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公开(公告)号：US20240287904A1
公开(公告)日：2024-08-29
申请号：US18175147
申请日：2023-02-27
Applicant: Emerson Climate Technologies, Inc.
CPC classification number: F01C21/02 , F04C18/0215 , F04C29/0028 , F04C29/0057 , F04C29/0071 , F04C29/0078 , F16C3/023 , F16C3/18 , F16C9/00 , F04C2240/30 , F04C2240/40 , F04C2240/56 , F04C2240/60 , F04C2240/807 , F04D29/66 , F16C2226/50
Abstract: A driveshaft assembly for a compressor includes an unloader assembly and a driveshaft. The unloader assembly includes an unloader and a counterweight. The unloader assembly is rotationally supported by a bearing. The unloader includes a flank surface that is slidably engaged with a flank surface on the driveshaft.
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公开(公告)号：US20240280102A1
公开(公告)日：2024-08-22
申请号：US18171833
申请日：2023-02-21
Applicant: Hanon Systems
Inventor： Pete Ganster , Bradley Vernon Crenshaw , Steven J. Koester
CPC classification number: F04C15/068 , F04C18/0215 , F04C18/0261 , F04C28/26 , F04D27/0238 , F04D29/66
Abstract: A scroll compressor including a compression mechanism assembled with a valve assembly disposed in a housing. The compression mechanism including a fixed scroll and an orbit scroll. The fixed scroll includes a recessed pocket having a first indentation with a first injection port and a second indentation with a second injection port. A double reed structure of the valve assembly is disposed in the recessed pocket of the fixed scroll. The double reed structure includes a first reed configured to selectively permit a flow of a fluid through the first injection port and a second reed configured to selectively permit a flow of a fluid through the second injection port. The valve assembly further includes a valve member disposed adjacent the reed structure and a valve gasket disposed between the valve member and a portion of the housing.
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公开(公告)号：US11905959B2
公开(公告)日：2024-02-20
申请号：US16614891
申请日：2017-08-04
Applicant: Mitsubishi Electric Corporation
Inventor： Kazuchika Tsuchida
IPC: F04D25/06 , A47K10/48 , F04D25/16 , F04D29/043 , F04D29/046 , F04D29/52 , F04D29/66
CPC classification number: F04D25/06 , A47K10/48 , F04D25/166 , F04D29/043 , F04D29/046 , F04D29/522 , F04D29/66
Abstract: An electric blower includes a motor, a fan to generate a first air current, a fan to generate a second air current, and a housing. The first air current and the second air current are exhausted from the housing in opposite directions to each other in the axial direction.
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公开(公告)号：US11781798B2
公开(公告)日：2023-10-10
申请号：US16792609
申请日：2020-02-17
Applicant: Trane International Inc.
Inventor： Arvind Chitrala , Don A. Schuster , Thomas Reed , Percy F. Wang
IPC: F25B13/00 , F25B41/20 , F04B39/00 , F04D29/60 , F04D29/66 , F25B17/00 , F25D23/00 , F16K47/00 , F16F7/00
CPC classification number: F25D23/006 , F04B39/0027 , F04B39/0044 , F04D29/60 , F04D29/66 , F04D29/668 , F16F7/00 , F16K47/01 , F25B13/00 , F25B17/00 , F25B41/20 , F04B2201/0802 , F04C2270/12 , F16F2230/22
Abstract: Embodiments of vibration damping clips for use within a climate control system are disclosed. In an embodiment, a vibration damping clip is engaged with three fluid lines of an outdoor unit of the climate control system, such as, for instance, a suction line of a compressor of the climate control system, a discharge line of the compressor, and a fluid line coupled to a pressure equalization valve (PEV) within the outdoor unit.
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公开(公告)号：US11754084B2
公开(公告)日：2023-09-12
申请号：US16805975
申请日：2020-03-02
Applicant: MINEBEA MITSUMI Inc.
Inventor： Masato Aoki , Yuji Omura , Takahiro Suzuki
CPC classification number: F04D27/004 , F04D25/06 , H02P29/045 , F04B49/065 , F04B2203/0201 , F04B2203/0209 , F04B2203/0211 , F04D29/66
Abstract: A motor drive control device has a control circuit that generates a drive control signal for controlling a rotational speed of a motor based on a speed command signal indicating a target rotational speed of the motor, and a motor driving unit that drives the motor based on the drive control signal. The control circuit performs speed feedback control for generating the drive control signal so that the rotational speed of the motor coincides with the target rotational speed when the target rotational speed is lower than a rotational speed threshold value, and generates the drive control signal based on a relationship between current flowing through the motor and a reference current value when the target rotational speed is higher than the rotational speed threshold value.
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Patent Agency Ranking
公开(公告)号：US20190242396A1
公开(公告)日：2019-08-08
申请号：US16320472
申请日：2017-06-08
Applicant: DENSO CORPORATION , SOKEN, INC.
