公开(公告)号：US20240361032A1

公开(公告)日：2024-10-31

申请号：US18308833

申请日：2023-04-28

Applicant: Emerson Electric Co.

Inventor： James D. Fultz

IPC: F24F11/65

CPC classification number: F24F11/65 ,  F24F2110/12 ,  F24F2110/20

Abstract: A method of conditioning air within an enclosed space using an HVAC system includes controlling, by a controller, the HVAC system to cool the air within an enclosed space in response to a command from a thermostat that monitors a temperature in the enclosed space. The controller receives a humidity reading from the humidity sensor and determines whether to operate at improved cooling efficiency or at improved dehumidification efficiency based at least in part on the humidity reading. The controller determines an operating speed for the blower to achieve the determined operation at improved cooling efficiency or operation at improved dehumidification efficiency and continues to control the HVAC system to condition the air within the enclosed space including operating the blower at the determined operating speed.

公开(公告)号：US20240353134A1

公开(公告)日：2024-10-24

申请号：US18627437

申请日：2024-04-04

Applicant: Carrier Corporation

Inventor： Alex Raj Arulanandan

IPC: F24F11/49 ,  F24F11/52 ,  F24F11/57 ,  F24F11/65 ,  F24F11/80 ,  F24F11/88 ,  F24F120/20

CPC classification number: F24F11/49 ,  F24F11/52 ,  F24F11/57 ,  F24F11/65 ,  F24F11/88 ,  F24F11/80 ,  F24F2120/20 ,  F24F2221/54

Abstract: A system to control indoor air quality (IAQ) at zones of an area of interest (AOI) is disclosed. The system comprises one or more HVAC devices configured with one or more zones of the AOI, one or more electronic locks configured with a door of the one or more zones, and one or more IAQ sensing devices provided at the one or more zones, wherein the one or more sensing devices are configured to communicatively couple with the one or more electronic locks, and the one or more HVAC devices, and wherein each of the electronic locks is configured to track position and motion of the sensing device that is assigned to the zone where the corresponding electronic lock is installed; and generate an alert signal when the sensing device assigned to any of the one or more zones is detected to be out of the corresponding zone.

公开(公告)号：US20240344733A1

公开(公告)日：2024-10-17

申请号：US18633680

申请日：2024-04-12

Applicant: Alliance for Sustainable Energy, LLC

Inventor： Conor J. DENNEHY SOSEBEE

IPC: F24F11/65 ,  F24F7/08 ,  F24F11/00 ,  F24F110/12 ,  F24F110/22 ,  G05D23/19

CPC classification number: F24F11/65 ,  F24F7/08 ,  F24F11/0001 ,  G05D23/1951 ,  F24F2011/0002 ,  F24F2110/12 ,  F24F2110/22 ,  F24F2221/34

Abstract: A modulating preheating device (MPD) for a building energy recovery ventilation (ERV) system which can modulate its heating based on the conditions of both the building return air and the intake air is described. The MPD is an add-on module for ERV units utilizing a heat exchanger core which can preheat intake air when necessary to reduce frost formation. The preheating can be modulated using a controller.

公开(公告)号：US20240328671A1

公开(公告)日：2024-10-03

申请号：US18251168

申请日：2021-03-10

Applicant: Mitsubishi Electric Corporation

Inventor： Shogo TAMAKI

IPC: F24H15/10 ,  F24F11/50 ,  F24F11/65 ,  F24H15/238

CPC classification number: F24H15/10 ,  F24F11/50 ,  F24F11/65 ,  F24H15/238

Abstract: A multi-split type air-conditioning device includes an indoor hot water unit, an indoor air unit, and an outdoor unit to which the indoor hot water unit and the indoor air unit are connected. The outdoor unit includes an outdoor unit-control unit configured to control a refrigerant circuit and transmits control commands for the indoor hot water unit and the indoor air unit via transmission signal lines. The outdoor unit-control unit executes an indoor hot water unit-determination process of causing the refrigerant circuit to perform a heating operation, and determining the branch port to which the indoor hot water unit is connected and an indoor air unit-determination process of causing the refrigerant circuit to perform a cooling operation, and determining a connection relationship between the branch port to which the indoor air unit is connected and the indoor air unit.

