Abstract: Disclosed herein is an orbiting vane compressor incorporating an orbiting vane with oil supply function that is capable of performing more smooth orbiting movement. The orbiting vane has a compression unit comprising an orbiting vane having a boss formed in the center thereof such that the upper end of a crankshaft having an oil supplying channel formed therethrough is fixedly fitted in the boss, the orbiting vane being disposed between an annular space defined between the inner wall of a cylinder and an inner ring, and an Oldham's ring disposed at the lower surface of the orbiting vane for preventing rotation of the orbiting vane. An oil supplying hole is formed on a vane plate of the orbiting vane outside the boss for allowing oil to be supplied to the upper surface of the vane plate.

Abstract: Disclosed herein is a capacity-changing unit disposed in an orbiting vane compressor, which compresses refrigerant gas introduced into a cylinder through an orbiting movement of an orbiting vane in the cylinder, for easily changing capacity of the orbiting vane compressor in a mechanical bypass fashion. The capacity-changing unit comprises a bypass channel communicating with an outer compression chamber formed in the cylinder, and a bypass valve disposed on the bypass channel for opening and closing the bypass channel. According to the present invention, the orbiting vane compressor is selectively operated not only in normal operation mode where compression is performed in an inner compression chamber as well as the outer compression chamber but also in economic operation mode where compression is performed only in the inner compression chamber.

Abstract: Provided is a dongle that is connected to a portable terminal for providing a mobile banking transaction service with a banking equipment that includes a banking transaction unit for providing a mobile banking transaction service with a banking equipment; an FM transmitter for outputting a sound source played in a portable terminal through a speaker of an external FM receiver; a charger for receiving an external voltage to charge the portable terminal; and a connector to be connected to the portable terminal simultaneously or individually in order to perform functions of the banking transaction unit, the FM transmitter, and the charger. The banking transaction related components are implemented with a single separate device, i.e., dongle, and can be mounted when necessary. Therefore, a separate banking related module (software and/or hardware) is unnecessary, thereby slimming the portable terminal.

Abstract: Disclosed herein is a linear compressor in which a piston reciprocally moves in a cylinder upon receiving a reciprocating drive force of a linear motor to compress working-fluid, for example, refrigerant, received in the cylinder. The linear compressor comprises a piston adapted to reciprocally move in a cylinder, the piston being internally formed with a suction path, and a suction valve inserted in the suction path of the piston to move relative to the suction path, the suction valve performing opening/closing operations as it moves relative to the piston when the piston reciprocally moves. With this configuration, the suction valve always exhibits an even stroke, achieving an improvement in response and durability and minimizing vibration and noise due to the opening/closing operations thereof.

Abstract: Disclosed herein is a linear compressor wherein a piston and a cylinder are arranged to extend vertically in a shell, and oil suction paths are formed in the cylinder for introducing oil stored in the shell into a space between the cylinder and the piston without requiring oil pumping parts, whereby a simplified oil supply structure can be accomplished via a reduced number of parts, and therefore, manufacturing costs and assembling time can be reduced.

Abstract: Disclosed herein is a capacity-changing unit of an orbiting vane compressor that is capable of performing normal operation and no-load operation in inner and outer compression chambers through simple manipulation of a rotary valve plate, thereby easily changing the capacity of the compressor according to operation modes. The capacity-changing unit comprises a rotary valve plate disposed between a cylinder and a subsidiary frame for opening or closing a communication channel connected between an inlet port of the cylinder and inner and outer outlet ports of the cylinder as an actuator is rotated in alternating directions. Consequently, the present invention has the effect of reducing power consumption and preventing reduction in service life of the parts of the orbiting vane compressor due to repetitive on/off operation of the orbiting vane compressor, and therefore, improving the performance and reliability of the orbiting vane compressor.

Abstract: A sound output system and method of a mobile communication terminal, which can output high-fidelity sound even with small-diameter speakers. The sound output system comprises a sound signal reproduction system for reproducing a sound signal to be output by the mobile communication terminal; a plurality of amplifiers, each of which is connected with the sound signal reproduction system and amplifies the sound signal input from the sound signal reproduction system; a plurality of speakers, each of which is connected with each of the amplifiers and outputs the sound signal amplified by each of the amplifiers; and a control section for controlling the sound signal reproduction system, the amplifiers, and the speakers, respectively, according to sound output modes.

