Jet propulsion device and fuel supply method

    公开(公告)号:US09771897B2

    公开(公告)日:2017-09-26

    申请号:US14350980

    申请日:2012-10-08

    申请人: SNECMA

    摘要: A reaction propulsion device in which a first feed circuit for feeding a main thruster with a first propellant includes a branch connection downstream from a pump of a first turbopump, which branch connection passes through a first regenerative heat exchanger and a turbine of a first turbopump, and in which a second feed circuit for feeding the main thruster with a second propellant includes, downstream from a pump of a second turbopump, a branch-off passing through a second regenerative heat exchanger and a turbine of the second turbopump. At least one secondary thruster is connected downstream from the turbines of the first and second turbopumps.

    A PROPELLANT FEED CIRCUIT AND A COOLING METHOD
    6.
    发明申请
    A PROPELLANT FEED CIRCUIT AND A COOLING METHOD 审中-公开
    推进式电路和冷却方法

    公开(公告)号:US20150337763A1

    公开(公告)日:2015-11-26

    申请号:US14760190

    申请日:2014-01-10

    申请人: SNECMA

    IPC分类号: F02K9/46

    摘要: The invention relates to the aerospace field, and in particular to the field of vehicles propelled by rocket engines. In particular, the invention relates to a feed circuit (6) for feeding a rocket engine (2) at least with a first liquid propellant, the feed circuit including at least one first heat exchanger (18) suitable for being connected to a cooling circuit (17) for cooling at least one heat source in order to cool said heat source by transferring heat to the first propellant, and, in addition, downstream from said first heat exchanger, a branch passing through a second heat exchanger.

    摘要翻译: 本发明涉及航空航天领域,特别涉及由火箭发动机推进的车辆领域。 特别地,本发明涉及用于至少用第一液体推进剂进给火箭发动机(2)的进料回路(6),所述进料回路包括至少一个第一热交换器(18),该第一热交换器适于连接到冷却回路 (17),用于冷却至少一个热源,以便通过将热量传递到第一推进剂来冷却所述热源,并且另外在所述第一热交换器的下游,通过第二热交换器的分支。

    Thruster comprising a plurality of rocket motors
    7.
    发明授权
    Thruster comprising a plurality of rocket motors 有权
    推进器包括多个火箭发动机

    公开(公告)号:US08950172B2

    公开(公告)日:2015-02-10

    申请号:US13003371

    申请日:2009-07-10

    CPC分类号: F02K9/60 F02K7/18 F02K9/64

    摘要: The jet (40) has an air-fuel combustion chamber (42) and a plurality of rocket engines (11) arranged upstream from the combustion chamber (42), each rocket engine having its own combustion chamber with the wall thereof being cooled by lateral injection of fuel through said wall.

    摘要翻译: 喷射器(40)具有空气燃料燃烧室(42)和布置在燃烧室(42)上游的多个火箭发动机(11),每个火箭发动机具有其自身的燃烧室,其壁的侧壁被冷却 通过所述墙壁喷射燃料。

    REVERSIBLE FLOW DISCHARGE ORIFICE
    9.
    发明申请
    REVERSIBLE FLOW DISCHARGE ORIFICE 有权
    可逆流量排放

    公开(公告)号:US20130125527A1

    公开(公告)日:2013-05-23

    申请号:US13300775

    申请日:2011-11-21

    IPC分类号: F02K9/97

    摘要: A rocket engine fluid-flow system includes a pump fluidly interconnecting a fluid source to a combustion chamber. A nozzle is in fluid communication with the combustion chamber and includes coolant tubes fluidly arranged between the pump and the combustion chamber. An orifice has a throat and is fluidly arranged between the pump and the coolant tubes. The orifice has entrance and exit ramps arranged on either side of the throat. The exit ramp has an exit ramp surface with a divergent angle that is less than a right angle. The entrance ramp provides a smooth approach to the orifice throat. In one example, the exit ramp includes an exit ramp surface having a divergent angle of 20-60°. The exit ramp radius is less than twice the throat radius in one example.

    摘要翻译: 火箭发动机流体流动系统包括将流体源流体地连接到燃烧室的泵。 喷嘴与燃烧室流体连通,并且包括流体地布置在泵和燃烧室之间的冷却剂管。 孔具有喉部并且流体地布置在泵和冷却剂管之间。 孔口具有设置在喉部两侧的入口和出口斜面。 出口斜坡具有出口斜面,其具有小于直角的发散角。 入口斜坡提供了孔口喉咙平滑的方法。 在一个示例中,出口斜坡包括具有20-60°的发散角的出口斜面。 在一个示例中,出口斜坡半径小于喉部半径的两倍。

    Method for cooling rocket engines
    10.
    发明授权
    Method for cooling rocket engines 有权
    冷却火箭发动机的方法

    公开(公告)号:US08341933B2

    公开(公告)日:2013-01-01

    申请号:US12846728

    申请日:2010-07-29

    IPC分类号: B63H11/00

    CPC分类号: F02K9/64

    摘要: A method of cooling a rocket engine that includes removal of a gaseous propellant from a tank containing liquid propellant, thereby cooling the propellant in the tank, cooling a rocket engine with a coolant, thereby heating the coolant, and transferring heat from the heated coolant into the propellant in the tank, thereby heating the propellant in the tank and maintaining the pressure in the tank. In certain embodiments, the coolant is injected into the rocket engine after transferring heat from the rocket engine to the propellant in the tank.

    摘要翻译: 一种冷却火箭发动机的方法,包括从包含液体推进剂的罐中取出气体推进剂,从而冷却罐中的推进剂,用冷却剂冷却火箭发动机,从而加热冷却剂,并将热量从加热的冷却剂传递到 坦克中的推进剂,从而加热罐中的推进剂并维持罐中的压力。 在某些实施例中,在将热量从火箭发动机传递到罐中的推进剂之后,将冷却剂注入到火箭发动机中。