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A compressor map is a chart which shows the performance of a turbomachinery compressor. This type of compressor is used in gas turbine engines, for supercharging reciprocating engines and for industrial processes, where it is known as a dynamic compressor. A map is created from compressor rig test results or predicted by a special computer program.
The following is a list of locomotives produced by GE Transportation Systems, a subsidiary of Wabtec.All were/are built at Fort Worth, Texas or Erie, Pennsylvania, in the United States.
Compared to the CFM56, the LEAP makes greater use of composite materials, has a second-generation Twin Annular Pre-mixing Swirler (TAPS II) combustor, and a bypass ratio around 10–11:1. The high-pressure (HP) compressor operates at up to a 22:1 compression ratio, which is roughly double the corresponding value for the CFM56's HP compressor. [7]
Just as horsepower and candlepower were intuitive units of measure for people living through the transition from horse to steam power [3] and from flame-based to electric lighting, so was the ton of refrigeration an intuitive unit of measure during a technological change, as the ice trade gradually included growing percentages of artificial ice ...
Rolls-Royce based the ten-stage high-pressure compressor on an eight-stage run in the RB401 in the mid 1970's followed by a nine-stage run in the RJ.500. The V.2500 would use ten stages, with the first four with variable stators, giving a pressure ratio of 20:1. [ 4 ]
Principal view of the pumping action of a twin-screw pump with a six-lobe female screw and a five-lobe male screw. A compressor (as opposed to a pump) would be shaped the same way, except that the shape of the lobes would change along the length of the screw, so that the volume of the trapped pockets would get squeezed smaller as they get closer to the exhaust port.
The J85-21 design replaces AM 355 chromium nickel molybdenum stainless steel alloy, used by previous J85 models for compressor rotors and blades, with a titanium alloy. Its inlet diameter was increased from 17.7 in (45 cm) to 20.8 in (53 cm), and it included an added stage ahead of the base 8-stage compressor for a total of 9 stages.
Ultratech, Inc. is an international technology company based in San Jose, California, that supplies equipment to global semiconductor fabrication plants, and also makes tools for nanotechnology applications by optical networking, data storage and automotive and display industries.
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