted into the plurality of slits in a slidable manner; a cam ring that has a cam face on which tip-ends of the vanes slide by the rotation of the rotor; and pump chambers that are defined by the rotor, the cam ring, and an adjacent pair of the vanes. The plurality of vanes have a plurality of first vanes that are formed by applying a DLC coating on a base material and second vanes that are formed such that the base material is exposed, the first vanes being respectively inserted into at least two adjacent slits of the plurality of slits.

公开(公告)号：US20180283373A1

公开(公告)日：2018-10-04

申请号：US15758230

申请日：2016-09-08

Applicant: KYB Corporation

Inventor： Masamichi SUGIHARA ,  Tomoyuki NAKAGAWA ,  Yoshiyuki MAKI

IPC: F04C2/344 ,  F04C15/00

Abstract: The cartridge vane pump includes a first connection channel that connects a first discharge port and a first discharge channel and a second connection channel that connects a second discharge port and a second discharge channel. An O-ring is provided on an outer circumference of a circular tube portion, the O-ring blocks communication between the first connection channel and the second connection channel.

公开(公告)号：US20180252212A1

公开(公告)日：2018-09-06

申请号：US15758161

申请日：2016-09-08

Applicant: KYB CORPORATION

Inventor： Yoshiyuki MAKI ,  Masamichi SUGIHARA ,  Tomoyuki NAKAGAWA ,  Koji YOSHIMURA

IPC: F04C2/344 ,  F04C15/06

CPC classification number: F04C2/3446 ,  F04C2/344 ,  F04C15/00 ,  F04C15/0023 ,  F04C15/06 ,  F04C2240/10 ,  F04C2240/20 ,  F04C2250/102 ,  F05B2250/502 ,  F05B2280/1021

Abstract: A cartridge vane pump includes: a body-side side plate that is brought into contact with end surfaces of a rotor and a cam ring; first and second discharge ports that are formed in the body-side side plate; and an adapter that is formed with first and second connection channels for connecting the first and second discharge ports formed in the body-side side plate and first and second discharge channels formed in a body.