Abstract: The present invention provides a 2 stage rotary compressor (100) including a hermetic container (101), a 2 stage compression assembly provided in the hermetic container, wherein a low pressure compression assembly (120), a middle plate (130) and a high pressure compression assembly (140) are successively stacked from any one of upper and lower portions, a first discharge port (124) for discharging middle pressure refrigerant compressed in the low pressure compression assembly (120) a second discharge port (162p) for discharging high pressure refrigerant compressed in the high pressure compression assembly (130) and a third discharge port (172p) positioned at any one of the upper and lower portions of the 2 stage compression assembly to discharge high pressure refrigerant compressed in the 2 stage compression assembly to the hermetic container (101), wherein an area of the third discharge port (172p) is larger than 0.5 times of an area of the first discharge port and smaller than 1.0 times thereof.

Abstract: The present invention provides a 2 stage rotary compressor including a hermetic container (101) defining an outward appearance of the compressor (100), a 2 stage compression assembly provided in the hermetic Container, wherein a low pressure cylinder (121), a middle plate (140) and a high pressure cylinder (131) successively stacked from any one of upper and lower portions, and first discharge port (161p) discharging refrigerant compressed in the low pressure cylinder (121), and having an inner volume equivalent to 0.5% to 2.5% of an inner volume of the low pressure cylinder (121). A valve is installed on or under the discharge port. When the valve is opened, compressed refrigerant is discharged through the discharge port. When the valve is closed, refrigerant remains in the discharge port as much as the volume of the discharge port. Accordingly, refrigerant remaining in the discharge port is re-expanded in the cylinder to thereby cause a compression loss.

Abstract: A capacity varying type rotary compressor and a refrigeration system having the same are provided. The capacity varying type rotary compressor includes a casing that contains a certain amount of oil and maintains a discharge pressure state; a motor installed in the casing that generates a driving force; one or more cylinder assembly fixed in the casing, having a compression space that compresses a refrigerant by a rolling piston that performs an orbit motion and a vane that performs a linear motion by contacting the rolling piston, and having a vane pressure chamber formed at a rear side of the vane that implements a normal driving as the vane contacts the rolling piston or a saving driving as the vane is separated from the rolling piston; and a mode switching device that selectively supplies a suction pressure or a discharge pressure to the vane pressure chamber of the cylinder assembly according to a driving mode.

Abstract: The present invention provides a 2 stage rotary compressor including a hermetic container (101), an electric motor (110) provided in the hermetic container (101) and composed of an stator (111), a rotor (112) and a rotation axis (113), a low pressure compression assembly (120) including a low pressure cylinder (121), a low pressure eccentric portion (122) rotated along an inner diameter of the low pressure cylinder (121) due to rotation of the rotation axis (113), a low pressure roller (123) rotatably coupled to the outside of the low pressure eccentric portion (122), and a low pressure vane (124) for partitioning off an inner space of the low pressure cylinder (121), a high pressure compression (130) assembly including a high pressure cylinder (131), a high pressure eccentric portion (132) rotated along an inner diameter of the high pressure cylinder (130) due to rotation of the rotation axis (113) a high pressure roller (133) rotatably coupled to the outside of the high pressure eccentric portion (132), and

Abstract: Provided is a variable capacity rotary compressor, which has a passage for restricting a vane using a pressure applied towards a perpendicular direction to a direction of a motion of the vane. A ratio between a sectional area of the passage and a vane area of the vane facing the passage and receiving a restriction pressure applied thereto ranges from 1.5% to 16.4%, and accordingly the vane can smoothly perform a reciprocation upon a normal driving mode of the compressor and also the vane can be quickly restricted upon a saving driving mode of the compressor. Hence, the fast and stable restriction of the vane can prevent a vibration of the vane, so as to reduce noise generated from the compressor.

