JP2000249629A - Detecting method for abnormality of rotation system of two-spindle gas turbine engine - Google Patents
Detecting method for abnormality of rotation system of two-spindle gas turbine engineInfo
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- JP2000249629A JP2000249629A JP5245699A JP5245699A JP2000249629A JP 2000249629 A JP2000249629 A JP 2000249629A JP 5245699 A JP5245699 A JP 5245699A JP 5245699 A JP5245699 A JP 5245699A JP 2000249629 A JP2000249629 A JP 2000249629A
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- Prior art keywords
- pressure
- low
- rotation
- abnormality
- gas turbine
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Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、２軸ガスタービン
エンジンの回転系の異常検出方法に関する。The present invention relates to a method for detecting an abnormality in a rotating system of a two-shaft gas turbine engine.
【０００２】[0002]
【従来の技術】図２に示すように、一般にガスタービン
エンジンは、高圧圧縮機２、燃焼器３及び高圧タービン
４，等を備え、高圧タービン４により高圧圧縮機２を駆
動し、圧縮機２により圧縮された空気により燃焼器３で
燃料を燃焼させ、燃焼器３により生成された高温の燃焼
ガスにより高圧タービン４を駆動するようになってい
る。また、２軸のガスタービンエンジン（図の例ではタ
ーボファンエンジン）の場合、更に、高圧タービン４の
排気ガスにより駆動される低圧タービン５と、この低圧
タービン５により駆動されるファン１を備えている。以
下、高圧タービン４により駆動される回転系を「高圧回
転系」、低圧タービン５で駆動される回転系を「低圧回
転系」と呼ぶ。2. Description of the Related Art As shown in FIG. 2, a gas turbine engine generally includes a high-pressure compressor 2, a combustor 3, a high-pressure turbine 4, and the like. The fuel is burned in the combustor 3 by the air compressed by the combustor 3, and the high-pressure turbine 4 is driven by the high-temperature combustion gas generated by the combustor 3. In the case of a two-shaft gas turbine engine (in the example shown, a turbofan engine), a low-pressure turbine 5 driven by exhaust gas of the high-pressure turbine 4 and a fan 1 driven by the low-pressure turbine 5 are further provided. I have. Hereinafter, the rotating system driven by the high-pressure turbine 4 is referred to as “high-pressure rotating system”, and the rotating system driven by the low-pressure turbine 5 is referred to as “low-pressure rotating system”.
【０００３】図３は、アナログ信号の計測回路（Ａ）と
周波数信号の計測回路（Ｂ）の模式図である。図３
（Ａ）に示す計測回路は、例えば熱電対による温度計測
回路であり、信号源に位置する熱電対６で発生した起電
力を増幅器７で増幅して出力する。なお、この図で６
ａ，６ｂは熱電対を構成する金属線（又は補償導線）、
７ａ，７ｂは抵抗であり、金属線６ａには抵抗７ａを介
して定電圧ＶＣＣが付加され、金属線６ｂは抵抗７ｂを
介してＧＮＤに接地されている。この場合、出力信号
は、直流電圧Ｖとなる。FIG. 3 is a schematic diagram of an analog signal measurement circuit (A) and a frequency signal measurement circuit (B). FIG.
The measurement circuit shown in (A) is a temperature measurement circuit using a thermocouple, for example, and amplifies an electromotive force generated by a thermocouple 6 located at a signal source by an amplifier 7 and outputs the result. In this figure, 6
a and 6b are metal wires (or compensation wires) constituting a thermocouple,
Reference numerals 7a and 7b denote resistors. A constant voltage VCC is applied to the metal line 6a via the resistor 7a, and the metal line 6b is grounded to GND via the resistor 7b. In this case, the output signal is the DC voltage V.