Abstract: Disclosed herein is a horizontal type orbiting vane compressor having a horizontal structure. The horizontal type orbiting vane compressor comprises a horizontally disposed shell having an inlet tube and an outlet tube, a compression unit disposed in the shell at one side of a horizontally disposed rotary shaft such that the compression unit is rotated by a drive unit for compressing refrigerant gas, and an oil-supplying unit for supplying oil from an oil sump to an oil hole extending through the rotary shaft by an orbiting movement of an orbiting vane in the compression unit. When the horizontal type orbiting vane compressor is applied to an air conditioner, an outdoor unit of the air conditioner is greatly reduced in size.

Abstract: Disclosed herein is a horizontal type orbiting vane compressor having a horizontal structure. The horizontal type orbiting vane compressor comprises a horizontally disposed shell having an inlet tube and an outlet tube, a compression unit disposed in the shell at one side of a horizontally disposed rotary shaft such that the compression unit is rotated by a drive unit for compressing refrigerant gas, and an oil-supplying unit for supplying oil from an oil sump formed at the lower part of the shell to an oil hole extending through the rotary shaft by the discharge pressure of the compressed high-pressure refrigerant gas. When the horizontal type orbiting vane compressor is applied to an air conditioner, an outdoor unit of the air conditioner is miniaturized.

Abstract: Disclosed herein is an oil supply structure for a slider of an orbiting vane compressor capable of providing effective lubrication to reciprocating surfaces of the slider reciprocating in an annular space of a compressor cylinder. The oil supply structure comprises an oil supply slot formed at an upper surface of an inner ring provided in the cylinder to supply oil to outer surfaces of the slider, and oil grooves formed at the outer surfaces of the slider to guide the oil, supplied through the oil supply slot, along the outer surfaces of the slider. The oil supply structure achieves effective lubrication of the reciprocating surfaces of the slider to thereby reduce friction between the slider and the cylinder, resulting in improved compressor performance.

Abstract: Disclosed herein is a low-pressure type orbiting vane compressor that is capable of diverging low-temperature and low-pressure refrigerant gas introduced into a shell through an inlet tube to an inlet port of a cylinder and a drive unit so as to simultaneously compress the refrigerant gas and cool the drive unit. The orbiting vane compressor comprises a vertical baffle disposed in the shell while being spaced apart from the inner end of the inlet tube, and a diverging channel defined between the baffle and the inlet tube, the diverging channel having one end communicating with the inlet port of the cylinder and the other end communicating with the drive unit. Consequently, the present invention has the effect of preventing overheating of the drive unit, and therefore, improving performance and reliability of the orbiting vane compressor.

Abstract: Disclosed herein is a dual-piston valve for orbiting vane compressors. The dual-piston valve comprises a valve housing having a pair of piston operation spaces defined therein and a pair of pistons disposed in the piston operation spaces of the valve housing such that the pistons can be vertically moved to open or close inner and outer outlet ports formed at a cylinder. At one end of the valve housing are formed a pair of through-holes, which communicate with the piston operation spaces, respectively. Gas outlet ports are formed at opposite longitudinal sides of the valve housing. With the above-stated construction, compressed refrigerant gas is properly discharged, and therefore, performance of the orbiting vane compressor is prevented from being deteriorated due to over-compression loss of refrigerant gas.

Abstract: Disclosed herein is an axial force reducing structure of an orbiting vane compressor that is capable of reducing an axial force, i.e. upright force to be applied downward from the upper surface of a vane plate provided in an orbiting vane of the compressor. The axial force reducing structure includes a protrusion formed along the outer periphery of an annular space defined in a compressor cylinder, and a recessed portion around the protrusion, thereby serving to reduce an axial force of high-pressure refrigerant gas to push the vane plate to the cylinder.

Abstract: Disclosed herein is a smart control valve for compressors that is capable of easily accomplishing compression and communication in a compression chamber of a cylinder, without performing the repetitive on/off operation of the compressor, to change the capacity of the compressor. The smart control valve comprises a valve body mounted on a cylinder including refrigerant inlet and outlet ports, a valve inlet port formed at the valve body and communicating with the refrigerant inlet port of the cylinder, a valve outlet port formed at the valve body and communicating with the refrigerant outlet port of the cylinder, an actuating groove disposed under the valve inlet port and the valve outlet port of the valve body, and an actuator disposed in the actuating groove for performing a linear reciprocating movement in the actuating groove as a solenoid is operated.

