Glossary
What are transonic airfoils, and what is the active clearance control? Check out our technical dictionary and find out more about engine technology terms – from active clearance control to velocity triangle.
HAE "Hell"
"Hard" anodizing
Hard chrome-plating
Hardening and tempering
Hardfacing
Heat exchanger
High-pressure compressor
High-pressure turbine
High-speed milling
High-temperature vacuum brazing
Hot isostatic pressing (HIP)
Hypersonic aircraft
High-pressure compressor
The compressor consists of a series of bladed disks that are arranged between stators and rotate at very high speeds. Large air volumes are ingested and compressed before they are passed on into the combustion chamber. To achieve pressure ratios of over 30 in present-day engines two different types of compressors are used: low-pressure compressors and high-pressure compressors. These compressors which rotate at different speeds are driven by their counterparts in the turbine via concentric shafts.
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