【０００４】図３（Ｂ）に示す計測回路は、図２に示し
た回転系の回転速度計測に用いられる。この図で、８は
回転系に取り付けられた回転磁性体、８ａは磁石、９ａ
はコイルであり、回転磁性体８の回転によりコイル９ａ
内の磁界が周期的に変化し、これを増幅器９で増幅して
出力する。この場合、出力信号は交流電圧Ｖとなる。こ
の交流電圧をデジタルカウンタ等で処理して、回転系の
回転速度を計測することができる。なお、この方式の回
転センサはマグネティクピックアップ型回転数センサと
呼ばれる。The measuring circuit shown in FIG. 3B is used for measuring the rotation speed of the rotating system shown in FIG. In this figure, 8 is a rotating magnetic body attached to a rotating system, 8a is a magnet, 9a
Is a coil, and a coil 9a is formed by rotation of the rotating magnetic body 8.
The magnetic field inside changes periodically, and this is amplified by the amplifier 9 and output. In this case, the output signal is the AC voltage V. The AC voltage can be processed by a digital counter or the like to measure the rotation speed of the rotating system. Note that this type of rotation sensor is called a magnetic pickup type rotation speed sensor.
【０００５】[0005]
【発明が解決しようとする課題】上述した図３（Ａ）の
計測回路では、出力信号が直流電圧Ｖであり、回路が正
常な場合には、出力電圧はある所定の範囲を示し、熱電
対６や金属線又は補償導線７ａ，７ｂが断線した場合に
は、出力電圧は過大な値を示したり、或いはＯとなる。
従って、出力電圧の検出のみで、計測回路の異常を容易
に検出することができる。In the measuring circuit shown in FIG. 3A, the output signal is a DC voltage V, and when the circuit is normal, the output voltage indicates a predetermined range, and When the wire 6, the metal wire or the compensating wires 7a, 7b are broken, the output voltage shows an excessive value or becomes O.
Therefore, the abnormality of the measurement circuit can be easily detected only by detecting the output voltage.
【０００６】これに対して、図３（Ｂ）の計測回路で
は、出力信号は交流電圧であり、これを処理した出力は
回転速度或いは回転速度に対応した周波数である。この
場合、回転系が停止すると出力信号（或いは回転速度、
周波数）は０と検出されるが、断線等が生じた場合でも
同様に出力信号が０となる。従って、かかるマグネティ
ックピックアップ型センサでは、停止状態とリード線等
の断線が区別できない問題点があった。従って、従来の
２軸ガスタービンエンジンの回転数センサでは、その異
常を検出するために、計測機器側に特殊な電気回路と定
電流源を必要とし、ハードウェアが複雑かつ高価とな
り、信頼性が乏しい問題点があった。On the other hand, in the measurement circuit shown in FIG. 3B, the output signal is an AC voltage, and the output obtained by processing the AC voltage is a rotation speed or a frequency corresponding to the rotation speed. In this case, when the rotation system stops, an output signal (or rotation speed,
Frequency) is detected as 0, but the output signal is also 0 even when a disconnection or the like occurs. Therefore, in such a magnetic pickup type sensor, there is a problem that the stop state and the disconnection of the lead wire or the like cannot be distinguished. Therefore, in the conventional rotation speed sensor of the two-shaft gas turbine engine, a special electric circuit and a constant current source are required on the measuring device side to detect the abnormality, the hardware becomes complicated and expensive, and the reliability is low. There were few problems.
【０００７】本発明は、かかる問題点を解決するために
創案されたものである。すなわち、本発明の目的は、２
軸ガスタービンエンジンの高圧回転系と低圧回転系の異
常を、複雑な機器を用いることなく、確実に検出するこ
とができる異常検出方法を提供することにある。The present invention has been made to solve such a problem. That is, the object of the present invention is to
An object of the present invention is to provide an abnormality detection method capable of reliably detecting an abnormality in a high-pressure rotation system and a low-pressure rotation system of a shaft gas turbine engine without using complicated equipment.
【０００８】[0008]
【課題を解決するための手段】本発明の発明者等は、２
軸ガスタービンエンジンの低圧回転系と高圧回転系は、
機械的には直接連結されていないが、実際の運転状態で
は常に連動しており、これを異常検出の１種のクライテ
リア（判断基準）として用いることができることに着眼
した。本発明はかかる新規の知見に基づくものである。Means for Solving the Problems The present inventors have proposed that
The low-pressure rotating system and high-pressure rotating system of the shaft gas turbine engine
Although it is not mechanically directly connected, it is always linked in an actual operation state, and it has been noted that this can be used as one type of criteria (judgment standard) for abnormality detection. The present invention is based on such a new finding.
