摘要:
An air/fuel pre-mixer for a gas turbine combustor and a method of pre-mixing air and fuel for a combustor are provided. In one embodiment the pre-mixer includes a first annular premix fuel manifold disposed upstream of the combustor and an annular member concentric with the first premix fuel manifold. Together the annular premix fuel manifold and the annular member define a first venturi shaped air/fuel pre-mix volume between them that has a throat. At or upstream from the throat, the first premix fuel manifold has a plurality of pores whereby the fuel is injected from the first premix fuel manifold to mix with air in the first pre-mix volume. In another embodiment, the annular member is an outer wall, whereas in yet another embodiment, the annular member is a second premix fuel manifold.
摘要:
A formed sheet heat exchanger is provided for exchanging heat between fluids is provided. The apparatus includes flow divider sheets that are positioned in a stacked configuration and extend in a longitudinal direction so that adjacent pairs of the sheets define flow passages therebetween for receiving first and second fluids. Each of the sheets is nonuniform in the longitudinal direction, having a manifold portion and a corrugated portion. The corrugated portions of each adjacent pair of sheets define a plurality of fluid channels therebetween that are connected to the portion of the flow passage defined between the manifold portions. The fluid channels are configured to receive the first or second fluids and transfer thermal energy therebetween through the flow divider sheets.
摘要:
Apparatus and methods are provided for measuring the potential for mutual coupling in an integrated circuit package of any type or configuration using a network analyzer in conjunction with a coaxial test probe. Simple, low-cost test fixturing and methods of testing may be used to measure the parasitic capacitance and inductance of one or more I/O leads of an integrated circuit package, the measured parasitic capacitances and inductances providing an indication of the susceptibility of the integrated circuit package to mutual coupling between electrical leads of the package or between an electrical lead and other components of the integrated circuit package.
摘要:
The present invention is directed toward a coolant system and method for fabricating a coolant system for actively cooling high performance components utilizing a plurality of feed channels that receive coolant from a manifold through coolant feed tubes and supply coolant to a liner that contains a plurality of coolant channels, each feed channel intersecting and distributing coolant to multiple coolant channels, wherein each coolant channel receives coolant from multiple feed channels.
摘要:
A formed sheet heat exchanger is provided for exchanging heat between fluids is provided. The apparatus includes flow divider sheets that are positioned in a stacked configuration and extend in a longitudinal direction so that adjacent pairs of the sheets define flow passages therebetween for receiving first and second fluids. Each of the sheets is nonuniform in the longitudinal direction, having a manifold portion and a corrugated portion. The corrugated portions of each adjacent pair of sheets define a plurality of fluid channels therebetween that are connected to the portion of the flow passage defined between the manifold portions. The fluid channels are configured to receive the first or second fluids and transfer thermal energy therebetween through the flow divider sheets.
摘要:
The present embodiment relates to a catalytic combustor for reducing the pollutant emissions of combustion. The catalytic combustor described herein employs a novel heat exchange system for rapidly and economically bringing the combustor to a temperature wherein catalytic combustion may occur with minimal production of toxic products.
摘要:
RF power device module (500) having an RF power device chip (206) which integrates an RF power device (208) with at least one of DC detector circuits (201, 202), RF detector circuits (203, 204), and thermal detector circuit (235) which cooperate with optical emitter/detector components (213) that supports a bi-directional optical link (210) made through free space with diagnostic processing and control circuits implemented on a separate chip (214) mounted within the same enclosure (205). The bi-directional optical link (210) enables interpretation of detection signals (227) received from the RF power device chip (206) and the feed back of default or other management and control signals (229) sent back to the RF power device chip (206) in response to the detected and analyzed conditions. The RF power device module (500) can be used in RF power transistors, such used in a base station, or mobile or portable transmitters, used in telecommunications, or in RF power amplifiers and instrumentation amplifiers in general.
摘要:
The composition of matter includes an alloy formed by vaporization of either magnesium or iron in continuation with one or more metals. This results in an array of alloy members each making up the alloy and extending from a base to an upper end. A fluid at least partially impregnates the spaces between the alloy members to the surrounding areas. A dissolving cap can either be included or deleted to prevent the fluid from diffusing until the cap is dissolved.
摘要:
The invention relates to novel sensors of the catalytic gas-sensing thin-film metal surface type wherein the surface has an inorganic protective membrane coating formed by a pulsed dc sputtering technique. Preferably, the thin-film metal surface is a Pd, Pt, Ni, Au, Ag or an alloy thereof. The inorganic membrane is of the formula MaObNcCd where M is a metal or semiconductor, O is oxygen, N is nitrogen, and C is carbon and a, b, c, and d can each independently range from zero to seven with the proviso that at least two of a, b, c, and d are non-zero. The sensor design is particularly useful for various hydrogen sensing applications. The invention also includes their method of manufacture.
摘要:
The present invention comprises a system and methods for managing janitorial, security, lighting, and temporary labor services provided to commercial, industrial, institutional, and retail facilities. The present invention comprises a system and methods for managing facility services though a mobile field inspection system. The mobile field inspection system provides a wireless network that enables a facility manager to supervise the performance of services by other employees at a particular facility. The present invention further comprises a system and methods for performing a series of quality inspections of a facility to ensure that services are performed satisfactorily. Additionally, the present invention provides a constant, proactive communication between the facilities contractor/manager and the customer purchasing the services. Further, the present system comprises a system and methods for performing services and inspections using systematically positioned barcodes for efficient tracking and reporting purposes.