JPH0328098U

JPH0328098U -

Info

Publication number: JPH0328098U
Application number: JP8860789U
Authority: JP
Priority date: 1989-07-28
Filing date: 1989-07-28
Publication date: 1991-03-20
Anticipated expiration: 2004-07-28
Also published as: JP2523614Y2

Description

[Brief explanation of drawings]

第１図は各吸気消音器、排気消音器の配置を示
し、Ｂ−７４７がセツトされた状態の平面図、第
２図はＢ−７４７の主翼エンジン試運転状態の平
面図、第３図はＤＣ−１０，Ｌ−１０１１などの
センターエンジンをもつ航空機の試運転状態の平
面図、第４図は第２図の状態の一部切欠側面図、
第５図は第３図の状態における側面図、第６図は
排気消音器の別例を示す要部の断面図、第７図、
および、第８図は胴体、および、パイロンなどと
部材のシール構造を示す要部の断面図、第９図は
消音装置ユニツトの突き合わせ部のシール構造を
示す断面図、第１０図は吸気消音器の防音装置の
正面図、第１１図は同上別実施例の正面図、第１
２図は排気消音器の排気ダクト昇降調節機構部の
側面図、第１３図は吸気口、および、排気口を横
向きとした状態の縦断側面図、第１４図は吸気口
、および、排気口を開閉構造とした要部の断面図
、第１５図はセンターエンジンの吸気消音器の別
例を示し、かつ、各消音器の配置を示す平面図、
第１６図は同上Ｂ−７４７の主翼エンジン試運転
状態の平面図、第１７図は同上ＤＣ−１０，Ｌ−
１０１１などのセンターエンジンをもつ航空機の
試運転状態の平面図、第１８図は吸気消音器の後
部が主翼の前端縁にシール構造を介して接続され
る実施例で、各吸気消音器、排気消音器の配置を
示し、Ｂ−７４７がセツトされた状態の平面図、
第１９図は同上主翼エンジン試運転状態の平面図
、第２０図、および、第２１図は同上要部の縦断
側面図、第２２図は第１９図の状態の正面図、第
２３図は同上一部切欠正面図である。１……航空機本体、３……主翼エンジン、５…
…吸気消音器、５ａ……防音装置、６……レール
、２１……排気消音器、２２ａ，２２ｂ……レー
ル、２３……排気ダクト、３１……センターエン
ジン、３２……航空機本体、３３……門構、３６
……吸気消音器、３９……防音装置、４０……レ
ール、４２……排気消音器、４３……排気ダクト
、４６……レール。 Figure 1 shows the arrangement of each intake silencer and exhaust silencer, and is a plan view of the B-747 in a set state, Figure 2 is a plan view of the B-747's main wing engine test run, and Figure 3 is a DC A plan view of an aircraft with a center engine such as -10, L-1011 in a test run state, Figure 4 is a partially cutaway side view of the state shown in Figure 2,
Fig. 5 is a side view in the state shown in Fig. 3, Fig. 6 is a sectional view of the main parts showing another example of the exhaust silencer, Fig. 7,
FIG. 8 is a cross-sectional view of the main parts showing the seal structure of the fuselage, pylon, etc. and other members, FIG. 9 is a cross-sectional view showing the seal structure of the butt part of the silencer unit, and FIG. 10 is the intake silencer. FIG. 11 is a front view of another embodiment of the same as above, and FIG.
Figure 2 is a side view of the exhaust duct elevation adjustment mechanism of the exhaust muffler, Figure 13 is a vertical cross-sectional side view with the intake port and exhaust port oriented horizontally, and Figure 14 is a side view of the intake port and exhaust port. FIG. 15 is a cross-sectional view of the main parts with an opening/closing structure; FIG. 15 is a plan view showing another example of the intake silencer for the center engine; and a plan view showing the arrangement of each silencer;
Figure 16 is a plan view of the main wing engine test run state of the B-747, and Figure 17 is the DC-10, L-
FIG. 18 is a plan view of a trial run state of an aircraft with a center engine such as the No. 1011, and shows an example in which the rear part of the intake silencer is connected to the front edge of the main wing via a seal structure, and each intake silencer and exhaust silencer A plan view showing the arrangement of the B-747, with the B-747 set.
Figure 19 is a plan view of the same main wing engine as shown in the test run state, Figures 20 and 21 are vertical sectional side views of the main parts of the same, Figure 22 is a front view of the same as in Figure 19, and Figure 23 is the same as in the same state as in Figure 19. FIG. 1... Aircraft body, 3... Main wing engine, 5...
...Intake silencer, 5a...Soundproofing device, 6...Rail, 21...Exhaust silencer, 22a, 22b...Rail, 23...Exhaust duct, 31...Center engine, 32...Aircraft body, 33... …Gateway, 36
...Intake silencer, 39...Soundproofing device, 40...Rail, 42...Exhaust silencer, 43...Exhaust duct, 46...Rail.

Claims

[Claims for Utility Model Registration] An intake muffler and an exhaust muffler disposed close to the end faces of the inlet side and exhaust side of the main wing engine, and the main wing engine astride between these two silencers. In the engine enclosure type aircraft ground trial noise reduction device, which consists of a soundproofing device that surrounds the center engine, and in which both of the above silencers can be moved to the sides of the aircraft, an intake silencer, an exhaust silencer, and a soundproofing device that spans between these silencers and surrounds a part of the fuselage of the aircraft body including the center engine and the entire tail fin. Provide a soundproofing device for the center engine, and at least
An engine enclosure type aircraft ground test silencer, characterized in that the exhaust silencer is retractable to the outside of the aircraft.