| Patent application number | Description | Published |
|---|
| 20080217706 | SEMICONDUCTOR DEVICE AND METHOD OF MANUFACTURING THE SAME - There is provided a method of manufacturing a semiconductor device, including forming a structure including a first layer containing Si and a metal oxide layer in contact with the first layer, the metal oxide layer having a dielectric constant higher than that of silicon oxide, and heating the structure in an atmosphere containing He and/or Ne. | 09-11-2008 |
| 20090193840 | TURBO COMPRESSOR AND REFRIGERATOR - A turbo compressor includes a first impeller and a second impeller, which are spaced apart at a predetermined distance from each other in a direction of an axis and are fixed such that their backs face each other, in a rotation shaft which is rotatably supported around the axis. Two angular contact ball bearings are provided between the first impeller and the second impeller to rotatably support the rotation shaft around the axis. The two angular contact ball bearings are combined such that their fronts face each other. According to this turbo compressor, robustness can be improved against the inclination of the rotation shaft, any damage of the bearings can be prevented, and the lifespan thereof can be extended. | 08-06-2009 |
| 20110219809 | TURBO COMPRESSOR AND TURBO REFRIGERATOR - A turbo compressor according to the present invention supports a rotational shaft fixed to an impeller by a bearing in a freely rotatable manner, and supplies the lubricant oil to a plurality of sliding portions that are slid due to the rotation of the rotational shaft. Furthermore, the turbo compressor includes a oil supply nozzle in which a first injection hole, which injects the lubricant oil toward a predetermined first fueling place among a plurality of sliding portions to be supplied with the lubricant oil, and a second injection hole, which injects the lubricant oil toward a second fueling place different from the first fueling place, are provided. According to the present invention, it is possible to provide a turbo compressor capable of reducing the labor and the costs of manufacturing and a turbo refrigerator including the same. | 09-15-2011 |
| 20110219812 | TURBO COMPRESSOR AND TURBO REFRIGERATOR - Provided is a turbo compressor configured to compress a gas in cooperation with a rotatable impeller and a diffuser formed around the impeller and to discharge the compressed gas to the outside thereof through a scroll chamber communicating with the diffuser, the turbo compressor including: an impeller casing which is formed by integrally molding a body portion surrounding the impeller and forming a part of a the scroll chamber and a partition plate provided at the rear surface side of the impeller; and a shroud cover which is provided at the inside of the body portion to surround the impeller and forming the scroll chamber in cooperation with the body portion. | 09-15-2011 |
| 20110219813 | TURBO COMPRESSOR AND TURBO REFRIGERATOR - A turbo compressor according to the present invention includes: a flow rate adjustment section which adjusts the flow rate of gas that is introduced into an impeller; a driving section which drives the flow rate adjustment section; and a power transmission shaft which transmits power that is generated by the driving section to the flow rate adjustment section, wherein the turbo compressor further includes a frame which is provided to surround the flow rate adjustment section, and the frame has an intake port for gas that is introduced into the impeller and a hole portion in which the power transmission shaft is provided passing through. | 09-15-2011 |
| 20110232324 | TURBO COMPRESSOR, TURBO REFRIGERATOR, AND METHOD OF MANUFACTURING TURBO COMPRESSOR - A turbo compressor includes an impeller fixed to one end portion of a rotation shaft by a predetermined fastening member, and a regulating portion which is used to regulate rotation of the rotation shaft during fastening of the fastening member and is provided in the other end portion of the rotation shaft. The regulating portion is formed as a recessed portion recessed from an end surface of the other end portion of the rotation shaft. | 09-29-2011 |
| 20110236202 | CASING STRUCTURE - Provided is a casing structure including: an annular seal member which is disposed at a connection portion between first and second casings to keep air-tightness between an internal space formed by connecting the first and second casings to each other and an outside of the internal space; a first screw member which is threaded from the internal space, is disposed at the inside of the seal member in the radial direction, and fastens the first and second casings to each other; and a second screw member which is threaded from the outside, is disposed at the outside of the seal member in the radial direction, and fastens the first and second casings to each other. | 09-29-2011 |
| 20110236204 | METHOD OF MANUFACTURING ROTOR ASSEMBLY, ROTOR ASSEMBLY, AND TURBO COMPRESSOR - A method of manufacturing a rotor assembly in which a first impeller and a second impeller are fixed to a rotation shaft which is supported by a bearing so as to be rotatable, the method including: fixing the second impeller to the rotation shaft; fitting and fixing a sleeve to the rotation shaft after fixing the second impeller; fitting and fixing the bearing to the sleeve after fitting and fixing the sleeve; and fixing the first impeller after fitting and fixing the bearing. | 09-29-2011 |