【０００９】すなわち、本発明によれば、２軸ガスター
ビンエンジンの低圧回転系の回転速度αと高圧回転系の
回転速度βとの関係β＝ｆ（α）を予め設定し、計測さ
れた低圧回転系または高圧回転系の回転速度が前記関係
から大きく外れる場合に、その回転系を異常と検出す
る、２軸ガスタービンエンジンの回転系の異常検出方法
が提供される。That is, according to the present invention, the relationship β = f (α) between the rotation speed α of the low-pressure rotation system and the rotation speed β of the high-pressure rotation system of the two-shaft gas turbine engine is set in advance, and the measured low pressure Provided is a method for detecting an abnormality in a rotating system of a two-shaft gas turbine engine, wherein when the rotating speed of a rotating system or a high-pressure rotating system greatly deviates from the above relationship, the rotating system is detected as abnormal.
【００１０】上記本発明の方法によれば、２軸ガスター
ビンエンジンの低圧回転系と高圧回転系が、運転状態で
常に連動しているので、その関係をβ＝ｆ（α）として
予め設定しておけば、この関係から大きく外れる回転系
を異常と検出するだけで、複雑な機器を用いることな
く、ロータの固着やセンサ故障、リード線断線等の異常
を確実に検出することができる。According to the method of the present invention, since the low-pressure rotating system and the high-pressure rotating system of the two-shaft gas turbine engine are always linked in the operating state, the relationship is preset as β = f (α). If this is done, it is possible to reliably detect an abnormality such as sticking of the rotor, sensor failure, disconnection of the lead wire, or the like without using complicated equipment simply by detecting a rotation system that largely deviates from this relationship.
【００１１】本発明の好ましい実施形態によれば、前記
関係に対して所定のしきい値Δα，Δβを設定し、一方
の回転系を基準として他方の回転系を見たときに、その
数値が前記しきい値Δα，Δβを超える遅い数値を示し
たときは、その他方の回転系を異常と検出する。この方
法により、しきい値を設定するだけで、簡単なアルゴリ
ズムで回転系の異常を確実に検出することができる。According to a preferred embodiment of the present invention, predetermined threshold values Δα and Δβ are set for the above-mentioned relationship, and when one of the rotation systems is viewed with reference to the other rotation system, the numerical value is determined. When a slow numerical value exceeding the threshold values Δα, Δβ is indicated, the other rotation system is detected as abnormal. With this method, it is possible to reliably detect an abnormality in the rotating system with a simple algorithm simply by setting a threshold value.
【００１２】また、本発明によれば、低圧系の回転開始
時に高圧系回転速度がβ0 であり、低圧系回転速度がα
0 のときに高圧系はそれ以上高速で回転している特性の
２軸ガスタービンエンジンにおいて、Ａ．低圧系回転速
度がα0 以上であり、かつ高圧系回転速度がカウント不
能ならば、高圧系の異常と検出し、Ｂ．高圧系回転速度
がβ0 以上であり、かつ低圧系回転速度がカウント不能
ならば、低圧系の異常と検出する。According to the present invention, when the low-pressure system starts rotating, the high-pressure system rotation speed is β 0 and the low-pressure system rotation speed is α
When the pressure is 0 , the high pressure system is rotating at a higher speed. If the low-pressure system rotation speed is α 0 or more and the high-pressure system rotation speed cannot be counted, it is detected that the high-pressure system is abnormal, and B. And a high-voltage rotating speed is beta 0 or more, and the low-voltage rotational speed if the count impossible, to detect the low-pressure system abnormality.
