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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 2571. Отображено 100.
23-02-2012 дата публикации

Wireless sensors system and method of using same

Номер: US20120046792A1
Автор: Russell P. Secor
Принадлежит: Secor Russell P

An apparatus, system, and methods for measuring environmental parameters are disclosed. The apparatus, system, and methods can be used for a variety of applications, including HVAC air balancing and building commissioning. The system includes a variety of wireless sensing modules and wearable modules for control, display, and storage. Parameters measured include air and water temperature, pressure, velocity, and flow. Also included are sensors for light intensity, CO concentrations, and CO2 concentrations.

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Номер записи: 1
08-03-2012 дата публикации

Overpressure-based System to protect vertical evacuation routes against smoke infiltration

Номер: US20120058717A1
Автор: Grzegorz Sypek, Jarosław Wiche, Marek Maj, Robert Zapała
Принадлежит: SMAY Sp z oo

The present Invention relates to an overpressure-based system applied to protect vertical evacuation routes against smoke infiltration, that can be used in the objects such as hospitals or laboratories, where it is necessary to accurately maintain the pressure difference between two zones on a preset level, characterised in that the system's controlling & working unit 14 is connected with the upper fan's frequency converter 19 through the upper fan's controller 15 , and, next, through the reversible upper fan 4 , and this system's unit is also connected with the upper fan's frequency converter 20 through the lower fan's controller 16 . and, next, with the reversible lower fan 5.

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Номер записи: 2
11-10-2012 дата публикации

Combination Pressure and Temperature Sensor for Simultaneous Temperature and Pressure Analyzing in HVAC Ducts

Номер: US20120255851A1
Автор: Clark Donnell Freeman
Принадлежит: Individual

The present invention is a dual temperature and pressure switch that simultaneously monitors both the duct static pressure and temperature within HVAC ducts. The present invention comprises a differential pressure switch and a temperature probe. The differential pressure switch is triggered if the duct static pressure becomes greater than a prescribed level. A pressure switch diaphragm translates within the differential pressure housing according to the difference of static pressure and atmospheric pressure. The prescribed level is set by an adjustment screw and calibration spring. Each the static pressure probe and the temperature probe traverse through the sensor housing into an HVAC duct to which it is installed. Each the differential pressure switch and temperature probe are electrically connected to a control system through a terminal block. The present invention can include an analog pressure transmitter to analyze the current duct static pressure.

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Номер записи: 3
27-01-2022 дата публикации

HVAC UNIT FAN CONTROL SYSTEMS AND METHODS

Номер: US20220026099A1
Автор: Garg Karan, McElvany John L., Parapurath Monangat Naushad, Patil Gaurav S.
Принадлежит:

The present disclosure relates to a heating, ventilating, and air conditioning (HVAC) unit configured to supply conditioned air to a conditioned space. The HVAC unit includes a first exhaust fan capable of operating at variable speeds and a second constant-speed fan. The HVAC unit also includes a controller configured to determine a target airflow to be provided to the conditioned space, cause actuation of the first exhaust fan at a variable fan speed when the target airflow is greater than zero, and cause actuation of the second exhaust fan when the target airflow is greater than an airflow threshold. 126-. (canceled)27. A heating , ventilating , and air conditioning (HVAC) system , comprising:a variable-speed exhaust fan configured to discharge air from the HVAC system;a constant-speed exhaust fan configured to discharge air from the HVAC system; and receive data from a pressure sensor indicative of an air pressure within a conditioned space serviced by the HVAC system;', 'receive an air pressure setpoint associated with the conditioned space; and', 'modulate the variable-speed exhaust fan and control supply of electrical power to constant-speed exhaust fan based on a difference between the air pressure and the air pressure setpoint., 'a controller configured to28. The HVAC system of claim 27 , wherein the controller is configured to modulate the variable-speed exhaust fan and interrupt the supply of electrical power to the constant-speed exhaust fan based on a determination that the air pressure deviates from the air pressure setpoint by a first amount.29. The HVAC system of claim 28 , wherein the controller is configured to modulate the variable-speed exhaust fan and enable the supply of electrical power to the constant-speed exhaust fan based on a determination that the air pressure deviates from the air pressure setpoint by a second amount claim 28 , wherein the second amount is greater than the first amount.30. The HVAC system of claim 27 , comprising a ...

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Номер записи: 4
10-01-2019 дата публикации

Pest Repelling Device

Номер: US20190011144A1
Автор: Connell Raymond
Принадлежит:

Apparatus and associated methods relate to a pest repelling magnetic field generating device (PRD) having a temperature sensor to detect the temperature of a solenoid coil during operation. The detected temperature to be used to ensure that the PRD operates within an ideal temperature range. Additionally, a fan is oriented within a housing of the PRD to force the flow of air from inside a housing of the PRD to outside a housing the PRD. In an illustrative example, the PRD may shut off if the temperature of the solenoid coil moves outside the ideal temperature range. By operating the PRD within an ideal temperature range, the service life of the PRD may be extended. Further, the fan may mitigate dust collection within the housing of the pest repelling magnetic field generating device. 1. A computer program product (CPP) tangibly embodied in a storage device , the CPP including operations that , when executed by a processor , cause the processor to perform operation to send or receive user status or commands information to or from at least one pest repelling magnetic field generating device , the operations comprising:receive, from a user, commands for operation of the at least one pest repelling magnetic field generating device, wherein the at least one pest repelling magnetic field generating device comprises a fan oriented to force air to flow through at least one aperture of the pest magnetic field generating device from an inside of the pest magnetic field generating device to the outside of the pest magnetic field generating device;transmit, via a remote server, the received commands to the at least one pest repelling magnetic field generating device; and,receive, via a temperature sensor of the at least one pest repelling magnetic field generation device, status information concerning a temperature of a solenoid coil disposed within the pest magnetic field generating device.2. The CPP of claim 1 , wherein the received commands comprise operations to effect a ...

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Номер записи: 5
24-01-2019 дата публикации

INTELLIGENT CONTROL METHOD FOR AIR CONDITION DEVICE

Номер: US20190022567A1
Автор: CHAN Ping-Chieh, HSIEH Hua-Yi, HSIEH Yuan-Ping, HUANG CHENG-YI
Принадлежит:

An intelligent control method applied in an intelligent control system that is having an air condition device, an intelligent control device, and a temperature sensor unit is disclosed and including following steps of: sensing and recording a set of first temperature values of a first time segment with the temperature sensor unit in the first time segment before the air condition device is started; calculating a temperature reference value by the intelligent control device according to the set of first temperature values after the air condition device is started; fine adjusting the temperature reference value by the intelligent control device according to a humidity value currently in the area; and, querying a mode association table by the intelligent control device according to fine adjusted temperature reference value to determine an operation mode of the air condition device. 1. An intelligent control method of air condition device applied in an intelligent control system disposed in an area and having an air condition device , an intelligent control device having a temperature sensor unit for sensing surrounding temperature and humidity of the intelligent control device , the intelligent control method comprising:a) sensing and recording a set of first temperature values of a first-time segment with the temperature sensor unit in the first-time segment before the air condition device is started;b) calculating a temperature reference value by the intelligent control device according to the set of first temperature values after the air condition device is started;c) fine adjusting the temperature reference value by the intelligent control device according to a humidity value currently in the area; andd) querying a mode association table by the intelligent control device according to fine adjusted temperature reference value to determine an operation mode of the air condition device.2. The intelligent control method of claim 1 , wherein the mode association table ...

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Номер записи: 6
28-01-2016 дата публикации

Battery-operated wireless zone controllers having multiple states of power-related operation

Номер: US20160025363A1
Автор: Lawrence Kates
Принадлежит: Google LLC

An Electronically-Controlled Register vent (ECRV) that can be easily installed by a homeowner or general handyman is disclosed. The ECRV can be used to convert a non-zoned HVAC system into a zoned system. The ECRV can also be used in connection with a conventional zoned HVAC system to provide additional control and additional zones not provided by the conventional zoned HVAC system. In one embodiment, the ECRV is configured have a size and form-factor that conforms to a standard manually-controlled register vent. In one embodiment, a zone thermostat is configured to provide thermostat information to the ECRV. In one embodiment, the zone thermostat communicates with a central monitoring system that coordinates operation of the heating and cooling zones.

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Номер записи: 7
24-04-2014 дата публикации

Method and Apparatus for Solar Fan Controller

Номер: US20140113542A1
Автор: Geoffrey Foreman, Robert Buckley
Принадлежит: U S Sunlight Corp

A method and apparatus for solar fan controller have been disclosed. In one version a solar fan controller (SFC) uses inputs about temperature, humidity, weather, and fan status to control a fan.

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Номер записи: 8
17-02-2022 дата публикации

Gas accumulation and combustion control device

Номер: US20220049863A1
Автор: Gabrielle Abizeid, Maria Gabriela Abizeid
Принадлежит: Individual

A gas accumulation and combustion control device combining a sorption system, a ventilation system, a control system, and sensor system, with the sensor system configured to detect gas contaminants, transmit a gas detection signal to the control system, the control system configured to adjust the ventilation system based on the gas detection signal, the ventilation system configured to draw the contaminated air in from the atmosphere and lead it toward the sorption system, which in turn is configured to adsorb or absorb the gas contaminants.

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Номер записи: 9
01-02-2018 дата публикации

Systems and methods for automated diagnostics of hvac systems

Номер: US20180032969A1
Автор: Aneek M. Noor, Brian D. Rigg, Jedidiah O. Bentz, John W. Uerkvitz, Shaun B. Atchison, Shawn A. Hern, Theresa Thy N. Gillette, Tom R. Tasker, Tyler P. McCune
Принадлежит: Johnson Controls Technology Co

A heating, ventilation, and air conditioning (HVAC) system includes a controller associated with a residence. The controller is configured to determine an expected value range for an operating parameter of a component of the HVAC system. Additionally, the controller is configured to receive a signal from a sensor indicative of a current value of the operating parameter of the component and determine if the current value of the operating parameter is outside the expected value range. Based on the determination that the current value is outside the expected value range, the controller is additionally configured to initiate a diagnostic mode of the controller. In the diagnostic mode, the controller is configured to collect diagnostic data associated with the HVAC system.

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Номер записи: 10
06-02-2020 дата публикации

FAN CONTROL APPARATUS AND FAN CONTROL METHOD

Номер: US20200041161A1
Автор: Araki Souma, Murakami Masashi, Murakami Naoki, OSAWA Honami
Принадлежит:

Provided is a fan control apparatus which includes: a first sensor; a second sensor; an RF fan; and a controller. The first sensor is provided in a first room, and is configured to acquire a measured value of at least one condition selected from conditions of atmospheric pressure, temperature, and humidity for the first room, the second sensor is provided in a second room adjacent to the first room, and is configured to acquire a measured value of the same condition as the at least one selected condition for the second room, the RF fan is placed at a boundary between the first and second rooms, and the controller is configured to control a rotational speed and rotational direction of the RF fan in such a manner that the measured values of the first and second sensors are the same. 1. A fan control apparatus comprising:a first sensor;a second sensor;an RF fan; anda controller, whereinthe first sensor is provided in a first room, and is configured to acquire a measured value of at least one condition selected from conditions of atmospheric pressure, temperature, and humidity for the first room,the second sensor is provided in a second room adjacent to the first room, and is configured to acquire a measured value of the same condition as the at least one selected condition for the second room,the RF fan is placed at a boundary between the first and second rooms, andthe controller is configured to control a rotational speed and rotational direction of the RF fan in such a manner that the measured values of the first and second sensors are the same.2. A fan control apparatus comprising:a first sensor;a second sensor;a third sensor;a first RF fan;a second RF fan; anda controller, whereinthe first sensor is provided in a first room, and is configured to acquire a measured value of at least one condition selected from conditions of atmospheric pressure, temperature, and humidity for the first room,the second sensor is provided in a second room adjacent to the first room, ...

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Номер записи: 11
06-02-2020 дата публикации

HVAC SYSTEM USING MODEL PREDICTIVE CONTROL WITH DISTRIBUTED LOW-LEVEL AIRSIDE OPTIMIZATION AND AIRSIDE POWER CONSUMPTION MODEL

Номер: US20200041965A1
Автор: Ellis Matthew J., Patel Nishith R., Turney Robert D.
Принадлежит: Johnson Controls Technology Company

A building HVAC system includes an airside system having a plurality of airside subsystems, a high-level controller, and a plurality of low-level airside controllers. Each airside subsystem includes airside HVAC equipment configured to provide heating or cooling to one or more building spaces. The high-level controller is configured to generate a plurality of airside subsystem energy targets, each airside subsystem energy target corresponding to one of the plurality of airside subsystems and generated based on a thermal capacitance of the one or more building spaces to which heating or cooling is provided by the corresponding airside subsystem. Each low-level airside controller corresponds to one of the airside subsystems and is configured to control the airside HVAC equipment of the corresponding airside subsystem in accordance with the airside subsystem energy target for the corresponding airside subsystem. 1. A heating , ventilation , or air conditioning (HVAC) system for a building , the HVAC system comprising:an airside system having a plurality of airside subsystems, each airside subsystem comprising airside HVAC equipment configured to provide heating or cooling to one or more building spaces;a high-level controller configured to generate a plurality of airside subsystem energy targets, each airside subsystem energy target corresponding to one of the plurality of airside subsystems and generated based on a thermal capacitance of the one or more building spaces to which heating or cooling is provided by the corresponding airside subsystem; anda plurality of low-level airside controllers, each low-level airside controller corresponding to one of the airside subsystems and configured to control the airside HVAC equipment of the corresponding airside subsystem in accordance with the airside subsystem energy target for the corresponding airside subsystem.2. The HVAC system of claim 1 , wherein the high-level controller is configured to generate the plurality of ...

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Номер записи: 12
16-02-2017 дата публикации

Plenum Pressure Control System

Номер: US20170045254A1
Автор: Mark Germagian
Принадлежит: PCE Inc

A plenum pressure controlled cabinet includes a sideways cooled component mounted so as to define gaps between the cabinet and the component. Baffles block some of the gaps. A negative pressure maintained within the cabinet causes makeup air to be drawn into the cabinet through a gap not blocked by baffles between one side of the cabinet and a cool air intake of the component. Thus, cool air is provided to the cool air intake of the component. A plenum pressure controlled enclosure includes an equipment rack maintained at a neutral pressure, a plenum maintained at a slightly negative pressure or a neutral pressure, and a cooling unit. The plenum takes in air from the rack and expels it into the cooling unit. By controlling differential pressures in the rack and the plenum, air is efficiently drawn from the equipment rack and cooled utilizing the cooling unit.

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Номер записи: 13
23-02-2017 дата публикации

Make-up air system and method

Номер: US20170051939A1
Автор: Brian R. Wellnitz, Richard R. Sinur, Thomas Heidel
Принадлежит: Broan NuTone LLC

Embodiments of the invention provide a system capable of reducing negative pressure. The system includes a make-up air system that can be configured and arranged to be installed within a structure, such as a building. The system can also include a pressure switch that is configured and arranged to sense a pressure within an exhaust duct coupled to an exhaust device. The pressure switch can also be configured to communicate an activation signal and a deactivation signal to the make-up air system. In some embodiments, communication of the activation and deactivation signals can be at least partially dependent on the pressure within the exhaust duct. Moreover, the pressure switch can be configured and arranged to be retroactively coupled to at least one of the exhaust duct and the exhaust device.

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Номер записи: 14
11-03-2021 дата публикации

Distributed monitoring sensor networks

Номер: US20210071885A1
Автор: David James Hutz
Принадлежит: Alarm com Inc

Methods and systems for monitoring multiple sensors over a distributed sensor network to enhance various monitoring operations. In some implementations, an identification of a sensor located in a property and a token that enables the mobile device to obtain data from the sensor are each received by a mobile device from a server. The mobile device is then determined to be within a communication range with the server that is indicated by the identification from the server. In response, data is obtained from the sensor by the mobile device using the token received from the server.

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Номер записи: 15
11-03-2021 дата публикации

Sensor device and secured wireless communication protocol for air quality sensor devices

Номер: US20210076328A1
Автор: Brock L. NIGG, Frank Ableson, Steve SCHLANGER
Принадлежит: Integrated Energy Services Corp

A system and method for secured and power-efficient communication between a sensor device and a control device operable in an air-quality system. The method includes receiving, during a first time period, a wake-up signal, wherein the wake-up signal includes at least a packet number; sending, during a second time period, an acknowledgment (ACK) signal, wherein an ACK signal is sent in reference to a synchronized time slot and a packet number; sending, during a third time period, at least sensor reading data of at least one air quality detector, wherein the sensor reading data is encrypted using at least an encryption key; receiving, during a fourth time period, a sleep signal; and entering into a sleep mode upon receipt of the sleep signal.

