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Glite Dictionary
🛢️ Liquid level sensor ⚙️ Gas mover part 🔄 Mover or shifter
displacer

displacer

9.1
A part in a Stirling engine that moves gas between hot and cold areas
  • noun
  • /dɪsˈpleɪsər/
  • Specialized
translation icon : desplazador
  • In a Stirling engine, the displacer transfers gas between the hot and cold sections to maintain efficiency.

Examples

  • A free-piston engine has only two moving parts: the power and displacer pistons.

    Academic text (1994)

  • The displacer in the engine is crucial for regulating the temperature of the gas during operation.

  • Engineers designed the new Stirling engine with an improved displacer for better thermal management.

Surface Forms

displacer singular
displacers plural

Morphology

displacer = displace (semi-transparent) = dis + place + er

The morphological formation 'displace' + '-er' is regular, but the Stirling-engine sense is technical and may not be directly inferred by general learners.

Etymology

Displacer comes from dis- 'away' + place 'position' and -er 'one who moves'. In a Stirling engine this part simply moves the gas between hot and cold areas without making power, so a displacer is the piece that shifts gas from one place to another.