Abstract: A capacity varying rotary compressor is provided. The compressor includes a casing that maintains a discharge pressure state, a motor installed in the casing that generates a driving force, one or more cylinder assemblies provided in the casing to compress refrigerant with a rolling piston and a vane. The rolling piston is eccentrically coupled to a rotation shaft of the motor to perform a linear motion, and a vane restricting device restricts or releases the vane from the rolling piston according to a difference in pressures applied to the vane. A structure of the compressor may be simplified, resulting in reduced production costs and enhanced productivity. Further, as the vane is restricted by a pressure differential, reliability may be enhanced.

Abstract: An apparatus for manufacturing a liquid crystal display (LCD) device includes a table receiving an LCD panel thereon, a first grinding part grinding a surface of the LCD panel to a first surface roughness, a second grinding part grinding the surface of the LCD panel grinded to the first surface roughness to a second surface roughness, wherein the second surface roughness is smoother than the first surface roughness, and a polishing part polishing the surface of the LCD panel which is grinded to the second surface roughness.

Abstract: A variable capacity rotary compressor is provided, in which a vane may be restricted by a pressure difference generated between both side surfaces of the vane when the compressor performs in a saving driving mode. The vane may be restricted quickly and stably by rapidly decreasing a pressure of a vane chamber by leaking a discharge pressure of the vane chamber to an inlet via a low pressure passage and thereby increasing a pressurizing force applied to a side surface of the vane relatively greater than a supporting force applied to a rear surface thereof. In this way, the vane may be prevented from being vibrated due to a weak restriction force of the vane when a power driving mode of the compressor is switched into the saving driving mode, which prevents noise from increasing due to design conditions, thereby enhancing a comfort feeling of a user.

Abstract: A capacity varying rotary compressor is provided. The compressor includes a cylinder mounted in a casing, and a vane pressure chamber provided at a rear side of a vane that divides an inner space of the cylinder into a suction chamber and a compression chamber. A pressure controlling unit supplies a discharge pressure or a suction pressure to the vane pressure chamber to thereby restrict or release a motion of the vane. A pressure leakage preventing unit couples the cylinder and bearings positioned at opposite sides of the cylinder to form the vane pressure chamber. A capacity to compress and discharge a refrigerant may be varied according to a load, thereby reducing power consumption of the compressor and simplifying assembly. Furthermore, pressure leakage from the vane pressure chamber may be prevented, thereby enhancing a capacity varying function.

Abstract: A system for manufacturing a liquid crystal display includes a rotatable stage and a plurality of heads located on the rotatable stage. Each head is separated from each of its neighboring heads by a predetermined distance. The heads are enabled to rotate together with the rotatable stage in order to transport a tape carrier package (TCP). A first head retains the TCP and is located at a first position enabling the TCP to be detected. The first head is located at a second position enabling the first TCP to be pressed. The second position is different from the first position.

Abstract: A muffler for a hermetic rotary compressor including a muffler body forming a plurality of noise reducing spaces in which refrigerant gas flows; a discharge port formed on the muffler body so as to be located on the nose reducing spaces side; and a guide cover coupled to an inner wall of the muffler body in radial direction for guiding the refrigerant gas flowing in the noise reducing spaces to be discharged to the discharge port, and therefore the noise generated during the discharge of the compressed refrigerant gas to inside a sealed chamber, and a flow resistance for the discharged refrigerant gas is reduced, whereby the electric power consumption is reduced, and the structure and assembling processes can be simplified.

Abstract: A capacity varying type rotary compressor and a refrigeration system having the same. The capacity varying type rotary compressor comprises a casing containing a certain amount of oil and maintaining a discharge pressure state; a motor installed in the casing and generating a driving force; one or more cylinder assembly fixed in the casing, having a compression space for compressing a refrigerant by a rolling piston that performs an orbit motion and a vane that performs a linear motion by contacting the rolling piston, and having a vane pressure chamber formed at a rear side of the vane, for implementing a normal driving as the vane contacts the rolling piston or implementing a saving driving as the vane is separated from the rolling piston; and a mode switching unit for selectively supplying suction pressure or a discharge pressure to the vane pressure chamber of the cylinder assembly according to a driving mode.

