Abstract: A combustor, in which a flame holding region is formed at a location distant from a pilot burner to avoid burnout of the pilot burner and in which flame holding capability is increased to use a lean pre-mix gas for reducing NOx emission, is provided. The combustor includes a combustion liner having a cylindrical side wall that defines a combustion chamber; and a main burner positioned at a top portion of the combustion liner for injecting an annular pre-mix gas into the combustion chamber to form a reverse flow region at a downstream portion thereof, which region is oriented towards the top portion of the combustion chamber along a longitudinal axis. In this combustor, a pilot burner is arranged at the top portion for injecting a mixture of fuel and air only in a direction confronting the reverse flow region.

Abstract: A second bush of a torque rod is fastened and fixed such that a mating fastening member sandwiches an inner fitting in the axial direction. A rubber stopper on an acceleration side projecting from an outer fitting to the inner fitting is provided such that the rubber thickness increases toward a front end. The inner fitting is provided with a stopper contact forming a recessed space in which the rubber stopper is inserted. After the rubber stopper comes in contact with the stopper contact in a stopper function, the rubber stopper is deformed so as to fill the recessed space, and concurrently bulges in the axial direction to come in contact with the mating fastening member.

Abstract: A combustion device includes: a combustion liner in which a combustion chamber is formed; a main burner provided at a top portion of the combustion liner and including a premix passage configured to annularly inject a pre-mixed gas of a fuel and air into the combustion chamber and a radial swirler configured to introduce the fuel and the air to the premix passage in a radially inward direction; and a fuel injection pipe configured to inject the fuel to the radial swirler from an entrance side of the radial swirler, and the radial swirler is divided into a plurality of swirler stages by dividing plates in an axial direction.

Abstract: A combustor, in which a flame holding region is formed at a location distant from a pilot burner to avoid burnout of the pilot burner and in which flame holding capability is increased to use a lean pre-mix gas for reducing NOx emission, is provided. The combustor includes a combustion liner having a cylindrical side wall that defines a combustion chamber; and a main burner positioned at a top portion of the combustion liner for injecting an annular pre-mix gas into the combustion chamber to form a reverse flow region at a downstream portion thereof, which region is oriented towards the top portion of the combustion chamber along a longitudinal axis. In this combustor, a pilot burner is arranged at the top portion for injecting a mixture of fuel and air only in a direction confronting the reverse flow region.

Abstract: An object of the present invention is to provide a multifunctional gel material including a gel and solid materials, in which the solid materials are moderately dispersed within the gel by adjusting the specific gravities of the gel and the solid materials, or in which the solid materials are always arranged in the same predetermined positions within the gel by dispersing them to the predetermined positions with a positioning means. To achieve this object, the solid materials are dispersed within the gel by using any means. Specifically, the solid materials are dispersed within the gel by adjusting the specific gravity of the solid materials with the specific gravity of the gel. Furthermore, the solid materials are moderately dispersed within the gel by being appropriately arranged by a positioning means.

Abstract: An optical fiber probe comprises an optical fiber, a first protective pipe holding the optical fiber therein for protection, and a collet attached to a front part of the first protective pipe. An adhesive is filled in a base part of the first protective pipe to form a sealing plug. The first protective pipe is formed in a length such that the base part of the first protective pipe is cooled by natural cooling at temperatures nearly equal to an ordinary temperature.

Abstract: An optical fiber probe comprises an optical fiber, a first protective pipe holding the optical fiber therein for protection, and a collet attached to a front part of the first protective pipe. An adhesive is filled in a base part of the first protective pipe to form a sealing plug. The first protective pipe is formed in a length such that the base part of the first protective pipe is cooled by natural cooling at temperatures nearly equal to an ordinary temperature.