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| Number | Title | Issue Date |
| 8196420 | Expansion valve control for enhancing refrigerator efficiency The present invention concerns a cooling or heating system including at least a compressor, a condenser, an expansion apparatus and a vaporizer. The invention is characterized essentially in that in the condenser or in proximity to an outlet of the condenser and bef... | 06/12/2012 |
| 8156749 | Portable sprinkler system A portable sprinkler system for an air conditioner cooling system includes a fluid source coupled to the sprinkler system, a plurality of spray nozzles fluidly connected by conduit, a step-down transformer, a solenoid, and an in-line filter connected in series, a pr... | 04/17/2012 |
| 8074461 | Pre-cooling system for an air conditioning condenser A pre-cooling system for use with a condenser of an air conditioning system is provided. In one embodiment, the pre-cooling system comprises a housing that is coupleable to a top of a condenser of an air conditioner wherein the condenser has a substantially-vertical... | 12/13/2011 |
| 7992397 | Ammonia/COrefrigeration system, CObrine production system for use therein, and ammonia cooling unit incorporating that production system An ammonia/CO2 refrigeration system is provided in which the ammonia cycle and CO2 brine cycle can be combined without problems even when refrigeration load such as refrigerating showcase, etc. is located at any place in accordance with circums... | 08/09/2011 |
| 7886549 | Refrigeration system If the degree of opening of an electronic expansion valve (14) continues to remain below a specified degree of opening or if the degree of superheat of an evaporator (15) continues to remain above a predetermined degree of superheat, it is determined t... | 02/15/2011 |
| 7878012 | Portable sprinkler system A portable sprinkler system for a cooling system is disclosed, the portable sprinkler system includes a fluid source coupled to the sprinkler system, a plurality of spray nozzles fluidly connected by conduit, a solenoid connected in series, a protective cover enclos... | 02/01/2011 |
| 7841195 | Refrigeration apparatus and method for controlling the same A refrigeration apparatus includes a condensing unit, a flow distributor, and an evaporator connected to the condensing unit via the flow distributor. A pressure detector is configured to detect condensation pressure of the refrigerant. A calculation unit is configu... | 11/30/2010 |
| 7836714 | Thermal storage tank/base A fluid compression system includes a compressor that is operable to produce a flow of compressed fluid and a coolant compressor that is operable to produce a flow of coolant. A base includes at least one polymer wall that at least partially defines a reservoir spac... | 11/23/2010 |
| 7743617 | Chiller sound reduction control system and method A noise control method is provided for a cooling system having at least one refrigerant circuit. The refrigerant circuit includes a compressor, a condenser, at least one condenser fan, and an evaporator. Noise control is only performed periodically in response to re... | 06/29/2010 |
| 7677050 | Control device for vehicle cooling fan A control device for a fan motor (7) which cools a condenser (6) of a vehicle air conditioner includes a temperature sensor (12) which detects a temperature of an air that has passed through an evaporator (10) of the vehicle air condition... | 03/16/2010 |
| 7490481 | Vapor compression system startup method A method of controlling a startup operation in a heat pump water heater system prevents inadvertent shutdowns and/or low operating efficiencies via closed loop control of the system. The method includes choosing an expansion valve opening at startup near an expected... | 02/17/2009 |
| 7434416 | Air-conditioning system An air-conditioning system includes a refrigeration cycle and a control unit. The refrigeration cycle includes an electric compressor in which a compression mechanism for drawing a refrigerant therein for compression is integrated with an electric motor for driving ... | 10/14/2008 |
| 7426837 | Refrigerator A refrigerator includes a compressor compressing a refrigerant, a first liquid heat exchanger performing heat exchange between the refrigerant and a first liquid heat medium, an expander expanding the refrigerant, a second liquid heat exchanger performing heat excha... | 09/23/2008 |
| 7367199 | Method for automatically balancing air conditioning outdoor heat exchange A method for automatically balancing air conditioning outdoor heat exchange detects a piping measured value of each piping equipment through a detection unit and compares the piping measured value with a set operation mode selected by users and a set value. Airflow ... | 05/06/2008 |
