The combustion chamber in a rocket engine is a main critical part since this area creates the thrust needed to propel the rocket or spacecraft. In order to function properly, this chamber needs to endure extreme temperatures and pressures as well as intense vibrations.
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Launch Vehicle Engine Turbopump
Category
Special Sizes & Shapes
3 min
Description
A launch vehicle uses a turbopump that is driven by a hot gas turbine. Due to high levels of horsepower, RPM, flow rates and pressures in this system, specific design features, materials, and fabrication methods must be used to ensure high performance as well as space flight levels of reliability. For static sealing applications in this area, metal seals are used to prevent leakage of a fluid through a joint that has no relative motion of the mating surfaces.
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Sealed Carbon Dioxide (CO₂) Laser Systems
Category
Leakage Requirement
4 min
Description
Lasers are used in industrial production with high success. Some of the advancements in processing industry would not be possible without lasers. Carbon dioxide (CO2) lasers are among the oldest gas-based lasers. The long lasting legacy of carbon dioxide (CO2) has ensured that their costs remain extremely attractive compared to competing lasers. These lasers continue to command market share on account of their high, continuous power wave operations. They are known for their superior power conversion efficiency, and values in the range of 30% have been recorded. This makes them suitable for sensitive applications such as medicine, as well as demanding applications such as industrial cutting and welding.
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High Pressure Turbine Shrouds
Category
Critical Applications
3 min
Description
A high pressure turbine in a jet engine is one of the hottest parts in an airplane since this section is right after the combustion section and can reach extreme temperatures and pressures from the expanding airflow. Maintaining air flow control in this area is key to ensuring the efficiency of the engine because any type of leak is a waste of energy. To maintain a tight control on air flow in the turbine as well as limit vibration, metal shrouds are used, facing the tip of the turbine blades.
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Weather Satellite Calibration Instrument
Category
Leakage Requirement
3 min
Description
There are a variety of satellites, each with a specific function and supporting a specific aspect of our daily life. It can be used to enhance navigation, GPS or internet communication; to monitor tides; or to forecast weather. In order to link with each function, a satellite carries instrumentation that needs to operate for many years since maintenance is not possible on a satellite. Instrumentation also needs to be protected from the outside atmosphere, all of which are possibly detrimental, as well as internal corrosive fluids and substances that are carried by the satellite for its other functions (such as hypergolic fuels that power its thrusters).
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Power Generation Natural Gas Turbine
Category
Critical Applications
4 min
Description
A natural gas turbine is a type of internal combustion (IC) engine, converting the heat produced by natural gases into mechanical energy. This energy is then supplied to power generators that produce electricity for residential and industrial use. Gas turbines are used to power aircraft, trains, ships, electrical generators, pumps, gas compressors, and tanks. There are three significant manufacturers: General Electric of the US, Siemens of Germany and Mitsubishi Hitachi Power Systems of Japan.
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