公开(公告)号：US10883666B2

公开(公告)日：2021-01-05

申请号：US15613890

申请日：2017-06-05

Applicant: Johnson Controls Technology Company

Inventor： Russell T. Jenks

IPC: F16K11/087 ,  F17D3/00

Abstract: Systems and methods for controlling flow with a 270 degree rotatable valve are provided. A described system includes a valve body having a valve chamber and a plurality of ports into the valve chamber. The plurality of ports include a first port, a second port, and a third port. The first port and the second port are aligned with a common axis and located on opposite sides of the valve chamber. The system further includes a valve member located within the valve chamber. The valve member is controllably rotatable by approximately 270 degrees to modulate fluid flow between the first port and the third port while maintaining the second port completely closed and to modulate fluid flow between the second port and the third port while maintaining the first port completely closed.

公开(公告)号：US20200378517A1

公开(公告)日：2020-12-03

申请号：US16429795

申请日：2019-06-03

Applicant: Johnson Controls Technology Company

Inventor： Kevin Weiss ,  Gary A. Romanowich ,  Stephanie P. Lynn ,  Russell T. Jenks

IPC: F16K31/04

Abstract: An actuator includes a drive device, and energy storage element and an actuator controller. The energy storage element is charged during operation of the actuator using power from an external power source. The drive device drives a valve member to a failsafe setpoint using energy from the energy storage element in the event of a power loss during operation of the actuator. The actuator controller provides a drive signal to the drive device indicating the valve member orientation (i.e. the failsafe setpoint) to which the drive device is to drive the valve member. The failsafe setpoint is determined based on the last fluid source that was controlled by the actuator of the fluid system prior to the power outage.

公开(公告)号：US20200370765A1

公开(公告)日：2020-11-26

申请号：US16513499

申请日：2019-07-16

Applicant: Johnson Controls Technology Company

Inventor： John T. Knight ,  Stephen B. Pickle ,  Norman J. Blanton ,  Kerry L. Shumway

IPC: F24F3/052

Abstract: A heating, ventilation, and/or air conditioning (HVAC) unit includes a first sensor disposed adjacent to an inlet of an evaporator configured to receive an airflow. The HVAC unit includes a second sensor disposed adjacent to an outlet of a reheat coil positioned downstream of the evaporator and configured to expel the airflow. The HVAC unit also includes a controller configured to regulate operation of a modulating reheat valve to adjust flow of a working fluid in thermal communication with the airflow to control a difference between a measurement of the first sensor and a measurement of the second sensor.

公开(公告)号：US10830503B2

公开(公告)日：2020-11-10

申请号：US16433840

申请日：2019-06-06

Applicant: Johnson Controls Technology Company

Inventor： William L. Kopko

IPC: F25B13/00 ,  F25B5/02 ,  F25B40/00 ,  F25B41/00 ,  F25B41/04 ,  F25B49/02

Abstract: The present disclosure relates to a refrigeration system that includes an evaporator disposed along an evaporator line, a compressor system disposed along a compressor line, a condenser disposed along a condenser line and configured to condense the refrigerant compressed by the compressor system to heat a second fluid stream, and an outdoor coil disposed along a coil line and configured to receive the refrigerant from the condenser or from a discharge line, to selectively transfer heat to or from the refrigerant, and to selectively transfer the refrigerant to the evaporator or to a suction line. The refrigeration system includes two valves and three expansion valves disposed along the different refrigerant flow lines, and a controller configured to determine a simultaneous heating/cooling operating mode of the refrigeration system and to control the valves and expansion valves to operate the refrigeration system in the desired mode.

公开(公告)号：US10830473B2

公开(公告)日：2020-11-10

申请号：US15980556

申请日：2018-05-15

Applicant: Johnson Controls Technology Company

Inventor： Andrew M. Boyd

IPC: F24F11/46 ,  F24F11/54 ,  F24F11/56 ,  G01B21/00 ,  F24F11/65 ,  F24F11/74 ,  G05B15/02 ,  F24F11/64 ,  F24F140/50 ,  F24F140/40

Abstract: The techniques described herein provide systems and methods for guiding a user to accurately measure the volume of each room in a zoned HVAC system using a mobile device. An application on the mobile device guides the user in taking photographs of each room from various positions, various angles, or both. After the mobile device has acquired the photographs, stereophotogrammetry may be used with the acquired photographs to determine the volume of each room. A control system may then calculate an appropriate airflow to be provided to each room based on the volume of each room.

