Abstract: The present disclosure relates to a variable compressor that may include a housing, a recirculation slit, a bladder, and a pressure providing device. The recirculation slit is formed in an inlet port of the compressor housing so as to discharge a portion of a fluid flowing into the inlet port to the outside of the inlet port and then reintroduce the portion of the fluid into the inlet port. The bladder is installed to expand and contract so as to change a cross-sectional area of the recirculation slit. The pressure providing device is disposed to expand and contract the bladder.

Abstract: The present disclosure relates to a variable compressor that may include a housing, a recirculation slit, a bladder, and a pressure providing device. The recirculation slit is formed in an inlet port of the compressor housing so as to discharge a portion of a fluid flowing into the inlet port to the outside of the inlet port and then reintroduce the portion of the fluid into the inlet port. The bladder is installed to expand and contract so as to change a cross-sectional area of the recirculation slit. The pressure providing device is disposed to expand and contract the bladder.

Abstract: A separation chamber type anti-surge valve may include a valve body formed with a charge air passage inlet and a charge air passage outlet, and a valve cover coupled to the valve body by a fastening member to define an empty inner space between the valve body and the valve cover, in which the inner space is divided into a diaphragm chamber and a bypass chamber by a valve guide, one side tip of a valve rod being fixed in the diaphragm chamber, a valve disc fixed to another side tip of the valve rod, and the diaphragm chamber is divided into a control pressure chamber and a normal static pressure chamber.

Abstract: The present disclosure provides a device for variably controlling a flow rate of intake air of a turbocharger compressor including a housing, a compressor wheel, a sliding insert disposed in a straight tube in the housing coaxially with the straight tube, wherein the sliding insert variably adjusts an intake air recirculation passageway while moving closer to or farther from the straight tube in an axial direction, and a drive unit which provides power for moving the sliding insert, such that efficiency of the compressor may be improved because a flow rate of intake air is increased as the intake air is recirculated, and performance of an engine may be improved by improving performance of a turbocharger because an air amount required for the engine may be controlled by means of a variable slit structure.

Abstract: A separation chamber type anti-surge valve may include a valve body formed with a charge air passage inlet and a charge air passage outlet, and a valve cover coupled to the valve body by a fastening member to define an empty inner space between the valve body and the valve cover, in which the inner space is divided into a diaphragm chamber and a bypass chamber by a valve guide, one side tip of a valve rod being fixed in the diaphragm chamber, a valve disc fixed to another side tip of the valve rod, and the diaphragm chamber is divided into a control pressure chamber and a normal static pressure chamber.

Abstract: An anti-surge valve opens or closes a path depending on a negative pressure formed at an intake manifold, and includes an operating unit movable in a direction in response to the negative pressure, a spring means provided to push the operating unit in a direction opposite to the moving direction of the operating unit in response to the negative pressure, a spring mounting portion for mounting the spring means, and a diaphragm disposed to cover an outer surface of the operating unit. The diaphragm may be formed in a substantially hollow cylindrical shape and include a circumference portion formed along a circumference of an opened top surface of the diaphragm, a coupling portion formed along a circumferential direction from an outer end of the circumference portion, and a side portion extended substantially vertically from an inner end of the circumference portion, and has substantially uniform outer and inner diameters.

Abstract: An anti-surge valve includes a diaphragm partitioning an internal space formed by a valve body and a cover into spaces in which a pressure chamber connected to a connection port, an air inlet and an air outlet are formed; a valve cup assembled to the diaphragm; a coupling member that fixes the diaphragm and the valve cup; and a spring that elastically supports the diaphragm in the pressure chamber. In the anti-surge valve, a side wall of the valve cup has a sectional shape concave toward the center of the valve along the entire circumference thereof so that a side portion of the diaphragm is deformed toward the center of the valve while being adhered closely to an outer surface of the side wall of the valve cup in a state in which an edge portion of the diaphragm is fixed by the valve body and the cover.

Abstract: An optical pickup apparatus and a method of combining a submount and an optical bench of the optical pickup apparatus are provided. The optical pickup apparatus includes an optical bench, a submount installed on the optical bench, a light source mounted on the submount, a lens unit joined to the optical bench, and an optical path separator which separates light that is emitted from the light source and then proceeds to the lens unit from light that is incident from the lens unit, wherein the submount is soldered to the optical bench.