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Номер записи: 16
15-03-2018 дата публикации

Discharge system and methods

Номер: US20180073763A1
Автор: Arash Afrakhteh, Arsalan Afrakhteh
Принадлежит: Individual

Different examples of discharge systems and the method of operation thereof are disclosed. In an example, a discharge system can have an intake passage fluidly coupled to a venting system and to an intake plenum. The system can also include an air mover coupled to the intake plenum, the air mover being positioned within a housing and coupled to a motor configured to drive the air mover at varying speeds. The discharge system can have a plurality of exhaust passages, which each can include a movable damper. Further, one or more sensors can be part of the system. A controller can be coupled to the one or more sensors and, in response to readings from the one or more sensors, the system can change air speed and/or dampers position to ensure proper air flow and exhaust conditions.

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Номер записи: 17
18-03-2021 дата публикации

SMART BUILDING LEVEL CONTROL FOR IMPROVING COMPLIANCE OF TEMPERATURE, PRESSURE, AND HUMIDITY

Номер: US20210080143A1
Автор: Brown Julie J., Drieberg Mervyn Tremayne, Ellerman Rachel D.M., Jacobs Renee R., Staerkel Fawn R., Winters Alden R.
Принадлежит:

A building management system for monitoring and controlling HVAC parameters in a building includes one or more processing circuits configured to initialize a predictive model for predicting temperature, pressure, and humidity within a target area and an adjacent area of the building, receive target area data from a target area sensor array configured to measure temperature, pressure, and humidity of the target area, receive adjacent area data from an adjacent area sensor array configured to measure temperature, pressure, and humidity of the adjacent area, execute the predictive model based on the target area data and the adjacent area data to generate a prediction of future temperature, pressure, and humidity within the target area, and control operation of HVAC equipment to maintain the temperature, pressure, and humidity of the target area within a compliance standard. 1. A building management system (BMS) for monitoring and controlling heating , ventilation , or air conditioning (HVAC) parameters in a building , the BMS comprising: initialize a predictive model for predicting temperature, pressure, and humidity within a target area and an adjacent area of the building,', 'receive target area data from a target area sensor array configured to measure temperature, pressure, and humidity of the target area,', 'receive adjacent area data from an adjacent area sensor array configured to measure temperature, pressure, and humidity of the adjacent area,', 'execute the predictive model based on the target area data and the adjacent area data to generate a prediction of future temperature, pressure, and humidity within the target area, and', 'control operation of HVAC equipment to maintain the temperature, pressure, and humidity of the target area within a compliance standard., 'one or more processing circuits comprising one or more memory devices coupled to one or more processors, the one or more memory devices configured to store instructions thereon that, when executed ...

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Номер записи: 18
18-03-2021 дата публикации

Trend analysis and data management system for temperature, pressure, and humidity compliance

Номер: US20210081811A1
Автор: Fawn R. Staerkel, Julie J. Brown, Rachel D.M. Ellerman, Renee R. Jacobs, Tyler Brown
Принадлежит: Johnson Controls Technology Co

A building management system (BMS) includes a sensor array structured to provide sensor data indicative of temperature, pressure, and humidity in an interior space, and one or more processing circuits configured to execute stored instructions to receive the sensor data from the sensor array, generate, based on the sensor data, trend data indicative of the temperature, pressure, and humidity of the interior space over a period of time, generate, based on the trend data, a prediction of future trend data for the interior space, compare the sensor data and the prediction to a compliance standard, and initiate an automated response process in response to a determining that at least one of the sensor data or the prediction does not meet the compliance standard.

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Номер записи: 19
31-03-2022 дата публикации

COMMON VENTING SYSTEM FOR HEATING, COOLING AND DOMESTIC HOT WATER SYSTEMS

Номер: US20220099309A1
Автор: White Keith R.
Принадлежит: 1236220 B.C. LTD.

A common vent application and an independent fan coil are disclosed for improved heating, cooling and water making in a building. The independent fan coil obviates the common boilers and chillers in addition to all the common heating and cooling distribution piping used in known systems. Instead, the fan coils contain all the hydronic heating components and all the components needed to provide AC without the use of common boilers and chilled water systems. The fan coils utilize common vent shaft ducting to exhaust the products of combustion generated for the independent tankless water heater. In addition, the common vent shaft may utilize a negative static pressure environment to exhaust the heat of rejection from the AC portion of the fan coil unit. 1. A common venting system for a structure housing multiple suites , the venting system comprising:a rigid common venting pipe having a plurality of exhaust gas inlet ports, each exhaust gas inlet port arranged to receive exhaust gases generated by separate individual corresponding water heater units;an exit port coupled to the venting pipe and arranged to exhaust gases from the venting pipe to the atmosphere; anda pressure means coupled to the common venting pipe for maintaining a preset static pressure in the common venting pipe to draw the exhaust gases, in operation, through the common venting pipe toward the exit port.2. The venting system according to claim 1 , wherein the pressure means comprises a fan arranged near a bottom end of the common venting pipe to supply forced air into the common venting pipe to maintain positive static pressure in the common venting pipe to move air claim 1 , in operation claim 1 , upward through the common venting pipe toward the exit port.3. The venting system according to claim 1 , wherein the pressure means comprises a first fan arranged near a top end of the common venting pipe to maintain negative static pressure in the common venting pipe to move the exhaust gases claim 1 , in ...

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Номер записи: 20
31-03-2022 дата публикации

Refrigerant Leak Sensor Power Control Systems And Methods

Номер: US20220099346A1
Автор: David Alfano, Nathan O. BOYCE, Pham M. HUNG, Stuart K. Morgan
Принадлежит: Emerson Climate Technologies Inc

A sensor control system includes: a refrigerant leak sensor configured to, when powered, measure an amount of a refrigerant present in air outside of a heat exchanger of a refrigeration system, where the heat exchanger is located within a building that is at least one of heated and cooled by the refrigeration system; and a power control module configured to one of: continuously power the refrigerant leak sensor; and disconnect the refrigerant leak sensor from power when a blower that moves air past the heat exchanger is on.

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Номер записи: 21
31-03-2022 дата публикации

METHOD AND SYSTEM FOR MONITORING AIR LEAKS THROUGH A BUILDING ENVELOPE AND CONTROLLING A VENTILATION SYSTEM

Номер: US20220099521A1
Автор: HELSETH Per Magne, LIE Bjørnar
Принадлежит:

Methods and systems for estimating energy loss or controlling ventilation in a building based on measurements of air pressure differences between inside and outside of the building envelope. The measured differences may be used to calculate air leakage and corresponding energy loss, or to control a ventilation system in order to minimize air pressure difference and thereby the energy loss. 1. A method of monitoring air leakage in a building , comprising:obtaining an estimate of a correspondence between air flow through a building envelope and a difference in air pressure on respective sides of the envelope;obtaining a measurement of a current difference in air pressure on respective sides of the envelope;calculating a current flow of air per unit time through the envelope based on said correspondence and said current difference in air pressure; anddisplaying or transmitting a representation of said calculated current flow of air per unit time through the envelope.2. The method according to claim 1 , further comprising:obtaining a measurement of or calculating an absolute air pressure outside said building envelope, humidity outside said building envelope, and temperature outside and inside said building envelope;calculating an energy loss resulting from air leakage based on said calculated current flow of air per unit time through the envelope, and said measured or calculated absolute air pressure outside said building envelope, said humidity outside said building envelope, and said temperature outside and inside said building envelope; anddisplaying or transmitting a representation of said calculated energy loss.3. The method according to claim 2 , wherein said energy loss is a result of a net flow of heat out of the building envelope resulting in an increased need for heating claim 2 , or a result of a net flow of heat into the building resulting in an increased need for cooling.4. The method according to claim 2 , wherein said calculating the energy loss includes ...

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Номер записи: 22
31-03-2016 дата публикации

Wireless zone control via mechanically adjustable airflow elements

Номер: US20160091220A1
Автор: Lawrence Kates
Принадлежит: Google LLC

An Electronically-Controlled Register vent (ECRV) that can be easily installed by a homeowner or general handyman is disclosed. The ECRV can be used to convert a non-zoned HVAC system into a zoned system. The ECRV can also be used in connection with a conventional zoned HVAC system to provide additional control and additional zones not provided by the conventional zoned HVAC system. In one embodiment, the ECRV is configured have a size and form-factor that conforms to a standard manually-controlled register vent. In one embodiment, a zone thermostat is configured to provide thermostat information to the ECRV. In one embodiment, the zone thermostat communicates with a central monitoring system that coordinates operation of the heating and cooling zones.

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Номер записи: 23
30-03-2017 дата публикации

Networked filter condition indicator

Номер: US20170089606A1
Автор: Stewart Breslin
Принадлежит: BD Tech Partners, Bd Technology Development Partners

A filter condition indicator system is described herein. A pressure differential switch monitors air pressure across a filter, and a transmitter coupled to the pressure differential switch sends a signal to a networked device. If the pressure differential near the filter triggers the switch, then a “dirty” signal is sent to or retrieved by a mobile device which indicates that the filter is dirty and should be replaced. The filter condition indicator is able to be used by bypassing a thermostat and sending an alert to a computer or mobile device wirelessly. Alternatively, the filter condition indicator system described herein is able to be used in conjunction with a previously installed furnace/thermostat system by utilizing the pre-existing thermostat wiring. The filter condition indicator system is able to be used with HVAC systems, air conditioning systems, other heating/cooling systems, or other systems or devices.

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Номер записи: 24
19-03-2020 дата публикации

Wireless sensor system for hvac systems

Номер: US20200088434A1
Автор: Anthony J. Reardon, Curtis A. Trammell, Joseph P. Diaz, Randall C. Forristall, Robert C. Haddad, Theresa T. Dinh, Tyler S. Riddle, Vincent E. Ford
Принадлежит: Johnson Controls Technology Co

A heating, ventilation, and/or air conditioning (HVAC) system. The system includes a housing with HVAC equipment. A sensor detects an operating condition of the HVAC system and wirelessly transmits a signal indicative of the operating condition. The sensor couples to or is disposed within the housing. A controller receives the signal indicative of the operating condition and controls operation of the HVAC system in response to the signal. The controller is coupled to or disposed within the housing.

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Номер записи: 25
12-05-2022 дата публикации

AIR CONDITIONING SYSTEM

Номер: US20220146124A1
Автор: NOUCHI Yoshiteru, TANAKA Shuuichi, TATSUMI Kouji
Принадлежит: DAIKIN INDUSTRIES, LTD.

Provided is an air conditioning system that uses ducts to supply conditioned air to a plurality of places inside a building, and is configured to counteract air backflow that occurs in ducts. A heat exchanger unit includes a use side heat exchanger. A plurality of ducts are connected to the heat exchanger unit. A plurality of fan units suction conditioned air from the heat exchanger unit, and supply the conditioned air to a plurality of air outlets through the plurality of ducts. A differential pressure sensor acting as a detector detects air backflow proceeding from at least one air outlet among the plurality of air outlets toward the heat exchanger unit in a plurality of distribution flow paths including the plurality of ducts, the plurality of fan units, and the air outlets of a plurality of outlet units. 1. An air conditioning system comprising a heat exchanger unit including a use side heat exchanger , and a main controller , and configured to generate conditioned air through heat exchange in the use side heat exchanger and supply the conditioned air to an air conditioned space through a plurality of distribution flow paths that communicate with the heat exchanger unit , whereineach distribution flow path is connected to the heat exchanger unit and includes a duct for distributing the conditioned air and a fan unit provided in correspondence with the duct and configured to supply the conditioned air from the heat exchanger unit through the duct to an air outlet,each fan unit is provided with a fan controller and a detector connected to the fan controller and configured to detect an air backflow proceeding from the air outlet toward the heat exchanger uniteach fan controller is configured to transmit a detection result obtained by the detector to the main controller, and control to increase or decrease an air flow volume and cause an air supply amount to approach a target air supply amount indicated by the main controller, andthe main controller clears the air ...

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Номер записи: 26
12-05-2022 дата публикации

Systems and methods for automated diagnostics of hvac systems

Номер: US20220147949A1
Автор: Aneek M. Noor, Brian D. Rigg, Jedidiah O. Bentz, John W. Uerkvitz, Shaun B. Atchison, Shawn A. Hern, Theresa Thy N. Gillette, Tom R. Tasker, Tyler P. McCune
Принадлежит: Johnson Controls Technology Co

A heating, ventilation, and air conditioning (HVAC) system includes a controller associated with a residence. The controller is configured to determine an expected value range for an operating parameter of a component of the HVAC system. Additionally, the controller is configured to receive a signal from a sensor indicative of a current value of the operating parameter of the component and determine if the current value of the operating parameter is outside the expected value range. Based on the determination that the current value is outside the expected value range, the controller is additionally configured to initiate a diagnostic mode of the controller. In the diagnostic mode, the controller is configured to collect diagnostic data associated with the HVAC system.

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Номер записи: 27
12-04-2018 дата публикации

Systems and methods for pivotable evaporator coils

Номер: US20180100671A1
Автор: Douglas A. Kester, Kevin R. Stockton, Kristen Velez-Diaz, Nicholas P. Mislak, Ryan L. Snider, Stacy S. Lemkelde
Принадлежит: Johnson Controls Technology Co

A heating, ventilation, and air conditioning (HVAC) system includes an enclosure and an evaporator coil disposed within the enclosure. The HVAC system also includes a pivot member coupled between an edge portion of the evaporator coil and the enclosure. The pivot member is configured to enable the evaporator coil to pivot relative to the enclosure to adjust an operating angle of the evaporator coil during operation of the HVAC system. Additionally, the HVAC system includes an actuator configured to enable pivoting of the evaporator coil to a target operating angle based on an operating parameter input.

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Номер записи: 28
08-04-2021 дата публикации

Retrofit register control system

Номер: US20210102728A1
Автор: Eric Wayne Palmbos, Rahul Jain, Satyendra Kumar, Vikas Ashok PATIL
Принадлежит: Cardinal IP Holding LLC

Aspects of the present disclosure include a damper control system having a casing configured to detachably couple from a conventional air register having a damper assembly movably controllable by a manual lever, a motor assembly mounted to the casing, an actuating linkage assembly movably attached to the motor assembly and configured to detachably couple with the manual lever that controls the damper assembly, wherein one or more dampers of the damper assembly are in a closed position when the actuating linkage assembly is in a first position and in an open position when the actuating linkage assembly is in a second position, a memory mounted within the casing, and one or more processors communicatively coupled with the memory and mounted within the casing, the one or more processors being configured to cause the motor assembly to drive the actuating linkage assembly between the first position and the second position.

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Номер записи: 29
04-04-2019 дата публикации

Air pressure controller for air ventilation devices

Номер: US20190101302A1
Автор: Adam Collin VANCE, Dennis J. Steinhauer, Michael Rainone, Samuel A. Sackett
Принадлежит: Individual

A ventilation management system for a structure includes one or more sensors, disposed in and/or outside the structure, capable determining a pressure differential between the interior and exterior air pressure. A controller coupled to the one or more sensors provides a control signal to one or more ventilation units which signal the ventilation units to bring outside air into the structure to insure that the pressure inside the structure is equal to, or greater than, the pressure outside of the structure.

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Номер записи: 30
02-06-2022 дата публикации

DATA CENTER AIR CONDITIONING CONTROL DEVICE, METHOD, NONTRANSITORY COMPUTER READABLE MEDIUM, AND AIR CONDITIONING SYSTEM

Номер: US20220170662A1
Автор: MIYAMOTO Yoshinori, NATSUMEDA Takafumi, RAJPUT Nirmal Singh, YOSHIKAWA Minora
Принадлежит: NEC Corporation

An air conditioning control device includes a differential pressure calculation unit that calculates differential pressure between the intake side and the exhaust side of a rack containing at least one server, and a rotational speed control unit that controls the rotational speed of an air conditioning fan on the basis of the differential pressure. The rotational speed control unit increases or decreases the rotational speed of the air conditioning fan depending on the variation of the differential pressure in the event of a change in the rotational speed of the air conditioning fan. 1. An air conditioning control device comprising:a differential pressure calculation means for calculating differential pressure between an intake side and an exhaust side of a rack containing at least one server; anda rotational speed control means for controlling a rotational speed of an air conditioning fan on the basis of the differential pressure,wherein the rotational speed control means increases or decreases the rotational speed of the air conditioning fan depending on a variation of the differential pressure in event of a change in the rotational speed of the air conditioning fan.2. The air conditioning control device according to claim 1 , wherein the rotational speed control means increases or decreases the rotational speed of the air conditioning fan depending on a comparison result of the variation of the differential pressure in event of a change in the rotational speed of the air conditioning fan with a predetermined value.3. The air conditioning control device according to claim 1 , wherein when the variation of the differential pressure in event of a change in the rotational speed of the air conditioning fan is equal to or less than a first predetermined value claim 1 , the rotational speed control means decreases the rotational speed of the air conditioning fan to lower than the rotational speed after change claim 1 , and when the variation is equal to or more than a ...

