Daniel Marquis Sep 30, 2011:

Précision supplémentaire... ...les paliers sont toujours lubrifiés par l'huile, qui n'est donc jamais vidangée mais évacuée puis renouvelée aussitôt, sauf en cas d'arrêt pour entretien.

Thierry Darlis (asker) Sep 30, 2011:

Merci beaucoup

Daniel Marquis Sep 30, 2011:

À Thierry Donc il s'agit bien d'une pression d'évacuation d'huile de palier (BEARING). Dans ce genre d'équipement, on trouve plutôt des paliers que des roulements (en général évidemment).

Thierry Darlis (asker) Sep 30, 2011:

here is the context :
"Used seal oil inside the generator will drain to seal oil drain enlargements (one on the CE and one on the TE) where hydrogen bubbles can come to the surface of the oil, and then to a common float trap valve which reduces the oil pressure from generator pressure down to bearing drain pressure and prevents hydrogen from escaping with the oil"

Tony M Sep 30, 2011:

Context? In order for people to be able to give you the best possible help, Thierry, it is probably going to be helpful to give a little more of the surrounding context from your document.
If this term appears in a sentence, then please give that sentence in full, so we can see how the term is actually being used (here, for example, 'bearing' might be a noun or a verb); it may also be helpful to give the preceding and/or following sentences, if those are in any way connected. If for some reason this isn't part of a sentence (a heading, or a drawing label, for example), then it may help to give other surrounding information.