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公开(公告)号：US11333149B2
公开(公告)日：2022-05-17
申请号：US16635257
申请日：2018-07-25
发明人： Akira Inoue , Junya Tanaka
IPC分类号： F04C18/356 , F04C23/02 , F04C18/332
摘要： A recessed part is provided in a position, in which an upper vane and a lower vane slide, in an outer peripheral part of an intermediate partition plate in a rotary compressor. Double of eccentric amounts in an upper eccentric part and a lower eccentric part of a rotating shaft is 30% or more of entire lengths in a sliding direction of the upper vane and the lower vane respectively. A width W of the recessed part in a circumferential direction of the intermediate partition plate is larger than a thickness T of each of the upper vane and the lower vane. When a depth of the recessed part is D and an entire length of each of the upper vane and the lower vane is L, D≥0.1×L . . . Expression 1 is satisfied.
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2.发明授权公开(公告)号：US10458408B2
公开(公告)日：2019-10-29
申请号：US15537394
申请日：2015-12-11
摘要： In a rotary compressor, a lower end plate cover is formed in a flat plate shape, a lower discharge chamber concave portion is formed in a lower end plate to overlap a lower discharge hole side of a lower discharge valve accommodation concave portion, and the lower discharge chamber concave portion is formed in a fan-like range between a diametrical line passing through a center of a sub-bearing unit and a midpoint of a line segment connecting a center of the lower discharge hole and a center of a lower rivet to each other and a diametrical line opened by a pitch angle 90° in a direction of the lower discharge hole about the center of the sub-bearing unit. At least a portion of a refrigerant path hole overlaps the lower discharge chamber concave portion and is disposed at a position communicating with the lower discharge chamber concave portion.
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公开(公告)号：US10001303B2
公开(公告)日：2018-06-19
申请号：US15155892
申请日：2016-05-16
发明人： Kenshi Ueda , Junya Tanaka , Kenji Komine , Shuhei Hoshino
IPC分类号： F01C21/00 , F03C2/00 , F04C2/344 , F04C15/00 , F04C29/00 , F01C1/344 , F04C18/344 , F25B31/02 , F01C21/08 , F04C18/356 , F25B31/00 , F25B43/00 , F25B47/00
CPC分类号： F25B31/026 , F01C21/08 , F01C21/0881 , F04C18/3564 , F04C2230/21 , F04C2230/91 , F25B31/002 , F25B43/006 , F25B47/003
摘要： A rotary compressor includes a sealed vertical compressor housing, a compressing unit, and a motor. A refrigerant discharging unit is provided at an upper part and a refrigerant intake unit is provided at a lower part side surface in the sealed vertical compressor housing. The compressing unit is disposed on the lower part of the compressor housing, includes an annular cylinder, an end plate including a bearing unit and a discharge valve unit and blocking end portions of the cylinder, an annular piston that engages with an eccentric portion of a rotation axis supported by the bearing unit, revolves along a cylinder inner wall of the cylinder in the cylinder, and forms a cylinder chamber between the cylinder inner wall and the annular piston, and a vane. The motor is disposed on the upper part of the compressor housing, and drives the compressing unit via the rotation axis.
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公开(公告)号：US10712058B2
公开(公告)日：2020-07-14
申请号：US15882324
申请日：2018-01-29
发明人： Shunji Itakura , Ken Horiguchi , Toshiyuki Fuji , Sota Shimada , Kazuya Funada , Kenji Komine , Junya Tanaka
摘要： A rotary compressor includes: a closed upright cylindrical compressor housing including an upper portion provided with a discharge section of refrigerant and a body portion provided with an intake section of the refrigerant; a compression section disposed at a lower part in the compressor housing and configured to compress the refrigerant suctioned by the intake section to discharge the refrigerant from the discharge section; and a motor disposed at an upper part in the compressor housing and configured to drive the compression section. The motor has a rotor disposed on an inner side and a stator disposed on an outer side, the refrigerant is HFO1123 refrigerant or a refrigerant mixture containing the HFO1123 refrigerant, and an inner welded portion formed by welding using flux is provided within a projection area of the rotor at the upper portion of the compressor housing.
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公开(公告)号：US10550843B2
公开(公告)日：2020-02-04
申请号：US15542536
申请日：2015-11-26
IPC分类号： F04C29/12 , F04C29/00 , F04C18/324 , F04C18/356 , F01C21/08 , F04C18/07 , F04C29/04 , F25B1/04 , F04C23/00 , F25B13/00
摘要： A rotary compressor includes a sealed longitudinal compressor housing which is provided with a discharge portion of a refrigerant at an upper portion thereof, is provided with an inlet portion of a refrigerant at a lower portion thereof, and in which lubricant oil is stored; a compressing unit which is disposed in the compressor housing, compresses a refrigerant sucked from the inlet portion and discharges the refrigerant from the discharge portion; a motor which is disposed in the compressor housing and drives the compressing unit via a rotation shaft; and an accumulator which is attached to a side portion of the compressor housing and is connected to the inlet portion of the refrigerant. When an inner diameter of a cylinder constituting the compressing unit is referred to as Dc, a height of the cylinder is referred to as Hc, and an eccentric amount of an eccentric portion of the rotation shaft is referred to as e, Dc, Hc, and e are set so that a value obtained by an expression (e+Hc)·(Dc−e)1/3/(e·Hc)2/3 is less than 4.1.
