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公开(公告)号：EP0556078A1
公开(公告)日：1993-08-18
申请号：EP93400177.7
申请日：1993-01-26
申请人： MESSIER BUGATTI
发明人： Veaux, Jacques , Derrien, Michel
CPC分类号： B64C25/001 , B64C25/60 , B64C2025/008 , F16F9/06
摘要： L'invention concerne un amortisseur de jambe de train d'atterrissage du type comportant un caisson et une tige coulissante, avec un fond délimitant une chambre inférieure de fluide hydraulique qui communique par un diaphragme avec une chambre supérieure de fluide hydraulique adjacente à une chambre de gaz sous pression ménagée en partie haute du caisson.
Conformément à l'invention, la tige coulissante 102 réalisée sous forme télescopique, avec une tige extérieure 131 et une tige intérieure 132 qui est en appui direct contre une cloison intermédiaire 112 qui constitue le fond précité, lorsque l'amortisseur est détendu ou sous charge statique ; l'amortisseur comporte en outre un actionneur linéaire 150.1 logé dans la tige intérieure 132, et dont l'enclenchement permet d'obtenir un rehaussement du train d'atterrissage lorsque l'aéronef est à l'arrêt ou en déplacement lent au sol. Un double compas 124, 127 est en outre prévu pour la reprise des efforts de torsion structuraux.-
公开(公告)号：EP0160718B1
公开(公告)日：1991-02-06
申请号：EP84105063.6
申请日：1984-05-04
发明人： Gebhard, David F.
CPC分类号： B64C25/001 , B64C25/60 , B64C2025/008
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113.发明授权Amortisseur-vérin, contre-fiche le comportant, et train d'atterrissage équipé d'une telle contre-fiche 失效带有防尘盖的接地板，以及装有这样一个起落架的飞机起落架
公开(公告)号：EP0275735B1
公开(公告)日：1990-12-19
申请号：EP87402799.8
申请日：1987-12-10
CPC分类号： F16F9/096 , B64C25/60 , B64C2025/008 , B64C2025/325 , F16F7/12 , F16F9/348
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公开(公告)号：EP0341021A2
公开(公告)日：1989-11-08
申请号：EP89304400.8
申请日：1989-05-02
申请人： DOWTY ROTOL LIMITED
发明人： Hatton, John James
摘要： A hydraulic shock absorber (1) suitable for use with an aircraft landing gear which includes:
- a first casing member (2) telescopically and sealingly engaged with a second casing member (3), said second casing member having a first section (16) of reduced diameter in comparison to a second section (17);
and - an oil reservoir (4) defined by the first (2) and second (3) casing members, which is divided into two distinct volumes (4a, 4c) by a one way restrictor means (5) attached to the second casing member (3);
Further, the volume of the oil reservoir (4) defined by the first casing member (2) and the first section of the second casing member (16) is further divided into two sections (4a, 4b) by a two way restrictor means (7).
In operation the one way restrictor means (5) acts to restrict the flow of oil from the volume of the oil reservoir (4c) defined by the first casing member (2) and the second section (17) of the second casing member (3) to the volume (4b) of the reservoir (4), defined by the first casing member (2) and the first section (16) of the second casing member (3).摘要翻译： 一种适合与飞机起落架一起使用的液压减震器（1），其包括： - 与第二壳体构件（3）可伸缩地密封接合的第一壳体构件（2），所述第二壳体构件具有第一部分（16） 与第二部分（17）相比具有减小的直径; 以及由所述第一（2）和第二（3）壳体构件限定的储油器（4），其通过附接到所述第二壳体构件的单向限制器装置（5）被分成两个不同的容积（4a，4c） （3）; 此外，由第一壳体构件（2）和第二壳体构件（16）的第一部分限定的储油室（4）的体积通过双向限制装置进一步分成两部分（4a，4b） 7）。 在操作中，单向限制器装置（5）用于限制来自由第一壳体构件（2）和第二壳体构件（3）的第二部分（17）限定的储油器（4c）的容积的油流量 ）到由第一壳体构件（2）和第二壳体构件（3）的第一部分（16）限定的储存器（4）的容积（4b）。
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公开(公告)号：EP0252825A1
公开(公告)日：1988-01-13
申请号：EP87401567.0
申请日：1987-07-03
发明人： Veaux, Jacques , Derrien, Michel
摘要： La présente invention concerne les amortisseurs.
L'amortisseur comprend une tige (2) coulissant dans un cylindre (3) par l'intermédiaire d'un piston (4) pour déterminer au moins deux chambres (5,7) à volume variable, une des deux chambres comprenant des premiers moyens élastiques (29) à une pression déterminée, l'autre chambre comprenant des deuxièmes moyens élastiques (22) à une seconde pression déterminée, ces deuxièmes moyens élastiques (22) étant apte à être déplacés en block en translation par une chambre de vérin (17).-
公开(公告)号：EP0160718A1
公开(公告)日：1985-11-13
申请号：EP84105063.6
申请日：1984-05-04
发明人： Gebhard, David F.