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Номер записи: 31
11-04-2019 дата публикации

LOW FLOW FLUID DEVICE AND PRE-PIPED HYDRONICS

Номер: US20190107303A1
Автор: Karamanos John C., Willke Herbert
Принадлежит:

An air distribution apparatus that serves as a single sensing device for both lighting, LiFi, and HVAC functions that are operable on a single platform by building automation systems. The building automation system may be controllable by a single software system or network accessible locally on site or remotely off site. The air distribution apparatus can operate in a single zone or coupled with multiple like apparatuses for multi-zone operation. It is a high turndown, self-balancing system which allows for continuous commissioning with built-in fault diagnostic systems and that may be used as a supply, return, or exhaust system, or a combination thereof. The air distribution apparatus includes multi-stage airflow control systems that operate progressively based on unique actuation mechanisms and/or algorithms that allow for precise flow control and feedback to self-balance and commission the system. 1. A variable fluid volume device , comprising:a housing having housing dimensions; and a damper device that, when closed, prevents the fluid from flowing through the housing and, when open, provides an aperture through which the fluid in the housing flows, wherein the aperture has configurable aperture dimensions that are configured based on a state of the damper device, and wherein the damper device operates as an orifice plate that facilitates measuring the flow based on a flow profile that is determined as a function of the housing dimensions and the configurable aperture dimensions; and', 'a control device configured to control the state of the damper device based on a pressure measurement., 'a low fluid flow (LFF) device that measures and controls a flow of a fluid through the housing, wherein the LFF device comprises2. The variable fluid volume device of claim 1 , wherein the fluid is a gas and the housing dimensions are configurable according to a variable aspect ratio that corresponds to dimensions of a heating claim 1 , ventilation claim 1 , and air ...

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Номер записи: 32
26-04-2018 дата публикации

HVAC Systems and Methods with Improved Stabilization

Номер: US20180112900A1
Автор: Berg Eric, GOEL Rakesh
Принадлежит:

Systems and methods are presented for improving stabilization of a heating, ventilating, and air conditioning (HVAC) system. More specifically, the systems and methods include a heat-flow modulator for regulating an exchange of thermal energy between a flow of refrigerant and a sensory bulb. The exchange of thermal energy allows an expansion valve to respond to a refrigerant temperature using an actuator, which is coupled to the sensory bulb. The heat-flow modulator is formed of a body that includes a first contact surface and a second contact surface. The first contact surface is thermally-coupled to a suction line of the HVAC system, which conveys the flow of refrigerant. The second contact surface is thermally-coupled to the sensory bulb. In one instance the heat-flow modulator has variable volume depending on how installed. Other systems and methods are presented. Variable heat-flow modulators are also presented. 1. A method for stabilizing suction line pressure in a heating , ventilating , and air conditioning system , the method comprising: a body having a first side and a second side, wherein the first side has a first curved surface and the second side has a second curved surface, and', 'wherein the body is formed from a metallic material;, 'providing a heat-flow modulator, wherein the heat-flow modulator comprisesdisposing the heat-flow modulator between the suction line and a sensory bulb;securing with a bracket the heat-flow modulator between the suction line and the sensory bulb; andadjusting the heat-flow modulator to have an effective volume between a suction line and a sensory bulb such that oscillations in the suction line pressure are at least five percent less than oscillations in the suction line pressure for an identical heating, ventilating, and air conditioning system without the heat-flow modulator.2. The method of claim 1 , wherein the effective volume is greater than or equal to 0.0078125 inand less than or equal to 0.0234375 in.3. The ...

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Номер записи: 33
09-06-2022 дата публикации

SYSTEM AND METHOD FOR IDENTIFYING CAUSES OF HVAC SYSTEM FAULTS

Номер: US20220178568A1
Автор: Brahme Amita, Gokhale Umesh
Принадлежит:

A controller of an HVAC system is communicatively coupled to a suction-side sensor and a shutoff switch. The controller stores measurements of the suction-side property over an initial period of time. The controller detects that the shutoff switch is tripped at a first time stamp corresponding to an end of the initial period of time. The controller accesses the measurements of the suction-side property. The controller determines, based on the measurements of the suction-side property, whether the suction-side property has an increasing or decreasing trend. In response to determining that the suction-side property has the increasing trend, the controller determines that a malfunction of a fan caused the shutoff switch to trip. In response to determining that the suction-side property has the decreasing trend, the controller determines that a blockage of the refrigerant conduit subsystem caused the shutoff switch to trip. 1. A heating , ventilation and air conditioning (HVAC) system comprising:a refrigerant conduit subsystem configured to allow a flow of refrigerant through the HVAC system;a compressor configured to receive refrigerant and direct the refrigerant to flow through a refrigerant conduit subsystem;a condenser configured to receive the refrigerant and allow heat transfer between the received refrigerant and a flow of air across the condenser;a fan configured to provide the flow air across the condenser;a liquid-side sensor positioned and configured to measure a liquid-side property associated with the refrigerant provided from an outlet of the compressor;a shutoff switch communicatively coupled to the liquid-side sensor and configured to be tripped and automatically stop operation of the compressor and fan, in response to determining that the liquid-side property is greater than a predefined maximum value;a suction-side sensor positioned and configured to measure a suction-side property associated with refrigerant provided to an inlet of the compressor; and ...

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Номер записи: 34
13-05-2021 дата публикации

Continuous Monitoring for Early Failure Detection in Climate Control Systems

Номер: US20210140664A1
Автор: Ronald B. Roth
Принадлежит: Roth Technologies LLC

Computer program products, devices, systems, and operations for early detection of poor performance and failure of a climate control system. The invention provides operations for computing an actual run time percentage (ART) from operational data of the climate control system, and operations for computing an estimated run time percentage (ERT) of the climate control system from temperature data of an uncontrolled climate. The invention also provides operations for issuing one or more alerts if the ART deviates from the ERT or a range thereof.

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Номер записи: 35
25-04-2019 дата публикации

Control of variable rate heater in an animal enclosure

Номер: US20190116753A1
Автор: Benoit R. Laberge, Jonathan Brodeur, Martial BERTHOD, Nathan Robert Eversole, Yvon GAUDREAU
Принадлежит: GSI GROUP CORP

A method for performing a learning cycle to determine a Start Temperature and a Stop Temperature for a PI loop algorithm is used for operating a climate control system (20) in an animal house (10). The climate control system has at least one climate control input device (21) and at least one heater device (23) and a climate control module (27) that receives input information from the at least one input device and controls the operation of the at least one heater device to regulate the climate in the animal house.

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Номер записи: 36
25-08-2022 дата публикации

Housing for receiving contaminated airflow from a clothes dryer or from a building's interior, constructed for filtering and recycling thru an interior piping system or disposing out to a building's exterior and comprising a safety mechanical shutdown system of the clothes dryer

Номер: US20220266185A1
Автор: Wayne Edward Bailey
Принадлежит: Individual

Listed are some of this invention's unique features for producing a healthier home and a safer clothes dryer vent within the same housing system, which may be installed within a typical wall system or as a free-standing unit in a laundry room.Included are two airflow receiving ports that accepts airflow from a clothes dryer or optionally from a house's interior rooms and two airflow exhaust ports that discharge the same airflow into an exhaust pipe to the outside or optionally into the building interior as recycled airflow.A drainage device removes water derived from condensate which forms in the exhaust pipe and otherwise flows back into the housing.Two (2) receiving ports and the two (2) exiting ports combine to provide four (4) combinations of airflow management.The choice of which of the four (4) airflow ports are activated for airflow passage is subject to a selection from a control system which contains switches for the desired airflow management thru the housing.Additionally, an exhaust system constructed to select airflow destinations, first destination, airflow can be directed to exit to the building's outside atmosphere or second destination, airflow can be directed to exit into an interior duct system for recycling of the filtered airflow.Additionally, the control system contains monitors and sensors to indicate unsafe temperatures, air pressure changes or filter blockage within the housing.A shutdown mechanism within the control system stops the airflow exhaust fan and stops the clothes dryer to provide an additional measure of safety.Included in the invention is a multi-filter filtration system that includes filters that block lint particulate from a clothes dryer and block indoor pollutants comprising pre-filters, True HEPA filters, with activated carbon filters and air cleaners to meet EPA Indoor Air Quality Standards and MERV Ratings.A multi-speed airflow exhaust fan moves airflow in thru the receiving ports, thru the multi-filters and ...

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Номер записи: 37
01-09-2022 дата публикации

FLOWRATE DETERMINATION SYSTEM AND METHOD FOR A FLOW CONTROL VALVE

Номер: US20220275963A1
Автор: Brophy Christopher, Freimuth Duane S., Raasch Jason J., Weiss Kevin A.
Принадлежит: Johnson Controls Technology Company

A flow control device for controlling flow in a heating, ventilation, or air conditioning (HVAC) system is shown. The flow control device includes a valve body including an inlet path, an outlet path, a valve member, and a valve stem coupled to the valve member. The flow control device includes a first sensor configured to obtain pressure measurements within the valve body, a second sensor configured to obtain displacement measurements of the valve stem, and a controller including a processing circuit configured to determine a flowrate based at least on the pressure measurements from the first sensor and the displacement measurements from the second sensor. 1. A flow control device for controlling flow in a heating , ventilation , or air conditioning (HVAC) system , the flow control device comprising:a valve body comprising an inlet path, an outlet path, a valve member, and a valve stem coupled to the valve member;a first sensor configured to obtain pressure measurements within the valve body;a second sensor configured to obtain displacement measurements of the valve stem; anda controller comprising a processing circuit configured to determine a flowrate based at least on the pressure measurements from the first sensor and the displacement measurements from the second sensor.2. The flow control device of claim 1 , wherein the valve body further comprises a diaphragm; andwherein the first sensor is configured to obtain the pressure measurements based on one or more displacement measurements of the diaphragm.3. The flow control device of claim 1 , wherein the controller is further configured to:receive the pressure measurements and the displacement measurements;receive flow control device parameters from a database, the flow control device parameters s comprising at least one of a specific gravity, a flow coefficient of the flow control device, a diaphragm characteristic, and a spring characteristic;determine a pressure differential between the pressure in the inlet ...

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Номер записи: 38
10-06-2021 дата публикации

METHOD AND SYSTEM FOR SUPPLY-AIR RE-CIRCULATION

Номер: US20210172642A1
Автор: GOEL Rakesh, Perez Eric
Принадлежит: Lennox Industries Inc.

An HVAC system includes an evaporator coil disposed between a supply air duct and a return air duct. A re-circulation duct fluidly couples the supply air duct and the return air duct. A damper is disposed in the re-circulation duct and is moveable between an open position and a closed position. A controller is operatively coupled to a variable-speed compressor, a variable-speed circulation fan, and the damper. Responsive to a determination that the variable-speed circulation fan is operating at the minimum speed and the suction pressure is above the pre-determined threshold, the controller signals the damper to move to the open position. Responsive to a determination that the variable-speed circulation fan is not operating at the minimum speed or the suction pressure is below the pre-determined threshold, the controller signals the damper to move to the closed position. 1. A heating , ventilation , and air conditioning (HVAC) system comprising:an evaporator coil disposed between a supply air duct and a return air duct;a re-circulation duct that couples the supply air duct and the return air duct;a controller operatively coupled to a variable-speed compressor, a variable-speed circulation fan, and a damper, wherein the damper is disposed in the re-circulation duct and is moveable between an open position and a closed position; determine if the variable-speed circulation fan is operating at a minimum speed;', 'monitor an operating parameter of the HVAC system;', 'determine if the operating parameter of the HVAC system exceeds a pre-determined threshold;', 'responsive to a determination that the variable-speed circulation fan is not operating at the minimum speed or the operating parameter is below the pre-determined threshold, signal the damper to move to the closed position; and', 'wherein the operating parameter is a refrigerant pressure in a suction line., 'wherein the controller is configured to2. The HVAC system of claim 1 , wherein:the variable-speed circulation ...

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Номер записи: 39
10-06-2021 дата публикации

AIR DUCT ASSEMBLY WITH FIELD ACCESSIBLE PORTS

Номер: US20210172778A1
Автор: ANIULIS Aurimas, Scholten Jean H., Smith Damon Bryan
Принадлежит: Johnson Controls, Inc.

An air duct includes a shell, a first annular chamber defined along a circumference of the sidewall and fluidly coupled with an inner volume defined by the shell through multiple first openings, a second annular chamber defined along the circumference of the shell at a longitudinal position downstream of the first annular chamber, and fluidly coupled with the inner volume of the shell through multiple second openings, a first pressure sensing coupler, a second pressure sensing coupler, a first field accessible coupler, and a second field accessible coupler. The first pressure sensing coupler is fluidly coupled with the first annular chamber and the second pressure sensing coupler is fluidly coupled with the second annular chamber for pressure detection. The first and second field accessible couplers are fluidly coupled with the first and second annular chambers for providing pressurized air to the first annular chamber and the second annular chamber. 1. An air duct comprising:a shell;a first annular chamber defined along a circumference of the shell and fluidly coupled with an inner volume defined by the shell through a plurality of first openings;a second annular chamber defined along the circumference of the shell at a longitudinal position downstream of the first annular chamber, the second annular chamber fluidly coupled with the inner volume through a plurality of second openings;a first pressure sensing coupler fluidly coupled with the first annular chamber and a second pressure sensing coupler fluidly coupled with the second annular chamber for pressure detection; anda first field accessible coupler fluidly coupled with the first annular chamber and a second field accessible coupler fluidly coupled to the second annular chamber for providing pressurized air to the first annular chamber and the second annular chamber.2. The air duct of claim 1 , wherein the shell is a cylindrical hollow member.3. The air duct of claim 1 , wherein the second annular chamber is ...

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Номер записи: 40
10-06-2021 дата публикации

SYSTEMS AND METHODS FOR CONTROL OF AN AIR DUCT

Номер: US20210172779A1
Автор: Scholten Jean H.
Принадлежит: Johnson Controls, Inc.

A controller for an HVAC system includes processing circuitry configured to perform a volumetric offset control (VOC) scheme based on a flowrate offset setpoint to operate a valve to drive an actual flowrate offset between a supply rate of air entering a space and an exhaust rate of air leaving the space toward the flowrate offset setpoint. In some embodiments, the valve is configured to control the supply rate of air entering the space or the exhaust rate of air leaving the space and to provide sensor data indicating a flowrate therethrough. In some embodiments, the processing circuitry is configured to monitor a pressure of the space to detect a pressure condition and update the flowrate offset setpoint in response to detecting the pressure condition. In some embodiments, the processing circuitry is configured to perform the VOC scheme based on the updated offset flowrate setpoint. 1. A heating , ventilation , or air conditioning (HVAC) system for a space , the HVAC system comprising:a valve configured to control an exhaust flowrate of exhaust air that exits the space or a supply flowrate of inlet air that enters the space, wherein the valve is configured to provide sensor data indicating a flowrate therethrough;a pressure differential sensor configured to measure an actual pressure differential of the space relative to a reference pressure; and determine an actual offset flowrate between the supply flowrate and the exhaust flowrate;', 'operate the valve to adjust the exhaust flowrate or the supply flowrate to drive the actual offset flowrate toward an offset flowrate setpoint;', 'obtain the actual pressure differential from the pressure differential sensor; and', 'update the offset flowrate setpoint in response to the actual pressure differential being greater than a maximum allowable pressure differential or less than a minimum allowable pressure differential., 'a controller configured to2. The HVAC system of claim 1 , wherein:the valve is a first valve ...

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Номер записи: 41
04-06-2015 дата публикации

Method for controlling and monitoring the level of confinement of internal air, and related environment device and station

Номер: US20150153061A1
Автор: Jacques Henri Riberon, Olivier Ramaho
Принадлежит: Centre Scientifique et Technique du Batiment CSTB

The invention relates to a method for controlling and monitoring the level of confinement of the internal environment of a room, which includes determining the confinement index I from measurements of the CO 2 content during a predetermined period, and reducing the level of confinement in accordance with the CO 2 content. According to the invention, periods of occupancy of the internal environment are determined by means of at least one presence sensor provided with a calibration device which enables the sensor to react to the presence of humans as from an occupancy threshold. The invention also relates to a device configured in particular to calculate the confinement index I.

