steam jet ejector
- noun
- Specialized
- Early plant designs used two stages of steam jet ejectors.
Examples
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The first stage is a steam jet ejector.
Academic text (1994) -
The second is another steam jet ejector, a liquid ring vacuum pump, or a centrifugal compressor; the choice of the second stage is primarily a function of the amount of gas to be compressed.
Academic text (1994) -
The steam jet ejector was essential for maintaining vacuum in the surface condenser.
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In many industrial systems, the steam jet ejector effectively removes non-condensible gases.
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Engineers installed a steam jet ejector to enhance the efficiency of the cooling process.
Synonyms
A machine that uses high-pressure steam to make a vacuum by pulling in liquids or gases
Surface Forms
Morphology
The phrase is compositionally built: a 'steam jet ejector' literally denotes an ejector that uses a jet/stream of steam. A B1 learner who knows 'steam', 'jet' and 'ejector' can reasonably infer it is a device that expels or pumps using a steam jet, so the technical detail about vacuum creation is a predictable specialised extension.
Etymology
The device steam jet ejector gets its name from a simple image: a fast jet of steam that 'ejects' or throws out the air and gases. Imagine that strong steam spray blowing gases away to leave a space with low pressure, so the name explains why the device 'creates a vacuum' inside machines.