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특허 상세정보

Noise attenuation panel

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) E04B-001/82   
미국특허분류(USC) 181/292; 181/293
출원번호 US-0886664 (2001-06-20)
우선권정보 GB-20000016149 (2000-06-30)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Fulbright & Jaworski L.L.P.
인용정보 피인용 횟수 : 45  인용 특허 : 5
초록

A noise attenuation panel used to attenuate noise in aircraft engines includes a cellular core and a facing sheet formed with an array of holes. The holes are laser drilled to provide: (i) hole size variation over the facing sheet; (ii) non-circular hole cross section; (iii) polygonal hole cross section; (iv) hole locations not contiguous with walls of the cellular core; and (v) inclined holes passing through the facing sheet in a direction inclined to the normal to the facing sheet.

대표
청구항

A noise attenuation panel used to attenuate noise in aircraft engines includes a cellular core and a facing sheet formed with an array of holes. The holes are laser drilled to provide: (i) hole size variation over the facing sheet; (ii) non-circular hole cross section; (iii) polygonal hole cross section; (iv) hole locations not contiguous with walls of the cellular core; and (v) inclined holes passing through the facing sheet in a direction inclined to the normal to the facing sheet. her end remote from the leaf spring, to an actuator for tensioning the ...

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