pressure ratio

pressure ratio

Ratio of the critical pressure of a nozzle to the admission pressure of the nozzle (equals 0.53 for gases).

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Industry/Domain: Automotive
Category: Vehicle equipment
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Related terms

compressor pressure ratio

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In a turbocharger system, the ratio between the absolute pressure at the compressor outlet and the compressor inlet.

engine pressure ratio (EPR)

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The ratio of turbine discharge pressure divided by compressor inlet pressure, which is used as an indication of the amount of thrust being developed by a turbine engine.

compressor pressure ratio

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The ratio of compressor discharge pressure to compressor inlet pressure.

engine pressure ratio (EPR)

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The ratio of turbine discharge pressure divided by compressor inlet pressure that is used as an indication of the amount of thrust being developed by a turbine engine.

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