Lg Electronics Inc.

Cheol-Hwan Kim

Yang-hee Cho

Jong-Min Shin

Su-Cheong Kim

Deok-Hyun Youn

Myung-Seok Park

Yong-Jun Hwang

Kyu-Jung Kim

Hoon-Bong Lee

Seong-Geun Heo

Myeong-Ho Lee

Tae-Hee Cho

Yong-Chol Kwon

Hong Seok Choi

Su-Won Lee

Dong-Koo Shin

Hyo-Keun Park

Seung-Tae Ko

Ku-Young Son

Won-Young Chung

Jae-Hyun Soh

Ju-Hyun Kim

Byeong-Chul Lee

Se-Heon Choi

Sung-Yong Ahn

Dong-koo Shin

Byung-Kil Yoo

Sang-Ho Oh

Seon-Woong Hwang

Nam-Kyu Cho

Myung-Kyun K Kiem

Chan-Hwa Jeong

Ki-Tae Jang

Hae-Jin Oh

Hong-Gyun Jin

Chul-Su Jung

Seong-Tae Ko

Yong-Kyu Choi

In-Ho Won

Yang-Hee Cho

A refrigerator controls the temperature of an upper space and a lower space. A heat source supplier provides heat in the upper space. A control unit controls the heat source supplier based on the sensed temperature from a temperature sensor to maintain the temperature of the upper space to be higher than the temperature of the lower space, and control a cooling circuit to maintain the temperature of the lower space to be below the temperature of a maximum ice crystal formation zone of water and the temperature of the upper space to be over the temperature of the maximum ice crystal formation zone of water, thus maintaining a supercooled state of a stored liquid in the container as a preset state during a first time period.

Refrigerator

A refrigerator includes a control apparatus and a storing space composed of an upper space and a lower space between which the air or heat exchange is limited. The storing space has a liquid in a supercooled state. A determination unit calculates an accumulated time during which the temperature of the storing space is maintained in a supercooling temperature range below the maximum ice crystal formation zone of the stored liquid after the sensed temperature enters the supercooling temperature range, compares the accumulated time with a supercooled-state determination time and determines that the stored liquid is in the supercooled state if the accumulated time is equal to or greater than the supercooled-state determination time.

The present invention relates to a cooling apparatus with a passage therein to introduce the cool air from a cooling space into a non-freezing apparatus to cool a lower space of the non-freezing apparatus. A cooling apparatus includes a cooling space supplied with the cool air, a non-freezing apparatus installed in the cooling space and storing food in a non-frozen state, a cooling passage for introducing the cool air from the cooling space into the non-freezing apparatus, and a discharge passage for discharging the flow from the non-freezing apparatus to the cooling space.

Supercooling non-freezing compartment for refrigerator appliance

The present invention relates to a supercooling method and a supercooling apparatus which can maintain an object in a supercooled state. According to the present invention, a supercooling method includes a first cooling step of cooling a stored object toward a cooling temperature below a phase transition temperature thereof, a step of judging whether the stored object is released from a supercooled state in the first cooling step, a step of thawing the stored object when the stored object is released from the supercooled state, and a second cooling step of cooling the stored object toward a cooling temperature below zero that is higher than the lowest temperature of the stored object before the release of the supercooled state, wherein the first cooling step is continuously performed when the object is maintained in the supercooled state.

Supercooling method and supercooling apparatus

The present invention discloses a non-freezing refrigerator which can keep the contents in a non-frozen state by an electric field. The non-freezing refrigerator includes a setting unit for selecting and setting a magnitude and frequency of a voltage, a generating unit for generating an electric field according to the voltage having the set magnitude and frequency, and applying the electric field to a storing space for storing the contents, and a freezing cycle for cooling the storing space. The contents are kept in the non-frozen state below a phase transition temperature.

Non-freezing refrigerator

The present invention discloses an apparatus for supercooling which can stably maintain a liquid in a supercooled state at below a phase transition temperature. The apparatus for supercooling, which can maintain a supercooled state of a liquid or contents even below a phase transition temperature, comprises: a storage space for storing a container accommodating a liquid or contents containing the liquid; a cooling means for cooling the liquid or contents or the storage space below the phase transition temperature of the liquid or the contents; and a temperature maintaining unit for applying energy to the surface of the liquid or contents or to a gas near the surface, wherein the liquid or the contents are maintained in a supercooled state by preventing freezing nuclei from being formed on the surface of the liquid or contents or in the gas near the surface by application of energy.

Supercooling apparatus

The present invention relates to a supercooling recognition method and a supercooling apparatus which can rapidly and precisely judge whether a stored object is maintained in a supercooled state on the basis of a temperature thereof. A supercooling recognition method according to the present invention includes the steps of: cooling a stored object to below a temperature of a maximum ice crystal formation zone thereof; and judging whether the stored object is maintained in a supercooled state on the basis of a temperature thereof during the cooling step.

