Abstract:
A gas turbine according to the present invention includes: a strut which passes through an outer diffuser and an inner diffuser, and connects an exhaust chamber wall and a bearing housing; a strut cover which covers the strut along the extending direction of the strut; a partitioning wall which is arranged between the inside of the inner diffuser in the radial direction and the outside of the bearing housing in the radial direction, of which the upstream side portion is sealed between the bearing housing and the partitioning wall, of which the downstream side portion is sealed between the inner diffuser and the partitioning wall, and in which a strut through-hole through which the strut passes is formed; and a hole seal member which seals a gap between the strut through-hole and the strut.
Abstract:
A gas turbine includes a gas turbine body in which a rotor is rotated with the energy of combustion gas produced by combustion of fuel to take out rotational energy from the rotor, an inlet casing that is attached to the gas turbine body and that guides the air to a compressor section compressing the air, an air intake chamber that is connected to the inlet casing and that guides the air taken in from the atmosphere to the gas turbine body, and a notch so formed in the air intake chamber as to cover the entire range where the rotor passes or exists when the rotor is moved.
Abstract:
A variable vane drive device includes a movable ring disposed at an outer circumferential side of a casing of an axial-flow compressor and having an annular shape, four ring support mechanisms disposed at intervals in a circumferential direction of the movable ring and rotatably supporting the movable ring around a rotor, and a link mechanism for connecting the movable ring to a variable vane such that a direction of the variable vane is varied by rotation of the movable ring. The ring support mechanisms have inner rollers, outer rollers, and roller support bases for rotatably supporting the inner rollers and the outer rollers in a state in which the movable ring is sandwiched between the inner roller and the outer rollers.
Abstract:
A cover for a cooling passage is disclosed forming a cooling passage for supplying cooling air to a turbine rotor blade at the last stage via inside of a disk of a turbine, and the cover includes a cylindrical cover portion that covers a cavity provided in a annular pattern in an outer circumference of the disk in a mode where a first passage opened from inside of the disk to the cavity and a second passage opened from a cooling passage of the turbine rotor blade at the last stage to the cavity are connected to each other; and a flexible portion that is formed integrally with the cover portion and allows flexure in an axial direction of the turbine.
Abstract:
To include a cooling passage leading from a latter stage of a compressor, via an external cooler, to a hollow part provided in a load coupling that couples a rotor of the compressor and a rotor of a turbine to each other, and also leading from the hollow part to the latter stage of the compressor, and a centrifugal compressor that raises air pressure in the hollow part with rotation of the load coupling, in the hollow part. Therefore, pressure of the air in the hollow part is raised by the centrifugal compressor by using a centrifugal force resulting from the rotation of the load coupling at the time of operating the gas turbine. Cooled air flows from the hollow part to between compressor rotor blades and compressor vanes at the latter stage, and then flows into the hollow part, thereby enabling to efficiently reduce temperature in the hollow part.
Abstract:
In a turbine disk and a gas turbine, the turbine disk is firmly connected to a rotor (24) to be rotatably supported; a plurality of rotor blades (22a) is arranged on an outer circumference thereof in a circumferential direction; first cooling holes (42) penetrating the turbine disk from inside toward outside thereof and being communicatively connected to a cooling passage (41) arranged inside of the rotor blades (22a) are arranged in the circumferential direction; second cooling holes (43) arranged between each of the first cooling holes (42) and penetrating the turbine disk from the inside toward the outside thereof are provided; and the first cooling holes (42) and the second cooling holes (43) are communicatively connected by way of a radial direction communicating channel (47), to alleviate concentration of stress and to improve durability.
Abstract:
LCD device including: a first LCD panel for displaying an image in a transmission mode; a second LCD panel for displaying an image in a reflection mode; and a power supply circuit for supplying a first counter voltage for displaying in the transmission mode to a first counter electrode of the first LCD panel and a second counter voltage for displaying in the reflection mode to a second counter electrode of the second LCD panel, wherein the first counter voltage and the second counter voltage are at voltage levels mutually different from one another.
Abstract:
An information device (300) includes: first judgment elements (304) for judging whether an information recording device specified by circumstances information (400a) recorded on a second recording medium (100) coincides with the information recording device which has performed MOVE process; and control elements (307) for controlling display elements (305, etc.) so as to display that the first content information (HD content) can be reproduced if the coincidence is confirmed by the first judgment elements, controlling the content information generation elements (308, etc.) so as to generate first content information according to the circumstances information, and controlling the reproducing elements (310, etc.) so as to reproduce the generated first content information.
Abstract:
A permanent magnet which contains R, T and B as main ingredients wherein R is Y or a rare earth element and T is Fe or Fe and Co and has a primary phase of R.sub.2 T.sub.14 B is produced by compacting a mixture of 60 to 95 wt % of a primary phase-forming master alloy and a grain boundary phase-forming master alloy both in powder form and sintering the compact. The primary phase-forming master alloy has columnar crystal grains of R.sub.2 T.sub.14 B with a mean grain size of 3-50 .mu.m and grain boundaries of an R rich phase and contains 26-32 wt % of R. The grain boundary phase-forming master alloy is a crystalline alloy consisting essentially of 32-60 wt % of R and the balance of Co or Co and Fe. In anther form, a permanent magnet which contains R, T and B as main ingredients wherein R is yttrium or a rare earth element, T is Fe or Fe+Co/Ni and has a primary phase of R.sub.2 T.sub.14 B is produced by compacting a mixture of a primary phase-forming master alloy and a grain boundary-forming master alloy both in powder form and sintering the compact. The primary phase-forming master alloy has a primary phase of R.sub.2 T.sub.14 B and grain boundaries of an R rich phase. The grain boundary-forming master alloy contains 40-65 wt % of R, 30-60 wt % of Fe, Co or Ni and 1-12 wt % of Sn, In or Ga.
Abstract:
A gas turbine includes: a cooling air pipe disposed at a downstream side of a rotor main body without contacting with the rotor main body and configured to feed cooling air into a cooling air main passage of the rotor main body; a bearing downstream end shaft seal annularly disposed at an outer circumferential side of the rotor main body and at a downstream side of a bearing which rotatably supports the rotor main body; and a collecting flow passage member having a leaked air collecting flow passage that guides the cooling air, which is leaked from the bearing downstream end shaft seal to the bearing side, into an exhaust flow passage through which a combustion gas passing through a final blade stage flows.