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    • 9. 发明公开
    • PROPELLER BLADE AND METHOD
    • PROPERERBLATT UND VERFAHREN
    • EP2910465A1
    • 2015-08-26
    • EP15155351.8
    • 2015-02-17
    • Hamilton Sundstrand Corporation
    • Nagle, David P.
    • B64C11/26B29D99/00B29C70/86B29L31/08B29C70/22
    • F01D5/14B29D99/0025B29L2031/087B64C11/26Y10T29/49336
    • A propeller blade (10) includes an inner spar structure (16) surrounding an inner spar foam core (14). Also included is a leading edge foam structure (20) disposed proximate a leading edge of the inner spar structure (16). Further included is a trailing edge foam structure (22) disposed proximate a trailing edge of the inner spar structure (16). Yet further included is an outer spar structure (28) surrounding the inner spar structure (16), the leading edge foam structure (20) and the trailing edge foam structure (22). Also included is a blade shell (30), a leading edge foam core (32) located between the outer spar structure (28) and the blade shell (30), and a trailing edge foam core (34) located between the outer spar structure (28) and the blade shell (30).
    • 螺旋桨叶片(10)包括围绕内部翼梁泡沫芯(14)的内部翼梁结构(16)。 还包括设置在内部翼梁结构(16)的前缘附近的前缘泡沫结构(20)。 还包括设置在内部翼梁结构(16)的后缘附近的后缘泡沫结构(22)。 还包括围绕内部翼梁结构(16),前缘泡沫结构(20)和后缘泡沫结构(22)的外部翼梁结构(28)。 还包括叶片壳(30),位于外翼梁结构(28)和叶片壳(30)之间的前缘泡沫芯(32)和位于外翼梁结构(28)之间的后缘泡沫芯(34) (28)和叶片壳(30)。