AIR-CONDITIONING APPARATUS
    4.
    发明公开

    公开(公告)号:US20240247824A1

    公开(公告)日:2024-07-25

    申请号:US18564196

    申请日:2022-02-15

    IPC分类号: F24F7/08 F24F13/10 F24F13/30

    CPC分类号: F24F7/08 F24F13/10 F24F13/30

    摘要: An air-conditioning apparatus includes a housing having an outside air port, an air supply port, a return air port, and an exhaust port. The air-conditioning apparatus also includes: an outside air passage to make the outside air port and the air supply port communicate with each other; an exhaust air passage formed in the housing in a separated manner from the outside air passage to make the return air port and the exhaust port communicate with each other; an indoor heat exchanger disposed in the outside air passage; the air-sending device disposed in the outside air passage, and configured to generate an air flow directed toward the room from the outside air port via the air supply port and the air supply duct during operation; and an air supply damper being open during the operation of the air-sending device and being closed during a stop of the air-sending device.

    HEAT-EXCHANGE VENTILATION APPARATUS AND HEAT-EXCHANGE VENTILATION SYSTEM

    公开(公告)号:US20240133577A1

    公开(公告)日:2024-04-25

    申请号:US18548230

    申请日:2021-05-24

    IPC分类号: F24F12/00 F24F7/08 F24F11/00

    摘要: The control unit causes a heater to operate when a temperature of a supply air flow is equal to or lower than a first temperature threshold, the temperature of the supply air flow being measured by an outdoor air temperature sensor while an air supply blower and an exhaust blower are in operation and the heater is stopped; and controls a protective operation mode when a temperature of the supply air flow is equal to or lower than a second temperature threshold, the protective operation mode being a mode in which the air supply blower is intermittently operated or is stopped and the exhaust blower continues operation, the temperature of the supply air flow being measured by the outdoor air temperature sensor after the heater is caused to operate.

    INTEGRATED VENTILATION AND HEAT RECOVERY TERMINAL

    公开(公告)号:US20240117979A1

    公开(公告)日:2024-04-11

    申请号:US18481863

    申请日:2023-10-05

    申请人: Daniel P. McCarty

    发明人: Daniel P. McCarty

    IPC分类号: F24F7/08 F24F3/147 F24F13/02

    摘要: An integrated classroom ventilation and heat recovery terminal can include a housing; a return air inlet for receiving air from an installed environment; a ventilation air outlet for delivering air to an induction displacement neutral wall air terminal unit; an outdoor air inlet for receiving air from outdoors; an exhaust air outlet for discharging exhaust to the outdoors; a heat exchanger for exchanging heat and humidity between air delivered to the return air inlet and air delivered to the outdoor air inlet; a first fan for moving air from the outdoor air inlet, a first side of the heat exchanger, and to the ventilation air outlet; and a second fan for moving air from the return air inlet, a second side of the heat exchanger, and to the exhaust air outlet.

    VENTILATION APPARATUS
    9.
    发明公开

    公开(公告)号:US20240019141A1

    公开(公告)日:2024-01-18

    申请号:US18099818

    申请日:2023-01-20

    IPC分类号: F24F7/08 F24F13/20

    摘要: A ventilation apparatus includes a case including a main case in which an outdoor air inlet and an indoor air outlet are formed on one side and an indoor air inlet and an outdoor air outlet are formed on the other side facing the one side, and a lower case coupled to a lower side of the main case; a ventilation module accommodated in the case and including a total heat exchange element; an evaporator disposed between the ventilation module and the outdoor air outlet; a suction fan module disposed inside the case and having an outlet connected to the outdoor air outlet; an exhaust fan module disposed inside the case and having an outlet connected to the indoor air outlet; a housing accommodating the case and having an open bottom surface; and a shield cover covering the open bottom surface of the housing.

    Building pressure control
    10.
    发明授权

    公开(公告)号:US11781774B2

    公开(公告)日:2023-10-10

    申请号:US16195314

    申请日:2018-11-19

    发明人: Daniel Buchanan

    摘要: The air flow of an HVAC system for a multi-story building B is controlled by optimizing the pressure setpoint at the return air plenum PL-1 used for removing or recirculate air from the building, by measuring a pressure differential between the building B air and atmosphere A air at a sensor location P-2, computing a desired pressure differential between the building B air and atmosphere A air, based upon a computed stack effect pressure that is expected to develop at the sensor location on the building for the current inside and outside air temperature in the absence of mechanical action, and controlling the return air fan and damper D-1 to pressurize the air in at the sensor location to produce the desired pressure differential between the building B air and atmosphere A air at the sensor P-2 location. Air pressure is also controlled between specific rooms and adjacent rooms by control of the conditioned air or return air paths connected thereto.