Method for producing multilayer thin-walled bellows
    6.
    发明授权
    Method for producing multilayer thin-walled bellows 有权
    生产多层薄壁波纹管的方法

    公开(公告)号:US06202281B1

    公开(公告)日:2001-03-20

    申请号:US09391192

    申请日:1999-09-07

    IPC分类号: B23P1904

    摘要: A method includes the round billet skelping, several runs of each round billet drawing up to a given size, packing the drawn billets into a multilayer bank, corrugating the bank with the bellows formation as a result and its heat treatment. Each round billet is skelped of the age-hardenable nickel alloy containing components of the following group: niobium, aluminum, titanium, tungsten and molybdenum. Each round billet is drawn, heated up to the temperature of 1000-1130° C., held in the shielding medium at the above temperature, and cooled down, after that the above operations of drawing, heating, holding and cooling are repeated until the given size of each round billet is reached. The drawn round billets are packed into the multilayer bank and the bank is corrugated for forming the multilayer bellows. The heat treatment of the bellows is made by its heating up to the temperature of 1000-1130° C., holding in the shielding medium at this temperature until the strengthening phase is completely dissolved in the alloy and subsequent cooling down to the temperature of the phase transition termination in the alloy. A rarefied air medium or argon are used as the shielding medium.

    摘要翻译: 一种方法包括圆坯坯,每个圆坯坯的拉伸达到给定尺寸的几个运行,将拉制的坯料包装成多层板,结果使波纹管形成波纹,并进行热处理。 每个圆形坯料都是含有下列组分的成分的老化硬化镍合金:铌,铝,钛,钨和钼。 每个圆钢坯被拉伸,加热至1000-1130℃的温度,在上述温度下保持在屏蔽介质中,并冷却,之后重复上述拉伸,加热,保持和冷却操作直到 给定每个圆形钢坯的尺寸。 拉制的圆形坯料被包装在多层板中,并且波纹形成堤岸以形成多层波纹管。 波纹管的热处理通过加热至1000-1130℃,在该温度下保持在屏蔽介质中,直到强化相完全溶解在合金中,随后冷却至 合金中的相变终止。 使用稀薄的空气介质或氩气作为屏蔽介质。

    Liquid-propellant rocket engine with turbine gas afterburning
    7.
    发明授权
    Liquid-propellant rocket engine with turbine gas afterburning 有权
    液体推进剂火箭发动机与涡轮气体燃烧

    公开(公告)号:US06226980B1

    公开(公告)日:2001-05-08

    申请号:US09393435

    申请日:1999-09-10

    IPC分类号: F02K948

    CPC分类号: F02K9/48 F02K9/95

    摘要: The engine comprises a chamber, fuel and oxidizer booster pumps, a turbopump unit, a gas generator, an electrically driven thrust regulator, and a fuel throttle. A programmable starting and ignition system is introduced, which includes a fuel tank, connected to the thrust regulator, and a first ampoule with starting fuel, an output of which through a starting/cut-off valve is connected to fuel injectors of the gas generator. The aforesaid tank is also connected through a second ampoule to the starting fuel and by a jet to autonomous ignition injectors located in the space of the combustion chamber of the engine. An inclined Archimedian screw pump with a gas turbine as an actuator and an oxidizing gas as a working medium is used as an oxidizer booster pump. The gas is discharged after its use in a turbine into an outlet manifold of the booster pump. A heat exchanger, in which the gas used for rocket tank pressurization is heated, is mounted on a pipeline feeding the gas to the aforesaid gas turbine of the booster pump actuator.

    摘要翻译: 发动机包括室,燃料和氧化剂增压泵,涡轮泵单元,气体发生器,电动推力调节器和燃料油门。 引入了可编程起动和点火系统,其包括连接到推力调节器的燃料箱和具有起动燃料的第一安瓶,其通过起动/截止阀的输出连接到气体发生器的燃料喷射器 。 上述罐还通过第二安瓿连接到起动燃料,并且通过喷射器连接到位于发动机的燃烧室的空间中的自动点火喷射器。 使用具有作为致动器的燃气轮机和作为工作介质的氧化气体的倾斜的阿基米经螺杆泵作为氧化剂增压泵。 气体在涡轮机使用后被排放到增压泵的出口歧管中。 将用于火箭罐加压的气体加热的热交换器安装在将气体供给到增压泵致动器的上述燃气轮机的管道上。