Supercooling recognition method and supercooling apparatus

A scroll compressor and a refrigerating machine including the same are provided. In the scroll compressor, an oil supply hole formed in an orbiting scroll guides oil from a space between a frame and the orbiting scroll to a space between a fixed scroll and the orbiting scroll, and an oil supply groove formed at the fixed scroll maintains communication with the oil supply hole, thereby rapidly supplying oil to a bearing surface between the fixed scroll and the orbiting scroll before the oil is introduced into a back pressure chamber. This enhances compressor efficiency by effectively preventing frictional losses and refrigerant leakage in such a compressor, and enhances energy efficiency for a refrigerating machine using such a compressor.

Scroll compressor and refrigerating machine having the same

The present invention discloses an apparatus for supercooling and a method of maMng slush thr&#x3b1;gh supercooling which generate a supercooled liquid by supplying cool air and energy, control the state of the supercooled liquid, store and supply the supercooled liquid, generate slush by applying an external force to the supercooled liquid, maintain the state of the slush, and supply the slush.

Apparatus for supercooling and method of making slush through supercooling

The present invention discloses a refrigerator including a liquid, cool air supplied to supercool the liquid, and a preventing means for preventing the liquid from existing as a solid phase, and a method of operating the refrigerator. The preventing means is at least one of an energy generator for supplying energy to the liquid supplied with the cool air to maintain the liquid in the supercooled state, a restricting member for interrupting the motion of the liquid, and a heater for converting the liquid converted into a solid phase into the liquid.

Refrigerator and method of operating a refrigerator

The present invention discloses an apparatus for supercooling and a method of operating the same which can solve supercooling release of a supercooled space and prevent external exposure of energy such as an electric field. The apparatus for supercooling includes a space cooled by cool air, for maintaining an inside object in a supercooled state by supply of energy preventing the object from being converted into a solid phase, a sensing unit for sensing supercooling release of the space or the object, and a heater engaged with the sensing unit, for applying heat to the space or the object.

Apparatus for supercooling, and method of operating the same

A hermetic compressor is provided, including a casing, having a suction pipe and discharge pipe connected thereto, a driving motor installed within the casing, a compressing device installed within the casing and operated by the driving motor to form compression chambers, an oil separator that separates oil from a refrigerant discharged from by compressing device, and an oil collecting pipe through which the oil separator communicates with the compression chambers. With this structure, oil can be appropriately supplied to one or more compressors based on capacity, thus improving reliability of oil distribution and enhancing compressor performance.

Hermetic compressor and refrigeration cycle having the same

A fuel cell system comprises: a fuel cell stack () where an anode () and a cathode () are arranged under a state that an electrolyte membrane is positioned therebetween; a fuel tank () for storing a fuel; a fuel circulation supply means () for circulation-supplying a fuel stored in the fuel tank () to the anode of the fuel cell stack; an air supply unit () connected to the cathode of the fuel cell stack () by an air supply line, for supplying oxygen, etc. to the cathode (); a sensing unit () for measuring a concentration of at least one of fuels supplied to the anode () and a control unit for receiving a signal of the sensing unit () and informing replacement time of a fuel. According to this, a fuel usage is maximized by informing replacement time of a used fuel and a filter () for filtering impurity by detecting a fuel consumption degree and an impurity generation amount.

Fuel cell system

A compressor and an oil separating device therefor are provided which are capable of always maintaining a predetermined amount of oil in the compressor without additionally providing an oil separating device along a refrigerating cycle system. This results in the refrigerating cycle system having simplified piping and the refrigerant discharged from the compressor having a constant pressure, thereby preventing a function of the refrigerating cycle system from being reduced. The compressor includes a casing, a compression device having a compression chamber disposed within the casing and configured to receive, compress, and output a refrigerant, and an oil separating device disposed within the casing. The oil separating device includes a separation chamber configured to circulate the refrigerant to separate oil therefrom, a guide member configured to direct the refrigerant discharged from the compression device, and a circulation member configured to receive the refrigerant from the guide member and direct the refrigerant into the separation chamber in a direction of circulation.

Compressor and oil separating device therefor

A fuel cell system comprises: a DBFC for generating a power by receiving a fuel; a PEMFC for generating a power by receiving hydrogen, a byproduct generated at an anode of the DBFC after a reaction, as a fuel; a supplementary power partially charged by a power generated at the DBFC and the PEMFC and discharging the charged power; a load sensing unit for sensing a load connected to the DBFC, the PEMFC, and the supplementary power; and a control unit for controlling a power of the DBFC, the PEMFC, and the supplementary power according to a load sensed by the load sensing unit and thereby selectively supplying to the load. According to this, hydrogen generated at the DBFC is recycled, and a load amount is sensed thus to stably correspond to a load variation, thereby maximizing a fuel usage efficiency and stably driving the system.

Growing community of inventors

Changwon-si, South Korea

Cheol-Hwan Kim