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公开(公告)号：US10359201B2
公开(公告)日：2019-07-23
申请号：US15882209
申请日：2018-01-29
发明人： Shunji Itakura , Ken Horiguchi , Toshiyuki Fuji , Sota Shimada , Kazuya Funada , Kenji Komine , Junya Tanaka
摘要： A heat exchanger includes: a heat transfer pipe in which refrigerant flows; and a spiral groove formed at an inner peripheral surface of the heat transfer pipe. A height of an inner wall of the groove in a radial direction of the heat transfer pipe is equal to or greater than 0.1 [mm], and when a wetted edge length of the heat transfer pipe is S, an inclination angle between a pipe axis direction of the heat transfer pipe and a longitudinal direction of the groove in a section of the heat transfer pipe parallel with the pipe axis direction is θ, and a length of the heat transfer pipe is L, the inclination angle θ is an acute angle, and a wetted area S×L/cos θ of the heat transfer pipe satisfies S×L/cos θ≥0.5 [m2].
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公开(公告)号：US09890785B2
公开(公告)日：2018-02-13
申请号：US14894317
申请日：2014-01-29
发明人： Junya Tanaka , Kenji Komine
IPC分类号： F04C18/356 , F04C29/02 , F04C29/00 , F04C28/28 , F04C23/00
CPC分类号： F04C18/3564 , F04C23/008 , F04C28/28 , F04C29/0085 , F04C29/02 , F04C2280/02 , F05C2203/0886
摘要： A rotary compressor includes: a vertically-positioned airtight compressor housing having an upper section including a discharge portion of a refrigerant, and a lower section including an inlet unit of the refrigerant and storing lubricant oil; a compressing unit, disposed in the lower section, compressing the refrigerant sucked in via the inlet unit and discharging the refrigerant from the discharge portion; a motor, disposed in the upper section, driving the compressing unit via a rotation shaft; and an accumulator attached to the compressor housing and connected to the inlet unit. Inside the accumulator and/or the compressor housing, silicon dioxide having a crystal structure containing a vacancy with a diameter equal to or less than a diameter of a water molecule or a composite including silicon dioxide having a crystal structure containing a vacancy with a diameter equal to or less than that of the water molecule is placed.
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公开(公告)号：US12031539B2
公开(公告)日：2024-07-09
申请号：US17792899
申请日：2020-09-30
发明人： Ryo Akimoto , Junya Tanaka
IPC分类号： F04C18/356 , F04C23/00 , F04C29/02 , F04C29/12
CPC分类号： F04C29/026 , F04C18/3564 , F04C29/12 , F04C23/001 , F04C2240/804
摘要： A rotary compressor includes a compressor housing that is provided with a refrigerant discharge portion and a refrigerant suction portion, and an accumulator that is fixed to the outer peripheral surface of the compressor housing and connected to the suction portion. The accumulator has a cylindrical body portion, which is formed of a resin material, an upper portion, which is formed of a metal material and closes an upper end of the body portion, and a lower portion, which is formed of a metal material and closes a lower end of the body portion, the upper portion is joined to the upper end of the body portion, and the lower portion is joined to the lower end of the body portion.
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公开(公告)号：US09890786B2
公开(公告)日：2018-02-13
申请号：US14898042
申请日：2014-01-29
发明人： Junya Tanaka , Kenji Komine
IPC分类号： F04C18/356 , F04C29/00 , F01C21/08 , F04C29/12 , C23C8/04 , C23C8/26 , C23C28/04 , F04C23/00
CPC分类号： F04C18/3564 , C23C8/04 , C23C8/26 , C23C28/044 , C23C28/046 , F01C21/0809 , F04C23/001 , F04C23/008 , F04C29/12 , F04C2230/91 , F04C2230/92 , F05C2201/0406 , F05C2201/0409 , F05C2201/0439 , F05C2201/0448 , F05C2201/046 , F05C2201/0466 , F05C2203/0808 , F05C2203/083 , F05C2203/0882 , F05C2253/12
摘要： A rotary compressor includes: a compressing unit that includes an annular cylinder, an end plate, an annular piston which is fit in an eccentric portion of a rotation shaft, and a vane which protrudes from the inside of a vane groove of the cylinder to the inside of an operation chamber, comes into contact with the annular piston, and partitions the operation chamber into an inlet chamber and a compression chamber. The vane is formed of steel and has a diamond-like carbon layer formed on a sliding surface with respect to the annular piston. The annular piston is formed of Ni—Cr—Mo cast iron to which 0.15 wt % to 0.45 wt % of phosphorus is added, or is formed of cast iron or steel and has an iron nitride layer formed on an outer circumferential surface thereof.
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