| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 062277000 | Means utilizing heat developed by refrigeration producer | 23 |
| 20090044557 | VAPOR COMPRESSION SYSTEM - A vapor compression system having a defrost cycle is disclosed. A compressor, a condenser, an evaporator, and an expansion valve connected in a closed refrigerant loop with at least one flow control device. The at least one flow control device may control the flow of refrigerant through the closed refrigerant loop. At least one sensor monitors a predetermined parameter of the closed refrigerant loop and at least one controller receives a signal from the at least one sensor. The at least one controller controls the position of the at least one flow control device. The at least one controller initiates a defrost cycle in the closed refrigerant loop by substantially actuating at least one of the at least one flow control device to provide refrigerant flow from the compressor to the evaporator for substantially preventing formation of frost on the evaporator. | 02-19-2009 |
| 20090272138 | Condensate Evaporation Device - A condensate evaporation device for a refrigerator is provided. The condensate evaporation device includes a refrigerant pipe and a protecting tube. The refrigerant pipe through which the refrigerant flows is installed near bottom of a pan containing condensate that flows out of the storage space so as to be immersed in the condensate. The protecting tube is disposed around at least a part of the refrigerant pipe. The protecting tube surrounds at least a part of the refrigerant pipe that is immersed in the condensate in the pan, such that the condensate does not contact and erode the refrigerant pipe directly. The protecting tube may surround the refrigerant pipe tightly to provide heat exchange between the refrigerant and the condensate via the refrigerant pipe and the protecting tube. | 11-05-2009 |
| 20100077785 | Refrigerator with Hot Air Blow Type Condensate Removing Device - A refrigerator includes an enclosure that is adapted to store and cool down food, a refrigeration circuit that cools down the inside of the enclosure and a condensate evaporation device. The refrigeration circuit includes an evaporator that evaporates coolant to cool down the inside of the enclosure and a condenser that condenses coolant. The condensate evaporation device includes a drain case into which condensate generated is collected, and a heating device that provides heat to the drain case to evaporate the condensate. The heating device includes a hot air guide device that guides air heated with heat generated by the condenser into the drain case. The hot air guide device includes an air duct that is provided between the drain case and the condenser. | 04-01-2010 |
| 20110179816 | COLD APPLIANCE - A cold appliance, such as a household refrigerator or freezer, comprising a cooling module ( | 07-28-2011 |
| 20110289956 | Frost Free Sub Zero Air Conditioner - The present invention provides an energy efficient air conditioner that can provide a continuous supply of air at dew point that is several degrees Celsius below zero, without requiring a defrost cycle. The air conditioner in accordance to present invention comprises a plurality of cooling coils with interconnecting refrigerant piping, refrigeration circuit consisting of compressor and condenser coils, control circuit and one or more electric motor driven centrifugal fan. The present invention uses two cooling systems. The first cooling system having single coil cools the air to a temperature just above zero deg. C., say four deg. C. so that the second stage gets a steady supply of cold air. The second stage has two coils, each being half the size of the first stage coil, thus taking half the air from it so that all the air from stage 1 passes through stage 2. In operation, only one coil of the second stage is active arid chills the air going through it to say minus 14 Deg. C. The other coil, being inactive, passes on the +4 Deg. C. air coming from the first stage. In order to prevent the active coil from icing up, a control circuit diverts the refrigerant to the second coil within a period short enough to prevent any significant ice build up in that coil. This goes on so that the total air flow is a steady 50% mixture of air at 4 Deg. C. and minus 14 deg. C. This works out to minus 5 Deg. C. at the output. | 12-01-2011 |
