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公开(公告)号：US20200300000A1
公开(公告)日：2020-09-24
申请号：US16380810
申请日：2019-04-10
Applicant: Johnson Controls Technology Company
Inventor： Karla D. Alvarez Cavazos , Ryan L. Snider , Nicholas P. Mislak
Abstract: Systems and methods are disclosed that operate a door latch of a door of a heating, ventilation, and/or air conditioning (HVAC) system electronically based on operating a locking engagement device. The locking engagement device may be disposed on an outer portion of a door, the latch may be part of a latching system disposed on an inner portion of the door, and the locking engagement device may transmit a signal indicating that the locking engagement device is in an open or closed position to the latching system via a conductor electronically coupling the locking engagement device and the latching system. In some embodiments, the locking engagement device may transmit a signal indicating that the locking engagement device is in an open or closed position to a controller, which may then instruct the latching system to open or close the latch based on receiving the signal.
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公开(公告)号：US20200248923A1
公开(公告)日：2020-08-06
申请号：US16293849
申请日：2019-03-06
Applicant: Johnson Controls Technology Company
Inventor： Ryan L. Snider , Nicholas P. Mislak , Olivier Donfack
Abstract: A control unit is communicatively coupled to multiple variable frequency drives. The control unit includes a controller, and each variable frequency drive may have a respective controller. The controller of the control unit may be communicatively coupled to each variable frequency drive controller and manage and/or configure the multiple variable frequency drives by sending instructions and/or receiving information from the variable frequency drive controllers. In some embodiments, the control unit may be implemented as a part of a mobile computing device, such that the controller may wirelessly and communicatively couple to each variable frequency drive controller. In this manner, managing or changing settings and/or control parameters of multiple variable frequency drives may be performed via a single control unit, avoiding the tedious, repetitive, and inefficient process of using multiple control units.
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公开(公告)号：US10520255B2
公开(公告)日：2019-12-31
申请号：US15614396
申请日：2017-06-05
Applicant: Johnson Controls Technology Company
Inventor： Douglas A. Kester , Nicholas P. Mislak
Abstract: A heat exchanger includes a frame and a plurality of coil passes disposed within the frame. The plurality of coil passes is configured to direct a flow of a refrigerant therethrough to transfer heat with an air flow passing over the heat exchanger. The plurality of coil passes include a U-bend disposed between first and second linear portions of the plurality of coil passes to redirect the refrigerant from a first longitudinal end of the heat exchanger to a second longitudinal end of the heat exchanger. Additionally, a first plurality of fins is disposed on an outer surface the U-bend.
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公开(公告)号：US20190293364A1
公开(公告)日：2019-09-26
申请号：US15968548
申请日：2018-05-01
Applicant: Johnson Controls Technology Company
Inventor： Kevin R. Stockton , Nicholas P. Mislak , Douglas A. Kester , Ryan L. Snider , Stacy S. Lemkelde , Kristen Velez-Diaz
Abstract: The present disclosure relates to a heat exchanger including a tube having a length, and a cross-sectional geometry defined by an inner boundary and an outer boundary extending along the length. The tube is configured to flow a refrigerant fluid within the inner boundary to transfer heat. The cross-sectional geometry varies at respective transition points along the length of the tube. The tube is seamless and undeformed at the transition points.
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公开(公告)号：US20190285348A1
公开(公告)日：2019-09-19
申请号：US15937630
申请日：2018-03-27
Applicant: Johnson Controls Technology Company
Inventor： Ryan L. Snider , Nicholas P. Mislak , Kristen Velez-Diaz , Kevin R. Stockton , Stacy S. Lemkelde , Douglas A. Kester
Abstract: A heat exchanger that includes a plurality of conduits that transmit a refrigerant therethrough. A valve that actuates to fluidly couple a first set of conduits of the plurality of conduits in a first setting and fluidly couple a second set of conduits of the plurality of conduits in a second setting.
