Geonho
Geonho Jang, Seoul KR
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20120235867 | META-MATERIAL MIMO ANTENNA - A meta-material MIMO antenna is disclosed, wherein the meta-material MIMO antenna includes a substrate; a first top radiator formed at one side of top surface of the substrate, and including an inner radiator and an outer radiator discrete from the inner radiator to encompass the inner radiator from outside; a second top radiator symmetrically formed against the first top radiator and formed on the other side of the top surface of the substrate; a first bottom radiator electrically connected to the first top radiator and formed on one side of bottom surface of the substrate; a second bottom radiator symmetrically formed against the first bottom radiator and formed on the other side of the bottom surface of the substrate; and a coupler remover interposed between the first and second bottom radiators, whereby the antenna can be miniaturized to enhance a high isolation. | 09-20-2012 |
Geonho Jang, Incheon-Si KR
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20120256703 | BANDPASS FILTER AND ELECTRONIC DEVICE - A bandpass filter includes resonator coupling line on which a plurality of composite right/left-handed (CRLH) resonators are disposed. The plurality of CRLH resonators are inductively coupled with each other. The design variables can be increased through inductive coupling in the resonance period. Also, the skirt characteristics and the isolation can be improved. | 10-11-2012 |
Geonho Lee, Seongnam-Si KR
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20100329915 | SCROLL COMPRESSOR COMPRISING OIL SEPARATING DRIVING SHAFT - The present invention relates to a scroll compressor, with an oil-separating drive shaft, that comprises a housing a fixed scroll which is installed inside the housing, a orbiting scroll which orbits around the fixed scroll, and a drive shaft which drives the orbiting scroll. In the orbiting scroll, a discharge hole is formed. A discharge path is formed along the longitudinal direction of the drive shaft so that discharged coolant from the discharge hole flows therethrough. At least, a part of the discharge path is inclined forward from the rotary axis to the exterior. A lubrication hole is formed in the drive shaft that penetrates from the discharge path to the outer surface of the drive shaft. | 12-30-2010 |
20110008197 | INVERTER TYPE SCROLL COMPRESSOR - The present invention relates to an inverter type scroll compressor and comprises a housing, a fixed scroll which is set up inside the housing, an orbiting scroll which orbits around the fixed scroll, a driving unit which turns the orbiting scroll, an intake port and a discharge port which are in the housing, and an inverter which faces the front surface of the fixed scroll. An intake hole penetrating to the compression chamber and a discharge hole are respectively formed in the fixed scroll and the orbiting scroll. Accordingly, the present invention is configured so that the coolant is discharged through the discharge hole after the coolant passes through the inverter and the fixed scroll and then flows into the compression chamber. | 01-13-2011 |
20110146215 | OIL SEPARATOR - An oil separator comprises: a hollow outer body having an inlet and a drain hole; and an inner tube spaced apart from an inner peripheral surface of the outer body and having a discharge hole at a center thereof. The inner peripheral surface of the outer tube guides oil toward the drain hole opposite to the discharge hole. The present invention provides an oil separator that maximizes an oil separating effect through enhancement of a centrifugal force. The present invention also provides an oil separator that maximizes an oil separating performance by preventing gas and oil from being remixed by guiding the flow direction of the oil separated by a centrifugal force using a spiral portion and a taper. | 06-23-2011 |
Geonho Lee, Gyeonggi-Do KR
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20100272583 | VALVE PLATE OF RECIPROCATING COMPRESSOR - Provided is a valve plate of a reciprocating compressor, the reciprocating compressor including a front housing and a rear housing, a cylinder block having a plurality of cylinder bores, a drive shaft rotatably supported by the front housing and the cylinder block, a swash plate connected to the drive shaft to be rotated therewith to vary its inclination angle, pistons reciprocally accommodated in the cylinder bores depending on slide movement of the swash plate, a valve plate installed between one end of the cylinder block and the rear housing and having a suction port and a discharge port, and a suction chamber and a discharge chamber that are formed in the rear housing with the valve plate interposed