【００１３】この方法によれば、Ａ．低圧系回転速度が
α0 以上のときに高圧系はそれ以上高速で回転している
ので、それにもかかわらず、高圧系回転速度がカウント
不能ならば、高圧系の異常として検出できる。また、
Ｂ．高圧系回転速度がβ0 以上のときに低圧系は回転を
開始して高速回転しているので、それにもかかわらず、
低圧系回転速度がカウント不能ならば、低圧系の異常と
して検出できる。According to this method, A. Since the high-pressure system is rotating at a higher speed when the low-pressure system rotation speed is equal to or higher than α 0 , if the high-pressure system rotation speed cannot be counted, it can be detected as an abnormality in the high-pressure system. Also,
B. When the high-pressure system rotation speed is β 0 or more, the low-pressure system starts rotating and rotates at high speed.
If the low-pressure system rotation speed cannot be counted, it can be detected as a low-pressure system abnormality.
【００１４】[0014]
【発明の実施の形態】以下、本発明の好ましい実施形態
を図面を参照して説明する。図１は、本発明の異常検出
方法を模式的に示す図である。図１（Ａ）は、スタータ
（始動補助装置）によるエンジン始動時のＮＬ（低圧
系）とＮＨ（高圧系）の回転数（回転速度）の傾向を示
している。なお、この図において、横軸は始動開始から
の経過時間、縦軸は上述したマグネティックピックアッ
プ型センサで検出した回転速度である。DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a diagram schematically showing the abnormality detection method of the present invention. FIG. 1A shows the tendency of the rotation speed (rotational speed) of NL (low pressure system) and NH (high pressure system) when the engine is started by a starter (start assist device). In this figure, the horizontal axis represents the elapsed time from the start of the start, and the vertical axis represents the rotation speed detected by the above-described magnetic pickup type sensor.
【００１５】図１（Ａ）において、低圧系の回転開始時
ｔ１に高圧系回転速度がβ0 であり、低圧系回転速度が
α0 のときに高圧系はそれ以上の高速で回転している特
性を示している。このような特性の２軸ガスタービンエ
ンジンにおいて、本発明の異常検出方法では、以下のア
ルゴリズムによりロータの固着やセンサ故障、リード線
断線等の異常を検出する。 Ａ．低圧系回転速度がα0 以上であり、かつ高圧系回転
速度がカウント不能ならば、高圧系の異常と検出する。 Ｂ．高圧系回転速度がβ0 以上であり、かつ低圧系回転
速度がカウント不能ならば、低圧系の異常と検出する。In FIG. 1A, the high-pressure system rotation speed is β 0 at the start of rotation of the low-pressure system t 1, and the high-pressure system is rotating at a higher speed when the low-pressure system rotation speed is α 0 . The characteristics are shown. In the two-shaft gas turbine engine having such characteristics, the abnormality detection method of the present invention detects an abnormality such as rotor sticking, sensor failure, lead wire disconnection, and the like by the following algorithm. A. And a low-voltage system speed is alpha 0 or more, and if the high-voltage rotating speed count impossible, to detect the high-pressure system abnormality. B. And a high-voltage rotating speed is beta 0 or more, and the low-voltage rotational speed if the count impossible, to detect the low-pressure system abnormality.
【００１６】図１（Ａ）から、ｔ０からｔ１の間と、ｔ
０からｔ２の間は、停止状態かリードの断線かを区別で
きないが、それ以上経過した後には、上述の方法によ
り、Ａ．低圧系回転速度がα0 以上のときに高圧系はそ
れ以上高速で回転しているので、それにもかかわらず、
高圧系回転速度がカウント不能ならば、高圧系の異常と
して検出できる。また、Ｂ．高圧系回転速度がβ0 以上
のときに低圧系は回転を開始して高速回転しているの
で、それにもかかわらず、低圧系回転速度がカウント不
能ならば、低圧系の異常として検出できる。From FIG. 1A, it can be seen that between t0 and t1, t
From 0 to t2, it is not possible to distinguish between a stopped state and a lead disconnection, but after a lapse of more time, A.D. Since the low-pressure system speed is rotating at a high speed high pressure system is more when alpha 0 or more, nevertheless,
If the high-pressure system rotation speed cannot be counted, it can be detected as a high-pressure system abnormality. B. Since the high-voltage system speed is a high speed low-pressure system to start rotating when the above beta 0, nevertheless, if the low-voltage rotational speed counting impossible, can be detected as abnormality in the low-voltage system.
