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公开(公告)号：US20230130474A1
公开(公告)日：2023-04-27
申请号：US17915389
申请日：2020-10-22
发明人： Takuya TERAMOTO , Hiroyasu HAYASHI , Ryo HORIE , Takashi YAMAGUCHI , Tomohiro NAGANO , Kazuya MICHIKAMI , Takahiro YAMATANI
IPC分类号： F04D29/28 , F24F1/0022 , F04D17/16 , F04D25/06
摘要： An impeller includes: a main plate to be rotated; an annular side plate having a suction port for air; and blades in a circumferential direction. Each of the blades has: an inner peripheral end; an outer peripheral end; a sirocco blade portion that includes the outer peripheral end, and forms a forward-swept blade; and a turbo blade portion that includes the inner peripheral end and forms a swept-back blade. The blade has an end portion facing the suction port and a base portion connected to the main plate, and the end portion has a smaller thickness than that of the base portion in the sirocco blade portion. The end portion of the blade has a blade shape, and in the end portion having the blade shape, a first blade thickness of an inner circumferential side of the impeller is greater than a second blade thickness of the outer circumferential side.
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2.发明公开公开(公告)号：US20240011500A1
公开(公告)日：2024-01-11
申请号：US18453642
申请日：2023-08-22
发明人： Takuya TERAMOTO , Ryo HORIE , Takahiro YAMATANI , Kazuya MICHIKAMI , Hiroshi TSUTSUMI , Keijiro YAMAGUCHI
IPC分类号： F04D29/42
CPC分类号： F04D29/4226 , F04D29/422 , F04D29/441
摘要： A centrifugal air blower includes a fan; and a scroll casing. The scroll casing includes: a sidewall covering the fan from an axial direction of a rotation axis, the sidewall having a suction opening for sucking air; a discharge opening; a tongue portion for guiding the airflow to the discharge opening; a peripheral wall surrounding the fan from a radial direction of the rotation axis; and a bell mouth formed along the suction opening of the sidewall. The bell mouth includes upstream and downstream ends, with the upstream end being an end portion on an upstream side in a direction of flow of the air passing through the suction opening, and the downstream end being an end portion on a downstream side in the direction of flow of the air.
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公开(公告)号：US20220196254A1
公开(公告)日：2022-06-23
申请号：US17603724
申请日：2019-06-13
IPC分类号： F24F1/0022 , F04D29/42
摘要： A centrifugal fan includes: an impeller having a back plate; and a scroll casing including a peripheral wall a first side wall facing a virtual extension of the back plate and an inner end portion of the volute shape of the scroll casing, an expanded portion, and a first edge end portion being an end of a first edge defining the discharge port, of the first side wall, are arranged in a named order in the rotation direction, the first edge end portion being farther from the rotation shaft than an other end of the first edge and distance L1≥distance LM≥distance LS>is satisfied where LS is a distance between the first side wall at the inner end portion of the volute shape and the virtual extension of the back plate, LM is a distance between the first side wall at the expanded portion and the virtual extension of the back plate, the expanded portion being a portion at which the distance between the first side wall and the virtual extension of the back plate is larger than LS, and L1 is a distance between the first side wall at the first edge end portion and the virtual extension of the back plate.
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公开(公告)号：US20220145893A1
公开(公告)日：2022-05-12
申请号：US17438553
申请日：2019-04-25
发明人： Takuya TERAMOTO , Hiroyasu HAYASHI , Ryo HORIE , Kazuya MICHIKAMI , Takahiro YAMATANI , Hiroshi TSUTSUMI
摘要： An impeller includes a backing plate, a rim disposed so as to face the backing plate, and a plurality of blades arranged in a circumferential direction around a virtual rotation axis of the backing plate. Each of the plurality of blades has an inner circumferential end, an outer circumferential end a sirocco blade portion being forward-swept and including the outer circumferential end and having a blade outlet angle of larger than 90 degrees, and a turbo blade portion being swept-back and including the inner circumferential end, a first region located closer to the backing plate than a middle point in an axial direction of the rotation axis, and a second region located closer to the rim than the first region. Each of the plurality of blades is formed such that a blade length in the first region is longer than a blade length in the second region. In the first region and the second region, a ratio of the turbo blade portion in the radial direction is larger than a ratio of the sirocco blade portion in the radial direction.
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公开(公告)号：US20190242612A1
公开(公告)日：2019-08-08
申请号：US16325472
申请日：2017-10-30
发明人： Takuya TERAMOTO , Takashi IKEDA , Yasuaki KATO , Ryo HORIE
IPC分类号： F24F13/08 , F24F1/0025 , F24F1/0033
CPC分类号： F24F13/08 , F24F1/00 , F24F1/0025 , F24F1/0033
摘要： An indoor unit according to the present invention includes: an air-sending portion, which includes a casing having a rectangular air outlet and accommodating an impeller including a plurality of blades; a heat exchanger, which is configured to exchange heat with gas sent from the air-sending portion; and a guide portion, which includes an upper guide defining a passage for the gas and being arranged between an upper edge portion of the air outlet and an upper end portion of the heat exchanger and a lower guide defining a passage for the gas and being arranged between a lower edge portion of the air outlet and a lower end portion of the heat exchanger, and is open at side regions of the guide portion.