Abstract: A capacity varying type rotary compressor comprises a cylinder mounted in a casing (100) having a discharge pressure state, a vane pressure chamber (C) provided at a rear side of a vane (440) that divides an inner space of the cylinder into a suction chamber and a compression chamber with a rotation shaft (230) inserted into the cylinder thus to be rotated or a rolling piston (340, 430) inserted into the rotation shaft (230), a pressure controlling unit (500) for supplying a discharge pressure or a suction pressure to the vane pressure chamber (C) and thereby restricting or releasing a motion of the vanel (440), and a pressure leakage preventing couple unit for coupling the cylinder (410) and bearings (330, 420) positioned at both sides of the cylinder (410) and forming the vane pressure chamber (C) with the cylinder (410) to each other and thereby preventing a pressure leakage of the vane pressure chamber (C).

Abstract: An apparatus for manufacturing a liquid crystal display (LCD) device includes a table receiving an LCD panel thereon, a first grinding part grinding a surface of the LCD panel to a first surface roughness, a second grinding part grinding the surface of the LCD panel grinded to the first surface roughness to a second surface roughness, wherein the second surface roughness is thinner than the first surface roughness, and a polishing part polishing the surface of the LCD panel which is grinded to the second surface roughness.

Abstract: A capacity varying type rotary compressor comprises a casing (100) that maintains a discharge pressure state; a motor (200) installed in the casing (100) and generating a driving force; one or more cylinder assembly (300,400) fixed in the casing (100) and compressing a refirgerant by a rolling piston (340,430) and a vane (350,440), the rolling piston (340,430) eccentrically coupled to a rotation shaft (230) of the motor (200) and performing a linear motion; and a vane restricting unit (500) for restricting the vane (440) separated from the rolling piston (430) or releasing the vane (440) thereby contacting to the rolling piston (430) according to a difference of pressures applied to the vane (440). In the rotary compressor, an entire structure is simplified thereby to minimize precessing assemblies, resulting in reducing aproduction cost and enhancing a productivity. Furthermore, as the vane (440) is restricted by using a pressure difference of the system, a relibility is enhanced.

Abstract: A roll-fed system including a supply reel on which a continuum is wound, a cutter for separating a portion of the continuum from the continuum, a transferrer for transferring the continuum, and a plurality of supply controlling pulleys which are disposed between the cutter and a supply reel and move in opposed directions, wherein the continuum is alternately wound on each circumferential surface of the plurality of supply controlling pulleys and is transferred by the transferrer.

Abstract: A system for manufacturing a liquid crystal display includes a rotatable stage and a plurality of heads located on the rotatable stage. Each head is separated from each of its neighboring heads by a predetermined distance. The heads are enabled to rotate together with the rotatable stage in order to transport a tape carrier package (TCP). A first head retains the TCP and is located at a first position enabling the TCP to be detected. The first head is located at a second position enabling the first TCP to be pressed. The second position is different from the first position.

Abstract: A muffler for a hermetic rotary compressor comprises: a muffler body (100) forming a plurality of noise reducing spaces (140) in which refrigerant gas flows; a discharge port (110) formed on the muffler body (100) so as to be located on the nose reducing spaces side; and a guide cover (200) coupled to an inner wall of the muffler body in radial direction for guiding the refrigerant gas flowing in the noise reducing spaces to be discharged to the discharge port (110), and therefore the noise generated during the discharge of the compressed refrigerant gas to inside a sealed chamber, and a flow resistance for the discharged refrigerant gas is reduced, whereby the electric power consumption is reduced, and the structure and assembling processes can be simplified.

Abstract: The present invention relates to a hermetic rotary compressor. More particularly, since the conventional rotary compressor has problems that the effect of a surge recess for reducing noises due to pressure pulsation is insufficient, and it is impossible to obtain the maximum compression efficiency, the present invention is constructed such that noises due to pressure pulsation can be reduced to the maximum and at the same time the compressive driving force required for compressing gaseous refrigerant is decreased to thereby improve the compression efficiency.