therebetween, characterized in that an oil suction passage, an oil discharge passage and a coolant supply passage are formed in a surface of the valve plate opposite to the pistons, the oil discharge passage is constituted by at least two branch passages directed from a center part toward an outer periphery of the valve plate, and the branch passages are connected by a connecting passage at the center part. Therefore, it is possible to appropriately distribute the pressure of oil to prevent oil leakage to the coolant supply passage, etc., even when the pressure of the oil discharged through the oil discharge passage is high. Further, the branch passages and the connecting passage have a specific shape to enable smooth flow of the oil. | 10-28-2010 |
Geonho Lee, Anseing-Shi KR
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20080223208 | Assembly structure of drive shaft and swash plate in swash plate type compressor - Provided is an assembly structure of a drive shaft and a swash plate in a swash plate type compressor including a housing, a cylinder block having a plurality of cylinder bores, a drive shaft rotatably supported by the cylinder block or the housing, a swash plate installed at the drive shaft to vary its tilt angle with respect to the drive shaft, and pistons reciprocally accommodated in the cylinder bores, characterized in that the assembly structure includes: a swash plate tilt support pin fixedly installed at the drive shaft to cross the drive shaft; a hinge coupling groove formed in the swash plate to be rotatably coupled to a tip of the swash plate tilt support pin in a tilted manner, and a swash plate support part formed in the swash plate to support the drive shaft. | 09-18-2008 |
20090191081 | SCROLL COMPRESSOR IMPROVED IN FUNCTION OF OIL CIRCULATION AND BACK PRESSURE CONTROL - Provided is a scroll compressor having an improved function of oil circulation and back pressure control. The scroll compressor includes: a housing; a drive part for generating a rotational force; a drive shaft driven by the drive part; and a scroll compression part including a stationary scroll fixed regardless of rotation of the drive shaft and having a scroll wrap for compressing sucked fluid and a discharge port for supplying coolant into a discharge chamber, and an orbiting scroll orbited depending on rotation of the drive shaft and having a scroll wrap, characterized in that the coolant compressed by the scroll compression part is conveyed to the discharge chamber, the coolant of the discharge chamber is separated into oil and gas in an oil separator, the gas being discharged through a discharge hole and the oil being supplied into a back pressure chamber through a return path formed in the stationary scroll, and the oil is returned into a suction chamber through a back pressure adjustment valve. | 07-30-2009 |
20100135828 | VARIABLE DISPLACEMENT SWASH PLATE TYPE COMPRESSOR - Provided is a variable displacement swash plate type compressor including a cylinder block having a plurality of cylinder bores, a front housing disposed in the front of the cylinder block to form a swash plate chamber, a drive shaft rotatably supported by the cylinder block, a lug plate disposed in the swash plate chamber of the front housing and fixed to the drive shaft, a rear housing disposed in the rear of the cylinder block to form a suction chamber and a discharge chamber in communication with the cylinder bores through suction/discharge valves, a swash plate rotated by the lug plate to vary its inclination angle, a spring supported between the lug plate and the swash plate, and pistons slidably engaged with the swash plate and reciprocally accommodated in the cylinder bores, characterized in that a power transmission groove is formed at a rear part of the lug plate opposite to the swash plate, a hooking projection inserted into the power transmission groove is formed at a front part of the swash plate opposite to the lug plate, and slide blocks are installed at a pin projecting from both sides of the hooking projection to be interposed between an inner side surface of the power transmission groove and an outer side surface of the hooking projection. | 06-03-2010 |
Geonho Yoon, Suwon-Si KR
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20130271405 | METHOD AND APPARATUS FOR DISPLAYING KEYPAD USING ORGANIC LIGHT EMITTING DIODES - A method and an apparatus for displaying a keypad on a touch screen are provided. The apparatus includes an Organic Light Emitting Diode (OLED). The method includes arranging at least one keypad block including at least one area, determining at least one light-emitting area among the areas, and displaying the at least one keypad block by emitting light in the OLED corresponding to the at least one light-emitting area. | 10-17-2013 |