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1. 发明公开

EP0268566A2 Base bleed unit 失效
标题翻译：基础-Ausströmeinheit。
公开(公告)号：EP0268566A2
公开(公告)日：1988-05-25
申请号：EP87850268.1
申请日：1987-09-03
申请人： Andersson, Kurt Göran , Gunners, Nils-Erik , Nilsson, Yngve Lennart
发明人： Andersson, Kurt Göran , Gunners, Nils-Erik , Nilsson, Yngve Lennart
IPC分类号： F42B13/267
CPC分类号： F42B10/40
摘要： A base bleed unit arranged to increase the range of fire or to reduce the time of flight for shells and projectiles includes a housing (1) surrounding a fuel charge (6) and associated igniter (4), extending from the rear portion of a projectile body (2) and including at least one outlet nozzle (5, 5ʹ, 5ʺ) for combustion gases, which by means of a mass flow, and possibly combustion adjacent to the base plane, reduce existing base drag. According to an embodiment of the invention, the housing (1) comprises a caseshaped member 1 attachable against a projectile body (2), having at least one igniter (4) arranged adjacent to an internal plane of a restricting wall surface at the housing (1), located in an opposed relationship to the portion of the housing (1) attachable against a projectile body (2). The combustion flame of the igniter (4) is hereby maintained directed towards the fuel charge (6) and away from the outlet nozzle/nozzles (5, 5ʹ, 5ʺ). Advantageously, a number of outlet nozzles (5, 5ʹ, 5ʺ) are used, arranged spaced in an annular relationship to each other, and preferably inclined towards the outer peripheral portion of the restricting wall surface. A number of igniters (4) are advantageously used, located in recesses or blind holes taken up by the inside plane of the restricting wall surface. It is further advantageous to arrange the open portion of each igniter (4) partly covered by a covering means, thus accomplishing a reduced outlet area. According to a second embodiment, the housing (1) may also be formed by attachment of a bottom member to a projectile body (2) having a rearwardly open projectile extension, said bottom member including one or a number of igniters (4).
摘要翻译：布置成增加火焰范围或减少壳和射弹的飞行时间的基本放气单元包括围绕燃料喷射器（6）的围绕着喷射器的后部的相关联的点火器（4）的壳体（1）主体（2）并且包括用于燃烧气体的至少一个出口喷嘴（5,5'，5“），其通过质量流动和可能邻近基本平面的燃烧而减少现有的底部阻力。根据本发明的实施例，壳体（1）包括可抵靠射弹体（2）附接的壳体构件1，其具有邻近于壳体处的限制壁表面的内平面设置的至少一个点火器（4）位于与可抵靠射弹体（2）的壳体（1）的部分相对的关系中。因此，点火器（4）的燃烧火焰被保持指向燃料装料（6）并且远离出口喷嘴/喷嘴（5,5'，5“）。有利地，使用多个出口喷嘴（5,5'，5“），它们以彼此间隔开的环形关系布置，优选地朝向限制壁表面的外周部分倾斜。有利地使用多个点火器（4），位于由限制壁表面的内平面所牵引的凹陷或盲孔中。进一步有利的是将每个点火器（4）的开口部分部分地被覆盖装置覆盖，从而实现减小的出口面积。根据第二实施例，壳体（1）还可以通过将底部构件附接到具有向后开放的射出延伸部的射弹体（2）而形成，所述底部构件包括一个或多个点火器（4）。

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