356 patents
Utility
Compressor Staging Control Architecture for Hot Gas Reheat Systems
4 Jan 24
A method is provided for controlling a heating, ventilation, and air conditioning (HVAC) system.
Joel A. Willhite, Qianghua Q. Zhou, Wei Luo, Chad Daniel Bowers, Min Kevin Liang, Justen Grubb, Lane A. Liudahl
Filed: 30 Jun 23
Utility
Suction Gas Heat Exchanger Control and Utilization
4 Jan 24
A heating, ventilation, air conditioning, and refrigeration (HVACR) system includes a suction heat exchanger configured to add heat to working fluid prior to entering the compressor, so as to support the generation of superheat by the HVACR system.
Thibaut Gerson, Raphael Gury, Jon P. Hartfield, Laurent Maire Richard, Patrick Alexandre, Sebastien Montemont, Thierry Choffe
Filed: 30 Jun 22
Utility
Transport Refrigeration System with CO2 Scrubber
28 Dec 23
A transport refrigeration system (TRS) for an enclosed space of a transport unit that includes a ventilation pathway to direct air to flow from the enclosed space.
Yogesh Pandit, Zubin Varghese
Filed: 22 Jun 22
Utility
Climate Control System with Improved Leak Detector
28 Dec 23
Examples of the present disclosure relate to climate control systems and air handler units with improved leak detection, along with method for installing these systems.
Daren Lee Epperson, Leslie Lynn Zinger, Henry Traver Berry, Chad Daniel Bowers, Lane A. Liudahl, Jeffrey L. Stewart, Timothy Schmitt
Filed: 24 Jun 22
Utility
Reduced Motor Magnetic Losses Via Reduction of Temporal Harmonics by Control of DC Link Voltage
28 Dec 23
An apparatus and method for reducing motor magnetic losses via reduction of temporal harmonics by control of a direct current (DC) link voltage.
Benjamin Sykora, Seth M. McGill
Filed: 24 Jun 22
Utility
Push/Pull Furnace and Methods Related Thereto
21 Dec 23
Example furnaces and methods related thereto include a burner box including at least one burner configured to combust a fuel/air mixture.
Timothy J. Tupa, Justen William Grubb, Caleb R. Joiner, William James Teising, Stephen Kowalski, Gary L. Wright
Filed: 1 Sep 23
Utility
Sound Attenuation for Hvac Devices
21 Dec 23
Example embodiments of the present disclosure relate to improved HVAC devices and kits for HVAC devices that improve the sound attenuation associated with the device, particularly low-frequency noise.
Yogesh Pandit, Richard L. Jameson, Zubin Varghese, John Bailey, Lance Lindenburg, Thomas Gort, Shiva Prasad Keralapura Basavaraju, Kevin Joseph Ligi, Chris Fuller, Curtis Mitchell
Filed: 27 Jun 23
Utility
Transport Climate Control Remote Management
14 Dec 23
A method of remotely managing a transport climate control system (TCCS) includes a remote management device receiving performance data from the TCCS.
David J. Renken, Tony Spetz, Matthew Srnec, Mark D. Leasure
Filed: 24 Aug 23
Utility
Evaporator Charge Management and Method for Controlling the Same
7 Dec 23
An evaporator includes a housing having a first end longitudinally opposing a second end.
Justin D. Piggush
Filed: 3 Jun 22
Utility
Heat Exchanger Design for Climate Control System
7 Dec 23
Example embodiments of the present disclosure relate to a climate control system and methods for controlling the system.
Raymond Walter Rite
Filed: 3 Jun 22
Utility
Systems and Methods for Grid Appliances
7 Dec 23
Embodiments of systems and methods for power demand management are described herein.
Michael Sean Day, Matthew M. Corulli, Stephen A. Kujak, Ronald Maurice Cosby
Filed: 2 Mar 23
Utility
Time-based Pulldown and Pullup Using Trajectory Tracking and Box Parameter Learning
30 Nov 23
Control systems for time-based pulldown and/or pull-up operation of transport climate control systems include a controller receiving a time for pulldown or pull-up, with the controller modeling the conditioned space and determining a trajectory for efficiently completing the pulldown or pull-up according to the received time.