公开(公告)号：US20240318845A1

公开(公告)日：2024-09-26

申请号：US18610929

申请日：2024-03-20

Applicant: Tyco Fire & Security GmbH

Inventor： Jonathan D. Douglas ,  Brennan H. Fentzlaff ,  Bernard P. Clement

IPC: F24F8/22 ,  F24F8/10 ,  F24F8/24 ,  F24F11/46 ,  F24F11/64 ,  F24F11/65 ,  F24F11/70 ,  F24F110/66

CPC classification number: F24F8/22 ,  F24F8/10 ,  F24F8/24 ,  F24F11/46 ,  F24F11/64 ,  F24F11/65 ,  F24F11/70 ,  F24F2110/66

Abstract: A disinfection system for controlling an indoor environment of a building. The disinfection system includes a disinfection device configured to detect pathogens in the indoor environment and performing disinfection procedures on the air and surfaces. The disinfection system further includes a controller configured to receive, from a treated space in the indoor environment, sensor data from the disinfection device or a sensor indicating an amount of a deactivated pathogen. The controller further configured to determine the amount of the deactivated pathogen corresponds to a deactivation ratio or deactivation percentage of active to deactivated pathogens in the treated space. The controller further configured to adjust the one or more disinfection procedures based on the deactivation ratio or the deactivation percentage of the amount of the deactivated pathogen and a pathogen type, wherein adjusting the one or more disinfection procedures comprises adjusting an operational parameter of the disinfection device.

公开(公告)号：US12078374B2

公开(公告)日：2024-09-03

申请号：US17654342

申请日：2022-03-10

Applicant: Lennox Industries Inc.

Inventor： Rohini Brahme

IPC: F24F11/65

CPC classification number: F24F11/65

Abstract: An HVAC system is configured to regulate a temperature of a space. The HVAC system includes a single-stage compressor configured to compress a refrigerant used to cool air provided to the space and a controller communicatively coupled to the single-stage compressor. The controller determines that a demand response time period is starting at a start time. After determining that the demand response time period is starting at the start time, an operation schedule is determined indicating alternating portions of the demand response period during which the single-stage compressor is to be turned off and turned on. At or after the start time of the demand response time period, the controller begins operating the single-stage compressor according to the determined operation schedule.

公开(公告)号：US12078366B2

公开(公告)日：2024-09-03

申请号：US18328627

申请日：2023-06-02

Applicant: Lennox Industries Inc.

Inventor： Sridhar Venkatesh ,  Payam Delgoshaei ,  Janathkumar Manohararaj

IPC: F24F11/30 ,  F24F11/64 ,  F24F11/65 ,  G05B13/02 ,  G05B13/04 ,  F24F120/12 ,  F24F130/10 ,  F24F140/50 ,  F24F140/60

CPC classification number: F24F11/30 ,  F24F11/64 ,  F24F11/65 ,  G05B13/0265 ,  G05B13/048 ,  F24F2120/12 ,  F24F2130/10 ,  F24F2140/50 ,  F24F2140/60

Abstract: A heating, ventilation, and air conditioning (HVAC) control device is configured to record a plurality of actual occupancy statuses, to determine a plurality of corresponding predicted occupancy statuses, and to compare the plurality of predicted occupancy statuses to the plurality of actual occupancy statuses. The device is further configured to identify conflicting occupancy statuses based on the comparison. A conflicting occupancy status indicates a difference between an actual occupancy status and a corresponding predicted occupancy status. The device is further configured to identify timestamps corresponding with the conflicting occupancy statuses, to identify historical occupancy statuses corresponding with the identified timestamps, and to update the conflicting occupancy statuses in the predicted occupancy schedule with the historical occupancy statuses.

