Patent application number | Description | Published |
20090230278 | SENSOR MOUNT ASSEMBLY - A shock resistant sensor assembly comprises a base plate, a clamp lid, a hinge assembly secured to the base plate and the clamp lid and forming a hinge connection, and a releasable clamp assembly secured to either the base plate or the clamp lid opposite the hinge assembly and having a latch member for releasably engaging and clamping the other end of the base plate or the clamp lid. A sensor housing with a sensor is clamped between the base plate and the clamp lid. | 09-17-2009 |
20100307729 | FIRETUBE HEAT EXCHANGER - A firetube having an elongated cylindrical shell is characterized by a plurality of circular rows of elongated U-shaped fins, each having a bottom surface, preferably curved along a radius or flat, secured to the inner surface of the cylindrical shell and two flat, planar, preferably parallel sides extending upwardly from the bottom surface, with the fins in each row aligned substantially parallel along the axis of the cylindrical shell. | 12-09-2010 |
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 |
20120210736 | CASCADE FLOATING INTERMEDIATE TEMPERATURE HEAT PUMP SYSTEM - A cascade heat pump system is configured with variable-speed compressors which allow operation at a high system coefficient of performance for a given thermal load. An electronic control module may be utilized to dynamically vary the speed of the compressors to achieve maximum energy efficiency. Variable-speed fans or blowers may also be used. | 08-23-2012 |
20140245768 | CO-FIRED ABSORPTION SYSTEM GENERATOR - A co-fired generator for use in a continuous-cycle absorption heating and cooling system may provide heat to the interior of an annulus chamber from a first heat exchanger, such as a firetube heat exchanger, supplemented by heat to the exterior of the annulus chamber from a second heat exchanger containing fluid heated by an external source. Some embodiments may circulate fluid heated in a solar-heated collector through the second heat exchanger. Other embodiments may route exhaust gas from a combustion engine through the second heat exchanger. The second heat exchanger may be provided with a plurality of fins to increase the surface area available for thermal transfer between the heated fluid and the annulus chamber. | 09-04-2014 |