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公开(公告)号：US20170176063A1
公开(公告)日：2017-06-22
申请号：US15385668
申请日：2016-12-20
Applicant: Johnson Controls Technology Company
Inventor： Jeb W. Schreiber , Eric H. Albrecht , Kevin F. Krebs , Justin P. Kauffman , Brian L. Stauffer
IPC: F25B39/00
Abstract: Embodiments of the present disclosure relate to a vapor compression system that includes a refrigerant loop, a compressor disposed along the refrigerant loop and configured to circulate refrigerant through the refrigerant loop, a condenser disposed downstream of the compressor along the refrigerant loop, where the condenser includes a plurality of tubes disposed in a shell and a diffusion area configured to enhance thermal energy transfer within the condenser, where the diffusion area is defined by a cavity of the condenser without a tube of the plurality of tubes, and an evaporator disposed downstream of the condenser along the refrigerant loop.
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公开(公告)号：US11162726B2
公开(公告)日：2021-11-02
申请号：US16088790
申请日：2017-03-29
Applicant: Johnson Controls Technology Company
Inventor： Brian Thomas Gallus , Curtis C. Crane , Justin P. Kauffman
Abstract: The present disclosure relates to a sensor disposed in a conduit on a suction side of a compressor, wherein the conduit is configured to convey a fluid and a controller communicatively coupled to the sensor. The controller includes a processor and a memory, the memory is configured to store instructions to be performed by the processor, and the controller is configured to receive one or more indications from the sensor of an amount of power consumed by an active sensor component, determine a presence of liquid in the fluid based at least on the one or more indications, and control a device based on the presence of liquid in the fluid.
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公开(公告)号：US11118799B2
公开(公告)日：2021-09-14
申请号：US14771341
申请日：2014-03-04
Applicant: JOHNSON CONTROLS TECHNOLOGY COMPANY
Inventor： Ian Michael Casper , John R. Schwartz , Rick Van Buren , John Evan Bade , Justin P. Kauffman , Brian Smith , Mark A. Adams , Martin L. Doll, Jr. , Nicholas Staub , Richard W. Nadeau , Matthew J. Shaub , Sean Gao , Christian C. Rudio , Jonathan D. West
Abstract: An outside air handling unit and method for delivering conditioned air to individual heating/cooling zones of a building regardless of whether heating/cooling in needed. The outside air handling unit includes a liquid supply line which is connected to and draws liquid from a chilled supply line of the building.
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公开(公告)号：US11092166B2
公开(公告)日：2021-08-17
申请号：US16510622
申请日：2019-07-12
Applicant: Johnson Controls Technology Company
Inventor： Steven T. Sommer , Jeb W. Schreiber , Justin P. Kauffman , Kurt F. Nenstiel
IPC: F04D29/46 , F04D27/02 , F04D29/058
Abstract: An improved variable geometry diffuser (VGD) mechanism for use with a centrifugal compressor. This VGD mechanism extends substantially completely into the diffuser gap so that the VGD mechanism may be used more fully to control other operational functions. The VGD mechanism may be used to minimize compressor backspin and associated transient loads during compressor shut down by preventing a reverse flow of refrigerant gas through the diffuser gap during compressor shutdown, which is prevented because the diffuser gap is substantially blocked by the full extension of the diffuser ring. During start-up, transient surge and stall also can be effectively eliminated as gas flow through the diffuser gap can be impeded as load and impeller speed increase, thereby alleviating the problems caused by startup loads at low speeds. The VGD mechanism can be used for capacity control as well so as to achieve more effective turndown at low loads.
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公开(公告)号：US20210222925A1
公开(公告)日：2021-07-22
申请号：US17225819
申请日：2021-04-08
Applicant: Johnson Controls Technology Company
Inventor： Jeb W. Schreiber , Eric H. Albrecht , Kevin D. Krebs , Justin P. Kauffman , Brian L. Stauffer , Xiuping Su , Li Wang , Fang Xue
Abstract: Embodiments of the present disclosure relate to a vapor compression system that includes a refrigerant loop, a compressor disposed along the refrigerant loop and configured to circulate refrigerant through the refrigerant loop, a condenser disposed downstream of the compressor along the refrigerant loop and configured to condense vapor refrigerant to liquid refrigerant, a subcooler coupled to the condenser, where the subcooler is external of a shell of the condenser, and where the subcooler is configured to receive the liquid refrigerant from the condenser and to cool the liquid refrigerant to subcooled refrigerant, and an evaporator disposed downstream of the subcooler along the refrigerant loop and configured to evaporate the subcooled refrigerant to the vapor refrigerant.
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Patent Agency Ranking
公开(公告)号：US10378553B2
公开(公告)日：2019-08-13
申请号：US14368330
申请日：2013-11-04
Applicant: JOHNSON CONTROLS TECHNOLOGY COMPANY
Inventor： Steven T. Sommer , Jeb W. Schreiber , Justin P. Kauffman , Kurt F. Nenstiel
IPC: F04D29/46 , F04D27/02 , F04D29/058
Abstract: An improved variable geometry diffuser (VGD) mechanism for use with a centrifugal compressor. This VGD mechanism extends substantially completely into the diffuser gap so that the VGD mechanism may be used more fully to control other operational functions. The VGD mechanism may be used to minimize compressor backspin and associated transient loads during compressor shut down by preventing a reverse flow of refrigerant gas through the diffuser gap during compressor shutdown, which is prevented because the diffuser gap is substantially blocked by the full extension of the diffuser ring. During start-up, transient surge and stall also can be effectively eliminated as gas flow through the diffuser gap can be impeded as load and impeller speed increase, thereby alleviating the problems caused by startup loads at low speeds. The VGD mechanism can be used for capacity control as well so as to achieve more effective turndown at low loads.
