• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Axial flow machine, in particular axial turbine, with a stator-side housing (1), which defines a flow channel (2), with a rotor-side impeller (3) carrying blades (4), and with a stator-side guide (5), which adjustable guide vanes (6 ), wherein radially outer pins (6a) of the guide vanes (6) are mounted in a guide blade carrier (7), wherein on the pins (6a) of the guide vanes (6) engage linkage (8) coupled to a collar (9) are, and wherein on the adjusting ring (9) an actuating device (10) engages, via which the adjusting ring (9) and the adjusting ring (9), the guide vanes (6) are rotatable. The actuating device (10) has at least one actuating rod (11) whose longitudinal axis and whose actuating direction extending in the direction of the longitudinal axis extend in the circumferential direction or tangentially to the circumferential direction of the adjusting ring (9).
    公开号:CH714608A2
    申请号:CH00011/19
    申请日:2019-01-08
    公开日:2019-07-31
    发明作者:Spengler Sebastian；Bartenschlager Gabriel；Kalchschmid Markus；Krammer Maria
    申请人:Man Energy Solutions Se；
    IPC主号:
    专利说明:

    Description: The invention relates to an axial flow machine, in particular an axial turbine, according to the preamble of claim 1.
    An axial flow machine according to the preamble of claim 1 is known from DE 10 016 745 B4. The axial flow machine known from this prior art has a stator-side housing which defines a flow channel for a fluid. The axial flow machine also has a rotor-side impeller that carries blades that are positioned in the flow channel. Furthermore, the axial flow machine has a stator-side guide device which has adjustable guide vanes. Radially outer pins of the guide vanes of the guide apparatus are mounted in a guide vane carrier. Linkage levers engage the radially outer pins of the guide vane. The articulation levers are coupled to an adjusting ring, an actuating device acting on the adjusting ring, via which the adjusting ring can be displaced, so as to displace or adjust the guide vanes of the guide apparatus by displacing the adjusting ring.
    From DE 10 016 745 B4 it is known that the actuating device has an actuating rod which extends in the axial direction and is guided in a recess in the housing. This recess in the housing, through which the actuating rod of the actuating device extends, is designed in an arc shape in order to enable a corresponding adjustment of the adjusting ring in the circumferential direction. Because of such an arcuate recess, it is difficult to seal the passage area of the actuating rod through the housing.
    There is a need for a new type of axial flow machine, in which the passage area of the actuating device can be better sealed by the housing, which acts on the adjusting ring.
    Proceeding from this, the present invention has for its object to provide a novel axial flow machine. This object is achieved by an axial flow machine according to claim 1.
    According to the invention, the actuating device has at least one actuating rod, the longitudinal axis and the actuating direction extending in the direction of the longitudinal axis extending in the circumferential direction or tangential to the circumferential direction of the adjusting ring.
    The respective actuating rod exclusively executes a one-dimensional, linear actuating movement.
    With the present invention, it is proposed that the or each actuating rod of the actuating device extends in the circumferential direction or tangentially to the circumferential direction of the adjusting ring through the housing. To displace the adjusting ring, the actuating rod only executes a one-dimensional movement, namely lifting movement, in the direction of the longitudinal axis of the respective actuating rod. The respective actuating rod can therefore advantageously be sealed off from the housing.
    According to an advantageous development, the actuating device has two actuating rods, which attack two actuating rods preferably offset by 180 ° on the adjusting ring, and wherein a first actuating rods acts as a push rod and a second actuating rods as a pull rod. This enables a particularly advantageous displacement of the adjusting ring.
    According to an advantageous development, the respective actuating rod is guided linearly displaceably in a guide, a guide housing of the guide extending through a recess in the housing and the actuating rod through the guide housing. This enables a particularly advantageous displacement of the respective actuating rod and sealing of the passage area of the actuating device by the housing.
    Preferably, a projection of the respective guide housing rests on an outer wall of the housing of the axial flow machine and forms a sealing surface which extends perpendicular to the longitudinal axis of the respective actuating rod in order to seal the respective guide housing with respect to the housing. The respective guide housing preferably accommodates a seal which seals the respective actuating rod in the respective guide housing. These features serve the particularly preferred sealing of the guide with respect to the housing of the axial flow machine and the respective actuating rod with respect to the guide housing of the guide and thus with respect to the housing of the axial flow machine.
