Economizer control

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 8195335
APP PUB NO 20110172831A1
SERIAL NO

12686225

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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The present disclosure provides a method for controlling an economizer of an HVAC system. The economizer has an outside air stream of incoming outside air, a return air stream of return air, and a mixed air stream of mixed incoming outside air and return air that is provided to the cooling unit of the HVAC system. The economizer also includes one or more controllable dampers for controlling a mixing ratio of incoming outside air to return air in the mixed air stream. The control method includes positioning the one or more controllable dampers in first and second configurations such that the mixed air stream has first and second mixing ratios of incoming outside air to return air in the mixed air stream. The method also includes recording first and second measures related to the temperature of the mixed air stream when the dampers are in each of the first and second configurations. First and second measures related to other parameters of the mixed air stream may be recorded as well. Based on the recorded first and second measures related to the temperature of the mixed air stream and possibly other recorded measures related to mixed air stream parameters, the method determines whether and/or how much of the incoming outside air to admit into the economizer via the one or more controllable dampers during subsequent operation of the HVAC system.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
HONEYWELL INTERNATIONAL INC.MORRISTOWN, NJ8310

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Grabinger, Cory Maple Grove, US 25 126
Kreft, Todd Richfield, US 10 111
McMillan, Scott Golden Valley, US 15 97
Wacker, Paul Plymouth, US 20 168

Cited Art Landscape

Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (1)
* 2008/0176,503 Fully articulated and comprehensive air and fluid distribution, metering, and control method and apparatus for primary movers, heat exchangers, and terminal flow devices 12 2008
 
AIRCUITY, INC. (1)
* 2006/0234,621 Multipoint air sampling system having common sensors to provide blended air quality parameter information for monitoring and building control 47 2006
 
Mitsubishi Jukogyo Kabushiki Kaisha (1)
4580620 Controlling the airflow rate in an air conditioner 16 1985
 
TRANE INTERNATIONAL INC. (2)
5276630 Self configuring controller 172 1990
2006/0117,769 Ventilation controller 24 2004
 
WATLOW ELECTRIC MANUFACTURING COMPANY (1)
* 2007/0289,322 Air handler unit fan installation and control method 19 2007
 
SAMSUNG ELECTRONICS CO., LTD. (1)
* 2003/0193,657 Range finder device and camera 43 2003
 
HONEYWELL INTERNATIONAL INC. (6)
6249100 Drive circuit and method for an electric actuator with spring return 33 1997
* 6161764 Enhanced economizer controller 66 1999
6826920 Humidity controller 34 2002
2006/0107,670 Demand control ventilation sensor failure 10 2004
* 2006/0130,502 Virtual controller for mixed air low temperature protection of HVAC systems 18 2004
* 7434413 Indoor air quality and economizer control methods and controllers 56 2005
 
TRANE COMPANY THE, LA CROSSE, (1)
4379484 Control for a variable air volume temperature conditioning system-outdoor air economizer 38 1981
 
OGD V-HVAC, INC. (1)
* 2005/0278,071 Adaptable HVAC; AC motor speed, air temperature and air quality control system 73 2004
 
HONEYWELL INC. (4)
4347712 Microprocessor discharge temperature air controller for multi-stage heating and/or cooling apparatus and outdoor air usage controller 56 1980
4423364 Electric motor damper drive with backup power pack 23 1982
4570448 Economizer control apparatus 27 1983
5762420 Damper actuator controller having an enthalpy sensor input 10 1996
 
HITACHI, LTD. (1)
5719408 Thin film transistor substrate, manufacturing method thereof, liquid crystal display panel and liquid crystal display equipment 28 1997
 
HONDA GIKEN KOGYO KABUSHIKI KAISHA (1)
* 2001/0052,756 Electric power steering apparatus 5 2001
 
Lux Products Corporation (1)
6988671 Programmable thermostat incorporating air quality protection 82 2003
 
HVAC MODULATION TECHNOLOGIES LLC (1)
5801940 Fault-tolerant HVAC system 80 1996
 
BATTELLE MEMORIAL INSTITUTE (1)
6778945 Rooftop package unit diagnostician 25 2001
 
PHOENIX CONTROLS CORPORATION (1)
6609967 Methods and apparatus for recirculating air in a controlled ventilated environment 20 2000
 
York International Corporation (1)
* 7099748 HVAC start-up control system and method 15 2004
 
DAY AUTOMATION SYSTEMS, INC. (1)
4605160 Air blending apparatus for heating, ventilating and air conditioning (HVAC) 32 1984
 
JOHNSON CONTROLS TECHNOLOGY COMPANY (7)
5292280 Method and apparatus for controlling ventilation rates and indoor air quality in an HVAC system 65 1992
5791408 Air handling unit including control system that prevents outside air from entering the unit through an exhaust air damper 78 1996
* 6006142 Environmental control system and method 153 1997
* 6223544 Integrated control and fault detection of HVAC equipment 128 1999
* 6415617 Model based economizer control of an air handling unit 94 2001
* 2008/0179,408 Sensor-free optimal control of air-side economizer 43 2007
* 2008/0179,409 Adaptive real-time optimization control 32 2007
 
BOARD OF REGENTS OF THE UNIVERSITY OF NEBRASKA (1)
* 2007/0037,507 Multi-zone air handling systems and methods with variable speed fan 26 2006
* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
GENERAL ELECTRIC COMPANY (1)
* 2013/0186,117 SYSTEM AND METHOD TO PROCESS INLET AIR 1 2012
 
BASELAYER TECHNOLOGY, LLC (3)
* 9237681 Modular data center 2 2013
* 2014/0190,198 MODULAR DATA CENTER 4 2013
9661788 Modular data center 0 2013
 
SIEMENS INDUSTRY, INC. (2)
* 8930030 Method and system for improving energy efficiency in an HVAC system 2 2011
* 2013/0085,613 METHOD AND SYSTEM FOR IMPROVING ENERGY EFFICIENCY IN AN HVAC SYSTEM 1 2011
 
IAIRE L.L.C. (1)
9353966 System for increasing operating efficiency of an HVAC system including air ionization 0 2013
 
AMAZON TECHNOLOGIES, INC. (1)
* 8721409 Airflow control system with external air control 6 2007
 
HONEYWELL INTERNATIONAL INC. (4)
8688278 Economizer control 4 2012
9416987 HVAC controller having economy and comfort operating modes 1 2013
9703299 Economizer controller plug and play system recognition with automatic user interface population 0 2014
9765986 Demand control ventilation system with commissioning and checkout sequence control 0 2015
 
BELIMO HOLDING AG (1)
9435557 Control unit for an HVAC system comprising an economizer and method for operating such control unit 0 2013
* Cited By Examiner

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
7.5 Year Payment $3600.00 $1800.00 $900.00 Dec 5, 2019
11.5 Year Payment $7400.00 $3700.00 $1850.00 Dec 5, 2023
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Surcharge - 7.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 11.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge after expiration - Late payment is unavoidable $700.00 $350.00 $175.00
Surcharge after expiration - Late payment is unintentional $1,640.00 $820.00 $410.00