초록 ▼

A sound absorbing structure 38, 52 for a gas turbine engine 10 is disclosed. The sound absorbing structure 52 includes a wall element 54 and a casing 34 of the engine or nacelle 12. The casing is spaced from the wall element leaving a cavity 62 therebetween which is compartmentalized by partitions 6

A sound absorbing structure 38, 52 for a gas turbine engine 10 is disclosed. The sound absorbing structure 52 includes a wall element 54 and a casing 34 of the engine or nacelle 12. The casing is spaced from the wall element leaving a cavity 62 therebetween which is compartmentalized by partitions 64, 66. In one embodiment the partitions are attached to either the wall element or the casing element. In another embodiment the partitions are all attached to the wall element and spaced from the casing element or are all attached to the casing element and spaced from the wall element. In another embodiment the partitions are alternately spaced from the casing element and the wall element such that every other partition 64a is spaced from the wall and the remaining partitions 64b are spaced from the casing.

대표청구항 ▼

A stator structure for attenuating the noise of an axial flow gas turbine engine which extends circumferentially about an axis of symmetry of the engine and bounds an annular flow path for working medium gases, comprising: a casing element for confining the working medium gases to the working medium

A stator structure for attenuating the noise of an axial flow gas turbine engine which extends circumferentially about an axis of symmetry of the engine and bounds an annular flow path for working medium gases, comprising: a casing element for confining the working medium gases to the working medium flow path; a permeable wall element which is attached to the casing element and which is spaced radially from the casing element leaving a cavity therebetween bounded by the permeable wall element and by said casing element, the cavity being in fluid communication through the permeable wall element with the working medium flow path; and a plurality of partitions extending between the casing element and the wall element, at least one of which interrupts the circumferential continuity of the cavity, each partition being attached to at least one of said elements.