Book 3 - Air Sealing Flashcards Preview

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Flashcards in Book 3 - Air Sealing Deck (4)
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1
Q

___________ air is used to seal the bearing housings, so preventing leakage of oil into the engine main casings or into the compressor inlet

A

COMPRESSOR air is used to seal the bearing housings, so preventing leakage of oil into the engine main casings or into the compressor inlet

2
Q

air pressurised oil seals reduce the working clearance between rotating and static members to a ________

A

air pressurised oil seals reduce the working clearance between rotating and static members to a MINIMUM

3
Q

oil seals can take the form of:

  • labyrinth seals
  • ring seals
  • carbon brush seals
A

oil seals can take the form of:

  • labyrinth seals
  • ring seals
  • carbon brush seals
4
Q

to maintain maintain the pressure difference between two internal engine sections that are subjected to air pressure differences, a _____-air seal is used

A

to maintain maintain the pressure difference between two internal engine sections that are subjected to air pressure differences, a MULTI-air seal is used