【００１７】図１（Ｂ）は、図１（Ａ）の関係を基に、
始動後十分に時間が経過した時の２軸の検出された回転
速度の関係を示す図である。この図に示すように、２軸
ガスタービンエンジンの低圧回転系の回転速度αと高圧
回転系の回転速度βとの関係β＝ｆ（α）を設定するこ
とができる。また、前記関係に対して所定のしきい値Δ
α，Δβを設定することもできる。FIG. 1B is based on the relationship shown in FIG.
It is a figure which shows the relationship of the detected rotational speed of 2 axes | shafts when sufficient time passes after starting. As shown in this figure, a relationship β = f (α) between the rotation speed α of the low-pressure rotation system and the rotation speed β of the high-pressure rotation system of the two-shaft gas turbine engine can be set. Further, a predetermined threshold value Δ
α and Δβ can also be set.
【００１８】本発明の方法では、上記の関係を予め設定
し、計測された低圧回転系または高圧回転系の回転速度
がこの関係から大きく外れる場合に、その回転系を異常
と検出する。特に、しきい値を設定した場合には、一方
の回転系を基準として他方の回転系を見たときに、その
数値が前記しきい値Δα，Δβを超える遅い数値を示し
たときは、その他方の回転系を異常と検出する。In the method of the present invention, the above relationship is set in advance, and if the measured rotation speed of the low-pressure rotating system or the high-pressure rotating system greatly deviates from this relationship, the rotating system is detected as abnormal. In particular, when a threshold value is set, if one of the rotation systems is viewed as a reference and the other rotation system shows a slow value exceeding the threshold values Δα and Δβ, the other The other rotation system is detected as abnormal.
【００１９】上記本発明の方法によれば、２軸ガスター
ビンエンジンの低圧回転系と高圧回転系が、運転状態で
常に連動しているので、その関係をβ＝ｆ（α）として
予め設定しておけば、この関係から大きく外れる回転系
を異常と検出するだけで、複雑な機器を用いることな
く、ロータの固着やセンサ故障、リード線断線等の異常
を確実に検出することができる。また、前記関係に対し
て所定のしきい値Δα，Δβを設定し、一方の回転系を
基準として他方の回転系を見たときに、その数値が前記
しきい値Δα，Δβを超える遅い数値を示したときは、
その他方の回転系を異常と検出することにより、しきい
値を設定するだけで、簡単なアルゴリズムで各回転系の
異常を確実に検出することができる。According to the method of the present invention, since the low-pressure rotating system and the high-pressure rotating system of the two-shaft gas turbine engine are always linked in the operating state, the relationship is preset as β = f (α). If this is done, it is possible to reliably detect an abnormality such as sticking of the rotor, sensor failure, disconnection of the lead wire, or the like without using complicated equipment simply by detecting a rotation system that largely deviates from this relationship. Further, predetermined threshold values Δα and Δβ are set for the above-mentioned relationship, and when one of the rotation systems is used as a reference and the other rotation system is viewed, the numerical values are slower than the threshold values Δα and Δβ. Is shown,
By detecting the other rotating system as abnormal, it is possible to reliably detect abnormalities in each rotating system with a simple algorithm simply by setting a threshold value.