CPC分类号： B64C25/001 , B64C25/60 , B64C2025/008
摘要： A telescoping landing gear shock strut set (3, 4, 5) which can provide both the main landing gear and auxiliary landing gear function, and which is affixed to and extendable from an aircraft, is restrained in an unenergized, compressed condition. A high pressure gas charge is then provided between the extendible element (12) of the strut and the element affixed (11) to the aircraft. Early in the takeoff run, the charge gas in the forward strut is released so as to jump the nose and rotate the aircraft to a high: angle of attact appropriate for takeoff. Subsequent to this rotation, but before the conventional takeoff speed is reached, the charge gas in the main strut is released to impart a vertical velocity to the entire aircraft (1), thus jumping into the air.
Both the forward strut and main struts incorporate a hydraulic flow bypass function, so that the landing shock absorption function does not compromise the aforesaid energy release, the struts also incorporate values to discharge enough residual gas immediately at the end of the jump stroke so-than the landing energy absorption mode is not compromised. Following the main gear jump, the continuing horizontal acceleration provided by the propulsion engines (10), and continuously weakening vertical acceleration comprising gravity diminished by the wing aerodynamic lift, which is increasing with speed results in an initially upward aircraft trajectory which does not return to earth. A takeoff run with the aforesaid jump action is considerably shorter that the takeoff run without the jump function. Although the jump takeoff speed is less than the conventional takeoff speed, and there would be a lift shortage in a straight flight path, the centrifugal acceleration produced by the bending downward of trajectory, which is initially inclined upward, compensates for this temporary lift shortage.-
117.发明授权Composants munis d'un dispositif d'absorption d'énergie par déformation plastique et/ou de limitation d'effort, et trains d'atterrissage d'aérodynes équipés de tels composants 失效具有通过塑性变形和/或限制限制的能量吸收装置的部件以及配备这些部件的飞机接地齿轮
公开(公告)号：EP0072323B1
公开(公告)日：1985-11-06
申请号：EP82401479.9
申请日：1982-08-05
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公开(公告)号：EP0129161A1
公开(公告)日：1984-12-27
申请号：EP84106545.1
申请日：1984-06-07
申请人： HR TEXTRON INC.
IPC分类号： B64C25/58
CPC分类号： B64C25/60
摘要： Shock absorbing struts (10) for use on aircraft landing gear which include a pair offluid containing chambers (14,16) defined by a pair of telescoping cylinders. Fluid flows from one of the chambers to anotherthrough a metering orifice (24) proportional to the differential in pressure generated by impact loads created upon landing or taxiing of the aircraft. Upon the differential pressure exceeding a predetermined threshold level an additional flow path (22, 26) positioned in parallel to the metering orifice (24) is opened by an amount proportional to the amount of differential pressure in excess of the threshold to thereby maintain a substantially constant load on the landing gear irrespective of impact loads imparted thereto.
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公开(公告)号：EP0115435A2
公开(公告)日：1984-08-08
申请号：EP84300503.4
申请日：1984-01-26
IPC分类号： B64C25/58
CPC分类号： B64C25/58
摘要： The undercarriage includes a pair of pivotally interconnected undercarriage legs 32, 33, the latter of which carries a ground wheel 15. A strut 14 extends between lugs 31, 34 on the legs. The strut may either be frangible or fluid operable and normally inhibits relative pivotal movement of the legs. However, if a load in excess of a desired load is applied to the undercarriage, the strut will operate to permit such relative movement. At the limit of such relative movement the lowest point L of the wheel 15 will be below the lowest point P of the undercarriage.
摘要翻译： 起落架包括一对可枢转地互连的底架腿部32,33，其后者承载研磨轮15.支柱14在腿部上的凸耳31,34之间延伸。 支柱可以是易碎的或流体可操作的，并且通常抑制腿的相对枢转运动。 然而，如果超过所需负载的负载施加到起落架上，支柱将起作用以允许这种相对运动。 在这种相对运动的极限情况下，车轮15的最低点L将低于起落架的最低点P.
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公开(公告)号：EP0047209B1
公开(公告)日：1984-04-11
申请号：EP81401346.2
申请日：1981-08-27
发明人： Masclet, Jean , Veaux, Jacques
CPC分类号： B64C25/60 , B60G17/0152 , B60G2202/15 , B60G2300/16 , B60G2400/204 , B60G2400/90 , B60G2500/10 , F16F9/50
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