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Номер записи: 42
07-05-2020 дата публикации

PEST REPELLING DEVICE

Номер: US20200141600A1
Автор: Connell Raymond
Принадлежит:

Apparatus and associated methods relate to a pest repelling magnetic field generating device (PRD) having a temperature sensor to detect the temperature of a solenoid coil during operation. The detected temperature to be used to ensure that the PRD operates within an ideal temperature range. Additionally, a fan is oriented within a housing of the PRD to force the flow of air from inside a housing of the PRD to outside a housing the PRD. In an illustrative example, the PRD may shut off if the temperature of the solenoid coil moves outside the ideal temperature range. By operating the PRD within an ideal temperature range, the service life of the PRD may be extended. Further, the fan may mitigate dust collection within the housing of the pest repelling magnetic field generating device. 120.-. (canceled)21. A pest repelling magnetic field generating device comprising:a housing;a solenoid coil disposed in the housing and having a first winding terminal configured to connect to a first power terminal of a power source;a semiconductor switching device having a control terminal, and a first and a second current carrying terminals, wherein a conductivity between the first and second current carrying terminals is modulated in response to a control signal applied to the control terminal, wherein the first current carrying terminal connects to a second winding terminal of the solenoid coil, and the second current carrying terminal connects to a second power terminal of the power source;a temperature sensor configured to sense a temperature of the solenoid coil;a processor operably coupled to the temperature sensor and the control terminal of the semiconductor switching device; receive, from the temperature sensor, temperature information about the solenoid coil;', 'determine whether the received temperature information meets a predetermined threshold as defined by the program of instructions;', 'if the received temperature information does not exceed the predetermined ...

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Номер записи: 43
22-09-2022 дата публикации

Hvac air balance monitoring and testing system

Номер: US20220299226A1
Автор: Corey KILPACK, Eric Laflure, Steven A. Manz
Принадлежит: LIFE BALANCE TECHNOLOGIES LLC

The invention is an airborne infection control monitoring, condition data collection, testing and reporting system. The system includes new sensors and other equipment needed to collect HVAC data, the placement of the sensors in the HVAC system, software needed to retrieve the data, and the algorithms used in analyzing the data to the required building design specifications. The proposed method and system would collect current room condition data and apply it to a virtual ventilation, room and equipment structure to efficiently determine if the building's rooms meet the air balance and infection control requirements.

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Номер записи: 44
14-05-2020 дата публикации

Automated monitoring system for a forced air handling system and method of operation

Номер: US20200149763A1
Автор: Anarta Ghosh, Kushal Mukherjee, Rohan CHABUKSWAR
Принадлежит: Carrier Corp, United Technologies Research Centre Ireland Ltd

A forced air handling system includes an automated monitoring system. A method of operating the automated monitoring system includes initiating a calibration mode of operation via a controller. A plurality of dampers may then close via the controller. Once closed, a duct in communication with the plurality of dampers may be pressurized. A first air flow measuring exiting each one of the plurality of dampers may be obtained by a flow sensor. The duct is then depressurized and a second airflow measurement is taken, via the controller, exiting each one of the plurality of dampers. The controller calculates a statistical difference between the first and second airflow measurements.

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Номер записи: 45
14-05-2020 дата публикации

Device for Measuring Clogging of Filter in Air Conditioner and Air Conditioner

Номер: US20200149766A1
Автор: Akira Yamazaki, Isao Honbori, Toshiro Kisakibaru
Принадлежит: Cambridge Filter Japan Ltd, Kondoh Industries Ltd

A device that can accurately detect clogging of a filter and that has a simple structure is provided. A device for measuring clogging of a filter in an air conditioner ( 2 ) having a blower ( 30 ) that blows gas ( 40 ), ( 42 ) through a duct ( 10 ) and a filter ( 20 ) that is provided in the duct ( 10 ) and filters dust floating in the gas, comprises a device ( 26 ) for measuring a sound pressure that is provided in the duct ( 10 ), a data processor ( 70 ) that extracts data on the sound pressure at a specific frequency from the data on the sound pressure that have been measured by means of the device ( 26 ) for measuring a sound pressure, and an estimating device ( 70 ) that estimates clogging of the filter based on the data on the sound pressure at the specific frequency that have been extracted by means of the data processor ( 70 ).

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Номер записи: 46
28-05-2020 дата публикации

VENTILATION UNIT, SYSTEM AND METHOD

Номер: US20200166235A1
Автор: Koerber Achim Gerhard Rolf, MARRA JOHANNES, Ronda Cornelis Reinder
Принадлежит:

A ventilation unit is for ventilating an indoor space, and incorporates an air cleaning device and mechanical restrictor for controlling a restriction to a flow resulting from a pressure differential across the unit. There is determination of the inside and outside air pressures in the vicinity of the unit and of air quality parameters inside and outside. The air cleaning device and the mechanical restrictor are controlled in dependence on the determined air pressures and air quality parameters. This provides a fan-less, and hence low-power ventilation unit, which relies on throttling the natural air flow across the unit to provide flow control, and hence enable control of air quality. The air cleaning device may be operated only when the flow is into the inside space, saving power. 1. A ventilation unit for ventilating an indoor space by natural ventilation , comprising:a first air port for positioning outside the indoor space;a second air port for positioning inside the indoor space;an air cleaning device between the first and second air ports;a mechanical restrictor for controlling a restriction to a flow between the first and second air ports, wherein the flow results from a pressure differential between the first and second air ports;a pressure sensing arrangement for determining the air pressures or the air pressure difference in the vicinity of the first and second air ports;a first air quality determination system for determining air quality parameters relating to the space outside the indoor space;a second air quality determination system for determining air quality parameters relating to the indoor space; anda controller,wherein the controller is adapted to control the air cleaning device and the mechanical restrictor in dependence on the determined air pressures and air quality parameters.2. The unit as claimed in claim 1 , wherein the air quality parameters comprise temperature and relative humidity.3. The unit as claimed in claim 1 , wherein the air ...

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Номер записи: 47
28-06-2018 дата публикации

Air conditioner and method of controlling the same

Номер: US20180180317A1
Автор: Chiwoo Song, Pilhyun Yoon, Yongcheol SA
Принадлежит: LG ELECTRONICS INC

An air conditioner and a method of controlling the same are provided. The air conditioner includes an outside unit, which is provided with a compressor and an evaporator, an outside temperature sensor attached to the outside unit to sense outside temperature, an outside humidity recognition part attached to the outside unit to recognize information about outside humidity, a low pressure sensor that senses an evaporation pressure of the evaporator, and a control part that controls an operation of the compressor, based on both information about dew-point temperature sensed from the outside temperature sensor and the outside humidity recognition part and information about the evaporation pressure sensed from the low pressure sensor. The control part changes an operation frequency of the compressor according to whether the evaporation pressure is not lower than a preset reference low pressure, to prevent frosting of the evaporator.

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Номер записи: 48
13-06-2019 дата публикации

Volume flow regulator

Номер: US20190178524A1
Автор: Wolfgang Spreitzer
Принадлежит: Gruner AG

A volumetric flow controller for air conditioning and ventilation systems for displacing a control flap that is adjustably supported in the interior of a flow channel includes a differential pressure sensor for measuring a pressure difference prevailing in the flow channel. A control unit displaces the control flap depending on the pressure measured by the pressure sensor for adjusting a target volumetric flow in the flow channel. A first operating element is for selecting one of a plurality of parameters, in particular of control and/or configuration parameters. A second operating element is for adjusting the value of the respective selected parameter. A display is for displaying the currently set value of the respective selected parameter. The first operating element is a push button, a touch-sensitive switch, a touch-sensitive control panel or a contactless operating element for advancing the respective parameter displayed in the display.

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Номер записи: 49
04-06-2020 дата публикации

AIR CONDITIONING APPARATUS

Номер: US20200173682A1
Автор: Shimazu Yusuke
Принадлежит:

An air conditioning apparatus includes: a supercooling heat exchanger configured to supercool refrigerant flowing in a first flow path between an outdoor heat exchanger and an expansion valve; a flow path switching valve configured to switch a flow path between an indoor heat exchanger and a compressor to one of a second flow path that does not extend through the supercooling heat exchanger and a third flow path that extends through the supercooling heat exchanger; a bypass circuit that is branched from the first flow path and extends through the supercooling heat exchanger; and a bypass regulating valve provided in the bypass circuit; and a controller. In a cooling operation, when a load is not low, the controller selects the second flow path and opens the bypass regulating valve, whereas when the load is low, the controller selects the third flow path and closes the bypass regulating valve. 1. An air conditioning apparatus comprising:an outdoor unit including a compressor and an outdoor heat exchanger;at least one indoor unit including an expansion valve and an indoor heat exchanger; anda main circuit configured to circulate refrigerant through the compressor, the outdoor heat exchanger, the expansion valve, and the indoor heat exchanger, whereinthe main circuit includes a first flow path between the outdoor heat exchanger and the expansion valve,the air conditioning apparatus further comprising a supercooling heat exchanger configured to supercool the refrigerant flowing in the first flow path, whereinas a flow path between the indoor heat exchanger and the compressor, the main circuit includes a second flow path that does not extend through the supercooling heat exchanger, and a third flow path that extends through the supercooling heat exchanger,the air conditioning apparatus further comprising:a flow path switching valve configured to switch, to one of the second flow path and the third flow path, the flow path between the indoor heat exchanger and the ...

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Номер записи: 50
18-09-2014 дата публикации

Systems and methods for damper performance diagnostics

Номер: US20140277773A1
Автор: Dimitri S. Papadopoulos, Troy A. Goldschmidt
Принадлежит: Johnson Controls Technology Co

A computerized method for diagnosing a damper condition in a flow control unit includes providing a control signal to a damper. The control signal instructs the damper to move into a target position or to achieve a target flow rate through the flow control unit. The method further includes receiving pressure information including one or more pressure measurements from a differential pressure sensor of the flow control unit and using the pressure information and the control signal to conduct a damper performance diagnostic. The damper performance diagnostic includes at least one of: a stuck damper diagnostic, a predictive damper failure diagnostic, an improperly-sized damper diagnostic, and a damper leakage diagnostic.

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Номер записи: 51
15-07-2021 дата публикации

ANALYZING PRESSURE DATA FROM A STATIONARY MOBILE DEVICE TO DETECT THAT A STATE OF AN AIR-CONDITIONING SYSTEM HAS CHANGED

Номер: US20210215364A1
Автор: Ivanov Pavel, NURMINEN Henri Jaakko Julius, WIROLA Lauri Aarne Johannes
Принадлежит:

Disclosed is an approach for detecting that a state of an air-conditioning system in a building has changed and ultimately determining the air-conditioning system's operating pattern, which could help improve collection and/or use of crowdsourced data for an indoor positioning solution and thus lead to more accurate position estimates. According to the disclosed approach, while a mobile device is in the building, processor(s) may detect that the mobile device is stationary and may responsively (i) cause the mobile device to provide pressure data representing air pressure in the building while the mobile device is stationary and (ii) subsequently receive the pressure data from the mobile device. And based on the pressure data indicating a pressure change and representing air pressure in the building while the mobile device is stationary, processor(s) may detect that a state of the air-conditioning system in the building has changed. 1. A method comprising:causing, by one or more processors, a mobile device to provide pressure data representing air pressure in a building while the mobile device is stationary;receiving, by the one or more processors, the pressure data from the mobile device, wherein the received pressure data indicates a pressure change; andbased on the received pressure data indicating the pressure change and representing air pressure in the building while the mobile device is stationary, detecting, by the one or more processors, that a state of an air-conditioning system in the building has changed.2. The method of claim 1 , further comprising:detecting, by the one or more processors, that the mobile device is stationary in accordance with one or more measurements by one or more inertial sensors of the mobile device,wherein causing the mobile device to provide pressure data is responsive to detecting that the mobile device is stationary.3. The method of claim 1 , wherein the received pressure data is based on pressure measurements claim 1 , performed ...

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Номер записи: 52
15-07-2021 дата публикации

EXTREMUM-SEEKING CONTROL SYSTEM WITH SATURATION CONSTRAINTS

Номер: US20210215378A1
Автор: House John M., Perez Carlos Felipe Alcala, Salsbury Timothy I.
Принадлежит: Johnson Controls Technology Company

An extremum seeking controller includes a processing circuit configured to modulate a manipulated variable provided as an input to a plant using an extremum-seeking control technique to drive a gradient of an objective function with respect to the manipulated variable toward an extremum. The objective function includes a performance variable characterizing a performance of the plant responsive to the manipulated variable. The objective function also includes a saturation adjustment term that becomes active as the plant approaches a saturation point and remains active as the plant operates within a saturated region past the saturation point. The saturation adjustment term causes the processing circuit to adjust the manipulated variable toward a value of the manipulated variable that returns the plant from the saturated region to a non-saturated region. 1. An extremum-seeking controller comprising a processing circuit configured to:modulate a manipulated variable provided as an input to a plant using an extremum-seeking control technique to drive a gradient of an objective function with respect to the manipulated variable toward an extremum; a performance variable characterizing a performance of the plant responsive to the manipulated variable; and', 'a saturation adjustment term that becomes active as the plant approaches a saturation point and remains active as the plant operates within a saturated region past the saturation point, the saturation adjustment term causing the processing circuit to adjust the manipulated variable toward a value of the manipulated variable that returns the plant from the saturated region to a non-saturated region., 'wherein the objective function comprises2. The controller of claim 1 , wherein the saturation adjustment term is based on both:a value of a saturation variable affected by the manipulated variable and capable of becoming saturated at a subset of values of the manipulated variable; anda value of the manipulated variable at ...

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Номер записи: 53
20-06-2019 дата публикации

Systems and methods for implementing a fan array with quick connect and modular control

Номер: US20190186503A1
Автор: Brian J. Motland, David Benson, Matthew Gassaway, Robert Techam
Принадлежит: Nortek Air Solutions LLC

A fan array is provided having a frame including a plurality of frame members. The frame members are joined to define a plurality of chambers. Each of a plurality of fan units is configured to be positioned in one of the plurality of chambers. Each fan unit has a motor. A plurality of local motor controllers are joined to corresponding motors. The local motor controllers are configured to control an operation of the corresponding fan unit. A master controller is configured to communicate with the local motor controllers. The master controller is configured to provide the local motor controllers with target operating parameters for the corresponding fan units.

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Номер записи: 54
27-06-2019 дата публикации

Linearization of Airflow Through Zone Dampers of an HVAC System

Номер: US20190195527A1
Автор: Maciulewicz Stephen, Puranen Christopher M.
Принадлежит:

A control system can provide a linear behavior of airflow as a function of damper position of each zone damper in an HVAC system. The control system incrementally closes each zone damper from a fully open position to a fully closed position, and records static pressure measurements with each change in damper position. Then, using a mathematical model that is derived from the second fan law, a correction is calculated for each damper position of each zone damper based on the recorded static pressure measurements to provide corrected damper positions at which the airflow through the zone damper exhibits a linear behavior. The corrected damper positions are stored and used during an operational cycle of the HVAC system to obtain a precise airflow through the zone dampers. 1. A control system to obtain a linear behavior of airflow through a zone damper of a zone of an HVAC system with a change in damper positions of the zone damper , the control system comprising:an air handler that is configured to deliver the airflow through the HVAC system;the zone damper that is configured to adjust the airflow to the zone of the HVAC system, wherein the damper positions of the zone damper comprises at least one intermediate position between a fully open position and a fully closed position; instruct the air handler to maintain a fixed airflow through the HVAC system;', 'while maintaining a fixed airflow through the HVAC system, record a static pressure across the HVAC system when the zone damper is in: (a) the fully open position, (b) the at least one intermediate position, and (c) the fully closed position;', 'wherein the corrected intermediate position is determined based on the static pressure when the zone damper is in the fully open position, the static pressure when the zone damper is in the at least one intermediate position, and the static pressure when the zone damper is in the fully closed position; and', 'determine a corrected intermediate position by applying a ...

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Номер записи: 55
29-07-2021 дата публикации

INTELLIGENT MEASURING APPARATUS

Номер: US20210231335A1
Автор: DEMUTH Ulrich, OSWALD MICHAEL, ULRICH Manfred
Принадлежит: REFCO Manufacturing Ltd.

