labyrinth seal


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labyrinth seal

[′lab·ə‚rinth ‚sēl]
(engineering)
A minimum-leakage seal that offers resistance to fluid flow while providing radial or axial clearance; a labyrinth of circumferential knives or touch points provides for successive expansion of the fluid being piped; used for gas pipes, steam engines, and turbines.

labyrinth seal

labyrinth sealclick for a larger image
A type of air and/or oil seal used around the main-shaft bearing in a gas turbine engine. The seal consists of a series of rotating blades that almost contact the seal land (the base of the seal). A small amount of air flows between the seal and the land and prevents oil from flowing past the seal. A gas seal between fixed and moving parts that compose a series of chambers, even though their sides do not quite touch, reduces the escape of gas to near zero.
References in periodicals archive ?
With complex software SolidWorks--CosmosFloWorks 2009 and the three-dimensional parametric Delhi, a labyrinth seal offers a technique to improve its geometry.
The oil kept in the groove supplies oil to the clearance and also the refrigerant gas-oil labyrinth seal effect.
A special labyrinth seal prevents contamination between the chuck body and the ring.
They also incorporate innovative, patent pending Labyrinth seal ring protection for extended life.
Advanced FEM (finite element method) techniques were applied to ensure that the new labyrinth seal design and thicker enclosure meet rigorous safety demands and provide sufficient robustness.
The company's Radiamatic RCD labyrinth seal, an advanced -design that seals against oil in main gears, generators and similar systems, is setting new standards for design.
Introduced in 2005, the Wide Five Performance Racing Hub Kit contains Timken tapered roller bearings, a high-performance labyrinth seal and a tube of performance racing grease.
and Checking of Inner labyrinth seal, if necessary fixing of graphite rope in inner labyrinth seal area at underbowl of mill 2A, 2B & 2C during OH 2015
Limited Tenders are invited for Supply Of Labyrinth Seal.
Tenders are invited for Supply of Labyrinth seal for BHEL make coal mill XRP-903 of 2X250 MW unit no 10 and 11 of STPS, Sarni
The metal labyrinth seal broke apart, which should be restored now, Avazov said.