    [0012] Preferred developments of the invention result from the dependent claims and the following description. Exemplary embodiments of the invention are explained in more detail with reference to the drawing, without being restricted to this. It shows:
    1 shows a partial axial section through an axial flow machine according to the invention;
    2 shows a partial radial section through an axial flow machine according to the invention in the cutting direction II-II; and
    Fig. 3 shows the detail III.
    [0013] The invention relates to an axial flow machine, in particular an axial turbine.
    CH 714 608 A2 [0014] FIGS. 1 and 2 show in detail two different cross sections through an axial flow machine according to the invention, which is designed as an axial turbine. FIG. 3 shows detail III of FIG. 2.
    The axial flow machine has a stator-side housing 1. From the stator-side housing 1, a turbine inflow housing 1 a and a turbine outflow housing 1 b are shown. The housing 1 defines a flow channel 2 for a fluid.
    The axial turbine also has a rotor-side impeller 3, which carries blades 4. The blades 4 of the impeller 3 are flowed against by the fluid which flows through the flow channel 2.
    The axial turbine also has a stator-side guide device 5. The stator-side guide device 5 has guide vanes 6 which are positioned in the flow channel 2. The guide vanes 6 are adjustable, namely rotatable.
    Radially outer pins 6a of the guide vanes 6 are guided in a guide vane carrier 7. Linkage levers 8, which are also referred to as adjusting levers, act on those sections of the pins 6a which protrude radially on the outside relative to the guide vane carrier 7.
    The actuating levers 8 engage an adjusting ring 9, which can be rotated in the circumferential direction in order to rotate the articulation levers 8 and, via the articulation levers 8, the guide vanes 6 of the guide apparatus 5 by means of their rotational movement.
    In Fig. 2 only a few guide vanes 6 are shown. In addition to the guide blades 6 shown, further guide blades are positioned in the circumferential direction in the flow channel 2.
    In order to shift the collar 9 in the circumferential direction, an actuating device 10 engages on the collar 9. The actuating device 10 comprises at least one actuating rod 11, the longitudinal axis of which and the actuating direction extending in the direction of the longitudinal axis, which is visualized in FIG. 2 by a double arrow 12, extends in the circumferential direction or tangential to the circumferential direction of the adjusting ring 9.
    Preferably, the actuating device 10 comprises two such actuating rods 11, which preferably act offset by 180 ° on the collar 9, in which case a first actuating rod 11 acts as a push rod and a second actuating rod 11 as a pull rod, depending on the direction in which Adjustment ring 9 is to be shifted, that is to say depending on whether the adjustment ring 9 is to be turned clockwise or counterclockwise in FIG. 2.
    The respective actuating rod 11 of the actuating device 10 executes exclusively a one-dimensional, linear actuating movement and extends for this purpose through a recess in the housing 1 which is preferably designed as a circular bore. As can be seen in FIG. 3, the respective actuating rod 11 is in a guide 12 linearly guided, the guide 12 having a guide housing 13 and a guide element 17 accommodated in the guide housing 13. The guide element 17 can be a sliding block, for example.
    The guide housing 13 extends through the recess in the housing 1, the actuating rod 11 extends through the guide 12.
    The guide housing 13 has a shoulder 14 which bears against the housing 11 of the axial flow machine, namely on an outer wall of the housing 1, a sealing surface 15 being formed between the outer wall of the housing 1 and the projection 14, which is perpendicular to the longitudinal direction of the respective operating rod 11 extends.
    In addition to this sealing of the guide housing 13 with respect to the housing 1, a seal 16 is provided which serves to seal the actuating rod 11 with respect to the guide housing 13, this seal 16 being accommodated in the guide housing 13 together with the guide element 17.
    In the axial flow machine according to the invention, the adjusting movement of the adjusting ring 9, via which the guide vanes 6 are ultimately displaced, can be initiated via actuating rods 11 which are round in cross section and which are guided in recesses of the housing 1 which are round in cross section and only have a one-dimensional, translational Carry out lifting movement. As a result, the penetration area of the actuating rods 11 can be sealed simply and reliably with respect to the housing 1 of the axial flow machine. This reduces the risk of leakage.