A measuring apparatus having a housing, at least one internal sensor, an electronic control unit, at least one radio module, an operating device and an information carrier. The measuring apparatus is configured to be connected to external sensors by cable and/or wirelessly, the electronic control unit is configured to convert measurement signals from internal and external sensors into digital measurement data and to provide the digital measurement data to the information carrier. The information carrier is configured to provide and display as priority, in the case of simultaneous availability of wired or wireless sensors, either the data of the wired sensors or the data of the wireless sensors. A system for performing measurement tasks and managing measurement data, and methods for starting up and/or maintaining an air conditioning system are also provided, as well as methods for starting up and/or maintaining a system. 1. A measuring apparatus comprising:a housing;at least one internal sensor;an electronic control unit;at least one radio module;an operating device; andan information carrier,wherein the measuring apparatus is configured to be in wired and/or wireless connection with external sensors,wherein the electronic control unit is configured to convert measurement signals of internal and external sensors into digital measurement data and to provide the digital measurement data for the information carrier,wherein the information carrier is configured, in the event of simultaneous availability of wired or wirelessly connected sensors, to provide as priority and display either the data of the wired or the data of the wirelessly connected sensors.2. The measuring apparatus according to claim 1 , wherein the information carrier is arranged to indicate available sensors claim 1 , wherein in an event of a loss of a data connection to a wired sensor claim 1 , the measuring apparatus is adapted to be automatically assigned a wirelessly connectable sensor.3. The ...

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Номер записи: 56
02-08-2018 дата публикации

Systems and methods for monitoring and controlling an energy plant

Номер: US20180216842A1
Автор: Carol T. Tumey, Collin W. Eggert, Michael F. Jaeger, Nicole A. Madison, Peter A. Craig, Robert D. Turney, Tricia J. Valentine
Принадлежит: Johnson Controls Technology Co

An energy plant includes a plurality of subplants, a high level optimizer, a low level optimizer, and a controller. The plurality of subplants include a cogeneration subplant configured to generate steam and electricity and a chiller subplant electrically coupled to the cogeneration subplant and configured to consume the electricity generated by the cogeneration subplant. The high level optimizer is configured to determine recommended subplant loads for each of the plurality of subplants. The recommended subplant loads include a rate of steam production and a rate of electricity production of the cogeneration subplant and a rate of electricity consumption of the chiller subplant. The low level optimizer is configured to determine recommended equipment setpoints for equipment of the plurality of subplants based on the recommended subplant loads. The controller is configured to operate the equipment of the plurality of subplants based on the recommended equipment setpoints.

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Номер записи: 57
12-08-2021 дата публикации

Work Facility

Номер: US20210245191A1
Автор: Koike Toshihiko, Yamashita Tomoo
Принадлежит:

A work facility that is capable of adjusting an air volume without a work defect and saving energy. The opening degree of an air volume adjusting damper corresponding to a filter booth for which the individual air volume measured by a corresponding individual flowmeter is the smallest among the respective individual air volumes for the filter booths is adjusted to a completely open state, whereas the opening degree of any other air volume adjusting damper is adjusted to such an opening degree that the individual air volume for the corresponding filter booth as measured by a corresponding individual flowmeter is equal to the smallest individual air volume, and a gas discharge fan is adjusted by a total air volume adjusting mechanism so that a total air volume measured by a total flowmeter is equal to a predetermined target total air volume. 1. A work facility , comprising:a work booth in which work is performed on a work target;a plurality of filter booths including respective filter units configured to allow emission gas emitted from the work booth to flow through the filter units for removal of a removal target contained in the emission gas;a gas discharge fan configured to cause exhaust gas to be discharged from the filter booths from which exhaust gas the removal target has been removed;a plurality of air volume adjusting dampers, each corresponding to one of the plurality of filter booths, the plurality of air volume adjusting dampers having respective opening degrees adjustable to change respective individual air volumes of the exhaust gas to be discharged from the respective filter booths;a plurality of individual air flow meters, each corresponding to one of the plurality of filter booths and one of the plurality of air volume adjusting dampers, the plurality of individual air flow meters adapted to measure the respective individual air volumes;a total air flow meter adapted to adjust an output of the gas discharge fan to change a total air volume, which is a ...

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Номер записи: 58
02-07-2020 дата публикации

Actuators with condition tracking

Номер: US20200208862A1
Автор: David Zeman, Frantisek Krivanek, Lubos Sikora, Miroslav Mikulica
Принадлежит: Honeywell International Inc

An actuator may include a drive motor, an actuatable output, and a sensor for sensing a first sensed parameter in or around the actuator. The first sensed parameter may have a first sensed parameter value that can change with time. The actuator may also include electronics that may identify a first identified value representative of the first sensed parameter value and increment a first counter value when the first identified value falls within a first range of values, and increment a second counter value when the first identified value falls within a second range of values.

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Номер записи: 59
18-07-2019 дата публикации

AIR DUCT AIRFLOW SENSOR

Номер: US20190219430A1
Автор: Scholten Jean H.
Принадлежит:

An airflow sensor assembly for an air duct is provided. The airflow sensor assembly includes an air duct having an interior wall and an exterior wall, a high pressure detection device, and a low pressure detection device. The low pressure detection device includes a hollow ring disposed within the interior wall of the air duct. The hollow ring includes an inner periphery portion, an outer periphery portion, and a first set of apertures defined therein. The first set of apertures is spaced around the inner periphery portion of the hollow ring. The airflow sensor assembly further includes a pressure sensor fluidly coupled to the high pressure detection device and the low pressure detection device. 1. An airflow sensor assembly for an air duct , the air duct having an interior wall and an exterior wall; comprising:a high pressure detection device; a hollow ring configured to be disposed within the interior wall of the air duct, the hollow ring having an inner periphery portion and an outer periphery portion; and', 'a first plurality of apertures defined therein and spaced around the inner periphery portion of the hollow ring; and, 'a low pressure detection device, comprisinga pressure sensor configured to be fluidly coupled to the high pressure detection device and the low pressure detection device.2. The airflow sensor assembly of claim 1 , wherein the low pressure detection device further comprises:a first connecting opening disposed within the outer periphery portion of the hollow ring; anda first tube fluidly coupled to the first connecting opening.3. The airflow sensor assembly of claim 2 , wherein the high pressure detection device comprises:a second plurality of apertures defined therein and spaced around the inner periphery of the air duct;a gasket having a recessed area defined therein and a second connecting opening, the gasket being fitted over the exterior wall and proximate the second plurality of apertures; anda second tube fluidly coupled to the second ...

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Номер записи: 60
09-07-2020 дата публикации

Exhaust ventilation system with ultrasonic sensors for taking air velocity measurements and calibrating pressure sensors

Номер: US20200217541A1
Автор: Ales Litomisky, Krystof Litomisky
Принадлежит: Ecogate Inc

An air pressure measuring ventilation system, comprising: at least one duct; at least one motorized exhaust fan; one or more ultrasonic sensors; one or more infrared spark detectors; and one or more air pressure sensors. The at least one motorized exhaust fan may draw air through the at least one duct. The one or more air pressure sensors may be placed on a side of the at least one duct such that an air pressure is measured as the air is drawn through the at least one duct, such that a plurality of air pressure measurements are generated. The one or more air pressure sensors may be substantially flush with an interior side of the at least one duct and do not obstruct the air as the air is drawn through the at least one duct.

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Номер записи: 61
25-07-2019 дата публикации

SELF-CONTAINED PRE-MANUFACTURED AIR UNIT FOR INSTALLATION ON A ROOF OF A BUILDING

Номер: US20190226700A1
Автор: Tollar Greig
Принадлежит: 1270979 Ontario Inc.

A self-contained pre-manufactured air unit for installation on a roof of a building and method of operation thereof has a relief passage for connection to a building to receive relief air from the building when air pressure within the building exceeds a pressure of ambient air. The relief passage is independent of an air circulation system and is located to exhaust relief air over the condenser coil to ambient air through at least one condenser fan, thereby decreasing a temperature of a refrigerant in the condenser coil. 1. A self-contained pre-manufactured air unit for installation on a roof of a building , for circulating air through the building , the unit comprising a housing having a blower therein , a condenser coil containing refrigerant and a compressor , a first passage to supply air to the building , a second passage to receive return air from the building , the blower connected to circulate air into and out of the building through the first passage and the second passage respectively , the blower and the first passage and second passage comprising an air circulation system that is located in a second portion of the housing , a relief passage for connection to the building to receive relief air from the building when air pressure within the building exceeds a pressure of ambient air , the relief passage being independent of the air circulation system and located to exhaust relief air over the condenser coil to ambient air through at least one condenser fan , thereby decreasing a temperature of the refrigerant , the relief passage and at least one condenser coil located in a first portion of the housing.2. The air unit as claimed in wherein the first portion of the housing is ambient air accessible to an area of the relief passage to allow ambient air to mix with relief air and to flow over the condenser coil.3. The air unit as claimed in wherein the first portion of the housing is open to ambient air near the relief passage.4. The air unit as claimed in ...

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Номер записи: 62
16-07-2020 дата публикации

SYSTEM AND METHOD FOR CONTROLLING BUILDING FLUID DISTRIBUTION

Номер: US20200224903A1
Автор: Johnson Mark David
Принадлежит:

A system and method is provided for controlling building fluid distribution. The system may cause a variable air volume building ventilation system to operate at different combinations of different fan speeds for different damper opening configurations. For each different combination of fan speed and damper opening configuration, the system may: determine a static pressure measurement for each terminal unit based on a flow measurement determined by terminal box controllers using a pressure sensor; and determine a static pressure measurement for the supply fan from a pressure sensor mounted in a ventilation duct downstream of the at least one supply fan and upstream of each terminal unit. The system may also determine and store in each terminal box controller, a friction loss coefficient based on the static pressure measurements for the supply fan and the terminal units. 1. A system for controlling building fluid distribution comprising: cause a variable air volume (VAV) building ventilation system to operate at different combinations of a plurality of different fan speeds for at least one supply fan for a plurality of different damper opening configurations of a plurality of dampers that are controlled by a plurality of respective terminal box controllers and that are included in terminal units positioned at a plurality of ventilation duct branches;', determine a static pressure measurement for each terminal unit based at least in part on at least one flow measurement determined by each terminal box controller using a pressure sensor; and', 'determine a static pressure measurement for the supply fan from a pressure sensor mounted in a ventilation duct downstream of the at least one supply fan and upstream of each of the terminal units;, 'for each different combination of fan speed and damper opening configuration, 'determine for each terminal box controller, at least one friction loss coefficient based on the static pressure measurements for the supply fan and for ...

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Номер записи: 63
26-08-2021 дата публикации

MULTI-SPLIT AIR-CONDITIONING SYSTEM, AND METHOD FOR CALCULATING HEAT EXCHANGE CAPACITY THEREOF

Номер: US20210262688A1
Автор: LI Yinyin, Liu Jingsheng, Ren Tao, Song Qiang, WANG Bing
Принадлежит:

A multi-split air-conditioning system, and a method for calculating a heat exchange capacity thereof. The method includes: acquiring a total heat exchange capacity of a multi-split air-conditioning system; acquiring a pressure difference between two pressure measurement points on each air pipe; acquiring the distance between the two pressure measurement points on each air pipe; acquiring the pipe diameter of each air pipe; acquiring the friction factor of each air pipe; acquiring the density of a heat exchange medium in each air pipe; and according to the total heat exchange capacity of the multi-split air-conditioning system, the pressure difference and distance between the two pressure measurement points on each air pipe, the pipe diameter and friction factor of each air pipe, and the density of the heat exchange medium in each air pipe, calculating a heat exchange capacity of each indoor unit. 110-. (canceled)11. A method for calculating a heat exchange amount of a multi-connected air conditioning system , wherein the multi-connected air conditioning system comprises a plurality of indoor units , and two pressure measurement points are provided on an air pipe of each of the indoor units; the method for calculating the heat exchange amount comprising:obtaining a total heat exchange amount of the multi-connected air conditioning system;obtaining a pressure difference between the two pressure measurement points on each of the air pipes;obtaining a distance between the two pressure measurement points on each of the air pipes;obtaining a pipe diameter of each of the air pipes;obtaining a friction factor of each of the air pipes;obtaining a density of a heat exchange medium in each of the air pipes; andcalculating the heat exchange amount of each of the indoor units according to the total heat exchange amount of the multi-connected air conditioning system, the pressure difference between the two pressure measurement points on each of the air pipes, the distance between ...

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Номер записи: 64
23-08-2018 дата публикации

Air conditioner and its operating method

Номер: US20180238580A1
Автор: Hideaki Furumoto, Hirofumi Komori, Takuya ISHIMATSU, Yosuke Ikeda
Принадлежит: Shinwa Controls Co Ltd

An air conditioner includes: a cooling unit having a compressor operated at a variable operating frequency to adjust a revolving speed thereof, a condenser, an expansion valve and a cooling coil; and a heating unit for causing the heating medium flowing from the compressor toward the condenser to diverge, and to return to flow into the condenser, through a heating coil and a thermal dose adjusting valve disposed on the downstream side thereof; so as to control a temperature of air by the cooling and heating coils. When an opening manipulated variable of the thermal dose adjusting valve exceeds a first threshold value over a period of time, an operating frequency of the compressor is decreased, and when the opening manipulated variable of the thermal dose adjusting valve falls below a smaller, second threshold value, over the said period of time, the operating frequency of the compressor is increased.

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Номер записи: 65
30-09-2021 дата публикации

ENCAPSULATED CLEANROOM SYSTEM

Номер: US20210302034A1
Автор: HARA Shiro, ISHIDA Yuuki, KHUMPUANG Sommawan, MAEKAWA Hitoshi, YAJIMA Takashi
Принадлежит:

An encapsulated cleanroom system comprising a processing chamber and a storage section in which the processing chamber is stored, wherein, during operation, the pressure in the storage section is lower or higher than the pressures in the processing chamber and exterior space. The system can simultaneously prevent the entry of outside gases into its processing chamber and the leakage of the gases inside the processing chamber to the exterior space. 1. An encapsulated cleanroom system comprising a processing chamber and a storage section in which the processing chamber is stored , characterized in that , during operation , a pressure in the storage section is lower or higher than pressures in the processing chamber and exterior space.2. The encapsulated cleanroom system according to claim 1 , characterized in that absolute values of pressure differences between the storage section and the processing chamber and exterior space are 0.1 Pa or greater but no greater than 10 Pa.3. The encapsulated cleanroom system according to claim 1 , characterized in that clean gases are supplied to the processing chamber and claim 1 , during operation claim 1 , a pressure in the storage section is lower than pressures in the processing chamber and exterior space.4. The encapsulated cleanroom system according to claim 1 , characterized in that clean gases are supplied to the storage section and claim 1 , during operation claim 1 , a pressure in the storage section is higher than pressures in the processing chamber and exterior space.5. The encapsulated cleanroom system according to claim 2 , characterized in that clean gases are supplied to the processing chamber and claim 2 , during operation claim 2 , a pressure in the storage section is lower than pressures in the processing chamber and exterior space.6. The encapsulated cleanroom system according to claim 2 , characterized in that clean gases are supplied to the storage section and claim 2 , during operation claim 2 , a pressure in ...

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Номер записи: 66
06-09-2018 дата публикации

Methods of approximating physical and or chemical properties of air in buildings as well as reducing the consumption of other resources associated with operating buildings

Номер: US20180252424A1
Автор: Andreas Hieke, II William Boone Daniels
Принадлежит: Individual

Disclosed are methods for at least approximating any one or any combination of system targets of a) reducing the average energy expenditure for keeping at least one primary compartment of a building within a desired temperature range by means of active e air conditioning, or b) reducing temperature variations during a typical 24-hour cycle within said at least one primary compartment of said building, or c) reducing one or both of the average temperature or the peak temperature of said at least one primary compartment of said building. The invention concerns predominantly enclosed spaces, typically buildings, which are at least exposed to directionally and temporally varying levels of solar electromagnetic radiation as well as temporally varying levels of ambient air temperature and ambient air flow velocity and direction. Such a building comprising at least one primary compartment and at least one secondary compartment, and wherein said primary compartment predominantly serves to achieve the primary purpose of the building. The disclosed methods are furthermore at least in part based on at least one electronic controller, which is able to one or both of a) controlling means to modulate the amount of passive air flow to and from said at least one secondary compartment, and b) controlling means to modulate the amount of actively driven air flow to and from said at least one secondary compartment, and said electronic controller furthermore comprising at least one, at least partially descriptive, analytical and/or, numerical, and/or reduced order model to at least approximately compute, i.e. predict, the thermal behavior of said building, and said controller using said at least partially descriptive model to derive control signals suitable to at least approximate said at least one system target. In some embodiments the disclosed methods are at least partially incorporated in a home automation system, including optionally internet connectivity. In some embodiments the ...

