Patent application number | Description | Published |
20110016915 | HIGH EFFICIENCY DC COMPRESSOR AND HVAC/R SYSTEM USING THE COMPRESSOR - A DC powered compressor and an HVAC/R system having the compressor are disclosed. The compressor comprises an AC powered compressor and a DC/AC inverter configured to receive power from a DC power source and to provide the power to the AC compressor. | 01-27-2011 |
20110018348 | HVAC/R BATTERY BACK-UP POWER SUPPLY SYSTEM HAVING A VARIABLE FREQUENCY DRIVE (VFD) POWER SUPPLY - A power supply for an HVAC/R system is configured to provide back-up power functionality for situations when the main source of power fails. The power supply includes a DC power bus which receives power from the main source of power as well as a back up source. When the main source fails the back up source provides power to the DC power bus. Connected to the DC power bus is a variable frequency drive power supply (VFD). The VFD is configured to provide power to the components of the HVAC/R system based on power received from the DC power bus. | 01-27-2011 |
20110018349 | HVAC/R SYSTEM HAVING POWER BACK-UP SYSTEM WITH A DC-DC CONVERTER - An HVAC/R system is configured with power storage for power back-up to maintain substantially uninterrupted power in the case of a main power failure. The power back-up system has a DC power source configured to be recharged, and provides power to the HVAC/R components. | 01-27-2011 |
20110018350 | POWER BACK-UP SYSTEM WITH A DC-DC CONVERTER - An electromechanical system is configured with power storage for power back-up to maintain substantially uninterrupted power in the case of a main power failure. The power back-up system has a DC power source configured to be recharged, and provides power to the components with a DC-DC converter. | 01-27-2011 |
20110018472 | HVAC/R SYSTEM WITH VARIABLE FREQUENCY DRIVE (VFD) POWER SUPPLY FOR MULTIPLE MOTORS - An HVAC/R system is configured with a variable frequency drive power supply which provides power to each of a compressor, a condenser fan, and a blower. In some embodiments, the compressor has a three-phase motor and the condenser fan has a single-phase motor. | 01-27-2011 |
20110018473 | HVAC/R SYSTEM WITH VARIABLE FREQUENCY DRIVE POWER SUPPLY FOR THREE-PHASE AND SINGLE-PHASE MOTORS - An HVAC/R system is configured with a variable frequency drive power supply which provides power to both a three-phase motor and to a single-phase motor. In some embodiments, the three-phase motor is a compressor motor and the single-phase motor is a condenser fan motor. | 01-27-2011 |
20110018474 | ELECTROMECHANICAL SYSTEM HAVING A VARIABLE FREQUENCY DRIVE POWER SUPPLY FOR 3-PHASE AND 1-PHASE MOTORS - An electromechanical system is configured with a variable frequency drive power supply which provides power to both a three-phase motor and to a single-phase motor. In some embodiments, the variable frequency drive also powers one or more additional motors. | 01-27-2011 |
20120187764 | ENCLOSURE HOUSING ELECTRONIC COMPONENTS HAVING HYBRID HVAC/R SYSTEM WITH POWER BACK-UP - An enclosure or shelter having an interior chamber for housing electronic components and equipment is provided with an HVAC/R system configured with a rechargeable DC power source for power back-up to maintain substantially uninterrupted power in the case of a main power failure. The system includes one or more variable frequency drives (VFD) controlled by a VFD controller and configured to provide three-phase power to one or more three-phase AC motors and single-phase power to one or more single-phase AC motors. The system also includes a power source controller configured to select and power sources based on availability of one or more power sources and other logic. | 07-26-2012 |
20120191252 | PHOTOVOLTAIC POWER SOURCE FOR ELECTROMECHANICAL SYSTEM - An enclosure or shelter having an HVAC/R system is configured with a photovoltaic power source and a rechargeable DC power source for power back-up to maintain substantially uninterrupted power in the case of a main power failure. The system includes one or more variable frequency drives (VFD) controlled by a VFD controller and configured to provide three-phase power to one or more three-phase AC motors and single-phase power to one or more single-phase AC motors. The system also includes a power source controller configured to select power sources based on availability of one or more power sources and other logic. | 07-26-2012 |
20120191253 | HVAC/R SYSTEM WITH MULTIPLE POWER SOURCES AND TIME-BASED SELECTION LOGIC - A heating, ventilation, air conditioning, and refrigeration system is includes one or more variable frequency drives (VFD) controlled by one or more VFD controller, which are configured to provide three-phase power to one or more three-phase AC motors and single-phase power to one or more single-phase AC motors. The system also includes a power source controller configured to select from a plurality of power sources based on availability of one or more power sources and time so as to maximize the economic efficiency of operating the system. | 07-26-2012 |