1
Lee Jun Kang, Jang Kil Sang, Ahn Yong Gwi, Han In Cheol, Park Chang Ho, Ahn Hwang Jae: Heat exchanger. Halla Climate Control, April 2, 2003: EP1298401-A2 (10 worldwide citation)

A heat exchanger uses a refrigerant acting under a high pressure, such as carbon dioxide, as a refrigerant. The heat exchanger includes first (10) and second (20) header pipes arranged a predetermined distance from each other and parallel to each other, each having at least two chambers (12,14,22,24 ...


2
Ahn Yong Gwi, Lee Sang Yui, Lee Jung Han, Kim Seung Hwan, Kim Deok Soo, Lim Youn Woo, Ye Dong Hee, Jung Kwang Yong, Kim Jin Hyoung, Lee Jun Kang: Air conditioning system for a vehicle, capable of quickly heating the inside of the vehicle without spending extra energy. Halla Climate Control, March 24, 2008: KR1020060090863

PURPOSE: An air conditioning system for a vehicle is provided to quickly heat the inside of the vehicle during an initial ignition by using high-temperature refrigerant which is separated from bypassed refrigerant of a compressor. CONSTITUTION: An air conditioning system for a vehicle comprises a co ...


3
Ahn Yong Gwi, Jang Gil Sang, Kim Deok Su, Kim In Gap, Kim Seung Hwan, Lee Sang Ryul, Park Chang Ho: Oil separator with built-in compressor. Halla Climate Control, June 27, 2002: KR1020000079891

PURPOSE: An oil separator with built-in compressor is provided to efficiently control descending amount of pressure of lubricant and to prevent impurities from blocking an oil passage. CONSTITUTION: A pressure drop control pin(23) is installed in an oil returning passage to control drop of pressure ...


4
Ahn Yong Gwi, Lim Youn Woo, Oh Kwang Heon: Tube for heat exchanger, mainly concerned with maintaining regular thickness of wall and stimulating turbulence of refrigerant. Halla Climate Control, January 6, 2005: KR1020030041100

PURPOSE: A tube for a heat exchanger is provided to maintain regular thickness of a wall even if a hydraulic diameter is small, and stimulate turbulence of a refrigerant, thereby improving heat transfer performance. CONSTITUTION: A refrigerant passage includes a plurality of inner passages(320) form ...


5
Ahn Yong Gwi, Lee Jun Gang: Heat exchanger. Halla Climate Control, April 7, 2003: KR1020010060975

PURPOSE: A heat exchanger is provided to reduce weight for using fluid such as carbon dioxide whose specific volume is greatly changed due to temperature. CONSTITUTION: A heat exchanger includes a first header pipe(10) and a second header pipe(20). The first header pipe has a first compartment(12) a ...


6
Ahn Yong Gwi, Lee Jun Gang: Heat exchanger. Halla Climate Control, April 7, 2003: KR1020010060973

PURPOSE: A heat exchanger is provided to cut off flow of heat in the heat exchanger and to improve pressure-proof quality. CONSTITUTION: A heat exchanger includes a first header pipe(10) and a second header pipe(20) placed parallel to each other and having at least two compartments(12,14,22,24) sepa ...


7
Ahn Yong Gwi, Kim Gwang Il, Kim In Gap, Park Chang Ho: Oil cooler. Halla Climate Control, May 9, 2003: KR1020010067613

PURPOSE: An oil cooler is provided to secure a flowing space for heat exchange medium by alternately installing beads on an inside and an outside of a laminated plate instead of a radiating fin. CONSTITUTION: A pair of plates(10) comprises an upper plate(11) and a lower plate installed to face the u ...


8
Ahn Yong Gwi, Lee Jun Gang, Lim Yeon U: Structure for coupling header pipe of heat exchanger for oxygen dioxide. Halla Climate Control, December 6, 2003: KR1020020029797

PURPOSE: A structure for coupling a header pipe of a heat exchanger for oxygen dioxide is provided to allow the heat exchanger to endure oxygen dioxide refrigerant with high working pressure without largely changing a usual structure of the heat exchanger. CONSTITUTION: A plurality of insertion groo ...


9
Ahn Yong Gwi, Kim Seung Hwan, Kim Yong Ho: Integral type heat exchanger. Halla Climate Control, December 6, 2003: KR1020020030485

PURPOSE: An integral type heat exchanger is provided to improve productivity by allowing radiating fins on first heat exchanger side and second heat exchanger side to be temporarily connected and assembled by clad, to be brazed, and to be separated into two pieces so that the radiating fins go witho ...


10
Lee Sang Yul, Ahn Yong Gwi, Lim Youn Woo: Two-layer air flow type air conditioner having a cylindrical door formed with a opening. Halla Climate Control, February 22, 2007: KR1020050075279

PURPOSE: An air conditioner of a two-layer air flow type is provided to remove frost without deterioration of room heating efficiency by carrying out two-layer air flow mode by a door, which separately moves room air and atmospheric air toward a defrost vent and a floor vent in a simplified mechanic ...