| 20120085117 | TRAILER REFRIGERATING APPARATUS - A refrigerant circuit is configured, which includes an electric compressor, a condenser, an expansion mechanism, an evaporator, a hot gas introduction path connecting the electric compressor and the evaporator together, and a switching valve for controlling a flow of refrigerant in the hot gas introduction path. In addition, a fan is provided. In a defrosting cycle for introducing refrigerant into the evaporator through the hot gas introduction path to defrost the evaporator, if the pressure of the condenser is equal to or lower than a predetermined threshold, the fan forms an air flow from a radiator to the condenser. | 04-12-2012 |
| 20120279244 | TABLE TOP REFRIGERATED BEVERAGE DISPENSER - A self-contained beverage chilling apparatus including a refrigerant cooling system comprising a refrigerant reservoir in a fluid communication with a cold plate, a refrigerator accumulator, a compressor and a refrigerant condenser mounted within a housing unit. The housing unit further included beverage inlet means in fluid communication with the cooling system cold plate, and beverage dispenser means in fluid communication with the cold plate wherein the beverage to be dispensed is chilled to a desired temperature as it passes through the cold plate to the beverage dispensing means. | 11-08-2012 |
| 20140130532 | REFRIGERATION SYSTEM UTILIZING NATURAL CIRCULATION OF HEAT TO CARRY OUT DEFROSTING THEREOF - A refrigeration system utilizing natural circulation of heat to carry out defrosting thereof provides a refrigeration cycle path and a defrost cycle path, and is characterized by a heat energy storage device located at an output of a compressor that is common for the two cycle paths. High-temperature high-pressure overheated refrigerant output by the compressor passes through the heat energy storage device and releases part of heat energy thereto for storage. When the refrigeration system is switched from the refrigeration cycle path to the defrost cycle path, the compressor is turned off and three-way valves upstream an evaporator are opened, a pressure difference between the heat energy storage device and the evaporator drives the hot refrigerant to directly flow through the three-way valves into a coil of the evaporator to melt frost on the coil from inner to outer side while the refrigerant keeps circulating along the defrost cycle path. | 05-15-2014 |
| 20140318168 | AIR CONDITIONING DEVICE - An air conditioning device capable of preventing drainage water dropped down from a heat exchange portion on the upper side for which a defrosting operation is performed from being frozen again in a heat exchange portion used for a heating operation, so that a decrease in a heating ability can be suppressed is provided. In an air conditioning device including a heat source side heat exchanger formed by providing a plurality of heat exchange portions, to which a refrigerant is supplied through different paths from each other, side by side in the up and down direction, and partial defrosting means for, while the heating operation is performed by using a part of the heat exchange portions, performing the defrosting operation for the other heat exchange portions, a drainage mechanism for draining drainage water generated in each of the heat exchange portions is provided for each of the heat exchange portions. | 10-30-2014 |
| 20140345312 | HEAT EXCHANGER AND HEAT PUMP CYCLE PROVIDED WITH THE SAME - A heat exchanger includes a refrigerant tube through which a refrigerant for absorbing heat from air flows, and a defrosting medium tube through which a coolant for supplying heat for defrosting flows. Two fins disposed on both sides of the refrigerant tube include a protrusion protruding toward an upstream side of the flow of air with respect to the refrigerant tube. The protrusion is provided with a clearance that allows melt water generated in the defrosting to flow on the upstream side of the refrigerant tube. The refrigerant tubes and the defrosting medium tubes can be alternately arranged in the upstream line. The protrusion protrudes such that the air can be introduced into an air passage from the side portion of the protrusion even when an end facing the upstream side of the flow of the air is closed with the core of frost. | 11-27-2014 |
| 20140352343 | CO2 REFRIGERATION SYSTEM WITH HOT GAS DEFROST - A C02 refrigeration system has an LT system with LT compressors and LT evaporators, and an MT system with MT compressors and MT evaporators, operating in a refrigeration mode and a defrost mode using C02 hot gas discharge from the MT and/or the LT compressors to defrost the LT evaporators. A C02 refrigerant circuit directs C02 refrigerant through the system and has an LT compressor discharge line with a hot gas discharge valve, a C02 hot gas defrost supply header directing C02 hot gas discharge from the LT and/or the MT compressors to the LT evaporators, a flash tank supplying C02 refrigerant to the MT and LT evaporators during the refrigeration mode, and receiving the C02 hot gas discharge from the LT evaporators during the defrost mode, and a control system directing the C02 hot gas discharge through the LT evaporators and to the flash tank during the defrost mode. | 12-04-2014 |
