Method and a device for balancing pressure in a turbojet bearing enclosure
    1.
    发明授权
    Method and a device for balancing pressure in a turbojet bearing enclosure 有权
    方法和用于平衡涡轮喷气轴承外壳中的压力的​​装置

    公开(公告)号:US08714905B2

    公开(公告)日:2014-05-06

    申请号:US12934784

    申请日:2009-03-24

    IPC分类号: F04D27/02

    摘要: A pressure-balancing device for balancing pressure in at least one bearing enclosure of a turbojet, the enclosure including a mechanism feeding the bearing with lubricating liquid, an air intake, at least one sealing system placed between the stator and the rotor in front of and/or behind the bearing, a recovery mechanism recovering the lubricating liquid, and a removal mechanism removing the mixture of air and of traces of lubricating liquid towards a venting circuit. Downstream from the bearing enclosure and in the venting circuit, the balancing device includes a regulator system regulating the air removal flow rate, thereby enabling the flow rate to be variable as a function of the speed of the engine, to remain non-zero, and, at high speeds, to be lower than when the regulator system is not included.

    摘要翻译: 一种用于平衡涡轮喷气发动机的至少一个轴承罩中的压力的​​压力平衡装置,所述外壳包括将所述轴承与润滑液体一起供给的机构,进气口,置于所述定子和所述转子之前的至少一个密封系统, /或在轴承后面,回收润滑液的回收机构,以及去除空气和痕量润滑液体的混合物朝向排气回路的去除机构。 在轴承箱和通气回路下游,平衡装置包括调节排气流量的调节器系统,从而使流量可根据发动机的速度而变化,保持非零,以及 ,高速度,低于不包括调节器系统时。

    METHOD AND A DEVICE FOR BALANCING PRESSURE IN A TURBOJET BEARING ENCLOSURE
    2.
    发明申请
    METHOD AND A DEVICE FOR BALANCING PRESSURE IN A TURBOJET BEARING ENCLOSURE 有权
    用于在涡轮轴承外壳中平衡压力的方法和装置

    公开(公告)号:US20110188992A1

    公开(公告)日:2011-08-04

    申请号:US12934784

    申请日:2009-03-24

    IPC分类号: F01D3/04

    摘要: A pressure-balancing device for balancing pressure in at least one bearing enclosure of a turbojet, the enclosure including a mechanism feeding the bearing with lubricating liquid, an air intake, at least one sealing system placed between the stator and the rotor in front of and/or behind the bearing, a recovery mechanism recovering the lubricating liquid, and a removal mechanism removing the mixture of air and of traces of lubricating liquid towards a venting circuit. Downstream from the bearing enclosure and in the venting circuit, the balancing device includes a regulator system regulating the air removal flow rate, thereby enabling the flow rate to be variable as a function of the speed of the engine, to remain non-zero, and, at high speeds, to be lower than when the regulator system is not included.

    摘要翻译: 一种用于平衡涡轮喷气发动机的至少一个轴承罩中的压力的​​压力平衡装置,所述外壳包括将所述轴承与润滑液体一起供给的机构,进气口,置于所述定子和所述转子之前的至少一个密封系统, /或在轴承后面,回收润滑液的回收机构,以及去除空气和痕量润滑液体的混合物朝向排气回路的去除机构。 在轴承箱和通气回路下游,平衡装置包括调节排气流量的调节器系统,从而使流量可根据发动机的速度而变化,保持非零,以及 ,高速度,低于不包括调节器系统时。

    Device for regulating the flow rate of air feeding a turbine ventilation cavity of a turbomachine turbine section
    3.
    发明授权
    Device for regulating the flow rate of air feeding a turbine ventilation cavity of a turbomachine turbine section 有权
    用于调节供应涡轮机涡轮机部分的涡轮机通风空气的空气的流量的装置

    公开(公告)号:US08408864B2

    公开(公告)日:2013-04-02

    申请号:US12615798

    申请日:2009-11-10

    IPC分类号: F01B25/02

    摘要: A device for regulating the flow rate of air feeding a turbine ventilation cavity of a turbomachine turbine section is disclosed. The device includes at least one tubular duct opening into a take-off cavity and leading into a turbine ventilation cavity, the pressure inside the take-off cavity being higher than the pressure inside the turbine ventilation cavity; an air flow rate regulation valve disposed in the tubular duct, the valve being suitable for moving under the effect of the pressure difference between the take-off cavity and the turbine ventilation cavity; and a mechanical return device for holding the valve in a maximum closure position for the duct so long as the pressure difference between the take-off cavity and the turbine ventilation cavity remains below a predetermined threshold pressure.

    摘要翻译: 公开了一种用于调节供应涡轮机涡轮部分的涡轮机通风腔的空气流量的装置。 该装置包括至少一个管状管道,该管状管道通向起飞腔并引入涡轮机通风腔,该起飞腔内的压力高于涡轮机通风腔内的压力; 设置在管状管道中的空气流量调节阀,该阀适于在起飞腔和涡轮机通风腔之间的压力差的作用下移动; 以及用于将阀保持在用于管道的最大关闭位置中的机械返回装置,只要起飞腔和涡轮机通风腔之间的压力差保持在预定阈值压力以下即可。