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公开(公告)号：US20230272872A1
公开(公告)日：2023-08-31
申请号：US18171791
申请日：2023-02-21
Inventor： Yuki Yamamoto , Hiroyuki Miyata , Masahiro Kobayashi
IPC: F16L51/02
CPC classification number: F16L51/025
Abstract: An expansion joint of the present disclosure includes: a first flange disposed outside a pipe; a second flange disposed outside the pipe and is disposed away from the first flange in an axial direction of the joint; a main bellows connected to the first and second flanges and in which a flow passage of a fluid is formed; and a balancing device connected to the first and second flanges outside the main bellows and applies a thrust force opposite to a thrust force, applied to the first and second flanges in the axial direction by the main bellows, to the first and second flanges, wherein the balancing device includes a fluid supply unit, an elastic portion connected to the fluid supply unit and is allowed to expand and contract in the axial direction, and a connection portion connecting the elastic portion to the first and second flanges.
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公开(公告)号：US11512706B2
公开(公告)日：2022-11-29
申请号：US17647643
申请日：2022-01-11
Inventor： Hiroyuki Miyata , Masahiro Kobayashi
Abstract: A geared compressor includes a plurality of compression units and a compression-unit-driving mechanism which drives the plurality of compression units. The compression-unit-driving mechanism includes a plurality of driven gears which are provided in respective rotation shafts of the plurality of compression units and a plurality of large-diameter gears which are directly or indirectly driven by a drive source and have outer diameters larger than those of the plurality of driven gears. The plurality of large-diameter gears is arranged side by side in a horizontal direction and each of the plurality of large-diameter gears meshes with two or more of the plurality of driven gears.
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公开(公告)号：US11448237B2
公开(公告)日：2022-09-20
申请号：US16780100
申请日：2020-02-03
Inventor： Hiroyuki Miyata , Masahiro Kobayashi , Akihiro Nakaniwa
Abstract: A compressor 1 includes a casing 2 that covers a rotating shaft 4 and an impeller 6 and is provided with a diffuser 66 for guiding the working fluid discharged from the impeller 6 to an outside in a radial direction, a heat exchanger 71 that is cools at least a portion of the working fluid compressed by the impeller 6, a cooling fluid supplying unit 7 that supplies the working fluid cooled by the heat exchanger 71 into the casing 2 as a cooling fluid for cooling a motor 5 disposed in the casing 2, and a cooling fluid circulating unit 8 that discharges the cooling fluid that has passed through the motor 5 to an outside of the casing 2, and supplies the discharged cooling fluid downstream of an outlet 6o of a first impeller 6A and upstream of the diffuser 66.
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公开(公告)号：US20220268500A1
公开(公告)日：2022-08-25
申请号：US17647803
申请日：2022-01-12
Inventor： Hiroyuki Miyata , Masahiro Kobayashi , Masayuki Fujii
IPC: F25B41/40
Abstract: A compressor system includes a first pipe including a first pipe main body that forms a flow path therein and a first flange that projects from the first pipe main body to an outer peripheral side, and a second pipe including a second pipe main body that forms a flow path therein and a second flange that projects from the second pipe main body to an outer peripheral side and faces the first flange, a bellows provided so as to surround an entire circumference between the first flange and the second flange, and an excitation force reducing portion provided to separate the flow path and the bellows in a space between the first flange and the second flange and formed of a stretchable porous material.
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公开(公告)号：US20210262482A1
公开(公告)日：2021-08-26
申请号：US17160554
申请日：2021-01-28
Inventor： Hiroyuki Miyata , Masahiro Kobayashi
IPC: F04D29/10 , F04D25/06 , F04D29/053
Abstract: A rotary machine includes a plurality of shafts that extend in an axial direction, in which an axis extends, around the axis, are disposed such that at least parts of positions in the axial direction of the plurality of shafts overlap each other, and are rotatable relative to each other around the axis; a plurality of seal members that are disposed at intervals in the axial direction to seal gaps between the plurality of shafts in a radial direction with respect to the axis; and a seal gas supply unit configured to supply a seal gas from outside to a space surrounded by the plurality of shafts and the plurality of seal members.