    Reference symbol list [0028]
    casing
    1a inflow housing
    1b outlet housing
    flow channel
    Wheel
    blade
    CH 714 608 A2
    diffuser
    vane
    6a spigot
    guide vane
    Feedback lever
    collar
    actuator
    actuating rod
    guide
    guide housing
    attack
    sealing surface
    poetry
    guide element
    权利要求:
    Claims (8)
    [1]
    claims
    1. Axial flow machine, in particular an axial turbine, with a stator-side housing (1), which defines a flow channel (2), with a rotor-side impeller (3), which carries rotor blades (4), with a stator-side guide device (5), which has adjustable guide blades ( 6), the radially outer pins (6a) of the guide vanes (6) being mounted in a guide vane carrier (7), with articulation levers (8) acting on the pins (6a) of the guide vanes (6), which are actuated by an adjusting ring (9) are coupled, and wherein an actuating device (10) engages on the adjusting ring (9), via which the adjusting ring (9) and the adjusting ring (9) the guide vanes (6) can be rotated, characterized in that the actuating device (10) at least has an actuating rod (11), the longitudinal axis of which and the actuating direction extending in the direction of the longitudinal axis extend in the circumferential direction or tangential to the circumferential direction of the adjusting ring (9).
    [2]
    2. Axial flow machine according to claim 1, characterized in that the actuating device (10) has two actuating rods (11).
    [3]
    3. Axial flow machine according to claim 2, characterized in that the two actuating rods (11) offset by 180 ° act on the adjusting ring (9), a first actuating rod (11) acting as a push rod and a second actuating rod (11) as a pull rod.
    [4]
    4. Axial flow machine according to one of claims 1 to 3, characterized in that the respective actuating rod (11) executes exclusively a one-dimensional, linear actuating movement.
    [5]
    5. Axial flow machine according to one of claims 1 to 4, characterized in that the respective actuating rod (11) extends through a recess in the housing (1).
    [6]
    6. Axial flow machine according to one of claims 1 to 5, characterized in that the respective actuating rod (11) in a guide (12) is guided linearly displaceable, wherein a guide housing (13) of the guide (12) through a recess in the housing ( 1) and the actuating rod (11) extends through the guide housing (13).
    [7]
    7. axial flow machine according to claim 6, characterized in that a projection (14) of the respective guide housing (13) abuts an outer wall of the housing (1) and forms a sealing surface (15) which is perpendicular to the longitudinal axis of the respective actuating rod (11) extends to seal the respective guide housing (13) from the housing (1).
    [8]
    8. axial flow machine according to claim 6 or 7, characterized in that the respective guide housing (13) receives a seal (17) which seals the respective actuating rod (11) in the respective guide housing (13).
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    同族专利:
    公开号 | 公开日
    JP2019132273A|2019-08-08|
    KR20190090335A|2019-08-01|
    DE102018101527A1|2019-07-25|
    CN110067605A|2019-07-30|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    JPS5862303A|1981-10-09|1983-04-13|Hitachi Ltd|Stator blade control device of axial flow type fluid machine|
    DE3711224C2|1987-04-03|1990-08-09|Man Gutehoffnungshuette Ag, 4200 Oberhausen, De|
    JP3600438B2|1998-05-22|2004-12-15|三菱重工業株式会社|Variable turbine rotation device for gas turbine|
    DE10016745B4|2000-04-04|2005-05-19|Man B & W Diesel Ag|Axial flow machine with a nozzle comprising a number of adjustable guide vanes|
    EP2006494A1|2007-06-20|2008-12-24|ABB Turbo Systems AG|Drive for a pre-twist guide device|
    JP5055208B2|2008-06-20|2012-10-24|三菱重工業株式会社|Variable stator vane driving method and apparatus for axial flow compressor|
    WO2014055100A1|2012-10-01|2014-04-10|United Technologies Corporation|Low compressor having variable vanes|
    JP6615127B2|2014-06-20|2019-12-04|ボーグワーナーインコーポレーテッド|Turbocharger with adjustable vanes|
    CN106458142B|2014-07-03|2019-05-07|Tk控股公司|Actuator housings sealing mechanism|
    DE112015003201T5|2014-07-10|2017-03-23|Mitsubishi Hitachi Power Systems, Ltd.|MAINTENANCE PROCEDURE FOR VARIABLE LEAD WINGING DEVICE AND VARIABLE LEAD WINGING DEVICE|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE102018101527.5A|DE102018101527A1|2018-01-24|2018-01-24|axial flow|
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