Abstract: A reticle enclosure includes a base including a first surface, a cover including a second surface and coupled to the base with the first surface facing the second surface. The base and the cover form an internal space that includes a reticle. The reticle enclosure includes restraining mechanisms arranged in the internal space and for securing the reticle, and structures disposed adjacent the reticle in the internal space. The structures enclose the reticle at least partially, and limit passage of contaminants between the internal space and an external environment of the reticle enclosure. The structures include barriers disposed on the first and second surfaces. In other examples, a padding is installed in gaps between the barriers and the first and second surfaces. In other examples, the structures include wall structures disposed on the first and second surfaces and between the restraining mechanisms.

Abstract: The present invention discloses an integrated choke assembly comprising: a base having a main body structure, a first protruding part and a second protruding part. A first choke has a first magnetic core and a first winding, wherein the first protruding part is arranged through the first opening of the first magnetic core so that the first choke is arranged on the upper surface of the main body structure, and the first winding is wound on the first magnetic core. A second choke has a second magnetic core and a second winding, wherein the second protruding part is arranged through the second opening of the second magnetic core so that the second choke is arranged on the lower surface of the main body structure, and the second winding is wound on the second magnetic core.

Abstract: A microturbine including a combustor, an igniter disposed adjacent to the combustor, and a plurality of fuel nozzles disposed adjacent to the combustor. The combustor includes a plurality of laser holes located merely in a region of the combustor.

Abstract: A fuel gas nozzle used in a microturbine includes a first chamber, a second chamber connected to the first chamber, a pilot fuel gas pipe, a main fuel gas pipe and an intake pipe. An intake zone and a mixing zone are respectively formed in the first chamber and the second chamber and are communicated with each other. The pilot fuel gas pipe is for introducing a first fuel gas into a downstream of the second chamber. The main fuel gas pipe is for introducing a second fuel gas into the mixing zone via the intake zone. The intake pipe is for introducing an air into the mixing zone. A centerline of the intake pipe is not intersected with a centerline of the second chamber, so as to induce a vortex flow field of the air flowing into the mixing zone for mixing the air and the second fuel gas.

Abstract: A fuel gas nozzle used in a microturbine includes a first chamber, a second chamber connected to the first chamber, a pilot fuel gas pipe, a main fuel gas pipe and an intake pipe. An intake zone and a mixing zone are respectively formed in the first chamber and the second chamber and are communicated with each other. The pilot fuel gas pipe is for introducing a first fuel gas into a downstream of the second chamber. The main fuel gas pipe is for introducing a second fuel gas into the mixing zone via the intake zone. The intake pipe is for introducing an air into the mixing zone. A centerline of the intake pipe is not intersected with a centerline of the second chamber, so as to induce a vortex flow field of the air flowing into the mixing zone for mixing the air and the second fuel gas.

Abstract: A micro turbine generator includes a compressor, a guide channel, an expansion chamber, and a recuperator. The expansion chamber includes an air inlet, an air outlet, and a guide vane structure. The air inlet is disposed at one end of the expansion chamber, connected with the compressor through the guide channel, and receives an air compressed by the compressor. The air outlet is disposed at the other end of the expansion chamber, connected with the recuperator, and discharges the air, allowing the air to enter the recuperator. The guide vane structure extends inward from an inner wall of the expansion chamber to allow the air to pass the guide vane structure before being discharged from the air outlet to enter the recuperator.

Abstract: An intake/outlet pipe optimization method for a rotary engine, comprising the steps of: (A) providing a rotary engine; (B) providing a simulation software package, to perform a series of simulations for the rotary engine according to different combinations of a pipe length, a pipe diameter, a pipe shape and a pipe angle, to determine an optimal combination of the pipe length, the pipe diameter, the pipe shape, and pipe angle, to obtain an optimal power output for the rotary engine; and (C) performing tests for the rotary engine, by utilizing the optimal combination of the pipe length, the pipe diameter, the pipe shape, and pipe angle obtained in step (B), to obtain a test optimized power output for the rotary engine.

Abstract: An exhaust channel of a microturbine engine, characterized by a tapering pipe for reducing the speed at which a high-temperature gas is discharged from the turbine and ensuring that the high-temperature gas induced into a recuperator produces a uniform, low-speed flow field, with a view to preventing any noticeable vortex region from developing in the channel, minimizing the pressure loss in the channel, and enhancing the heat exchange efficiency of the recuperator.

Abstract: An intake/outlet pipe optimization method for a rotary engine, comprising the steps of: (A) providing a rotary engine; (B) providing a simulation software package, to perform a series of simulations for the rotary engine according to different combinations of a pipe length, a pipe diameter, a pipe shape and a pipe angle, to determine an optimal combination of the pipe length, the pipe diameter, the pipe shape, and pipe angle, to obtain an optimal power output for the rotary engine; and (C) performing tests for the rotary engine, by utilizing the optimal combination of the pipe length, the pipe diameter, the pipe shape, and pipe angle obtained in step (B), to obtain a test optimized power output for the rotary engine.

