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公开(公告)号：US20210095664A1
公开(公告)日：2021-04-01
申请号：US16611982
申请日：2018-04-25
Applicant: KYB Corporation
Inventor： Masamichi SUGIHARA
Abstract: A cartridge vane pump includes a rotor, a plurality of vanes, a cam ring, a side member brought into contact with a first end surface of the cam ring, a cover member brought into contact with a second end surface of the cam ring, the cover member being attached to the body, and a linkage member provided to extend between the side member and the cover member over an outer circumferential surface of the cam ring, the linkage member being configured to link the side member and the cover member.
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公开(公告)号：US20210003129A1
公开(公告)日：2021-01-07
申请号：US16612243
申请日：2018-04-24
Applicant: KYB Corporation
Inventor： Hirotoshi KONDOU , Masamichi SUGIHARA
Abstract: A cartridge vane pump includes: a side plate brought into contact with first end surfaces of the rotor and the cam ring; a cover brought into contact with second end surfaces of the rotor and the cam ring, the cover attached to the body; and an O-ring provided in an outer circumference of the side plate, the O-ring being configured to seal a gap between the outer circumference of the side plate and an inner circumference of the body. The side plate has: a first flange portion configured to restrict movement of the O-ring towards the rotor side; a second flange portion configured to restrict movement of the O-ring towards an opposite side from the rotor. The first flange portion is formed to be able to compress the O-ring with the body in an axial direction of the driving shaft.
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公开(公告)号：US20170067462A1
公开(公告)日：2017-03-09
申请号：US15123029
申请日：2015-03-04
Applicant: KYB CORPORATION
Inventor： Masamichi SUGIHARA , Tomoyuki FUJITA , Tomoyuki NAKAGAWA , Tsutomu KOMIYA
CPC classification number: F04C2/3448 , F01C21/0809 , F01C21/0854 , F01C21/0863 , F01C21/10 , F01C21/108 , F04C2/3446 , F04C15/00 , F04C2230/603 , F04C2240/10 , F04C2240/20
Abstract: A vane pump includes a rotor; a plurality of vanes; a cam ring; and a pump body having an accommodating concave portion accommodating the cam ring. The cam ring includes a ring fitting portions formed in a plurality of regions on an outer circumference and a ring small-diameter portions formed on the outer circumference so as to have an outer diameter smaller than those of the ring fitting portions. The accommodating concave portion has a body fitting portion to which the ring fitting portions is fitted and a body large-diameter portions formed on the inner circumference in a plurality of regions so as to have an inner diameter lager than that of the body fitting portions.
Abstract translation: 叶片泵包括转子; 多个叶片; 凸轮环 以及具有容纳所述凸轮环的容纳凹部的泵体。 凸轮环包括形成在外周上的多个区域中的环形装配部分和形成在外周上的环形小直径部分，以具有比环形装配部分的外径小的外径。 容纳凹部具有配合环状配合部的主体嵌合部和形成在多个区域的内周上的主体大径部，其内径比主体嵌合部的内径大。
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公开(公告)号：US20220170459A1
公开(公告)日：2022-06-02
申请号：US17600566
申请日：2020-03-16
Applicant: KYB Corporation
Inventor： Masamichi SUGIHARA
IPC: F04C2/344
Abstract: A vane pump includes: pump chambers formed by a rotor, a cam ring, and vanes; a first suction port that guides working fluid guided by a suction passage to the pump chambers; a second suction port that guides the working fluid guided from the suction passage through a communication passage to the pump chambers; and a return passage to which excessive fluid of the working fluid discharged from the pump chambers is guided. The return passage has: a body-internal passage through which the excessive fluid flows along an axis direction at an outer side of the cam ring in a radial direction; and a turning passage that reverses the excessive fluid guided through the body-internal passage towards the second suction port.
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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.
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Patent Agency Ranking
公开(公告)号：US20220010795A1
公开(公告)日：2022-01-13
申请号：US17283668
申请日：2019-10-29
Applicant: KYB Corporation
Inventor： Yusuke OHMORI , Tomoyuki NAKAGAWA , Masamichi SUGIHARA , Atsumi TAKAHASHI , Satoshi WATANABE
IPC: F04C2/067
Abstract: A vane pump includes: a rotor; vanes freely slidably received in the rotor; a cam ring having a cam face with which the vanes come into sliding contact; a side member having a sliding contact surface with which side surfaces of the rotor and the vanes come into sliding contact; pump chambers; and a discharge port configured to guide working fluid discharged from the pump chambers. The side member has a guide surface that is provided on an end portion side of the opening portion, the guide surface being configured to push the end portions of the vanes upward and guide them toward the sliding contact surface of the side member as the rotor is rotated in the reverse rotation direction.
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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
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.
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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
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.
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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
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.
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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
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.
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