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Номер записи: 67
15-08-2019 дата публикации

VENT AND FLASHING SYSTEM

Номер: US20190249439A1
Автор: Oddy Ryan Edward
Принадлежит:

A vent and flashing system; the vent and flashing system includes a vent and flashing assembly including a base plate, a vent, an internal check valve and a cover. The vent and flashing system is capable of being mounted to a roof deck and counter flashed using existing metal panels. 1. A vent and flashing system for installation on a metal roof , the metal roof including a plurality of panels , the plurality of panels each having a plurality of ribs thereon , the vent and flashing system comprising: a base plate including a flexible bottom;', 'a vent having a shape with a bottom-end wider than a top-end;', 'an internal check valve installed in the vent; and', 'a cover for removable placement over the vent., 'a vent and flashing assembly including2. The vent and flashing system of claim 1 , further comprising a cap for covering the internal check valve.3. The vent and flashing system of claim 1 , wherein the shape of the vent is substantially triangular.4. The vent and flashing system of claim 1 , wherein the shape of the vent is substantially “A”-shaped.5. The vent and flashing system of claim 1 , wherein the internal check valve includes a first port end and a second port end.6. The vent and flashing system of claim 5 , wherein the first port end is configured to exhaust fluid and gas.7. The vent and flashing system of claim 5 , wherein the second port end is configured to inhibit penetration by fluid and gas.8. The vent and flashing system of claim 1 , wherein the flexible bottom is configured to be mounted flush to a surface of the metal roof and create a watertight seal.9. The vent and flashing system of claim 1 , wherein the base plate is substantially constructed from a sheet metal.10. The vent and flashing system of claim 8 , wherein the flexible bottom of the base plate is constructed from a rubber material.11. The vent and flashing system of claim 1 , wherein the base plate is a triangular shape.12. The vent and flashing system of claim 1 , wherein the ...

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Номер записи: 68
13-09-2018 дата публикации

CHARACTERIZING AND USING BUILDING WEATHER PROFILE PARAMETERS

Номер: US20180259212A1
Автор: DORMODY MICHAEL, HAN GUIYUAN, Pattabiraman Ganesh, Wolf Thomas
Принадлежит:

Determining building weather profile parameters, and correcting an estimated altitude of a receiver using the building weather profile parameters. Systems and methods for estimating an altitude of a receiver using building weather profile parameters may identify one or more weather profile parameters for a building, determine an initial estimate of a receiver's altitude at a floor inside the building, and use the initial estimate and the identified weather profile parameters to determine a corrected estimate of the receiver's altitude at the floor. 1. A method for estimating an altitude of a receiver using building weather profile parameters , the method comprising:identifying one or more weather profile parameters for a building;determining an initial estimate of a receiver's altitude at a floor inside the building; andusing the initial estimate and the identified weather profile parameters to determine a corrected estimate of the receiver's altitude at the floor.2. The method of claim 1 , wherein identifying the one or more weather profile parameters for the building comprises:determining indoor pressures at different altitudes of the building;determining indoor temperatures at the different altitudes of the building;determining a pressure difference between the determined indoor pressure and a corresponding outdoor pressure for each of the different altitudes;determining a temperature difference between the determined indoor temperature and a corresponding outdoor temperature for each of the different altitudes;storing the determined pressure differences and the determined temperature differences;generating one or more weather profile parameters associated with the building using the determined pressure differences and the determined temperature differences; andstoring the one or more weather profile parameters.3. The method of claim 2 , wherein the pressure differences and the temperature differences are determined by:determining an outdoor pressure;determining ...

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Номер записи: 69
22-08-2019 дата публикации

SYSTEMS AND METHODS FOR ENERGY RECOVERY OF AN HVAC SYSTEM

Номер: US20190257538A1
Автор: Ferrere Marcel P., Gupte Neelkanth S., Karkhanis Rajiv K.
Принадлежит:

The present disclosure relates to a heating, ventilation, and air conditioning (HVAC) system that includes an energy recovery conduit that is configured to extend between and fluidly couple an outlet of a central housing of an outdoor HVAC unit and a condenser section of the outdoor HVAC unit. 1. A heating , ventilation , and air conditioning (HVAC) system , comprising:an energy recovery conduit configured to extend between and fluidly couple an outlet of a central housing of an outdoor HVAC unit and a condenser section of the outdoor HVAC unit.2. The HVAC system of claim 1 , wherein the energy recovery conduit comprises a damper positioned at an end of the energy recovery conduit claim 1 , and a controller coupled to the damper claim 1 , wherein the controller is configured to actuate the damper based on feedback received from a sensor of the HVAC system.3. The HVAC system of claim 2 , comprising the sensor claim 2 , wherein the sensor is configured to detect a temperature of an air flow within the energy recovery conduit claim 2 , a temperature of ambient air claim 2 , a temperature of an exhaust air flow directed to the outdoor HVAC unit claim 2 , or a combination thereof.4. The HVAC system of claim 2 , wherein the end of the energy recovery conduit is proximate to an exhaust duct configured to receive an air flow from a cooling load of the HVAC system.5. The HVAC system of claim 1 , comprising an economizer section claim 1 , wherein the economizer section is configured to receive outdoor air and a first portion of exhaust air claim 1 , the economizer section is configured to discharge a mixture of the outdoor air and the first portion of the exhaust air as supply air of the outdoor HVAC unit claim 1 , and wherein the energy recovery conduit is configured to receive a second portion of the exhaust air bypassing the economizer section.6. The HVAC system of claim 1 , wherein the energy recovery conduit comprises a first end portion comprising a first outlet ...

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Номер записи: 70
11-11-2021 дата публикации

Air filter condition sensing

Номер: US20210346833A9
Автор: Daniel W. Hennen, Dennis M. Glass, Douglas D. Fletcher, Eric O. Hemberg, Gene B. Portelli, Jayant Chakravarty, Jonathan B. Arthur, Karl W. BLOEDORN, Lyle L. LUPPES, Michael A. Meis, Oscar M. Hemberg
Принадлежит: 3M Innovative Properties Co

An air filter includes filter media, a sensor, and circuitry coupled to the sensor, the circuitry configured to receive data from the sensor representative of the condition of the filter media and wirelessly transmit such data. The data may be received by a device with a display to use the information to present an indication of the filter media condition to a user.

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Номер записи: 71
29-08-2019 дата публикации

Controller, method and computer program product using a neural network for adaptively controlling an environmental condition in a building

Номер: US20190264943A1
Автор: Dominic Gagnon
Принадлежит: Distech Controls Inc

Environmental condition controller and method for controlling an environmental condition in an area of a building. The controller stores a predictive model generated by a neural network training engine, and a previously calculated environmental condition adjustment value (y n−1 ). The controller receives an environmental condition target value (x ref ), and an environmental condition measured value (x). The controller recursively calculates an environmental condition adjustment value (y n ) by executing a neural network inference engine using the predictive model for inferring the environmental condition adjustment value (y n ) based on the previously calculated environmental condition adjustment value (y n−1 ), the environmental condition target value (x ref ), the environmental condition measured value (x), and an adaptive proportionality value (k). The controller also generates and transmits a command based on the environmental condition adjustment value (y n ). The controller further stores the calculated environmental condition adjustment value (y n ) as the previously calculated environmental condition adjustment value (y n−1 ).

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Номер записи: 72
20-08-2020 дата публикации

LINEARIZATION OF AIRFLOW THROUGH ZONE DAMPERS OF AN HVAC SYSTEM

Номер: US20200263896A1
Автор: Maciulewicz Stephen, Puranen Christopher M.
Принадлежит:

A control system can provide a linear behavior of airflow as a function of damper position of each zone damper in an HVAC system. The control system incrementally closes each zone damper from a fully open position to a fully closed position, and records static pressure measurements with each change in damper position. Then, using a mathematical model that is derived from the second fan law, a correction is calculated for each damper position of each zone damper based on the recorded static pressure measurements to provide corrected damper positions at which the airflow through the zone damper exhibits a linear behavior. The corrected damper positions are stored and used during an operational cycle of the HVAC system to obtain a precise airflow through the zone dampers. 1. A control system to obtain a linear behavior of airflow through a zone damper of a zone of an HVAC system with a change in damper positions of the zone damper , the control system comprising:an air handler that is configured to deliver the airflow through the HVAC system;the zone damper that is configured to adjust the airflow to the zone of the HVAC system, wherein the damper positions of the zone damper comprises at least one intermediate position between a fully open position and a fully closed position; instruct the air handler to maintain a fixed airflow through the HVAC system;', 'while maintaining a fixed airflow through the HVAC system, record a static pressure across the HVAC system when the zone damper is in: (a) the fully open position, (b) the at least one intermediate position, and (c) the fully closed position;', 'wherein the corrected intermediate position is determined based on the static pressure when the zone damper is in the fully open position, the static pressure when the zone damper is in the at least one intermediate position, and the static pressure when the zone damper is in the fully closed position; and', 'determine a corrected intermediate position by applying a ...

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Номер записи: 73
09-12-2021 дата публикации

FILTER LIFE PREDICTION METHOD AND FILTER TYPE DETECTION METHOD

Номер: US20210379520A1
Автор: Kralev Yordan Konstantinov, Prigge Grant
Принадлежит:

A method to predict the lifespan of an air filter including providing pressure sensors in a device having an air filter and a fan to drive air through the air filter, one pressure sensor located on an intake side of the fan and one pressure sensor located on an outflow side of the fan, periodically calculating a static pressure drop across the fan, storing the static pressure drop daily; calculating an average pressure drop, calculating a cumulative particle loading on the filter, comparing the cumulative particle loading with a pre-determined maximum particle loading for the filter, and determining if the filter needs to be changed is provided. 1. A method to predict the lifespan of an air filter comprising the steps of:providing pressure sensors in a device having an air filter and a fan to drive air through the air filter, wherein one pressure sensor is located on an intake side of the fan and one pressure sensor is located on an outflow side of the fan, and a static pressure drop is calculated periodically from measurements obtained by the pressure sensors;storing the static pressure drop on a daily basis over a period of days;calculating an average pressure drop from the stored static pressure drop information;calculating a cumulative particle loading on the filter;comparing the cumulative particle loading with a pre-determined maximum particle loading for the filter;if the cumulative particle loading is greater than the maximum particle loading, then indicating through the user interface that the filter should be changed;if the cumulative particle loading is less than the maximum particle loading, (a) calculating the days of life of the filter remaining; (b) calculating a drop in the clean air delivery rate; and/or (c) calculating a filter state as the drop in clean air delivery rate divided the clean air delivery rate of a new filter.2. The method to predict the lifespan of an air filter of claim 1 , wherein the device is an air purifier.3. The method to ...

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Номер записи: 74
15-10-2015 дата публикации

Air handling vent control

Номер: US20150292751A1
Автор: David A. Divine, David S. Thompson
Принадлежит: David A. Divine, David S. Thompson

Techniques for use with vent covers of furnace ductworks are described herein. A vent cover may include a fan to actively pull air from the ductwork and into a room at least in part in response to a number of open or closed vents in ductwork to which the vent cover is connected. Active air movement through the vent cover may lower air pressure and/or temperature within the ductwork and increase airflow through heat exchangers of the furnace, thereby compensating for zones created by closed vent covers. A system may monitor factors consistent with a furnace over-temperature event, such as furnace operation, closed vent covers, high air pressure or temperature in ductwork, etc. A fan of a vent cover may be turned on to actively draw air through a vent covered by the vent cover. The fan may turn off after conclusion of at least one of the monitored factors.

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Номер записи: 75
03-09-2020 дата публикации

METHOD OF MONITORING AN AIR FLOW IN A ZONE OF AN HVAC SYSTEM

Номер: US20200278129A1
Автор: LEHNERT Frank, Niederhauser Urs, SCHMIDLIN Peter, THUILLARD Marc
Принадлежит: Belimo Holding AG

A method of monitoring an air flow in a zone () of an HVAC system () is described, the zone () comprising a supply port () and a return port (), a first flow sensor () configured to measure a supply flow (ϕ) through the supply port (), and a second flow sensor () configured to measure a return flow (ϕ) through the return port (), the method comprising: recording by a control system () the supply flow (ϕ) measured by the first flow sensor () and the return flow (ϕ) measured by the second flow sensor (); determining by the control system (′) an infiltration and exfiltration component (ϕ), using the supply flow (ϕ) and the return flow (ϕ) recorded by the control system (); and determining by the control system () an operational sensor state of at least one of the first flow sensor () and the second flow sensor (), using the supply flow (ϕ), the return flow (ϕ), and the infiltration and exfiltration component (ϕ). 111101011111211112112. A method of monitoring an air flow in a zone ( , ′) of an HVAC system ( , ′) , the zone ( , ′) comprising a supply port () and a return port () , a first flow sensor () configured to measure a supply flow (ϕ) through the supply port , and a second flow sensor () configured to measure a return flow (ϕ) through the return port () , the method comprising:{'b': 20', '20', '111', '121, 'sub': 1', '2, 'recording by a control system (, ′) the supply flow (ϕ) measured by the first flow sensor () and the return flow (ϕ) measured by the second flow sensor ();'}{'b': 20', '20', '20', '20, 'sub': inf/exf', '1', '1, 'determining by the control system (, ′) an infiltration and exfiltration component (ϕ), using the supply flow (ϕ) and the return flow (ϕ) recorded by the control system (, ′); and'}{'b': 20', '20', '111', '121, 'sub': 1', '2', 'inf/exf, 'determining by the control system (, ′) an operational sensor state of at least one of the first flow sensor () and the second flow sensor (), using the supply flow (ϕ), the return flow (ϕ), and the ...

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Номер записи: 76
11-10-2018 дата публикации

MODULAR, HIGH-THROUGHPUT AIR TREATMENT SYSTEM

Номер: US20180290097A1
Автор: Biran Israel, Meirav Udi
Принадлежит: ENVERID SYSTEMS, INC.

Air treatment modules, systems and methods for removing contaminants from indoor air are provided. Device embodiments may include one or more air inlets, one or more air outlets and a plurality of inserts which each include at least one adsorbent material. The inserts may be arranged separate from each other to form a plurality of substantially parallel air flow paths between the one or more air inlets and one or more air outlets. The adsorbent material may be arranged for regeneration within the air treatment module using thermal swing desorption and/or pressure swing desorption. Related systems, methods and articles of manufacture are also described. 1. An air treatment module for removing contaminants from indoor air , the module comprising:one or more air inlets;one or more air outlets; and 'wherein the at least one adsorbent material is arranged for regeneration within the air treatment module using at least one of thermal swing desorption and pressure swing desorption.', 'a plurality of inserts which each include at least one adsorbent material and are arranged separate from each other to form a plurality of substantially parallel air flow paths between the one or more air inlets and one or more air outlets,'}2. The air treatment module of claim 1 , further comprising a support frame having one or more structural support members for supporting the plurality of inserts claim 1 , wherein:the one or more air inlets and one or more air outlets are formed by the support frame and the plurality of inserts.3. The air treatment module of claim 1 , wherein the air treatment module is configured for incorporation within a heating claim 1 , ventilation and/or air conditioning system.4. The air treatment module of claim 3 , further comprising one or more valves configured to control the amount of indoor air flowing between the air treatment module and the heating claim 3 , ventilation and/or air conditioning system.5. The air treatment module of claim 2 , wherein the ...

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Номер записи: 77
19-09-2019 дата публикации

HEAT EXCHANGER BLOCKAGE DETECTION

Номер: US20190285297A1
Автор: Ensberg Joseph J., SMITH MATTHEW J., Zywiak Thomas M.
Принадлежит:

A system and method includes at least one heat exchanger, a ram fan, and a controller. The ram fan is driven by a motor. A motor control circuit is configured to provide power to the motor to drive the ram fan. The ram fan is configured to provide a ram flow through the at least one heat exchanger from a ram air inlet. The controller is configured to determine a blockage level of the at least one heat exchanger based on the power to the motor, a speed of the ram fan, and a temperature of the ram flow at the ram fan. 1. A system comprising:at least one heat exchanger;a ram fan driven by a motor, wherein a motor control circuit is configured to provide power to the motor to drive the ram fan, wherein the ram fan is configured to provide a ram flow through the at least one heat exchanger from a ram air inlet; anda controller configured to determine a blockage level of the at least one heat exchanger based on the power to the motor, a speed of the ram fan, and a temperature of the ram flow at the ram fan.2. The system of claim 1 , wherein the at least one heat exchanger comprises:a primary heat exchanger positioned to provide cooling for a compressed air flow using the ram flow; andat least one secondary heat exchanger.31. The system of claim 1 , wherein the controller is configured to determine a corrected speed using the speed of the ram fan and the temperature of the ram flow at an inlet to the ram fan.4. The system of claim 3 , further comprising a temperature sensor positioned to sense the temperature of the ram flow and provide the temperature of the ram flow at the inlet to the ram fan to the controller.5. The system of claim 3 , wherein the controller is further configured to estimate the temperature of the ram flow at the inlet to the ram fan based at least in part on an ambient temperature.6. The system of claim 3 , wherein the controller is configured to determine a first reference current using the corrected speed claim 3 , wherein the first reference ...