【００２０】言い換えれば、２軸ガスタービンエンジン
の回転体の特性により、ＮＬ＝αｒｐｍならばＮＨ＝β
ｒｐｍなる関係を導き、これを１つのクライテリアとし
て相互に監視する。すなわちＮＬ＝αｒｐｍでありなが
らＮＨ＝０ｒｐｍであれば、ＮＨ側のロータの固着か、
ＮＨ側のセンサ故障か、リード断線が考えられ、少なく
ともＮＨの回転系に異常が発生したことを検出すること
ができる。また、ＮＬ，ＮＨセンサを二重、三重に冗長
化させて、判断ロジックを加えれば、より的を絞ること
が可能である。In other words, due to the characteristics of the rotating body of the two-shaft gas turbine engine, if NL = α rpm, NH = β
rpm, and monitor each other as one criterion. That is, if NH = 0 rpm while NL = α rpm, the NH-side rotor is stuck,
It is possible to detect that the sensor failure on the NH side or the lead disconnection has occurred, and that at least an abnormality has occurred in the NH rotation system. Further, if the NL and NH sensors are made redundant in a double or triple manner and a judgment logic is added, it is possible to further narrow down the target.
【００２１】なお本発明は、上述した実施形態に限定さ
れるものではなく、本発明の要旨を逸脱しない範囲で種
々の変更が可能である。The present invention is not limited to the embodiment described above, and various modifications can be made without departing from the gist of the present invention.
【００２２】[0022]
【発明の効果】上述したように、本発明の２軸ガスター
ビンエンジンの回転数センサの異常検出方法は、２軸ガ
スタービンエンジンの高圧回転系と低圧回転系の異常
を、複雑な機器を用いることなく、確実に検出すること
ができる、等の優れた効果を有する。As described above, the abnormality detection method for the rotational speed sensor of the two-shaft gas turbine engine according to the present invention uses complicated equipment to detect the abnormalities of the high-pressure rotation system and the low-pressure rotation system of the two-shaft gas turbine engine. And excellent effects such as reliable detection.
【図１】本発明の異常検出方法を模式的に示す図であ
る。FIG. 1 is a diagram schematically showing an abnormality detection method of the present invention.
【図２】２軸ガスタービンエンジンの構成図である。FIG. 2 is a configuration diagram of a two-shaft gas turbine engine.
【図３】アナログ信号の計測回路（Ａ）と周波数信号の
計測回路（Ｂ）の模式図である。FIG. 3 is a schematic diagram of an analog signal measurement circuit (A) and a frequency signal measurement circuit (B).
【符号の説明】 １ ファン ２ 高圧圧縮機 ３ 燃焼器 ４ 高圧タービン ５ 低圧タービン ６ 熱電対 ６ａ，６ｂ 金属線（又は補償導線） ７ 増幅器 ７ａ，７ｂ 抵抗 ８ 回転磁性体 ８ａ 磁石 ９ 増幅器 ９ａ コイル[Description of Signs] 1 Fan 2 High-pressure compressor 3 Combustor 4 High-pressure turbine 5 Low-pressure turbine 6 Thermocouple 6a, 6b Metal wire (or compensating conductor) 7 Amplifier 7a, 7b Resistance 8 Rotating magnetic body 8a Magnet 9 Amplifier 9a Coil
Claims (3)
の回転速度αと高圧回転系の回転速度βとの関係β＝ｆ
（α）を予め設定し、計測された低圧回転系または高圧
回転系の回転速度が前記関係から大きく外れる場合に、
その回転系を異常と検出する、ことを特徴とする２軸ガ
スタービンエンジンの回転系の異常検出方法。1. A relation β = f between a rotation speed α of a low-pressure rotation system and a rotation speed β of a high-pressure rotation system of a two-shaft gas turbine engine.
(Α) is set in advance, and when the measured rotation speed of the low-pressure rotation system or the high-pressure rotation system largely deviates from the above relationship,
A method for detecting an abnormality in a rotating system of a two-shaft gas turbine engine, comprising detecting the rotating system as abnormal.
Δβを設定し、一方の回転系を基準として他方の回転系
を見たときに、その数値が前記しきい値Δα，Δβを超
える遅い数値を示したときは、その他方の回転系を異常
と検出する、ことを特徴とする請求項１に記載の２軸ガ
スタービンエンジンの回転系の異常検出方法。2. A predetermined threshold value Δα,
When Δβ is set and one of the rotation systems is viewed as a reference and the other rotation system shows a slow value exceeding the threshold values Δα and Δβ, the other rotation system is regarded as abnormal. The method for detecting an abnormality in a rotating system of a two-shaft gas turbine engine according to claim 1, wherein the abnormality is detected.
