Abstract: A filter holder comprises: a plurality of filter frames disposed such that at least some thereof are adjacent to each other; and a folding member which supports filter frames, from among the plurality of filter frames, adjacent to each other so as to be rotatable with respect to each other. The folding member comprises: a folding part which has a predetermined thickness and is flexible so as to be foldable by means of rotation of the adjacent filter frames adjacent with respect to each other; and a plurality of edge parts which are connected to the respective sides of the folding part with the folding portion therebetween and rotate together with the adjacent filter frames, and wherein when viewed from a cross-section of the folding member, the edge parts may have a greater thickness than the folding part.

Abstract: A method of manufacturing a labyrinth sealing device mounted between a diaphragm and a turbine rotor of a turbine to induce smooth rotation of the turbine rotor and prevent a leakage of gas by minimizing friction is presented. A labyrinth sealing device includes a ring-shaped body and a labyrinth part protruding from one surface of the ring-shaped body. The ring-shaped body is manufactured by centrifugal casting or ring mill, and the labyrinth part is manufactured by 3D printing.

Abstract: An example electronic device includes a housing; a touchscreen display; a microphone; at least one speaker; a button disposed on a portion of the housing or set to be displayed on the touchscreen display; a wireless communication circuit; a processor; and a memory. When a user interface is not displayed on the touchscreen display, the electronic device enables a user to receive a user input through the button, receives user speech through the microphone, and then provides data on the user speech to an external server. An instruction for performing a task is received from the server. When the user interface is displayed on the touchscreen display, the electronic device enables the user to receive the user input through the button, receives user speech through the microphone, and then provides data on the user speech to the external server.

Abstract: An air filter comprises: a first filter frame in which a plurality of first chambers are formed; a second filter frame in which a plurality of second chambers are formed and which is arranged at the rear of the first filter frame; and a filter material which is accommodated in the plurality of first chambers and the plurality of second chambers to filter air, wherein the first filter frame and the second filter frame are arranged so that, when seen from the front, the center of each of the plurality of second chambers is out of line with the center of each of the plurality of first chambers, in the vertical direction.

Abstract: A vehicle seat reinforcement device includes a leg portion mounted on a floor panel, a seat cushion frame slidably mounted on the leg portion, and a load reinforcing structure connected between the leg portion and the seat cushion frame, wherein when a seat belt anchorage load is transferred to the seat cushion frame, the seat cushion frame is locked to the leg portion by the load reinforcing structure.

Abstract: The present invention relates to a method of manufacturing a labyrinth sealing device mounted between a diaphragm and a turbine rotor of a turbine in order to induce smooth rotation of the turbine rotor and prevent a leakage of gas by minimizing friction between a rotor, such as the turbine rotor, and a stator, such as the diaphragm, when the rotor rotates in the stator, wherein the labyrinth sealing device includes a ring-shaped body and a labyrinth part protruding from one surface of the ring-shaped body, the ring-shaped body is manufactured by centrifugal casting or ring mill, and the labyrinth part is manufactured by 3D printing. The method of manufacturing a labyrinth sealing can improve productivity by reducing material costs and machining costs by manufacturing the labyrinth part (or teeth) protruding from the ring-shaped body using three-dimensional printing after manufacturing the ring-shaped body by centrifugal casting or ring mill.

Abstract: The present invention relates to a method for manufacturing a core plug of a gas turbine vane, and more particularly to plan and design a core plug formation using brazing comprising: a first step of designing and planning a formation of a core plug; a second step of cutting a Hastelloy X plate according to the design of the core plug; a third step of fabricating a preform of the core plug; a fourth step of spot-welding a trailing edge; a fifth step of pasting a brazing filler; a sixth step of performing brazing heat treatment; a seventh step of performing grinding a brazed portion; an eighth step of performing a grit blasting. According to the method for manufacturing a core plug of a gas turbine vane using brazing of the present invention above-mentioned, there is a significant effect of reducing manufacturing cost by in which the process is simple, and there is no deformation, shrinkages, cracks, and the like, in contrast with a conventional welding method.

Abstract: The present invention relates to a method for exhausting high concentrations of toxic gases generated during chemical stripping for high-temperature parts of a gas turbine, the method including the steps of: allowing a pair of openable/closable doors mounted on top of a tank whose top is open to accommodate a chemical substance therein to be closed during the chemical stripping so as to close top of the tank; collecting the toxic gases generated from the interior of the tank through hoods located at the inside of the tank; and exhausting the toxic gases to the outside through exhaust pipes mounted on the hoods or collecting the toxic gases to a separate storage tank.

Abstract: The present invention relates to a method for exhausting high concentrations of toxic gases generated during chemical stripping for high-temperature parts of a gas turbine, the method including the steps of: allowing a pair of openable/closable doors mounted on top of a tank whose top is open to accommodate a chemical substance therein to be closed during the chemical stripping so as to close top of the tank; collecting the toxic gases generated from the interior of the tank through hoods located at the inside of the tank; and exhausting the toxic gases to the outside through exhaust pipes mounted on the hoods or collecting the toxic gases to a separate storage tank.