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Patent Agency Ranking
公开(公告)号：US20180094841A1
公开(公告)日：2018-04-05
申请号：US15718282
申请日：2017-09-28
Applicant: Johnson Controls Technology Company
Inventor： Douglas A. Kester , Curtis W. Caskey , James K. Spitzer , Chandra Yelamanchili , Nicholas P. Mislak , Rajiv K. Karkhanis
CPC classification number: F25B41/062 , F25B39/00 , F25B39/028 , F25B40/02 , F25B41/067 , F25B43/006 , F25B49/02 , F25B49/022 , F25B2341/062 , F25B2341/0662 , F25B2341/0683 , F25B2400/13 , F25B2500/19 , F25B2600/0253 , F25B2600/2513 , F25B2700/13 , F25B2700/1931 , F25B2700/195 , F25B2700/197 , F25B2700/2115 , F25B2700/21163 , F25B2700/21175
Abstract: A cooling system includes an expansion valve configured to exert a first pressure drop on refrigerant circulated through the cooling system. The cooling system also includes a plurality of capillary expansion tubes fluidly coupled in parallel to an output of the expansion valve and configured to exert a second pressure drop on the refrigerant circulated through the cooling system. The cooling system also includes a controller communicatively coupled to the expansion valve, wherein the controller is configured to control magnitude of the first pressure drop by instructing the expansion valve to adjust the valve position based at least in part on refrigerant mass flow expected to be supplied to the expansion valve to facilitate substantially uniformly distributing the refrigerant mass flow between each of the plurality capillary expansion tubes.
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公开(公告)号：US20180093217A1
公开(公告)日：2018-04-05
申请号：US15611601
申请日：2017-06-01
Applicant: Johnson Controls Technology Company
Inventor： Nicholas P. Mislak
CPC classification number: B01D46/446 , B01D46/008 , B01D46/18 , B01D2279/50
Abstract: A system includes a filter assembly having a filter material disposed in an air flow, a first pressure transducer disposed upstream of the filter material with respect to the air flow, a second pressure transducer disposed downstream of the filter material with respect to the air flow, and a controller coupled to the first pressure transducer and the second pressure transducer, where the controller receives feedback from the first pressure transducer and the second pressure transducer indicative of a pressure differential of the air flow across the filter material, and where the controller is configured to index the filter when the pressure differential of the air flow across the filter material exceeds a threshold.
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公开(公告)号：US11506434B2
公开(公告)日：2022-11-22
申请号：US16670212
申请日：2019-10-31
Applicant: Johnson Controls Technology Company
Inventor： Nicholas P. Mislak
Abstract: A heat exchanger of an HVAC system including an inlet header, an outlet header, and tubes configured to extend between the inlet header and the outlet header. The system also includes a first interchangeable refrigerant distributor segment of the inlet header, where the first interchangeable refrigerant distributor segment includes first orifices configured to fluidly couple with the tubes to facilitate distribution of refrigerant from the inlet header to the tubes in a first configuration. The system also includes a second interchangeable refrigerant distributor segment of the inlet header, where the second interchangeable refrigerant distributor segment includes second orifices configured to fluidly couple with the tubes to facilitate distribution of refrigerant from the inlet header to the tubes in a second configuration. The first orifices include a first characteristic of an orifice cross-sectional internal boundary size or shape, and the second orifices include a second characteristic of the orifice cross-sectional internal boundary size or shape different than the first characteristic.
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公开(公告)号：US11262112B2
公开(公告)日：2022-03-01
申请号：US16700668
申请日：2019-12-02
Applicant: Johnson Controls Technology Company
Inventor： Rajiv K. Karkhanis , Nicholas P. Mislak
IPC: F25B39/04
Abstract: A heating, ventilation, and/or air conditioning (HVAC) system includes an air flow path through which an air flow is routed. The HVAC system also includes a first condenser coil positioned in the air flow path and configured to receive a first portion of a refrigerant from a refrigerant conduit. The HVAC system also includes a second condenser coil positioned in the air flow path downstream from the first condenser coil relative to the air flow, and configured to receive a second portion of the refrigerant from the refrigerant conduit in parallel with the first portion of the refrigerant received by the first condenser coil.
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公开(公告)号：US20210116136A1
公开(公告)日：2021-04-22
申请号：US17069681
申请日：2020-10-13
Applicant: Johnson Controls Technology Company
Inventor： Nicholas P. Mislak , Ryan L. Snider , Karla D. Alvarez Cavazos
Abstract: A heating, ventilation, and/or air conditioning (HVAC) system includes a refrigerant circuit configured to circulate a refrigerant to condition an air flow within an air flow conduit and a reheat system fluidly separate from the refrigerant circuit, wherein the reheat system is configured to utilize a waste fluid from a waste heat source to reheat the air flow conditioned by the refrigerant circuit.
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