公开(公告)号：US12072118B2

公开(公告)日：2024-08-27

申请号：US17584415

申请日：2022-01-26

Applicant: Carl Freudenberg KG

Inventor： Uwe Haefner ,  Sascha Blauth ,  Maik Sieh

IPC: F24F11/65 ,  B60H1/24 ,  F24F7/003 ,  F24F7/06 ,  F24F8/10 ,  F24F11/526 ,  F24F13/10 ,  B60H3/06 ,  F24F11/00 ,  F24F120/10 ,  F24F130/00

CPC classification number: F24F11/65 ,  B60H1/24 ,  F24F7/003 ,  F24F7/06 ,  F24F8/10 ,  F24F11/526 ,  F24F13/10 ,  B60H3/0608 ,  F24F2011/0002 ,  F24F2120/10 ,  F24F2130/00

Abstract: The invention relates to a method for operating a ventilation system for indoor air in an indoor space, in particular a motor vehicle. The method comprises the steps of: providing a fresh air portion of supplied fresh air and a recirculated air volume flow according to a predetermined or selected operating strategy; determining settings for a recirculated air actuator for adjusting a fresh air portion, in particular a recirculated air flap or a recirculated air valve, and a fan power of a fan for adjusting a mixed air volume flow (QM) of supplied recirculated and fresh air; increasing the fresh air portion and/or the mixed air volume flow (QM) as a function of a pathogen filtration efficiency of a cabin filter and a predetermined contamination prevention volume flow as a pathogenic indoor concentration limit value (CP) for a maximum concentration of pathogenic aerosols.

公开(公告)号：US20240263826A1

公开(公告)日：2024-08-08

申请号：US18638848

申请日：2024-04-18

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Takeru MIYAZAKI ,  Yoshiki YAMANOI ,  Yuta IYOSHI ,  Kumiko SAEKI

IPC: F24F11/65 ,  F24F12/00 ,  F24F110/10 ,  F24F120/10

CPC classification number: F24F11/65 ,  F24F12/001 ,  F24F2110/10 ,  F24F2120/10

Abstract: A ventilation system 1 includes: a refrigerant circuit 60; an air supply fan 22 that draws outdoor air into an indoor space through a first heat exchanger 12 of the refrigerant circuit 60; an exhaust fan 42 that exhausts indoor air to an outdoor space through a second heat exchanger 32 of the refrigerant circuit 60; a temperature sensor 24 for detecting a blow-out temperature TS of the air supply fan 22; a monitoring sensor 80 for detecting indoor state information CT; and a control unit CU that adjusts indoor ventilation rate. The types of control modes performed by the control unit CU include a first mode and a second mode described below. First mode: A control mode having higher weighting on the state information CT, among the state information CT and the blow-out temperature TS that are usable for adjusting the indoor ventilation rate. Second mode: A control mode having higher weighting on the blow-out temperature TS, among the state information CT and the blow-out temperature TS that are usable for adjusting the indoor ventilation rate.

公开(公告)号：US20240247830A1

公开(公告)日：2024-07-25

申请号：US18158163

申请日：2023-01-23

Applicant: Lennox Industries Inc.

Inventor： Surendran Ramasamy ,  Sanjeev Hingorani ,  Thomas John Wolowicz ,  Harsh Patel

IPC: F24F11/39 ,  F24F11/64 ,  F24F11/65 ,  F24F11/89

CPC classification number: F24F11/39 ,  F24F11/64 ,  F24F11/65 ,  F24F11/89 ,  F24F2110/64

Abstract: A controller is configured to operate a heating, ventilation, and air conditioning (HVAC) system based on a first plurality of particulate matter measurements and a second plurality of particulate matter measurements. The controller is configured to determine an air filter efficiency for an air filter based on the received first plurality of particulate matter measurements and the received second plurality of particulate matter measurements. The controller is further configured to determine if a quantity of particulate matter in an airflow exceeds a first threshold value based on the received second plurality of particulate matter measurements. In response to determining that the quantity of particulate matter in the airflow does exceed the first threshold value, the controller is configured to transmit a notification indicating an action to inspect the air filter.