Inventor： Fumiya ISHII , Shuzo ODA , Masanori YASUDA
CPC classification number: F04D29/281 , F04D17/08 , F04D29/28 , F04D29/30 , F04D29/66 , F04D29/666
Abstract: A centrifugal blower includes an outer rotor, and a turbo fan. The turbo fan includes blades, an other end plate, and a cylinder portion. The cylinder portion is located inside the other end plate, and is fixed to the outer rotor. A surface of the outer rotor configures a rotor guide surface that guides an air flow toward a channel provided between adjacent blades. Each blade has a leading edge side portion located radially inside the cylinder portion. An outer end portion of the rotor guide surface in the radial direction is located at the same position in the axial direction as a one side cylinder end portion of the cylinder portion in the axial direction, in a state where a rotor contact portion of the outer rotor and a blade contact portion of the leading edge side portion are in contact with each other.
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公开(公告)号：US20190242220A1
公开(公告)日：2019-08-08
申请号：US16341951
申请日：2016-12-02
Applicant: Halliburton Energy Services, Inc.
Inventor： Stanley Vernon Stephenson , Kenneth Ray Coffman
CPC classification number: E21B41/0092 , E21B41/00 , F02D25/00 , F02D29/04 , F02D29/06 , F02D2200/025 , F02D2200/701 , F04D29/66
Abstract: A method for reducing noise produced by well operations includes obtaining a list of equipment performing the well operations in an open-air environment. The method further includes obtaining a mapping between engine rotations-per-minute (“RPM”), load, and noise produced by a combination of the equipment. The method further includes selecting a set point comprising gear number and engine speed, respectively for each engine, that minimizes the noise produced for the combination of the equipment based on the mapping. The method further includes adjusting each engine driving the well operations to operate at the respective set point.
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公开(公告)号：US20180355884A1
公开(公告)日：2018-12-13
申请号：US15579803
申请日：2016-05-10
Applicant: Mitsubishi Electric Corporation
Inventor： Kenichi SAKODA , Tomoya FUKUI , Masayuki OISHI
CPC classification number: F04D29/384 , F04D29/325 , F04D29/38 , F04D29/66 , F04D29/663 , F04D29/681 , F05D2240/303 , F05D2250/12
Abstract: A fan includes an impeller including a boss serving as a center of rotation and a plurality of blades provided on an outer circumferential surface of the boss, and a structure member installed on an upstream side of the impeller in an airflow direction. The plurality of blades each have a plurality of recesses disposed only on a side of a suction surface of a leading edge. The plurality of recesses each have a rectangular shape having two longitudinal sides. Consequently, it is possible to reduce fluctuations of lift on the plurality of blades and thereby reduce discrete frequency noise.
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公开(公告)号：US20180355882A1
公开(公告)日：2018-12-13
申请号：US15777006
申请日：2016-10-20
Applicant: DENSO CORPORATION
Inventor： Fumiya ISHII , Shuzo ODA
CPC classification number: F04D29/281 , F04D17/16 , F04D25/06 , F04D29/626 , F04D29/66 , F04D29/681
Abstract: A fan main body member of a turbofan has multiple blades disposed around a fan axial center, a shroud ring coupled to each of the blades, and a fan hub portion coupled to each of the blades on a side opposite from the shroud ring. An other end side plate of the turbofan is joined to each of the other side blade end portions of the blade in a state of being fitted to the radially outer side of the fan hub portion. A fitting gap between the other end side plate and the fan hub portion is formed such that an outflow velocity of air when air passes through the fitting gap and outflows is reduced as compared to when air passes through a virtual reference gap that corresponds to the fitting gap and outflows.
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公开(公告)号：US09568016B2
公开(公告)日：2017-02-14
申请号：US14255147
申请日：2014-04-17
Applicant: Dresser-Rand Company
Inventor： Michael J. Crowley , Andrew J. Ranz , Byron L. Mohr
CPC classification number: F04D29/2261 , F04D29/284 , F04D29/584 , F04D29/588 , F04D29/66
Abstract: An impeller may include a hub section, a plurality of blades, and a shroud. The hub section may be mounted on a rotatable shaft. The hub section may define a central opening for the rotatable shaft to extend therethrough and may define a plurality of holes disposed in a circular manner about the central opening. The plurality of blades may be connected to or integral with the hub section. The shroud may be connected to or integral with the hub section and the plurality of blades. The plurality of holes may be either through holes or partially drilled holes. A bottom of some or all of the partially drilled holes may be flat, conical, or rounded. Some or all of the partially drilled holes may have one or more bleed holes that may permit quenching material to flow therethrough and prevent the quenching material from stagnating therein.
Abstract translation: 叶轮可以包括轮毂部分，多个叶片和护罩。 轮毂部分可以安装在可旋转的轴上。 毂部分可以限定用于可旋转轴的中心开口以延伸穿过其中并且可限定围绕中心开口以圆形方式设置的多个孔。 多个叶片可以连接到或与毂部分一体。 护罩可以连接到毂部分和多个叶片上或与其一体。 多个孔可以是通孔或部分钻孔。 部分或全部部分钻孔的底部可以是平的，圆锥形的或圆形的。 部分或全部部分钻孔可以具有一个或多个排放孔，其可以允许淬火材料流过其中并防止淬火材料停滞在其中。
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