Lg Electronics Inc.

Korea Institute of Science and Technology

Sam Chul Ha

Cheol Hwan Kim

Dae Woong Kim

Koon Seok Lee

Ja In Koo

Seung Myun Baek

Hwan Jong Choi

Jeong Hyun Lim

Sung Hwan Kang

Young Hwan Ko

Jong Min Sin

Bong Jun Choi

Ki Hwan Kim

Hyung Jin Jung

Hong Seok Choi

Won Kook Choi

Seong Hae Jeong

Young Won Jeong

Seong Hai Jeong

Sung Hee Kang

Seok-Keun Koh

Kyoung Jun Park

Byung Ha Kang

Dong-Sik Youn

Chang Yong Jang

Ji Young Bae

Hyeon Jin Kim

Young Cheol Jeong

Alexei V Tikhonov

Sung-Chang Choi

Seung Tae Ko

Seoug Geum Heo

Myeong Ho Lee

Myung Seok Park

Tae Hee Cho

Young H-316 Lg Electronics Senghwalgwan Jeong

A rotary compressor having two different compression capacities is provided. The rotary compressor may include a driving shaft that is rotatable in both a clockwise and counterclockwise direction, and having an eccentric portion at an end thereof. The compressor may also include cylinder having a predetermined inner volume, and a roller rotatably installed on an outer circumferential portion of the eccentric portion so as to contact an inner circumference of the cylinder and form a fluid chamber therebetween. A vane is elastically installed in the cylinder and contacts the roller, and upper and lower bearings are respectively installed at upper and lower portions of the cylinder so as to rotatably support the driving shaft and hermetically seal the inner volume of the cylinder. Suction and discharge ports communicate with the fluid chamber based on a rotational direction of the driving shaft so as to provide a different compression capacity depending on the rotational direction of the driving shaft.

Variable capacity rotary compressor

A communication apparatus and a method for supporting carrier sense multiple access/collision detection (CSMA/CD) are disclosed. In a home network having a plurality of peripheral apparatuses in one home bus, the communication apparatus includes an interface circuit for transmitting and receiving packet data by being connected to the home bus; a data transmitting circuit for converting transmission data generated from inner peripheral apparatuses into physical transmission data and then for outputting the data on the home bus through the interface circuit; a data receiving circuit for determining whether data transmitted from other peripheral apparatuses through the interface circuit are received in its own peripheral apparatus and for checking a current state of the home bus; a collision detection circuit for continuously detecting a current state of the home bus through the data receiving circuit; and a communication controlling part for controlling data which are output form the data transmitting circuit by detecting a state of the home bus detected from the collision detection circuit.

Communication apparatus and method for supporting carrier sense multiple access/collision detection

A method for separating multiple home networks networked in one communication line into each home network is disclosed, which includes the steps of forming home network for networking apparatuses in the house to communicate with one another, setting individual home codes to each apparatus, connecting the home networks formed in a plurality of houses to one another, and forming packet data including the home codes for communicating.

Method for separating multiple home networks

Fuel cell including an electrolyte, an anode and a cathode on both sides of the electrolyte, a cathode side separator at an outer side of the cathode having a flow passage for flow of air, and a flow passage between the electrolyte and the anode, thereby improving an electricity generating performance.

Fuel cell having flow passage

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, comprising the steps of: (a) positioning an anode electrode which is substantially of metal to be surface-modified and a cathode electrode in a chamber, (b) maintaining a pressure in the chamber at a predetermined vacuum level, (c) blowing a reaction gas composed of an unsaturated aliphatic hydrocarbon monomer gas or fluorine-containing monomer and silicon containing monomer gas at a predetermined pressure and a non-polymerizable gas at a predetermined pressure into the chamber, and (d) applying a voltage to the electrodes in order to obtain a DC discharge, whereby to obtain a plasma consisting of positive and negative ions and radicals generated from the unsaturated aliphatic hydrocarbon monomer gas and the non-polymerizable gas, and then forming a polymer with hydrophilicity or hydrophobicity on the surface of the anode electrode by plasma deposition, and there is also 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 an RF plasma.

Plasma polymerization enhancement of surface of metal for use in refrigerating and air conditioning

A method for setting a product address in a home network system is disclosed. The method includes a step for requesting a temporary address in which a network controller designates redundant addresses with a predetermined range to each product and requests an arbitrary address among the redundant address as a temporary address; a step for designating a temporary address in which each product designates an arbitrary address among the redundant addresses as a temporary address and informs to a network controller; and a step for confirming an address in which the network controller sequentially sets one of the redundant addresses for each address not doubled among informed temporary addresses from each product.

Method for setting product address in home network system

An apparatus for fixing an eletrode of an electrode of plama polymerization apparatus is provided, which comprises; a nonconductive holder for fixing an electrode by covering an end part of the electrode, a leadline connecting the electrode with a power supply, and a fixing part fixing the holder on a chamber wall.

Apparatus for fixing an electrode in plasma polymerizing apparatus

The present invention relates to a heat exchanger in a refrigerator having a simple structure and an improved heat exchange performance. For this, the present invention includes refrigerant tubes () having a plurality of straight parts () and a plurality of curved parts () connected between the straight parts arrange to form one or more columns perpendicular to each other, a plurality of straight plate type fins () fitted to the straight parts () of the refrigerant tubes () by means of a plurality of through holes () formed therein to form one or more than columns along a length direction, and one pair of reinforcing plates () fitted to the straight parts of the refrigerant tubes on both sides of the fins, wherein ST=D/N, where D denotes a width of the reinforcing plate (), ST denotes a distance between centers of the refrigerant tube in each column, N denotes a number of the columns of the refrigerant tubes ().

Heat exchanger for refrigerator

A heat exchanger is provided for a refrigerator and includes one or more refrigerant tubes for refrigerant flow, and a plurality of straight fins having lengths different from each other fitted to the refrigerant tubes at fixed intervals in parallel to each other by means of through holes formed therein. The heat exchanger includes sections having different intervals or spaces between fins, wherein sections with the smallest fin spaces have a size 75% or less of a total size of the heat exchanger.

Fin tube type evaporator in an air conditioner including tubes for flow of a refrigerant therethrough, and fins each having a plurality of collars for coupling with the tubes, and a plurality of slits formed between the collars, wherein drain means of a predetermined form is formed between the collars, thereby draining the condensed water smoothly and reducing an air flow resistance, and leakage of condensed water out of the air conditioner.

Fin tube type evaporator in air conditioner

Growing community of inventors

Changwon-si, South Korea

Sam Chul Ha