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公开(公告)号：US20200256347A1
公开(公告)日：2020-08-13
申请号：US16783369
申请日：2020-02-06
Applicant: Emerson Climate Technologies, Inc.
Inventor： Jacob A. Groshek , Michael M. Perevozchikov
IPC: F04D29/057 , F04D17/10 , F16C17/02 , F16C17/24
Abstract: A foil bearing assembly includes a cylindrical body that defines a cooling fluid passage between a radial outer surface and a radial inner surface of the cylindrical body. The foil bearing assembly includes a foil bearing retained within the cylindrical body and in thermal communication with the radial inner surface of the cylindrical body. The foil bearing assembly is connectable to a bearing housing such that intake and outlet ports of the foil bearing assembly are connected in fluid communication with a coolant inlet passage and a coolant outlet passage defined by the bearing housing. The foil bearing assembly is interchangeable with a second foil bearing assembly having at least one of a cooling fluid passage, a foil bearing, and a cylindrical body inner diameter different than the corresponding cooling fluid passage, the foil bearing, and the cylindrical body inner diameter of the first foil bearing assembly.
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公开(公告)号：US10302340B2
公开(公告)日：2019-05-28
申请号：US15065522
申请日：2016-03-09
Applicant: Emerson Climate Technologies, Inc.
Inventor： Jacob A. Groshek
Abstract: A lubricant management system is provided. The lubricant management system may include a compressor, at least one sensor, and a controller. The compressor may include a lubricant sump, a driveshaft, and a bearing assembly. The compressor may circulate a refrigerant. The lubricant sump may be configured for containing a lubricant. The bearing assembly may be supported by the driveshaft. The at least one sensor may be configured to determine at least one operating condition of the compressor. The controller may be in communication with the at least one sensor to receive the at least one operating condition. The controller may be configured to determine a lubricant film thickness from the at least one operating condition and compare the lubricant film thickness to a threshold lubricant film thickness.
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公开(公告)号：US10240840B2
公开(公告)日：2019-03-26
申请号：US15848063
申请日：2017-12-20
Applicant: Emerson Climate Technologies, Inc.
Inventor： Jacob A. Groshek
Abstract: Systems and methods for scroll unloading detection are provided and include a scroll compressor having a scroll compression mechanism. A controller determines a predicted discharge temperature of the scroll compressor, receives an actual discharge temperature of the scroll compressor, and compares the predicted discharge temperature with the actual discharge temperature. The controller also compares a speed of the scroll compressor with a speed threshold and detects unloading of the scroll compression mechanism based on the comparison of the predicted discharge temperature with the actual discharge temperature and based on the comparison of the speed of the scroll compressor with the speed threshold. The controller performs at least one of generating an alert and a remediating action in response to detecting the unloading of the scroll compression mechanism.
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Patent Agency Ranking
公开(公告)号：US11236648B2
公开(公告)日：2022-02-01
申请号：US16252035
申请日：2019-01-18
Applicant: Emerson Climate Technologies, Inc.
Inventor： Jacob A. Groshek
Abstract: A system may include a compressor, a first passageway, a valve and a control module. The compressor includes a compression mechanism operable to compress a working fluid. The first passageway is in fluid communication with an oil sump of the compressor and the compression mechanism. The valve is disposed along the first passageway and movable between an open position allowing lubricant from the oil sump to flow to the compression mechanism and a closed position restricting lubricant from the oil sump from flowing to the compression mechanism. The control module is in communication with the valve and configured to move the valve between the closed position and the open position based on an operating parameter indicative of a temperature of the compression mechanism.
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公开(公告)号：US10436226B2
公开(公告)日：2019-10-08
申请号：US15413984
申请日：2017-01-24
Applicant: Emerson Climate Technologies, Inc.
Inventor： Jacob A. Groshek
Abstract: A climate-control system may include a compressor and a control module. The compressor includes a motor driving a compression mechanism to compress a working fluid. The control module is in communication with the motor and may be configured to determine a balance speed of the motor at which a forward-rotational inertial force of the compression mechanism is equal to a backward-rotational gas force on the compression mechanism. The control module may be configured to adjust a running speed of the motor to the balance speed after receipt of a compressor-shutdown-command and before shutting down the compressor.
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公开(公告)号：US10571177B2
公开(公告)日：2020-02-25
申请号：US16363341
申请日：2019-03-25
Applicant: Emerson Climate Technologies, Inc.
Inventor： Jacob A. Groshek
Abstract: Systems and methods for compressor unloading detection are provided and include a compressor having a compression mechanism. A controller determines a predicted discharge temperature of the compressor, receives an actual discharge temperature of the compressor, and compares the predicted discharge temperature with the actual discharge temperature. The controller also compares a speed of the compressor with a speed threshold and detects unloading of the compression mechanism based on the comparison of the predicted discharge temperature with the actual discharge temperature and based on the comparison of the speed of the compressor with the speed threshold. The controller performs at least one of generating an alert and a remediating action in response to detecting the unloading of the compression mechanism.
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公开(公告)号：US10240838B2
公开(公告)日：2019-03-26
申请号：US14837991
申请日：2015-08-27
Applicant: Emerson Climate Technologies, Inc.
Inventor： Wayne M. Penn, II , Jacob A. Groshek , Simon David Hart
Abstract: A drive controller for a motor of a compressor includes a drive circuit that applies voltages to windings of the motor. The drive controller includes a speed control module that controls the drive circuit to rotate the motor at a requested speed. The drive controller includes a speed determination module that generates the requested speed. The drive controller includes a defrost module that enables a defrost mode in response to a defrost command. While the defrost mode is enabled, the defrost module causes the speed determination module to (i) ramp the requested speed down from a speed demand to a defrost speed and (ii) maintain the requested speed at the defrost speed for a predetermined period of time.
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公开(公告)号：US09476626B2
公开(公告)日：2016-10-25
申请号：US14838071
申请日：2015-08-27
Applicant: Emerson Climate Technologies, Inc.
Inventor： Wayne M. Penn, II , Jacob A. Groshek , Simon David Hart
CPC classification number: F25B49/025 , F25B49/022 , F25B2600/021 , F25B2700/195 , F25B2700/197 , H02P21/18 , H02P27/08 , H02P29/024 , H02P29/0241 , H02P29/028 , H02P29/032 , Y02B30/741
Abstract: A drive controller for a motor of a compressor includes a drive circuit that applies voltages to windings of the motor. A speed control module controls the drive circuit to rotate the motor at a requested speed. A speed determination module generates the requested speed based on a speed demand from a system controller. A lost rotor control module identifies a lost rotor condition and, in response to identifying the lost rotor condition, instructs the speed determination module to set the requested speed to an override speed that is lower than the speed demand. The lost rotor control module identifies the lost rotor condition in response to a comparison of a speed error with an adaptive threshold. The speed error is based on a difference between requested and estimated speeds of the motor. During first and second system states, the adaptive threshold is set to first and second thresholds, respectively.
Abstract translation: 用于压缩机电动机的驱动控制器包括向电动机的绕组施加电压的驱动电路。 速度控制模块控制驱动电路以所需速度旋转电动机。 速度确定模块基于来自系统控制器的速度需求产生所请求的速度。 丢失的转子控制模块识别转子损失状况，并且响应于识别转子损失状况，指示速度确定模块将所请求的速度设置为低于速度要求的超驰速度。 丢失的转子控制模块响应于速度误差与自适应阈值的比较来识别转子损失状况。 速度误差基于电机的请求速度和估计速度之间的差异。 在第一和第二系统状态期间，自适应阈值分别被设置为第一和第二阈值。
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