Abstract: Disclosed herein is a compression unit of an orbiting vane compressor. The compression unit comprises a circular operation space formed in a cylinder, the circular operation space having opposite ends, a circular vane disposed in the operation space for performing an orbiting movement, the circular vane having opposite ends, a linear slider disposed in the operation space for performing a linear reciprocating movement while one end of the linear slider is in contact with the end of the circular vane, and a pressurizing member disposed in the operation space adjacent to the other end of the linear slider for applying pressure to the linear slider such that the linear slider is brought into tight contact with the circular vane. Consequently, interference between the inner wall of the cylinder and the circular vane is prevented, and creation of dead volume in the operation space is prevented.

Abstract: Disclosed herein is a slider adapting apparatus for orbiting vane compressors. A circular vane of an orbiting vane is disposed in an annular space defined in a cylinder. A pair of sliders is coupled with the circular vane for performing reciprocating movement along the annular space while being in tight contact with both ends of an opening formed at the circular vane to seal between compression chambers formed in the annular space. The slider adapting apparatus comprises a gap defined between the sliders, which are spaced apart from each other, and a gap maintaining part for maintaining the gap while increasing and decreasing the gap. Using the slider adapting apparatus, damage to parts and a locking phenomenon due to severe interference between the circular vane and the sliders are prevented, and therefore, a drive unit of the orbiting vane compressor is effectively prevented from suffering overload and catching fire.

Abstract: Disclosed herein is a capacity-changing unit of an orbiting vane compressor that is capable of selectively accomplishing compression or communication in inner and outer compression chambers of a cylinder through simple manipulation of a valve, thereby easily changing the capacity of the orbiting vane compressor. The capacity-changing unit includes a smart control valve comprising a valve body disposed on the cylinder, a first actuating part formed at one side of the valve body for performing compression and communication in the inner compression chamber of the cylinder, and a second actuating part formed at the other side of the valve body for performing compression and communication in the outer compression chamber of the cylinder.

Abstract: Disclosed herein is a back pressure apparatus for orbiting vane compressors that is capable of reducing excessive axial force applied to an orbiting vane due to high-pressure refrigerant gas introduced to the lower surface of a vane plate of the orbiting vane. The back pressure apparatus comprises a back pressure chamber formed at the upper surface of a main frame, which is brought into tight contact with the lower surface of a vane plate of an orbiting vane, and a low-pressure gas communication part for allowing the back pressure chamber and an inlet port to communicate with each other therethrough. Consequently, the present invention has the effect of preventing excessive friction between the orbiting vane and the inner surface of a cylinder, preventing damage to the orbiting vane compressor due to the friction, and preventing deterioration of performance of the orbiting vane compressor due to the frictional loss.

Abstract: An orbiting scroll compressor includes: a frame fixed in a casing; a driving motor fixed in the casing and supplying a driving force; a fixed scroll fixed in the casing; an orbiting scroll forming a first compression space as its one side is interlocked with the fixed scroll, and orbiting by being eccentrically coupled to a driving shaft connected to the driving motor; an orbiting vane protruding from the other side of the orbiting scroll to a predetermined height and forming a second compression space with a vane receiving groove of the frame; a capacity varying unit communicating with the second compression space and varying its capacity; and a control unit connected to the capacity varying unit and controlling the capacity varying unit. Thus, as the orbiting vane is provided, compression performance is improved while maintaining the size of the compressor.

Abstract: An apparatus for changing capacity of a multi-stage compressor comprises: a first cylinder provided with a first suction and a first discharge port, and divided into a first suction chamber and a first compression chamber by a first rolling piston which orbits and a first vane which makes a linear movement in contact with the first rolling piston; a second cylinder provided with a second suction port and a second discharge port, and divided into a second suction chamber and a second compression chamber by a second rolling piston which orbits and a second vane which makes a linear movement in contact with the second rolling piston; a middle bearing inserted between the first cylinder and the second cylinder, having a bypass hole to allow communication between the compression chambers of the first cylinder and the second cylinder, and having a valve hole for communication in the middle of the bypass hole; a sliding valve slidingly coupled to the valve hole of the middle bearing, and selectively opening or closi