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17.发明申请VARIABLE GEOMETRY DIFFUSER HAVING EXTENDED TRAVEL AND CONTROL METHOD THEREOF 审中-公开具有扩展行驶的可变几何扩散器及其控制方法公开(公告)号：US20140328667A1
公开(公告)日：2014-11-06
申请号：US14368330
申请日：2013-11-04
Applicant: Susan J. NENSTIEL , JOHNSON CONTROLS TECHNOLOGY COMPANY
IPC: F04D29/46
CPC classification number: F04D29/464 , F04D27/0253 , F04D29/058 , F05D2250/52
Abstract: An improved variable geometry diffuser (VGD) mechanism for use with a centrifugal compressor. This VGD mechanism extends substantially completely into the diffuser gap so that the VGD mechanism may be used more fully to control other operational functions. The VGD mechanism may be used to minimize compressor backspin and associated transient loads during compressor shut down by preventing a reverse flow of refrigerant gas through the diffuser gap during compressor shutdown, which is prevented because the diffuser gap is substantially blocked by the full extension of the diffuser ring. During start-up, transient surge and stall also can be effectively eliminated as gas flow through the diffuser gap can be impeded as load and impeller speed increase, thereby alleviating the problems caused by startup loads at low speeds. The VGD mechanism can be used for capacity control as well so as to achieve more effective turndown at low loads.
Abstract translation: 用于离心压缩机的改进的可变几何扩散器（VGD）机构。 该VGD机构基本上完全扩展到扩散器间隙中，使得VGD机构可以被更全面地用于控制其他操作功能。 VGD机构可以用于在压缩机关闭期间通过防止制冷剂气体在压缩机关闭期间通过扩散器间隙的反向流动来最小化压缩机关闭期间的压缩机反向旋转和相关联的瞬时负载，这是由于扩散器间隙基本上被 扩散器环。 在启动过程中，瞬时浪涌和失速也可以有效地消除，因为当负载和叶轮速度增加时，通过扩散器间隙的气体流动可能受到阻碍，从而减轻了起动负载在低速下引起的问题。 VGD机构也可以用于容量控制，以便在低负载下实现更有效的调节。
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公开(公告)号：US20210270510A1
公开(公告)日：2021-09-02
申请号：US16805365
申请日：2020-02-28
Applicant: Johnson Controls Technology Company
Inventor： Liming Yang , Thomas M. Seneczko , Curtis C. Crane , Justin P. Kauffman
Abstract: A method of operating a chiller to avoid future surge events, the method comprises applying chiller operating data associated with a chiller as an input to one or more machine learning models; and generating a threshold for a controllable chiller variable to prevent a future chiller surge event from occurring based on an output of the one or more machine learning models, further comprising affecting operation of the chiller based on the threshold to prevent the future chiller surge event from occurring. The method enables automatic control of a chiller to avoid future chiller surge events.
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公开(公告)号：US11079122B2
公开(公告)日：2021-08-03
申请号：US14771325
申请日：2014-03-04
Applicant: JOHNSON CONTROLS TECHNOLOGY COMPANY
Inventor： Ian Michael Casper , Dirck Lyon , Walter E. Doll , John R. Schwartz , Martin Yu , Li Li Mow , Rick Van Buren , Roberto De Paco, Jr. , John Evan Bade , Cesar Serrano , Daniela Bilmanis , Satheesh Kulankara , Justin P. Kauffman , Brian Smith , Mark A. Adams , Martin L. Doll, Jr. , Nicholas Staub , Richard W. Nadeau , William L. Kopko , Chris Paraskevakos , Matthew J. Shaub , Sean Gao , Christian C. Rudio , Mahesh Valiya Naduvath , Jonathan D. West
Abstract: A modular water based heating and cooling system for providing chilled or heated water to terminal devices in a building to heat/cool individual zones in the building. The system includes a flow control device in fluid communication with a riser chilled water supply line, a riser chilled water return line, a riser heated water supply line, and a riser heated water return line. The flow control device includes first control valves and second control valves. Terminal device supply lines extend from the flow control device and are connected to respective first control valves. Terminal device return lines extend from the flow control device and are connected to respective second control valves. The first control valves and the second control valves cooperate to supply required chilled water or heated water through the terminal device supply lines to terminal devices based on the cooling/heating requirements of the terminal devices.
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公开(公告)号：US20190338785A1
公开(公告)日：2019-11-07
申请号：US16510622
申请日：2019-07-12
Applicant: Johnson Controls Technology Company
Abstract: An improved variable geometry diffuser (VGD) mechanism for use with a centrifugal compressor. This VGD mechanism extends substantially completely into the diffuser gap so that the VGD mechanism may be used more fully to control other operational functions. The VGD mechanism may be used to minimize compressor backspin and associated transient loads during compressor shut down by preventing a reverse flow of refrigerant gas through the diffuser gap during compressor shutdown, which is prevented because the diffuser gap is substantially blocked by the full extension of the diffuser ring. During start-up, transient surge and stall also can be effectively eliminated as gas flow through the diffuser gap can be impeded as load and impeller speed increase, thereby alleviating the problems caused by startup loads at low speeds. The VGD mechanism can be used for capacity control as well so as to achieve more effective turndown at low loads.
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