Arrangement of gas turbine engine comprising aerodynamic vanes and struts located in the same plane and an intermediate casing
First Claim
1. Arrangement of a gas turbine engine comprising:
- a first, a second, a third and a fourth circular casing of decreasing and concentric diameters, the first casing and second casing forming the boundary of a bypass engine air channel and the third casing and fourth casing forming a primary air channel, the bypass engine air channel being occupied by fixed gas guide vanes outer parts of fixed support vanes extending from the first to the fourth casing, the outer parts being prolonged by support arms between the third and fourth casings and by intermediate sleeves between the second and third casings, the guide and support vanes alternate by groups on a single circumference and the intermediate sleeves are oblique and branched from the support arms to the outer parts of the support vanes.
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Accused Products
Abstract
The arrangement of a gas turbine engine suitable for high bypass ratio aircraft engines in which gases circulate in a primary air channel (7) and a secondary channel (8) concentric to said primary air channel, is characterized in that structural vanes (22) connecting the channel delimitation casings (2, 10, 14, 5) with each other, alternate with aerodynamic vanes (20) for guiding the gases on a common circumference of the engine bypass air channel (8), and in that the structural channels branch out between the two channels. The resulting advantages are simplicity of construction associated with a reduction in the space required for housing the channels and good resistance without notable increase of the total mass.
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Citations
21 Claims
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1. Arrangement of a gas turbine engine comprising:
a first, a second, a third and a fourth circular casing of decreasing and concentric diameters, the first casing and second casing forming the boundary of a bypass engine air channel and the third casing and fourth casing forming a primary air channel, the bypass engine air channel being occupied by fixed gas guide vanes outer parts of fixed support vanes extending from the first to the fourth casing, the outer parts being prolonged by support arms between the third and fourth casings and by intermediate sleeves between the second and third casings, the guide and support vanes alternate by groups on a single circumference and the intermediate sleeves are oblique and branched from the support arms to the outer parts of the support vanes. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
Specification