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Patent Agency Ranking
公开(公告)号：US10975936B2
公开(公告)日：2021-04-13
申请号：US16307119
申请日：2017-06-15
Inventor： Yoshiyuki Okamoto , Masahiro Kobayashi
Abstract: A variable-speed accelerator includes: an electric device that generates a rotational driving force; and a planetary gear transmission device that changes a speed of the rotational driving force to a constant-speed input shaft and a variable-speed input shaft, and transmits the rotational driving force to a driving target via an output shaft, wherein the electric device includes a constant-speed electric motor including a constant-speed rotor that rotates the constant-speed input shaft in a second direction, and a variable-speed electric motor that includes a variable-speed rotor connected to the variable-speed input shaft, which functions as a generator in a generator mode and as an electric motor in an electric motor mode, and which rotates the output shaft at a maximum rotational speed by rotating the variable-speed rotor at the maximum rotational speed in a first direction.
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公开(公告)号：US10760497B2
公开(公告)日：2020-09-01
申请号：US15551999
申请日：2015-02-23
Inventor： Masahiro Kobayashi , Yasushi Mori
Abstract: Provided is a gas turbine starting device which has a sun gear, a planetary carrier, an internal gear, and a planetary gear, the sun gear, the planetary carrier and the internal gear serving as rotating bodies rotating about an axis; and a variable speed power source which has a rotor connected to one of the rotating bodies in the planetary gear mechanism. A rotating shaft of the gas turbine is connected to one of the rotating bodies other than the rotating body to which the variable speed power source is connected, and the rotating shaft of the compressor is connected to the remaining one of the rotating bodies other than the rotating bodies to which the rotor of the variable speed power source and the rotating shaft of the gas turbine are connected.
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公开(公告)号：US20200256432A1
公开(公告)日：2020-08-13
申请号：US16314823
申请日：2016-08-29
Inventor： Yoshiyuki Okamoto , Masahiro Kobayashi
Abstract: The present invention provides a variable-speed speed-up gear including an electric driving device (50) that generates a rotational driving force, and a planetary gear transmission device (10) that changes the speed of the rotational driving force generated by the electric driving device (50) and transmit the changed rotation driving force to a driving target, wherein a sun gear shaft (12) forms an output shaft (Ao) connected to the driving target, an internal gear carrier shaft (37) configures a constant-speed input shaft (Ac), and a planetary gear carrier shaft (27) configures a variable-speed input shaft (Av), the electric driving device (50) includes a constant-speed motor (51) having a constant-speed rotor (52) which is configured to rotate a constant-speed input shaft of the transmission device, and a variable-speed motor (71) having a variable-speed rotor (72) which is configured to rotate the variable-speed input shaft of the transmission device, the variable-speed rotor (72) and the planetary gear carrier shaft (27) have a shaft insertion hole (74) which is formed in a cylindrical shape around the axis and passes therethrough in the axial direction, and the constant-speed rotor (52) is inserted through the shaft insertion hole (74) and has an inertia body (3) which is configured to rotate in conjunction with the output shaft (Ao).
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公开(公告)号：US20190186600A1
公开(公告)日：2019-06-20
申请号：US16099619
申请日：2016-11-17
Inventor： Hiroyuki Miyata , Masahiro Kobayashi , Yasushi Mori , Yoshiyuki Okamoto
IPC: F16H3/72 , F16D25/061 , H02K7/108 , H02K7/116 , H02K9/06
Abstract: A variable-speed speed increaser includes: an electric driving device that generates a rotational driving force; and a transmission device that changes the speed of the rotational driving force generated by the electric driving device and transmits the changed rotation driving force to a driving target. The transmission device includes: a sun gear; a sun gear shaft fixed to the sun gear; a planetary gear that meshes with the sun gear; an internal gear; a planetary gear carrier that has a planetary gear carrier shaft; and an internal gear carrier that has an internal gear carrier shaft. The electric driving device includes: a constant-speed motor that has a constant-speed rotor; and a variable-speed motor that has a variable-speed rotor. The internal gear carrier includes a clutch mechanism that connects a cylindrical portion connected to the internal gear with the internal gear carrier shaft.
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公开(公告)号：US11614201B2
公开(公告)日：2023-03-28
申请号：US16855295
申请日：2020-04-22
Inventor： Takuya Watanabe , Jun Nagashima , Masahiro Kobayashi
Abstract: A lubricating oil tank includes: a tank casing having an introduction part into which lubricating oil is introduced and a discharge part through which the lubricating oil is discharged; a plurality of receiving parts which are disposed between the introduction part and the discharge part in the tank casing and which is configured to receive the lubricating oil introduced from the introduction part: and a lubricating oil delivery part which is configured to deliver the lubricating oil from one of the plurality of receiving parts to another one of the plurality of receiving parts between the plurality of receiving parts.
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