β0 であり、低圧系回転速度がα0 のときに高圧系はそ
れ以上の高速で回転している特性の２軸ガスタービンエ
ンジンにおいて、 Ａ．低圧系回転速度がα0 以上であり、かつ高圧系回転
速度がカウント不能ならば、高圧系の異常と検出し、 Ｂ．高圧系回転速度がβ0 以上であり、かつ低圧系回転
速度がカウント不能ならば、低圧系の異常と検出する、
ことを特徴とする２軸ガスタービンエンジンの回転系の
異常検出方法。3. A two-shaft gas turbine engine characterized in that the high-pressure system rotation speed is β 0 at the start of rotation of the low-pressure system and the high-pressure system is rotating at a higher speed when the low-pressure system rotation speed is α 0. In A. If the low-pressure system rotation speed is α 0 or more and the high-pressure system rotation speed cannot be counted, it is detected that the high-pressure system is abnormal; If the high-pressure system rotation speed is equal to or greater than β 0 and the low-pressure system rotation speed cannot be counted, it is detected as a low-pressure system abnormality.
A method for detecting an abnormality in a rotating system of a two-shaft gas turbine engine, characterized by comprising:
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|---|---|---|---|
| JP05245699A JP4058574B2 (en) | 1999-03-01 | 1999-03-01 | Abnormality detection method for rotating system of two-shaft gas turbine engine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP05245699A JP4058574B2 (en) | 1999-03-01 | 1999-03-01 | Abnormality detection method for rotating system of two-shaft gas turbine engine |
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| JP4058574B2 JP4058574B2 (en) | 2008-03-12 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7826954B2 (en) | 2004-06-25 | 2010-11-02 | Honda Motor Co., Ltd. | System for monitoring sensor outputs of a gas turbine engine |
| JP2011525592A (en) * | 2008-06-23 | 2011-09-22 | スネクマ | Method and system for determining the angular position of a turbojet rotor |
| JP2015075406A (en) * | 2013-10-09 | 2015-04-20 | 三菱重工業株式会社 | Abnormality determination device and abnormality determination method of rotary machine |
| JP2021523368A (en) * | 2018-05-09 | 2021-09-02 | アーベーベー・シュバイツ・アーゲーＡＢＢ Ｓｃｈｗｅｉｚ ＡＧ | Turbine diagnosis |
-
1999
- 1999-03-01 JP JP05245699A patent/JP4058574B2/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7826954B2 (en) | 2004-06-25 | 2010-11-02 | Honda Motor Co., Ltd. | System for monitoring sensor outputs of a gas turbine engine |
| US7983829B2 (en) | 2004-06-25 | 2011-07-19 | Honda Motor Co., Ltd. | System for monitoring sensor outputs of a gas turbine engine |
| JP2011525592A (en) * | 2008-06-23 | 2011-09-22 | スネクマ | Method and system for determining the angular position of a turbojet rotor |
| JP2015075406A (en) * | 2013-10-09 | 2015-04-20 | 三菱重工業株式会社 | Abnormality determination device and abnormality determination method of rotary machine |
| JP2021523368A (en) * | 2018-05-09 | 2021-09-02 | アーベーベー・シュバイツ・アーゲーＡＢＢ Ｓｃｈｗｅｉｚ ＡＧ | Turbine diagnosis |
| JP7090742B2 (en) | 2018-05-09 | 2022-06-24 | アーベーベー・シュバイツ・アーゲー | Turbine diagnosis |
| US11773721B2 (en) | 2018-05-09 | 2023-10-03 | Abb Schweiz Ag | Turbine diagnostics |
| US11814964B2 (en) | 2018-05-09 | 2023-11-14 | Abb Schweiz Ag | Valve position control |
| US11898449B2 (en) | 2018-05-09 | 2024-02-13 | Abb Schweiz Ag | Turbine control system |
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|---|---|
| JP4058574B2 (en) | 2008-03-12 |
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