| 7350368 | Stationary vehicle air conditioning system The invention pertains to a stationary vehicle air conditioning system with a refrigerant circuit, in which at least one compressor circulates the refrigerant to at least two condensers. The at least one compressor may be powered by the vehicle's mechanical power, b... | 04/01/2008 |
| 7347056 | Vehicle air-conditioning system A vehicle air-conditioning system provided with a refrigeration cycle system is provided. The air-conditioning system includes an evaporator outlet air target temperature setting unit which sets the target temperature of air at an outlet of an evaporator at a predet... | 03/25/2008 |
| 7337624 | Refrigeration system and method for beverage dispenser A method of regulating the refrigerant temperature for a beverage machine, including a refrigeration system for producing a frozen beverage, operating at least one compressor at a speed to flow the refrigerant through the refrigeration system of the beverage machine... | 03/04/2008 |
| 7337622 | Humidity-based defog control method for a vehicle climate control system A vehicle climate control system develops a fog index based on relative humidity at or near the inner surface of the windshield, and uses the fog index to variably override the normal control settings. The relative humidity is combined with a pair of humidity thresh... | 03/04/2008 |
| 7290400 | Stationary vehicle air conditioning system and method The invention pertains to a stationary vehicle air conditioning system with a refrigerant circuit, in which a compressor circulates refrigerant through a refrigerant circuit including at least one condenser. The one compressor may be powered by the vehicle's mechani... | 11/06/2007 |
| 7287395 | Distributed cooling system A system includes a plurality of distributed refrigeration units respectively coupled to discrete refrigeration circuits. Each refrigeration unit may include a variable compressor, a fixed compressor, a condensing unit, and a controller. The controller compares an o... | 10/30/2007 |
| 7275378 | Speed and system pressure control for cooling fan A method and system for controlling a cooling fan that cooperates with an air conditioning condenser in a vehicle. The present embodiments include steps and corresponding implementations for determining a speed of the vehicle, determining a discharge pressure of the... | 10/02/2007 |
| 7276138 | Vapor generating and recovery apparatus A vapor generating and recovery apparatus including a housing having an open top, a closed bottom and a plurality of sidewalls therebetween defining a boiling sump with a treating solution therein. The housing is further provided with at least one heating coil and a... | 10/02/2007 |
| 7273672 | Solid polymer electrolyte fuel cell The present invention provides a solid polymer electrolyte fuel cell comprising a fuel cell stack 21 formed by laminating a plurality of fuel cell units each of which includes a fuel electrode 23, an oxidant electrode 24, and a solid polymer ele... | 09/25/2007 |
| 7263852 | Heat exchanger apparatus and method for evaporative cooling refrigeration unit This invention is for a highly efficient heat transfer unit and method for heat transfer for an air conditioning refrigeration unit. The invention has a plurality of condenser coils that stand generally vertically upright (with up to 20° tilt to optimize downward w... | 09/04/2007 |
| 7246500 | Variable speed condenser fan control system A controller comprises a first input that receives a signal indicating an energy consumption value of a compressor, a second input that receives a signal indicating an energy consumption value of a variable speed condenser fan, and an output that provides a control ... | 07/24/2007 |
| 7225629 | Energy-efficient heat pump water heater An energy-efficient heat pump water heating system determines whether to energize a heat pump by interpreting readings from one or temperature sensors based on two thresholds. The heat pump is energized if the detected temperature falls below a first threshold and d... | 06/05/2007 |
| 7210303 | Transcritical heat pump water heating system using auxiliary electric heater Refrigerant is circulated through a vapor compression system including a compressor, a gas cooler, an expansion device, and an evaporator. An auxiliary electric heater is activated to further heat the heated water exiting the gas cooler when the heating capacity of ... | 05/01/2007 |