公开(公告)号：US10830459B2

公开(公告)日：2020-11-10

申请号：US15985444

申请日：2018-05-21

Applicant: Johnson Controls Technology Company

Inventor： Robert L. Eskew ,  Jeremiah M. Horn ,  Nicholas A. Kauffman ,  Paul Lucas

IPC: F24F1/22 ,  F24F1/58

Abstract: A system includes a coil of an outdoor unit, where tubing forming the coil is configured to circulate a refrigerant therethrough, a fan configured to direct air from within an inner chamber formed by a structure of the coil such that air is in a heat exchange relationship with the refrigerant, a motor located within the inner chamber, where the motor is configured to rotate the fan, a panel coupled to the coil, a fan controller mounted to the panel such that the fan controller is positioned within the inner chamber remote from the fan and the motor, where the fan controller is coupled to the motor, and the fan controller is configured to supply power to the motor to adjust a speed of the fan, and a rain shield disposed over the fan controller and configured to block contaminants from entering a housing of the fan controller.

公开(公告)号：US10829986B2

公开(公告)日：2020-11-10

申请号：US16002844

申请日：2018-06-07

Applicant: Johnson Controls Technology Company

Inventor： John L. McElvany ,  Sriram Ramanujam ,  Uttam Kumar Sharma ,  Curtis A. Trammell

IPC: E06B7/22 ,  F24F13/20 ,  E06B7/23

Abstract: The present disclosure relates to an HVAC system door assembly that includes a door that includes a panel having a first side and a second side opposite the first side, and a first seal circuit. The first seal circuit is disposed on the first side. The HVAC system door assembly also includes a door frame that includes a second seal circuit. HVAC system door assembly further includes a ridge projecting from one of the first seal circuit or the second seal circuit configured to align with and engage a central portion of the other of the first seal circuit or the second seal circuit when the door is in a closed position with respect to the door frame. The ridge includes a cross-sectional profile having a flattened peak section with sloping side sections that extend from boundaries of the flattened peak section to a base of the ridge.

公开(公告)号：US20200348635A1

公开(公告)日：2020-11-05

申请号：US16399751

申请日：2019-04-30

Applicant: Johnson Controls Technology Company

Inventor： Timothy I. Salsbury ,  Kirk H. Drees ,  John M. House ,  Carlos Felipe Alcala Perez

IPC: G05B19/042 ,  G05B19/048

Abstract: Systems and methods for monitoring and controlling a plant using extremum-seeking control. The method includes perturbing a setpoint for a controller by applying a dither signal to the setpoint. The controller uses a perturbed setpoint to generate one or more control inputs for the building equipment. Receiving, from the building equipment, an output signal and obtaining values of a performance variable based on the output signal, the values of the performance variable resulting from operating the building equipment based on the perturbed setpoint. The method includes determining a gradient of the performance variable with respect to the perturbed setpoint and a Hessian of the performance variable affected by the building equipment with respect to the setpoint. The method includes determining an adjustment to the setpoint predicted to drive the performance variable to an extremum based on the gradient and the Hessian of the performance variable.

公开(公告)号：US20200340494A1

公开(公告)日：2020-10-29

申请号：US16397801

申请日：2019-04-29

Applicant: Johnson Controls Technology Company

Inventor： Madhuka M. Jayarathne ,  Hongdan Wang ,  Roy R. Crawford ,  Robert E. Cabrera ,  Paul J. Lucas

IPC: F04D29/44 ,  F04D29/42

Abstract: A centrifugal blower has a first housing section and a second housing section separated by a width of the centrifugal blower. The centrifugal blower also has an intake port extending through the first housing section and the second housing section along the width, and an outlet port formed by the first housing section and the second housing section. A dimension of the width continuously decreases as the outlet port is approached along a length of the centrifugal blower.

公开(公告)号：US10816236B2

公开(公告)日：2020-10-27

申请号：US16000291

申请日：2018-06-05

Applicant: Johnson Controls Technology Company

Inventor： Daniel V. Winders ,  Neelkanth S. Gupte ,  Vilas G. Pawanarkar ,  Kirankumar A. Muley

IPC: F24F11/85 ,  F24F3/14 ,  F24F13/22 ,  F24F11/30

Abstract: Embodiments of the present disclosure relate to a climate management system that includes a condensate pan configured to collect condensate from a first heat exchanger of the climate management system, a pump fluidly coupled to the condensate pan, and a nozzle fluidly coupled to the pump, wherein the nozzle is configured to receive the condensate from the pump and direct the condensate toward an airflow across a second heat exchanger of the climate management system.