Film cooling hole structure of gas turbine moving blade

F - Mech Eng,Light,Heat,Weapons – 01 – D

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

F01D 5/18 (2006.01)

Patent

CA 2347888

A moving vane (20) is formed with cooling passages (22, 23) partitioned by a rib (51), wherein cooling air (41) flows in through the cooling passage (22) and into the cooling passage (23) as indicated by an arrow (41e). A stagnant region (53) is formed in the corner at the front end of the cooling passage (22) where there is no cooling hole (50); however, a flow (41i) goes out of the vane through a cooling hole (2), so that a flow of cooling air is formed in this region. Further, at the front end of a rib (51) there is formed a peel region (52) due to the peeling of the flow, but the cooling air (41h) flows out of the vane through a cooling hole (1) and a flow of cooling air is produced in this region.Further, a film cooling hole construction is also disclosed wherein in a gas turbine moving-vane having multi-stage turbulators (28) formed on the inner wall surface (60) of the cooling passage, the peeling of the cooling air taking place between the turbulators (28) is eliminated.

Cette invention concerne une aube mobile (20) avec passages de refroidissement (22, 23) séparés par une nervure (51). L'air de refroidissement (41) traverse le passage de refroidissement (22), puis pénètre dans le passage de refroidissement (23) comme indiqué par la flèche (41e). Dans le coin situé à l'avant du passage de refroidissement (22) se trouve une zone stagnante sans trou de refroidissement (50). Toutefois, un flux (41i) sort de l'aube par un trou de refroidissement (2) et va se former dans cette zone. Par ailleurs, à l'extrémité avant d'une nervure (51) se forme une région de pelage? ¿(52) due au pelage du débit, mais l'air de refroidissement (41h) quitte l'aube par un trou de refroidissement (1). Il y a donc un flux d'air de refroidissement dans cette zone. L'invention porte également sur une configuration à trous de refroidissement pour pellicule. Une aube mobile de turbine à gaz comporte des agitateurs pluri-étagés (28) sur la surface de la paroi intérieure de passages de refroidissement (60), ce qui a pour effet d'éliminer le pelage de l'air de refroidissement entre les agitateurs (28).

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Film cooling hole structure of gas turbine moving blade does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Film cooling hole structure of gas turbine moving blade, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Film cooling hole structure of gas turbine moving blade will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1919815

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.