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Multi-layered acoustic liner 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • E04B-001/99
출원번호 US-0457183 (1974-04-02)
발명자 / 주소
  • Schindler Guenter M. (Palos Verdes CA)
출원인 / 주소
  • McDonnell Douglas Corporation (Long Beach CA 02)
인용정보 피인용 횟수 : 99  인용 특허 : 0

초록 ▼

This invention concerns a multi-layered acoustic liner which breaks up high amplitude sound and shock waves into several waves of the same type but smaller amplitudes, converting some acoustic energy into heat and shifting part of the acoustic energy to a higher frequency level to achieve better abs

대표청구항 ▼

A multi-layered acoustic liner with perforated sheets between layers of cellular cavity material and a perforated face sheet, each of said sheets having a perforated area of over half its total area for shifting part of the acoustic energy to a higher frequency level to achieve better absorption by

이 특허를 인용한 특허 (99)

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