IMPACT RESISTANCE ACOUSTIC TREATMENT

    公开(公告)号:CA2548719A1

    公开(公告)日:2007-01-13

    申请号:CA2548719

    申请日:2006-05-29

    Abstract: A liner assembly for a duct includes noise attenuation panel for dissipati ng sound energy generated within the duct. A damage resistant acoustic panel fo r installation in high velocity impact prone locations includes a plurality of openings for communicating noise signals to the noise attenuation panel. At lease som e of the openings includes a first diameter that extends a depth into the acoustic panel. The depth is no greater than the first diameter. A second portion extends the remainder of the thickness into the acoustic panel and includes a diameter greater tha n the first diameter. The increased area provided by the second diameter reduces restriction to the transmission of sound energy to the noise attenuation panel within an acoustic panel thickness required for protecting against foreign object damage.

    12.
    发明专利
    未知

    公开(公告)号:DE69923935T2

    公开(公告)日:2006-04-06

    申请号:DE69923935

    申请日:1999-12-22

    Abstract: A method for assembling a rotary machine 10 having a rotor 50 and rotor blades 54-66 and a stator 68 and stator values 92-104 is disclosed. During construction a lubricating oil is used to facilitate rotation of the rotor 50 within the stator 68, thereby allowing an interference fit to be provided between the rotor 50 and stator 68 which improves the efficiency of the engine during operation.

    14.
    发明专利
    未知

    公开(公告)号:DE69923935D1

    公开(公告)日:2005-04-07

    申请号:DE69923935

    申请日:1999-12-22

    Abstract: A method for assembling a rotary machine 10 having a rotor 50 and rotor blades 54-66 and a stator 68 and stator values 92-104 is disclosed. During construction a lubricating oil is used to facilitate rotation of the rotor 50 within the stator 68, thereby allowing an interference fit to be provided between the rotor 50 and stator 68 which improves the efficiency of the engine during operation.

Patent Agency Ranking