| 20160146528 | REFRIGERATOR - A refrigerator including a body having an inner casing and an outer casing, a storage compartment provided in the body to allow a front surface thereof to be open, a door including a first door and a second door pivotably coupled with both sides of the body and configured to open and close the open front surface of the storage compartment, a pivoting bar pivotably coupled with the first door, a guide device coupled with the body to induce the pivoting bar to pivot, a heat transfer pipe installed between the inner casing and the outer casing and configured to extend along a front edge of the storage compartment to allow a refrigerant to be movable therein, and a heat transfer member in contact with the heat transfer pipe and the guide device, and which is formed of a material having a higher thermal conductivity than the inner casing. | 05-26-2016 |
| 20160161162 | REFRIGERATING APPARATUS - A refrigerating apparatus according to the present invention includes: a refrigerating circuit in which a refrigerant that is discharged from a compressor is conveyed under pressure sequentially to a first flow rate controlling apparatus, a heat storing tank, a condenser, a first decompressing apparatus, and an evaporator, and is recycled to the compressor; a defrosting circuit in which the refrigerant that is discharged from the compressor is conveyed under pressure sequentially to the first flow rate controlling apparatus, the heat storing tank, the first decompressing apparatus, and the evaporator, and is recycled to the compressor; and a flow channel switching apparatus that connects an outlet side of the heat storing tank to an inlet side of the condenser or to an inlet side of the first decompressing apparatus to form the refrigerating circuit or the defrosting circuit. | 06-09-2016 |
| 20160187040 | Surged Vapor Compression Heat Transfer Systems with Reduced Defrost Phase Separator - Surged vapor compression heat transfer systems, devices, and methods are disclosed having refrigerant phase separators that generate at least one surge of vapor phase refrigerant into the inlet of an evaporator after the initial cool-down of an on cycle of the compressor. This surge of vapor phase refrigerant, having a higher temperature than the liquid phase refrigerant, increases the temperature of the evaporator inlet, thus reducing frost build up in relation to conventional refrigeration systems lacking a surged input of vapor phase refrigerant to the evaporator. | 06-30-2016 |
| 062278000 | Bypassing or reversing internal fluid flow | 6 |
| 20110154844 | WATER CIRCULATION SYSTEM ASSOCIATED WITH REFRIGERANT CYCLE - The present invention proposes a water circulation system associated with a refrigerant cycle that can selectively heat-exchange water for cooling and heating and hot water supplying with at least one of a first refrigerant and a second refrigerant. Therefore, the present invention can improve the operation efficiency of the water circulation system associated with the refrigerant cycle. | 06-30-2011 |
| 20130081419 | HEAT PUMP CYCLE - In a heat pump cycle, refrigerant tubes of an outdoor heat exchanger serving as an evaporator for evaporating refrigerant, and cooling fluid tubes of a radiator for dissipating heat from a coolant of an electric motor for traveling serving as an external heat source are bonded to the same outer fins. The heat contained in the coolant flowing through the cooling fluid tubes can be transferred to the refrigerant tubes of the outdoor heat exchanger via the outer fins. Thus, in the defrosting operation which involves defrosting the outdoor heat exchanger by flowing the coolant through the radiator, the loss in transfer of the heat contained in the coolant to the outdoor heat exchanger can be suppressed, and the heat supplied from the electric motor for traveling can be effectively used for defrosting the outdoor heat exchanger. | 04-04-2013 |