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Номер записи: 78
17-09-2020 дата публикации

SYSTEM AND METHOD FOR ACCESS CONTROL USING DIFFERENTIAL AIR PRESSURE

Номер: US20200292187A1
Автор: Naughton Thomas P.
Принадлежит:

An access control system receives a trigger command for controlling a ventilation system; determines that the trigger command includes a lock trigger to hold an entrance door in a closed position; and induces a locking differential air pressure between opposite sides of the entrance door in response to the lock trigger, where the locking differential air pressure is sufficient to bias the entrance door to contact or to increase contact with a door frame in the closed position. The access control system may also determine that the trigger command includes an open assist trigger to ease an opening of the entrance door; and may induce an opening differential air pressure between the opposite sides of the entrance door in response to the open assist trigger, where the opening differential air pressure is sufficient to bias the entrance door to reduce contact with the door frame in the closed position.

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Номер записи: 79
25-10-2018 дата публикации

LOW FLOW FLUID CONTROLLER APPARATUS AND SYSTEM

Номер: US20180306458A1
Автор: Karamanos John C., Willke Herbert
Принадлежит:

An air distribution apparatus that serves as a single sensing device for both lighting, LiFi, and HVAC functions that are operable on a single platform by building automation systems. The building automation system may be controllable by a single software system or network accessible locally on site or remotely off site. The air distribution apparatus can operate in a single zone or coupled with multiple like apparatuses for multi-zone operation. It is a high turndown, self-balancing system which allows for continuous commissioning with built-in fault diagnostic systems and that may be used as a supply, return, or exhaust system, or a combination thereof. The air distribution apparatus includes multi-stage airflow control systems that operate progressively based on unique actuation mechanisms and/or algorithms that allow for precise flow control and feedback to self-balance and commission the system. 120-. (canceled)21. A fluid flow control apparatus comprising: wherein the low flow blade set includes at least one blade and the high flow blade set includes at least one blade, and', i. closed angular orientations where lateral edges of adjacent blades overlap and are adjacent, with no portion of the fluid flow path extending past the overlapping lateral edges of the blades of the blade sets; and', 'ii. open angular orientations angularly offset from the closed orientations thereby establishing a portion of the fluid flow path extending past the blades of the blade sets;, 'wherein the blades are each pivotable about an associated one of a set of mutually parallel pivot axes, between], 'A. a low flow blade set, and a high flow blade set disposed in a support structure,'}B. an actuator assembly including at least one actuator;C. a linkage assembly coupling the blades of the blades of the respective blade sets to the at least one actuator of the actuator assembly;{'sub': 'F', 'wherein the actuator assembly is adapted to independently control the angular orientations of ...

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Номер записи: 80
10-10-2019 дата публикации

TESTING SYSTEMS AND METHODS FOR PERFORMING HVAC ZONE AIRFLOW ADJUSTMENTS

Номер: US20190310831A1
Автор: Atchison Shaun B., Burns Jonathan A., Gillette Theresa N., Hern Shawn A., McCune Tyler P., Rigg Brian D., Uerkvitz John W.
Принадлежит:

A heating, ventilation, and air conditioning (HVAC) system may include a HVAC unit that may control air flow, a first control system that may directly control operation of equipment in the HVAC unit, and a second control system communicatively coupled to the first control system. The second control system may be located in a different zone of a building as compared to the first control system, such that the second control system may receive a request to adjust the air flow output by the HVAC unit and send a command to the first control system based on the request. The command may cause the first control system to adjust the operation of the equipment in the HVAC unit to cause the air flow output by the HVAC unit to be adjusted according to the request. 1. A heating , ventilation , and air conditioning (HVAC) system comprising:a HVAC unit configured to control air flow;a first control system configured to directly control operation of equipment in the HVAC unit; receive a request to adjust the air flow output by the HVAC unit; and', 'send a command to the first control system based on the request, wherein the command is configured to cause the first control system to adjust the operation of the equipment in the HVAC unit to cause the air flow output by the HVAC unit to be adjusted according to the request., 'a second control system communicatively coupled to the first control system, wherein the second control system is located in a different zone of a building as compared to the first control system, wherein the second control system is configured to2. The HVAC system of claim 1 , wherein the second control system is configured to:identify one or more zones of the building that are fluidly coupled to a respective zone of the building associated with the second control system; andgenerate a visualization comprising the one or more zones for display via an electronic display of the second control system.3. The HVAC system of claim 2 , wherein the second control system ...

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Номер записи: 81
08-10-2020 дата публикации

HVAC APPARATUS WITH ALERTING FUNCTION OF COMPONENT EFFICACY DECLINING, AND ALERTING METHOD FOR THE SAME

Номер: US20200318841A1
Автор: Chang Tse-Wen, Cheng Wen-Yen
Принадлежит:

A method for alerting component efficacy declining of HVAC apparatus includes: continually recording working time of a fan of an HVAC apparatus and controlling a pressure-difference transmitter arranged on both sides of a filter of the HVAC apparatus for calculating current pressure difference; calculating a first-stage slope based on a first pressure-difference condition, an initial pressure difference, and an accumulated working time of the fan when the current pressure difference reaches the first pressure-difference condition; calculating a second-stage slope based on a second pressure-difference condition, the first pressure-difference condition, and the accumulated working time of the fan when the current pressure difference reaches the second pressure-difference condition; predicting a remaining lifetime of the filter based on the first-stage slope if a comparison result between the two slopes is smaller than or equal to a threshold; otherwise, predicting the remaining lifetime of the filter based on the second-stage slope. 1. A method for alerting component efficacy declining of heating , ventilation and air conditioning (HVAC) apparatus , the method applied to an HVAC apparatus at least having a fan , a filter and a pressure-difference transmitter for sensing pressure difference at two sides of the filter , the method comprising:a) obtaining a target pressure-difference condition for the HVAC apparatus and calculating a first pressure-difference condition and a second pressure-difference condition based on the target pressure-difference condition, wherein the second pressure-difference condition is smaller than the target pressure-difference condition and the first pressure-difference condition is smaller than the second pressure-difference condition;b) controlling the HVAC apparatus to operate, continually recording a working time of the fan and continually calculating a current pressure difference by the pressure-difference transmitter;c) calculating a ...

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Номер записи: 82
22-10-2020 дата публикации

Method and device for controlling ventilation amount with respect to sealed pipe

Номер: US20200332510A1
Автор: Jae Wang CHUNG, Kyu Chul JUNG, Shi Cheal SHIN, Yong Sog Kwon
Принадлежит: SCENTEC Inc

The present disclosure relates to a method of controlling a ventilatory volume for inhibiting a release of a harmful gas such as an offensive odor or a toxic substance from a closed-type duct. The method of controlling a ventilatory volume is characterized in that (i) the closed-type duct is divided into a single main duct and multiple branch ducts in a planned area and depends on a harmful gas prevention closed-type duct model in which a negative pressure may be formed by a separately provided means for forcedly discharging gas, (ii) in a state in which no forced gas discharge from the closed-type duct is made, the harmful gas is determined as a standard flow velocity by comparing inverse velocity values of natural positive-pressure flow velocities according to a difference in temperature, a difference in concentration, a difference in elevation of the duct, a stack effect, and the like, (iii) the standard flow velocity is assigned in a lump to flow velocities in the single main duct and the multiple branch ducts provided in the closed-type duct, a sum of the flow rate in the main duct and the flow rate in the multiple branch ducts is basically determined as a ventilatory volume by the means for forcedly discharging gas, and particularly, only the flow rates in the branch duct at the junction points are corrected and determined in a lump based on a ratio of a pressure loss in the main duct to a pressure loss in the branch duct. The method of controlling a ventilatory volume may be applied to the closed-type duct having various usages and shapes and may provide a quantitative criterion related to a minimum ventilatory volume required to inhibit a release of a harmful gas, thereby reducing costs, maximizing operational efficiency, and an operational criterion practical to various types of ventilation devices.

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Номер записи: 83
29-11-2018 дата публикации

Systems and methods for monitoring and controlling an energy plant

Номер: US20180340702A9
Автор: Carol T. Tumey, Collin W. Eggert, Michael F. Jaeger, Nicole A. Madison, Peter A. Craig, Robert D. Turney, Tricia J. Valentine
Принадлежит: Johnson Controls Technology Co

An energy plant includes a plurality of subplants, a high level optimizer, a low level optimizer, and a controller. The plurality of subplants include a cogeneration subplant configured to generate steam and electricity and a chiller subplant electrically coupled to the cogeneration subplant and configured to consume the electricity generated by the cogeneration subplant. The high level optimizer is configured to determine recommended subplant loads for each of the plurality of subplants. The recommended subplant loads include a rate of steam production and a rate of electricity production of the cogeneration subplant and a rate of electricity consumption of the chiller subplant. The low level optimizer is configured to determine recommended equipment setpoints for equipment of the plurality of subplants based on the recommended subplant loads. The controller is configured to operate the equipment of the plurality of subplants based on the recommended equipment setpoints.

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Номер записи: 84
29-10-2020 дата публикации

Control system and method for controlling a fluid distribution system

Номер: US20200340689A1
Автор: Anders Overgaard, Brian Kongsgaard Nielsen, Carsten Skovmose Kallesøe
Принадлежит: Grundfos Holdings AS

A control system controls a fluid distribution system that includes consumer branches arranged in parallel. Each consumer branch includes a consumer element (31) consuming fluid and/or thermal energy, a regulating device (9) receiving a control value regulating a flow of fluid and/or thermal energy through the consumer branch, and a sensor (11) providing a measured value of the consumer branch. The control system includes a saturation calculation module (21) providing a saturation value, for each operational consumer branch, indicative of the saturation degree of the associated consumer branch, and a saturation compensation module (23) receiving the saturation values and altering a reference value. The altered reference value is based on an initial reference value and the saturation values from all consumer branches. The consumer branch regulating device, of each operational consumer branch, is controllable based on the altered reference value and the measured value of the associated consumer branch.

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Номер записи: 85
21-11-2019 дата публикации

SYSTEMS AND METHODS FOR FLOW ESTIMATION USING DIFFERENTIAL PRESSURE SENSOR ACROSS VALVE

Номер: US20190353385A1
Автор: Aucoin Camille M., Drees Kirk H., Fentzlaff Brennan H., Freimuth Duane S., Noboa Homero L., Salerno Justin M., Sieth Kenneth J.
Принадлежит:

A system for controlling a flow rate of a fluid through a valve is provided. The system includes a valve and an actuator. An actuator drive device is driven by an actuator motor and is coupled to the valve for driving the valve between multiple positions. The system further includes a differential pressure sensor configured to measure a differential pressure across the valve and a controller that is communicably coupled with the differential pressure sensor and the motor. The controller is configured to receive a flow rate setpoint and the differential pressure measurement, determine an estimated flow rate based on the differential pressure measurement, determine an actuator position setpoint using the flow rate setpoint and the estimated flow rate, and operate the motor to drive the drive device to the actuator position setpoint. 1. A system for controlling a flow rate of a fluid through a valve , the system comprising:a valve configured to regulate a flow of fluid through a conduit;an actuator comprising a motor and a drive device, the drive device driven by the motor and coupled to the valve for driving the valve between multiple positions;a first differential pressure sensor configured to measure a first differential pressure across the valve; and receive a flow rate setpoint;', 'receive the first differential pressure measurement from the first differential pressure sensor;', 'determine an estimated flow rate based at least in part on the first differential pressure measurement;', 'determine an actuator position setpoint using the flow rate setpoint and the estimated flow rate; and', 'operate the motor to drive the drive device to the actuator position setpoint., 'a controller that is communicably coupled with the first differential pressure sensor and the motor, the controller configured to2. The system of claim 1 , wherein the estimated flow rate is further based in part on an actuator feedback position and a valve flow coefficient.3. The system of claim 1 , ...

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Номер записи: 86
21-11-2019 дата публикации

INTAKE DUCT FOR INTERNAL COMBUSTION ENGINE

Номер: US20190353393A1
Автор: Kimura Ryusuke, OHNO Tomoyo
Принадлежит: TOYOTA BOSHOKU KABUSHIKI KAISHA

An intake duct for an internal combustion engine includes a tubular side wall made of a fibrous molded body. The side wall includes split bodies that are separate from one another in a circumferential direction of the side wall. Flanges respectively protrude outward from opposite ends in the circumferential direction of each of the split bodies. Each of the flanges includes a low-compression portion and a high-compression portion that is located inward from the low-compression portion. Each of the flanges of each of the split bodies is paired with and in contact with one of the flanges of a corresponding one of the split bodies. A joining portion made of a plastic material is arranged on parts of each pair of the flanges in contact with each other, the parts being located outward from the high-compression portions, the joining portion surrounding and joining the parts to each other. 1. An intake duct for an internal combustion engine , the intake duct comprising a tubular side wall made of a fibrous molded body that has undergone compression molding , whereinthe side wall includes a plurality of split bodies that are separate from one another in a circumferential direction of the side wall,flanges respectively protrude outward from opposite ends in the circumferential direction of each of the split bodies,each of the flanges includes a low-compression portion and a high-compression portion, the high-compression portion being located inward from the low-compression portion and formed at a higher compressibility than the low-compression portion,each of the flanges of each of the split bodies is paired with and in contact with one of the flanges of a corresponding one of the split bodies, anda joining portion made of a plastic material is arranged on parts of each pair of the flanges in contact with each other, the parts being located outward from the high-compression portions, the joining portion surrounding and joining the parts to each other.2. The intake duct ...

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Номер записи: 87
20-12-2018 дата публикации

Exhaust Flow Control System and Method

Номер: US20180363923A1
Автор: LIVCHAK Andrey V., RACZEWSKI Chester, SCHROCK Derek W.
Принадлежит:

A system and method for controlling the exhaust flow rate in an exhaust ventilation system including an exhaust hood positioned above a cooking appliance. The method can include measuring a temperature of the exhaust air in the vicinity of the cooking appliance, and measuring a radiant temperature of a surface of the cooking appliance, and determining an appliance status based on the measured exhaust air temperature and radiant temperature, and controlling the exhaust flow rate in response to the determined appliance status. 1a control module coupled to sensors and control outputs, the control module coupled to an alarm interface, a fire suppression interface, and an appliance communication interface;{'b': 1500', '1502', '1504', '1506', '1502', '1508', '1512, 'exhaust flow control system in accordance with the present disclosure. In particular, a system includes a control module coupled to sensors and control outputs . The control module is also coupled to an alarm interface , a fire suppression interface , and an appliance communication interface;'}{'b': 1508', '1510, 'the alarm interface being coupled to an alarm system ;'}{'b': 1512', '1514, 'the fire suppression interface being coupled to a fire suppression system ;'}{'b': 1516', '1518', '1520, 'the appliance communication interface being coupled to one or more appliances -;'}{'b': 1502', '1510', '1514', '1518', '1520, 'the control module being capable of communicating and exchanging information with the alarm system , fire suppression system , and appliances - to determine appliance states;'}the control determining from appliance states an optimal exhaust flow rate that provides capture and containment of exhaust fumes;{'b': 1502', '1510', '1514', '1518', '1520, 'the control module may using its sensors provided for control of exhaust may detect a fire or other dangerous condition and communicate detection signals to the alarm system , the fire suppression system while information from the appliances - can be ...

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Номер записи: 88
26-11-2020 дата публикации

AIR DUCT AIRFLOW SENSOR

Номер: US20200370936A1
Автор: Scholten Jean H.
Принадлежит: Johnson Controls, Inc.

