Noise reducing connection assembly for aircraft turbine housings
AssigneeAerospatiale Societe Nationale Industrielle
InventorsAlain Porte, Robert Andre
Life of this patent
Estimating the term…
Abstract
In an aircraft turbine, an assembly consisting of an air inlet structure, a air blower housing (22) and a connecting part (36), is fitted in such a way as to reduce noise including in the junction area between the structure and the housing. The connecting part (36) is fastened onto a rear section (20'), not provided with a honeycomb core, of the internal wall (20) of the air inlet structure. A honeycomb structure (44) is fitted inside the air blower housing (22). The space inside the rear section (20') houses a forward extension (44') of the honeycomb structure (44), or a different honeycomb structure.
Claims30
A noise reducing assembly for a turbine, said assembly comprising:
- an air inlet structure provided with an internal wall comprising an internal permeable skin, an impermeable external skin and a honeycomb core;
- an air blower housing provided with an external annular flange at the front end thereof and fitted on the inside with a first noise reducing honeycomb structure;
- and
- an annular connecting part fastened to said flange and to a rear section of the internal wall,
- wherein said rear section of the internal wall is not provided with a honeycomb core and is located substantially in line with said external skin, and wherein a second noise reducing honeycomb structure is housed on an internal side of said rear section of the internal wall.
A noise reducing assembly for turbines, said assembly comprising:
- an air inlet structure provided with an internal wall comprising an internal permeable skin, an impermeable external skin and a honeycomb core;
- an air blower housing provided with an external annular flange at the front end thereof and fitted on the inside with a first noise reducing honeycomb structure;
- and
- an annular connecting part fastened to said flange and to a rear section of the internal wall,
- wherein said rear section of the internal wall is not provided with a honeycomb core and is located substantially in line with said external skin, wherein a second noise reducing honeycomb structure is housed on an internal side of said rear section of the internal wall, and wherein said connecting part has an L-shaped cross-section forming two arms which are respectively fastened to said flange and to an inner surface of said rear section of the internal wall.
A noise reducing assembly for turbines, said assembly comprising:
- an air inlet structure provided with an internal wall comprising an internal permeable skin, an impermeable external skin and a honeycomb core;
- an air blower housing provided with an external annular flange at the front end thereof and fitted on the inside with a first noise reducing honeycomb structure;
- and
- an annular connecting part fastened to said flange and to a rear section of the internal wall,
- wherein said rear section of the internal wall is not provided with a honeycomb core and is located substantially in line with said external skin, wherein a second noise reducing honeycomb structure is housed on an internal side of said rear section of the internal wall, and wherein said connecting part has an L-shaped cross-section forming two arms which are respectively fastened to said flange and to an outer surface of said rear section of the internal wall.
Dependencies are inferred from the claim text.