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Jeong-Hwa
Jeong-Hwa Cha, Hwaseong-City KR
| Patent application number | Description | Published |
|---|---|---|
| 20090193806 | VARIABLE TURBOCHARGER AND CONTROL METHOD FOR THE SAME - A variable turbocharger including a turbine housing, a first scroll fluidly communicating with a turbine, a second scroll formed along an outside of the first scroll, wherein the first scroll and the second scroll are disposed within the turbine housing for exhaust gas to exhaust through the turbine, a partitioning unit for selectively separating the first scroll and the second scroll, and a a flux control valve disposed at the exhaust gas inflow portion and selectively coupled to the partitioning unit for blocking the exhaust gas from flowing into the second scroll. The variable turbocharger may prevent turbo lag at a low speed and be highly efficient at a high speed. | 08-06-2009 |
| 20110108001 | COMPRESSION IGNITION GASOLINE ENGINE - A compression ignition gasoline engine uses low-cetane number fuel, such as gasoline. The engine includes a combustion control device having an injector directly injecting fuel into a combustion chamber, intake and exhaust valves, and a variable valve device changing a valve timing, in which the compression ignition gasoline engine includes: at least two intake valves and two exhaust valves; a spark plug positioned at the center portion of the combustion chamber; and an injector positioned adjacent to the spark plug toward the center portion of the combustion chamber, in which the exhaust valve is a symmetric valve lift in which the lift and the opening section of the tow exhaust valves are the same in low lift, and the intake valve is an asymmetric valve lift in which the lift and the opening of the two intake valves are different in the low lift. | 05-12-2011 |
Jeong-Hwa Kim, Suwon-Si KR
| Patent application number | Description | Published |
|---|---|---|
| 20090041515 | FUSNG UNIT AND IMAGE FORMING APPARATUS INCLUDING THE SAME - A fusing unit of an image forming apparatus includes: a belt; and first and second end supporting members disposed at opposing ends of the belt, to support a rotation of the belt. At least one of the first and second end supporting members has a lubricant container formed in a surface thereof, to supply a lubricant to lubricate the rotation of the belt. | 02-12-2009 |
Jeong-Hwa Song, Suwon-Si KR
| Patent application number | Description | Published |
|---|---|---|
| 20090222528 | Resource sharing method and system - A resource sharing method for a resource sharing system for a plurality of edge peers that individually store a resource and a plurality of super peers that manage the plurality of edge peers or resource information including a name of the resource that includes at least one key word is provided. In the resource sharing system, the super peers distribute and manage resource information of the edge peers according to a key word. Therefore, if a resource is requested using part of a name of a resource desired by a certain edge peer, the super peer searches for resources including the resource desired by the edge peer. Therefore, a user of an edge peer may acquire a desired resource even using part of a name of a desired resource. | 09-03-2009 |
Jeong-Hwa Yang, Seoul KR
| Patent application number | Description | Published |
|---|---|---|
| 20090326957 | OPERATION METHOD OF INTERACTIVE REFRIGERATOR SYSTEM - An operation method of an interactive refrigerator system, includes displaying information about stored items corresponding to a speech input by a user, generating and outputting a response message for the information about the stored items, checking whether or not storage periods of the stored items are expired; and outputting expiration information about storage periods of the stored items or expected expiration information about storage periods of the stored items. | 12-31-2009 |