An airflow sensor assembly for an air duct is provided. The airflow sensor assembly includes an air duct having an interior wall and an exterior wall, a high pressure detection device, and a low pressure detection device. The low pressure detection device includes a hollow ring disposed within the interior wall of the air duct. The hollow ring includes an inner periphery portion, an outer periphery portion, and a first set of apertures defined therein. The first set of apertures is spaced around the inner periphery portion of the hollow ring. The airflow sensor assembly further includes a pressure sensor fluidly coupled to the high pressure detection device and the low pressure detection device. 1. An airflow sensor assembly for an air duct , the air duct having an interior; comprising:a high pressure detection component; a surface to be disposed within the interior of the air duct and being configured to provide an air restriction in the interior of the air duct, the surface having a plurality of first apertures spaced within the interior; and', 'a pressure sensor configured to be fluidly coupled to the high pressure detection component and the low pressure detection component., 'a low pressure detection component, comprising2. The airflow sensor assembly for an air duct of claim 1 , wherein the surface is a recessed portion of a wall of the air duct.3. The airflow sensor assembly of claim 2 , wherein the high pressure detection component comprises:a first gasket having a recessed area defined therein and a first connecting opening, the first gasket being fitted over the wall and proximate second apertures in the wall of the air duct; anda first tube fluidly coupled to the first connecting opening.4. The airflow sensor assembly of claim 2 , wherein the low pressure detection component comprises:a first gasket having a first connecting opening, the first gasket being fitted over the wall and forming a chamber having the first apertures; anda first tube fluidly ...

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Номер записи: 89
19-12-2019 дата публикации

Air handling system and method

Номер: US20190383500A1
Автор: Duk Kyo Jung
Принадлежит: NHN Corp

An air handling system includes an indirect heat exchange apparatus performing heat exchange between external and internal air heat exchange passages; an external air circulation facility connected to the external air heat exchange passage and circulating an external air in an external space other than a target space through the external air heat exchange passage; an internal air circulation facility connected between the target space and the internal air heat exchange passage; the internal air circulation facility circulating an internal air in the target space through the internal air heat exchange passage; external and internal air temperature sensors disposed in the external and internal air circulation facilities to measure temperatures of the external and internal air; and a control apparatus controlling circulation of the external air within the external air circulation facility based on the temperatures of the external and internal air.

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Номер записи: 90
17-12-2020 дата публикации

Efficient multi-zone multi-velocity hvac control method and apparatus

Номер: US20200393144A1
Автор: Luigi Pulice
Принадлежит: Individual

The present invention provides heating and cooling conditioning control in a multiple zone HVAC system to achieve enhanced user comfort and energy efficiency. In particular, the present invention provides a multiple zone HVAC control apparatus that senses and responds to changes in duct air pressure in order to prevent undesirable zone conditioning, energy loss, and register noise. The present invention offers particular benefit in high and medium velocity HVAC environments which typically suffer from pronounced deficiencies when zone demands diverge. Due to its ability to respond to changes in duct pressure, the present invention permits the conditioning of an increased number of zones without degradation in performance or user comfort. Additionally, the present invention provides a means to control elements within a multiple zone HVAC system including but not limited to heating and cooling sources, air circulator fans, zone dampers, and circulating pumps to achieve desired zone conditioning.

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Номер записи: 91
17-12-2020 дата публикации

Water chiller

Номер: US20200393153A1
Автор: Michel Grabon
Принадлежит: Carrier Corp

A water chiller includes at least one refrigeration apparatus, a water circuit in which circulates a water flow to be cooled down, and at least one fan generating an air flow (Fl) that is aspired from the outside. The refrigeration apparatus comprises a refrigerant circuit functioning in closed loop and comprising a compressor, at least one condenser, an expansion valve and an evaporator. The condenser is configured to release heat from the refrigerant to the air flow (Fl) under action of said at least one fan, the evaporator is configured to draw heat from the water flow to cool down said water flow. The water chiller further comprises at least one free cooling heat exchanger, configured to be exposed to the air flow (Fl), and connectable to the water circuit.

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Номер записи: 92
31-12-2020 дата публикации

MULTI-COMPONENT WHOLE HOUSE FAN SYSTEM

Номер: US20200408428A1
Автор: Jacobi Richard, Smith Neil B.
Принадлежит:

Apparatus and method for ventilating a building structure, such as a residence. In some embodiments, a ventilation system includes a damper assembly which extends through an interior substrate (e.g., an interior wall) of the structure and an exhaust assembly which extends through an exterior substrate (e.g., an exterior wall of the structure and which is in communication with the damper assembly via a control circuit. The interior wall separates a conditioned space and an unconditioned space. The exhaust assembly is initially activated to vent exhaust air from the unconditioned space while a door of the damper assembly remains closed. The door is subsequently opened responsive to a measured environmental parameter, such as a differential pressure between the conditioned and unconditioned spaces, to generate a combined airflow that passes from the conditioned space to the unconditioned space and then to the exterior of the structure. 1. A ventilation system , comprising:a damper assembly configured to extend through a first substrate separating a conditioned space and an unconditioned space in a building structure, the damper assembly comprising an interior door moveable between a normally closed position and an open position;an exhaust assembly configured to extend through a second substrate separating the unconditioned space and an exterior of the building structure, the exhaust assembly comprising an electric motor configured to rotate an impeller; anda control circuit configured to activate the exhaust assembly to generate an initial flow of exhaust air from the unconditioned space to the exterior of the building structure while the interior door of the damper assembly is in the normally closed position, and to subsequently transition the interior door of the damper assembly to the open position responsive to a measured environmental parameter associated with the unconditioned space to establish a combined flow of exhaust air from the conditioned space, through ...

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Номер записи: 93
22-12-2022 дата публикации

SYSTEM AND METHOD FOR ACCESS CONTROL USING DIFFERENTIAL AIR PRESSURE

Номер: US20220404046A1
Автор: Naughton Thomas P.
Принадлежит:

An access control system receives a trigger command for controlling a ventilation system; determines that the trigger command includes a lock trigger to hold an entrance door in a closed position; and induces a locking differential air pressure between opposite sides of the entrance door in response to the lock trigger, where the locking differential air pressure is sufficient to bias the entrance door to contact or to increase contact with a door frame in the closed position. The access control system may also determine that the trigger command includes an open assist trigger to ease an opening of the entrance door; and may induce an opening differential air pressure between the opposite sides of the entrance door in response to the open assist trigger, where the opening differential air pressure is sufficient to bias the entrance door to reduce contact with the door frame in the closed position. 1. A method comprising:receiving a trigger command for controlling a ventilation system;determining that the trigger command relates to opening an entrance door, wherein the entrance door is swingable about an axis;determining a swinging direction of the entrance door for opening the entrance door;determining, based on the swinging direction, a polarity for an opening differential air pressure between opposite sides of the entrance door for opening or for easing an opening of the entrance door; andinducing the opening differential air pressure between the opposite sides of the entrance door in response to the trigger command.2. The method of claim 1 ,wherein determining that the trigger command relates to opening the entrance door comprises determining that the trigger command comprises an open assist trigger to ease the opening of the entrance door; andwherein the opening differential air pressure is sufficient to bias the entrance door to reduce contact with a door frame in a closed position.3. The method of claim 1 , wherein the opening differential air pressure is ...

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Номер записи: 94
22-12-2022 дата публикации

HOUSEHOLD VENTILATION APPARATUS CAPABLE OF ADJUSTING AIR VELOCITY IN MULTIPLE STAGES

Номер: US20220404060A1
Автор: Kim Jung Hwan
Принадлежит:

Proposed is a household ventilation apparatus capable of adjusting air velocity in multiple stages and, particularly, a household ventilation apparatus capable of adjusting air velocity in multiple stages, which is installed in a bathroom and the like of a building such as an apartment so as to adjust the ventilation speed and to change the ventilation speed such that noise is reduced or rapid ventilation is performed depending on a user's preference and the like. The household ventilation apparatus includes: a housing; a motor mounted in the housing; a fan member mounted on the motor so as to rotate; an air volume adjusting unit for setting the magnitude of the air volume of the fan member by means of external input; and a control unit for controlling the rotational speed of the motor in accordance with a set value of the air volume of the air volume adjusting unit. 1. A household ventilation apparatus capable of adjusting air velocity in multiple stages , comprising:a housing;a motor mounted in the housing;a fan member mounted on the motor so as to rotate;an air volume adjusting unit for setting the magnitude of the air volume of the fan member by means of external input; anda control unit for controlling the rotational speed of the motor in accordance with a set value of the air volume of the air volume adjusting unit,wherein, when the same air volume is set by the air volume adjusting unit, the rotational speed of the motor at a place having a high vent pressure is set to be higher than the rotational speed of the motor at a place having a low vent pressure.2. The household ventilation apparatus capable of adjusting air velocity in multiple stages according to claim 1 ,wherein the control unit has control modes including:a normal mode for adjusting the rotational speed of the motor in proportion to the set value of the air volume set by the air volume adjusting unit; anda low noise mode for adjusting the rotational speed of the motor to be smaller than a ...

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Номер записи: 95
04-02-1984 дата публикации

空調機器の制御装置

Номер: JPS5921934A
Автор: Masahiro Kagami, Yozo Ito, 各務　正洋, 陽三 伊藤
Принадлежит: Toyota Motor Corp

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

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Номер записи: 96
06-08-2020 дата публикации

Air cleaning device and clean air supply system

Номер: KR102142196B1
Автор: 김영섭, 신봉운, 안명호, 원성용, 이동환, 장용성
Принадлежит: 자이에스앤디 주식회사

본 발명에 따른 공기 청정기는, 건축물의 실내 바닥으로부터 이격되도록 상기 건축물에 고정 설치되는 하우징과, 하우징의 내측에 마련되는 챔버와, 챔버와 연결되도록 하우징의 내측에 구비되는 흡입 통로와, 공기의 출입을 위해 흡입 통로와 연결되도록 하우징의 외면에 마련되는 공기 출입구와, 챔버의 공기를 하우징의 외부로 토출시키기 위해 챔버와 연결되도록 하우징의 외면에 형성되는 공기 토출구와, 흡입 통로의 공기를 챔버로 흡입시킨 후 공기 토출구를 통해 강제 토출시킬 수 있도록 흡입 통로와 공기 토출구 사이의 공기 유동 경로 중에 배치되어 공기를 강제 송풍시키는 송풍기와, 송풍기에 의해 흡입 통로에서 챔버를 거쳐 공기 토출구로 배출되는 공기를 여과할 수 있도록 흡입 통로와 공기 토출구 사이의 공기 유동 경로 중에 배치되는 필터유닛과, 외기를 공급하기 위한 외기 공급관과 연결되도록 하우징의 일측에 마련되는 외기 유입구와, 챔버와 분리되도록 하우징의 내측에 구비되어 외기 유입구로 유입되는 외기를 공기 출입구로 가이드하는 외기 통로를 포함한다. The air purifier according to the present invention includes a housing fixedly installed in the building so as to be separated from the indoor floor of the building, a chamber provided inside the housing, a suction passage provided inside the housing to be connected to the chamber, and air in and out The air inlet and the air outlet provided on the outer surface of the housing to be connected to the intake passage, the air outlet formed on the outer surface of the housing to be connected to the chamber to discharge the air from the chamber to the outside of the housing, and the air in the intake passage It is arranged in the air flow path between the intake passage and the air outlet so that it can be forcibly discharged through the air outlet, and a blower for forcibly blowing air, and the air discharged from the intake passage through the chamber through the chamber to the air outlet to be filtered A filter unit disposed in the air flow path between the intake passage and the air outlet so as to be able to be connected to the outside air supply pipe for supplying outside air, the outside air inlet provided on one side of the housing, and provided inside the housing to be separated from the chamber It includes an outside air passage to guide the outside air flowing into the inlet to the air inlet.

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Номер записи: 97
02-10-2020 дата публикации

Multipurpose air-regulating fire refuge device for residential toilet

Номер: CN111735162A
Автор: 乐扬, 任兵, 刘宇乔, 张金傲
Принадлежит: Beijing Shenghua'an Consulting Co ltd

本发明公开了一种住宅卫生间多用途调风、火灾避难设备，包括：控制箱、以及分别与控制箱电性连接的操控面板、三通阀门、烟雾过滤器、双向管道风扇、空气蝶阀和多种空气传感器；三通阀门的出入口A通过管道与室外通风口或卫生间通向其他房间的通风口连通；出入口B通过管道与公用通风口连通；出入口C通过管道依次与烟雾过滤器和双向管道风扇的进风口连通；双向管道风扇的出风口朝向卫生间的地面；空气蝶阀两端分别通过管道与三通阀门的出入口C和双向管道风扇的进风口连通，并在排气时处于打开状态，进气时处于关闭状态。本发明既能够在正常洗浴状态对卫生间进行通风，又能够确保在火灾时室内为正压状态且阻止烟雾进入。

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Номер записи: 98
06-04-2018 дата публикации

공기조화 시스템

Номер: KR20180035290A
Автор: 손상혜, 이현영
Принадлежит: 엘지전자 주식회사

본 발명의 일 실시예에 따른 공기조화 시스템은, 공조 유닛; 칠러 유닛; 바이패스 댐퍼; 냉각수 밸브; 온도센서; 및 제어부를 포함할 수 있다. 제어부는 정시 제어모드시, 온도센서에서 감지된 측정온도와 희망온도에 따라 바이패스 댐퍼와 냉각수 밸브를 제어할 수 있다. 이에 의하면, 열교환기로 유입되는 냉수의 양을 조절하여 실내공기 흡입부로 유입되는 공기의 온도를 조절할 수 있고, 바이패스부로 유입되는 더운 공기의 양을 조절할 수 있다. 공조 유닛은 실내공기 흡입부와, 실내공기 흡입부로 유입된 공기와 열교환하는 열교환기와, 열교환기를 바이패스하여 공기가 유입되는 바이패스부를 포함할 수 있다. 칠러 유닛은 열교환기와 냉수 순환유로로 연결될 수 있다. 바이패스 댐퍼는 바이패스부에 설치될 수 있다. 냉각수 밸브는 냉수 순환유로에 설치될 수 있다. 온도 센서는 온도를 측정할 수 있다.

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Номер записи: 99
15-10-2012 дата публикации

Selective point extraction ventilation method applied to active control

Номер: KR101191592B1
Автор: 이호석
Принадлежит: (주)비엔텍아이엔씨

본 발명은 장대터널 건설에 따른 터널의 굴착단면을 최소화하고 환기구의 설치개소를 줄임으로서 공사비와 유지관리비를 절감하고, 터널내 화재시의 안전성을 동시에 확보함으로서 쾌적하고 안전한 능동제어형 선택집중배기 환기 방법을 제공하기 위한 것으로, 본 발명의 구체적인 수단은, 터널의 입구측에 설치되어 출구측으로 신선공기를 유입시키는 하나 이상의 환기용 제트팬; 터널의 출구측에 설치되어 입구측으로 신선공기의 유입방향에 대해 반대방향인 역방향 기류를 형성시키는 하나 이상의 밸런스제어용 제트팬; 환기용 제트팬과 밸런스제어용 제트팬과의 사이 구간에 설치되고, 일정 간격마다 개폐 가능한 댐퍼를 갖는 배연덕트; 터널 입구측에서 유입되는 교통환기와 터널 출구측에서 유입되는 외부자연풍이 합류되는 위치에 설치되고 배연덕트에 연결되어 집중배기 및 화재시 배연기능을 가지는 집중배기용 환기구; 및 집중배기용 환기구에 설치된 배기팬을 포함하여, 배기팬 및 환기용 제트팬에 연동하여 밸런스제어용 제트팬을 터널의 입구측에서 집중배기용 환기구까지의 제1 구간과 터널의 출구측에서 집중배기용 환기구까지의 제2 구간에 압력차가 서로 동일하게 이루어질 때까지 선택적으로 가동시켜 터널 내의 집중배기용 환기구의 양쪽 구간의 압력밸런스 조정이 이루어지는 것을 특징으로 한다. The present invention reduces the construction cost and maintenance cost by minimizing the excavation section of the tunnel according to the construction of the long tunnel and reducing the installation location of the ventilation port, and simultaneously secures safety during fire in the tunnel. In order to provide a specific means of the present invention, one or more ventilation jet fan is installed at the inlet side of the tunnel for introducing fresh air to the outlet side; At least one balance control jet fan installed at an outlet side of the tunnel to form a reverse airflow in a direction opposite to an inflow direction of fresh air toward the inlet side; A flue duct installed in a section between the ventilation jet fan and the balance control jet fan and having a damper that can be opened and closed at a predetermined interval; A concentrated exhaust vent installed at a position where the traffic ventilation flowing from the tunnel inlet side and the external natural wind flowing from the tunnel outlet side are joined and connected to the flue duct and having a flue gas exhaust function in case of fire and fire; And an exhaust fan installed at the exhaust vent for the concentrated exhaust air, the balance control jet fan being connected to the exhaust fan and the ventilation jet fan for the first section from the inlet side of ...

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Номер записи: 100