Quinn Morrison
Filed: 31 May 22
Utility
Refrigerant Compressor with Wear Sleeve and Lubricant Blends for Handling Debris-laden Fluids
30 Nov 23
A compressor including a housing, a shaft configured to be rotated relative to the housing to compress a refrigerant, a motor configured to drive the shaft, a lubrication system configured to supply lubricant to the compressor, and a bearing configured to support the shaft.
Michael T. Siegersma, Daniel A. Strange, Russell T. Abbott, Todd W. Smith, Elyse M. Sorenson, Morgan Elizabeth Herried Leehey, Curtis E. Everson, Mohammad Akram
Filed: 31 May 23
Utility
Refrigerant Compressor with Wear Sleeve and Lubricant Blends for Handling Debris-laden Fluids
30 Nov 23
A compressor including a housing, a shaft configured to be rotated relative to the housing to compress a refrigerant, a motor configured to drive the shaft, a lubrication system configured to supply lubricant to the compressor, and a bearing configured to support the shaft.
Michael T. Siegersma, Daniel A. Strange, Russell T. Abbott, Todd W. Smith, Elyse M. Sorenson, Morgan Elizabeth Herried Leehey, Curtis E. Everson, Mohammad Akram
Filed: 31 May 22
Utility
Systems and Methods for Modeling of Chiller Efficiency and Determination of Efficiency-based Staging
23 Nov 23
Multi-compressor chiller systems can be efficiently operated by determining real time efficiency curves for the compressors currently in operation, along with any compressors that may be added to address demand, and using these efficiency curves to determine changes to compressor operation to improve efficiency in meeting chiller demand.
Brian A. Kirkman, Lee R. Cline
Filed: 25 Apr 23
Utility
Calibrating Compressor Bearing Systems
16 Nov 23
Re-calibrating a bearing system of a compressor includes analyzing environmental data pertaining to a compressor to detect occurrence of a calibration threshold event, and re-calibrating the bearing system based on the detected calibration threshold event by controlling placement of a shaft relative to the bearing system of the compressor.
Matthew David Omernik, Joseph M. Heger
Filed: 12 May 22
Utility
Method and System for Controlling Airflow Volume and Flow Direction from a Remote Heat Exchanger Unit of a Transport Climate Control System
16 Nov 23
Airflow volume and/or direction from configurable remote heat exchanger unit of a transport climate control system providing climate control within a climate controlled space of a transport unit may be variably controlled based on sensor data.
Praveena Alangar SUBRAHMANYA, Grant Mies NIEHAUS, Yirong JIANG, Thomas W. KAMPF, Eamonn T MEE
Filed: 20 Apr 23
Utility
Dehumidifying Air Handling Unit and Desiccant Wheel Therefor
16 Nov 23
A dehumidifying air handling unit for an HVACR system includes a housing, a desiccant wheel, and a cooling heat exchanger.
Yogesh Pandit, Ronnie R. Moffitt, Zubin Varghese, Jeyaprakash Gurusamy
Filed: 27 Feb 23
Utility
Method and System of Providing Variable Sound Control of a Transport Climate Control System
9 Nov 23
Methods and systems for controlling noise generated by a transport climate control system (TCCS) that provides climate control within a climate controlled space of a transport unit are disclosed.
Panayu Robert Srichai, Michael James Vanous, Adam Leonard Clark, Ferdy Martinus, Scott R Bates
Filed: 3 May 23
Utility
Heat Exchange System and Method of Operating the Same
2 Nov 23
There is disclosed a heat exchange system for providing cooling by circulating a coolant, the heat exchange system comprising: a supply circuit for circulating the coolant comprising: a coolant supply heat exchanger for rejecting heat from the coolant to provide a supply of chilled coolant and a supply pump for circulating the coolant in the coolant supply circuit; a load circuit for circulating the coolant, comprising: a cooling load heat exchanger configured to transfer heat to the coolant and a load pump for circulating the coolant in the load circuit; a mixing device which is configured to form part of each of the supply circuit and the load circuit; and a valve arrangement configured to control a mix of (i) coolant from the supply circuit and (ii) recirculated coolant from the load circuit, in a coolant flow provided to the cooling load heat exchanger.
Pavel HOUDEK, Jiri DOUDA
Filed: 27 Apr 23