| 20130098092 | HEAT PUMP - A first bypass pipe has one end connected to a main pipe extending from a compressor to an indoor heat exchanger, and its other end branched off into parts that are each connected to the main pipe on an inlet side of an outdoor heat exchanger, and a second bypass pipe has one end connected to an injection port communicating with the compression chamber of the compressor in which compression is taking place and its other end branched off into parts that are each connected to the main pipe on an outlet side of the outdoor heat exchangers. During a defrosting operation that removes frost on the outdoor heat exchangers, a part of the refrigerant discharged from the compressor is supplied from the first bypass pipe to the outdoor heat exchanger to be defrosted, and is then passed through the second bypass pipe and injected from the injection port of the compressor. | 04-25-2013 |
| 20140182320 | AIR-CONDITIONING APPARATUS - An air-conditioning apparatus includes: an outdoor unit including a compressor, a first refrigerant flow path switching device, and a heat-source-side heat exchanger; a heat medium relay unit including an intermediate heat exchanger, an expansion device, a second refrigerant flow path switching device, and a pump; and at least one indoor unit including a use-side heat exchanger. The compressor, the first refrigerant flow path switching device, the expansion device, the second refrigerant flow path switching device, and the intermediate heat exchanger are connected using a refrigerant pipe, thereby making up a refrigeration cycle. The intermediate heat exchanger and the use-side heat exchanger are connected using a heat medium pipe, thereby making up a heat medium circulation circuit in which a heat medium different from the refrigerant circulates. | 07-03-2014 |
| 20140360216 | GAS DEFROSTING SYSTEM FOR REFRIGERATION UNITS USING FLUID COOLED CONDENSERS - A gas defrosting system is disclosed for efficiently defrosting refrigeration units using fluid-cooled condensers. For each refrigeration unit in refrigeration mode, a cool condenser fluid is applied to the condenser to achieve a high thermodynamic efficiency. For each refrigeration unit in defrost mode, a warm defrost fluid is applied to the condenser to expedite the defrost process. | 12-11-2014 |
| 20150114023 | HEAT PUMP SYSTEM - In a heat pump system according to the present invention, at least part of a plurality of outdoor heat-exchanging flow paths that pass through an outdoor heat exchanger is alternately selected as a flow path for defrosting and is used, and the other flow path is used as a flow path for evaporation so that defrosting and a heating operation can be simultaneously performed. In addition, the refrigerant in which a defrosting action is performed, while passing through the outdoor heat exchanger, is throttled and then is used for an evaporation action so that the structure of the heat pump system is simple and both heating and defrosting can be performed. | 04-30-2015 |
| 062279000 | Means conducting atmospheric condensate to heat rejecter | 3 |
| 20110209492 | Condensate Removal By Means Of Condensate Evaporation In A Refrigeration Device - The invention relates to a condensate evaporator for a cooling device that comprises at least an evaporator and a compressor ( | 09-01-2011 |
| 062280000 | Pump or thrower for condensate | 2 |
| 20090064698 | Condensate liquid pumping system - A condensate liquid pumping system pumps from a reservoir outlet condensate liquid received from an air-handling apparatus. A filter located upstream of the reservoir outlet filters the condensate liquid. A filter blockage sensor located upstream of the filter senses a predetermined liquid level upstream of the filter which is indicative of blockage of the filter. The filter and the filter blockage sensor may be disposed inside the reservoir. The filter may be a removable filter that can be easily withdrawn for service or replacement without disassembling the reservoir or disconnecting or disturbing any of the tubing or other components of the reservoir or the condensate liquid pumping system. | 03-12-2009 |
| 20120006044 | Condensate Evaporation Device Having Evaporation Coil - A condensate evaporation device for a refrigerator is provided. The device comprises a container, a heat exchanger, a chamber, a suction pump, a condensate spraying device, an evaporation coil, and a blower. The suction pump is for sucking up the condensate from the container. The condensate spraying device is for spraying the condensate sucked up by the suction pump within the chamber. The evaporation coil is disposed around the condensate spraying device such that the condensate from the suction pump lands on an inner surface of the evaporation coil and evaporates the condensate. The blower is for inducing air flow within the chamber, whereby the evaporated condensate is exhausted from the chamber. | 01-12-2012 |