Abstract: A micro turbine generator includes a compressor, a guide channel, an expansion chamber, and a recuperator. The expansion chamber includes an air inlet, an air outlet, and a guide vane structure. The air inlet is disposed at one end of the expansion chamber, connected with the compressor through the guide channel, and receives an air compressed by the compressor. The air outlet is disposed at the other end of the expansion chamber, connected with the recuperator, and discharges the air, allowing the air to enter the recuperator. The guide vane structure extends inward from an inner wall of the expansion chamber to allow the air to pass the guide vane structure before being discharged from the air outlet to enter the recuperator.

Abstract: A device for internal cooling and pressurization of rotary engine, comprising: a mechanical charger, a charger outlet tube, a core cooling intake tube, an engine air intake tube, a first valve, a second valve, and a third valve. The mechanical charger is mounted in a ventilated place. The charger outlet tube is used to dispense air, and the charger outlet tube has two sides, with one side coupled to the mechanical charger. The core cooling intake tube is connected to another side of the charger outlet tube, and is used to dispense air. The engine air intake tube is connected to another side of the charger outlet tube. The device for cooling and pressurization of rotary engine is capable of achieving improved cooling and performance of rotary engine, through switching a plurality of valves, in automatic control manner and/or in remote control manner.

Abstract: A device for internal cooling and pressurization of rotary engine, comprising: a mechanical charger, a charger outlet tube, a core cooling intake tube, an engine air intake tube, a first valve, a second valve, and a third valve. The mechanical charger is mounted in a ventilated place. The charger outlet tube is used to dispense air, and the charger outlet tube has two sides, with one side coupled to the mechanical charger. The core cooling intake tube is connected to another side of the charger outlet tube, and is used to dispense air. The engine air intake tube is connected to another side of the charger outlet tube. The device for cooling and pressurization of rotary engine is capable of achieving improved cooling and performance of rotary engine, through switching a plurality of valves, in automatic control manner and/or in remote control manner.

Abstract: An external cooling fin of a rotary engine is mounted onto the housings of the rotary engine and includes a plurality of cooling teeth for lowering the temperature of the rotary engine, and each cooling fin includes a root and two or more outstretching fin stems, and the root is coupled to the rotary engine housings, so as to achieve a high-efficiency heat dissipation.

Abstract: An intake/outlet pipe optimization method includes the steps of providing a rotary engine, measuring the pressure in an operation of the engine, designing the appearance of the intake/outlet pipes, adjusting the pressure wave in an air pipe and the pressure in an air chamber of the engine to increase the air intake and improve the output horsepower of the engine. The intake pipe is a tapered pipe having the pipe diameter on an intake side greater than the pipe diameter on the engine side; and the outlet pipe is an inversely tapered pipe having the pipe diameter on the engine side smaller than the pipe diameter on the outlet side.

Abstract: An internal cooling passage structure for rotary engine, which includes a rotary engine body, having a front frame, a mid-frame, a rear frame and a rotor, wherein the rotor has cooling passages beneath the rotor triangular apexes, and both front and rear frames respectively have corresponding openings; a rotor, rotating in the mid-frame, having the core cooling passages in full or partial connection with the openings in both front and rear frames in the engine operation; and a guide vane along the opening edge, wherein external air is guided into the rotor core cooling passages by the guide vane which avoids generating heat vortices and helps to increase the cooling air so as to lower the temperature on the rotor and its assemblies.

Abstract: An intake/outlet pipe optimization method and apparatus for a rotary engine are disclosed. The method includes the steps of providing a rotary engine, measuring the pressure in an operation of the engine, designing the appearance of the intake/outlet pipes, adjusting the pressure wave in an air pipe and the pressure in an air chamber of the engine to increase the air intake and improve the output horsepower of the engine. The intake pipe is a tapered pipe having the pipe diameter on an intake side greater than the pipe diameter on the engine side; and the outlet pipe is an inversely tapered pipe having the pipe diameter on the engine side smaller than the pipe diameter on the outlet side.

Abstract: An internal cooling passage structure for rotary engine, which includes a rotary engine body, having a front frame, a mid-frame, a rear frame and a rotor, wherein the rotor has cooling passages beneath the rotor triangular apexes, and both front and rear frames respectively have corresponding openings; a rotor, rotating in the mid-frame, having the core cooling passages in full or partial connection with the openings in both front and rear frames in the engine operation; and a guide vane along the opening edge, wherein external air is guided into the rotor core cooling passages by the guide vane which avoids generating heat vortices and helps to increase the cooling air so as to lower the temperature on the rotor and its assemblies.

Abstract: An external cooling fin of a rotary engine is mounted onto the housings of the rotary engine and includes a plurality of cooling teeth for lowering the temperature of the rotary engine, and each cooling fin includes a root and two or more outstretching fin stems, and the root is coupled to the rotary engine housings, so as to achieve a high-efficiency heat dissipation.

Abstract: A device for cooling and pressurization, which is composed of a charger, an outlet tube couples the mechanical charger, a first valve coupled to the charger outlet tube and a engine intake tube, a second valve coupled to the charger outlet tube and a core cooling tube, and a rotary engine body coupled to the engine intake tube and the core cooling tube. The device of the present invention has functions with cooling and/or pressurization, and manners of the engine intake and core heat dissipation intake can be used in the device to perform the core cooling by the serial, parallel or independent manner.