| 7203416 | Ventilating and heating apparatus with heater shielded by tapered discharge duct The invention provides a ventilating and heating apparatus for installation in a building structure. In some embodiments, the apparatus includes a main housing in which is located a ventilating fan assembly and a heater fan assembly having a heater and a discharge d... | 04/10/2007 |
| 7197886 | Heat reclaim refrigeration system and method A heat reclaim refrigeration system uses a first compressor to elevate the amount of latent heat reclaimable by the system and to reclaim this heat using heat reclaim means, such as heat reclaim coils, for practical applications, such as heating a building. In addit... | 04/03/2007 |
| 7181920 | Cooling plant for a fluid with control of variables Cooling plant for a “cooled” fluid, able to cool and/or dry the fluid by means of cooling substantially to a pre-established temperature, the plant comprising a heat exchanger (17), to cool the fluid, by means of heat exchange with a “cooling” fluid i... | 02/27/2007 |
| 7178357 | Portable air conditioning apparatus A portable cooling or heating system suitable for use on a vehicle such as a car, plane or boat, that does not have its own air conditioning system. The system is intended to be combined with a portable cooler chest and includes an electric fan unit that can be powe... | 02/20/2007 |
| 7178584 | Plasma polymerization enhancement of surface of metal for use in refrigerating and air conditioning According to the present invention, there is provided a plasma polymerization surface modification of a metal for enhancing its applicability for use in refrigerating and air conditioning such as in constructing heat exchanges, by using a DC discharge plasma, compri... | 02/20/2007 |
| 7174731 | Rotational speed control system, rotatingly driving system, air blow system, clean bench, outdoor unit of air conditioner This invention relates to a rotational speed control system including a plurality of motor drivers for driving motors, and the object thereof is to drive a plurality of motors at the same rotational speed without depending on the number of motor drivers and without ... | 02/13/2007 |
| 7174732 | Cooling control device for condenser Cooling control device for a condenser is provided which includes the condenser, a cooling device for cooling the condenser, and a control device for controlling the cooling device. The cooling device includes a first cooling fan for cooling a gaseous-phase portion ... | 02/13/2007 |
| 7165410 | Evaporative cooler drain pump A drain pump assembly is provided for use with an evaporative cooler having a water reservoir and a circulating pump. The drain pump assembly includes a drain pump operative to pump accumulated water from the reservoir when the drain pump is turned on and a controll... | 01/23/2007 |
| 7155922 | Energy efficient heat pump systems for water heating and air conditioning A heat pump system for providing water heating and air conditioning, comprising one or more compressors for circulating a refrigerant in the system, a hot water tank having a heat exchanger for heating and storing the hot water, an outdoor heat exchanger and a fan f... | 01/02/2007 |
| 7127905 | Vapor compression system startup method A method of controlling a startup operation in a heat pump water heater system prevents inadvertent shutdowns and/or low operating efficiencies via closed loop control of the system. The method includes choosing an expansion valve opening at startup near an expected... | 10/31/2006 |
| 7117691 | Device for controlling liquid level position within condenser in rankine cycle apparatus In a liquid-level-position control device for a condenser in a Rankine cycle apparatus, first and second reference liquid level positions are set. When a position of the fluid level is lower than the first reference liquid level position, water is replenished to a c... | 10/10/2006 |
| 7109680 | Inverter device An object is to provide an inverter device capable of realizing exact protection of the winding of a motor. An inverter device for generating a pseudo alternating current by switching a direct current to drive a motor, comprises a controller that executes vector con... | 09/19/2006 |
| 7102529 | System and method for suppressing the spread of fire and various contaminants Systems and methods for suppressing the spread of fire, fire-related toxins, and other biological and chemical hazards are disclosed. In embodiments of the present invention a controller shuts off the flow of electrical current to the fan of a residential heating, v... | 09/05/2006 |