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公开(公告)号：US20240026896A1
公开(公告)日：2024-01-25
申请号：US18044599
申请日：2020-10-22
发明人： Takuya TERAMOTO , Hiroyasu HAYASHI , Ryo HORIE , Yoshitaka AKARI , Takashi YAMAGUCHI , Kazuya MICHIKAMI , Takahiro YAMATANI
CPC分类号： F04D29/281 , F04D17/162 , F04D29/30 , F04D29/424
摘要： A centrifugal air-sending device has blades that each have a vane length in a first region that is greater than a vane length in a second region and have a portion at which a proportion for which a turbo vane portion accounts is higher in a radial direction than a proportion for which a sirocco vane portion accounts in the first region and the second region. The blades that are located closer to an outer circumference than is an inner circumferential side end portion of a bell mouth that is located closest to an inner circumference in the radial direction is defined as a blade outer circumferential portion that is formed such that the proportion for which the sirocco vane portion accounts is higher in the radial direction than or equal to the proportion for which the turbo vane portion accounts in the first region and the second region.
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公开(公告)号：US20230323892A1
公开(公告)日：2023-10-12
申请号：US18044091
申请日：2020-10-22
发明人： Takuya TERAMOTO , Hiroyasu HAYASHI , Ryo HORIE , Yoshitaka AKARI , Takashi YAMAGUCHI , Kazuya MICHIKAMI , Takahiro YAMATANI , Masahiko TAKAGI , Kazuki WATANABE , Hidetoshi SEKI
IPC分类号： F04D29/30 , F24F1/0022 , F04D29/42 , F04D29/58 , F04D17/08
CPC分类号： F04D29/30 , F24F1/0022 , F04D17/08 , F04D29/582 , F04D29/4206
摘要： A centrifugal air-sending device has blades that each have a vane length in a first region that is greater than a vane length in a second region, and are each formed such that a proportion for which a turbo vane portion accounts is higher in a radial direction than a proportion for which a sirocco vane portion accounts in the first region and the second region. The blades that are located closer to an outer circumference than is a blade inner diameter of inner circumferential ends of the blades at end portions of the blades that are close to a side plate in an axial direction are defined as a blade outer circumferential portion that is formed such that a vane thickness of each of the blades in decreased in the radial direction from an inner circumference toward the outer circumference.
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公开(公告)号：US20220106968A1
公开(公告)日：2022-04-07
申请号：US17551438
申请日：2021-12-15
发明人： Takuya TERAMOTO , Ryo HORIE , Takahiro YAMATANI , Kazuya MICHIKAMI , Hiroshi TSUTSUMI , Keijiro YAMAGUCHI
IPC分类号： F04D29/42 , F04D29/44 , F24F1/0022
摘要： A centrifugal air blower comprises a fan (2); and a scroll casing (4). The scroll casing includes: a sidewall (4c) covering the fan (2) from an axial direction of a rotation axis on which the fan (2) rotates, the side wall having a suction opening for sucking air; a discharge opening (41) for discharging an airflow generated by the fan (2); a tongue portion (4b) for guiding the airflow to the discharge opening (41); a peripheral wall (4a) surrounding the fan (2) from a radial direction of the rotation axis; and a bell mouth (3) formed along the suction opening (5) of the sidewall (4c). The bell mouth (3) includes an upstream end (3a) and a downstream end (3b), the upstream end being an end portion on an upstream side in a direction of flow of the air passing through the suction opening (5), the downstream end being an end portion on a downstream side in the direction of flow of the air. A distance in the radial direction of the rotation shaft between the upstream end (3a) and the downstream end (3b) at a location larger than the tongue portion (4b) in angle of a direction of rotation of the fan (2) is longer than a distance in the radial direction between the upstream end (3a) and the downstream (3b) end at a location adjacent to the tongue portion (4b).
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公开(公告)号：US20210372411A1
公开(公告)日：2021-12-02
申请号：US17288319
申请日：2018-10-30
发明人： Takuya TERAMOTO , Hiroyasu HAYASHI , Atsushi KONO , Ryo HORIE , Kazuya MICHIKAMI , Takahiro YAMATANI , Hiroshi TSUTSUMI
IPC分类号： F04D17/10 , F04D29/58 , F24F1/0022
摘要： A turbo fan includes a main plate rotationally driven, and a plurality of blade portions arranged at intervals in a circumferential direction on the main plate. The plurality of blade portions include a plurality of first blade portions arranged on one of plate surfaces of the main plate, and a plurality of second blade portions arranged on another plate surface of the main plate. In a case where, in each of the plurality of first blade portions, a length of a virtual straight line connecting a first inner peripheral end part positioned on a rotary shaft side in a radial direction of the main plate and a first outer peripheral end part positioned on an outer edge side of the main plate is defined as a first chord length, and in each of the plurality of second blade portions, a length of a virtual straight line connecting a second inner peripheral end part positioned on the rotary shaft side in the radial direction of the main plate and a second outer peripheral end part positioned on the outer edge side of the main plate is defined as a second chord length, the first chord length and the second chord length are not equal to each other at positions separated by a same distance from the main plate in the axial direction of the rotary shaft.
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10.发明申请公开(公告)号：US20220412372A1
公开(公告)日：2022-12-29
申请号：US17899236
申请日：2022-08-30
发明人： Takuya TERAMOTO , Ryo HORIE , Takahiro YAMATANI , Kazuya MICHIKAMI , Hiroshi TSUTSUMI , Keijiro YAMAGUCHI
IPC分类号： F04D29/42
摘要： A centrifugal air blower comprises a fan; and a scroll casing. The scroll casing includes: a sidewall covering the fan from an axial direction of a rotation axis on which the fan rotates, the side wall having a suction opening for sucking air; a discharge opening for discharging an airflow generated by the fan; a tongue portion for guiding the airflow to the discharge opening; a peripheral wall surrounding the fan from a radial direction of the rotation axis; and a bell mouth formed along the suction opening of the sidewall. The bell mouth includes an upstream end and a downstream end, the upstream end being an end portion on an upstream side in a direction of flow of the air passing through the suction opening, the downstream end being an end portion on a downstream side in the direction of flow of the air.
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