JP5346190B2 - 燃料正規化出力応答を利用したガスタービン燃焼消焔検出のための方法及びシステム - Google Patents
燃料正規化出力応答を利用したガスタービン燃焼消焔検出のための方法及びシステム Download PDFInfo
- Publication number
- JP5346190B2 JP5346190B2 JP2008216043A JP2008216043A JP5346190B2 JP 5346190 B2 JP5346190 B2 JP 5346190B2 JP 2008216043 A JP2008216043 A JP 2008216043A JP 2008216043 A JP2008216043 A JP 2008216043A JP 5346190 B2 JP5346190 B2 JP 5346190B2
- Authority
- JP
- Japan
- Prior art keywords
- fnp
- consumption
- lean
- fuel
- turbine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000000446 fuel Substances 0.000 title claims description 74
- 238000002485 combustion reaction Methods 0.000 title claims description 42
- 230000004044 response Effects 0.000 title claims description 26
- 238000000034 method Methods 0.000 title claims description 20
- 238000001514 detection method Methods 0.000 title description 3
- 230000001052 transient effect Effects 0.000 claims description 22
- 230000008033 biological extinction Effects 0.000 claims description 8
- 230000008859 change Effects 0.000 claims description 7
- 238000012544 monitoring process Methods 0.000 claims description 3
- 239000007789 gas Substances 0.000 description 37
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 36
- 238000004422 calculation algorithm Methods 0.000 description 36
- 239000003570 air Substances 0.000 description 7
- 238000004364 calculation method Methods 0.000 description 4
- 238000012937 correction Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 3
- 229910002091 carbon monoxide Inorganic materials 0.000 description 3
- 238000009792 diffusion process Methods 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 230000007774 longterm Effects 0.000 description 3
- 238000012806 monitoring device Methods 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000009529 body temperature measurement Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000004904 long-term response Effects 0.000 description 2
- 230000000116 mitigating effect Effects 0.000 description 2
- 238000010606 normalization Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000010791 quenching Methods 0.000 description 2
- 230000000171 quenching effect Effects 0.000 description 2
- 239000012080 ambient air Substances 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C9/00—Controlling gas-turbine plants; Controlling fuel supply in air- breathing jet-propulsion plants
- F02C9/26—Control of fuel supply
- F02C9/28—Regulating systems responsive to plant or ambient parameters, e.g. temperature, pressure, rotor speed
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D21/00—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for
- F01D21/003—Arrangements for testing or measuring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C9/00—Controlling gas-turbine plants; Controlling fuel supply in air- breathing jet-propulsion plants
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2260/00—Function
- F05D2260/80—Diagnostics
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2270/00—Control
- F05D2270/01—Purpose of the control system
- F05D2270/09—Purpose of the control system to cope with emergencies
- F05D2270/092—Purpose of the control system to cope with emergencies in particular blow-out and relight
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Turbines (AREA)
Description
ここで、Powerは、発電機の出力において駆動メガワットで表され、Fuelrefは、機械に供給される総燃料基準要求を表し、FuelrefFSNLは、全速無負荷において要求される燃料基準を表す。コントローラはまた、エミッション制御モデルのゲインの変更を開始させる出力信号を含む、予混合運転中の燃焼器内の希薄消焔の検出に対するプログラム応答を提供する。
閾値アルゴリズム505内では、発電機出力ブレーカ閉ステータス592がシングルショット回路506をトリガして、移動ブロック507でFuelrefパラメータ577の値を取得し、FuelrefFSNL508の値を構築する。減算ブロック509は、燃料正規化出力計算における分母(Fuelref−FuelrefFSNL)(燃料基準デルタ512)を構築する。
505 閾値アルゴリズムブロック
515 燃料正規化出力(FNP)
522 比較ブロック
525 FNP差異トリガ
545 閉ループエミッション制御ブロック
560 補正パラメータ制御(CPC)ブロック
565 タービン排気基準温度
575 タービンコントローラ
580 ガスタービンエンジン
Claims (9)
- ガスタービンエンジン(580)の1つの燃焼缶において希薄消焔を検出する方法であって、
変化する燃料要求に起因しない発生出力のシフトを検出する段階(505)と、
前記発生出力のシフトが燃焼器内の希薄消焔に起因することを判定する段階(522)と、
信号(525)をタービンコントローラ(575)に送信して、全ての燃焼器における希薄消焔に対するマージンを増大させる動作を開始させる段階と、
全ての燃焼器についての希薄消焔に対するマージンを増大させる応答(575)を実施する段階と、
を含み、
変化する燃料要求に起因しない発生出力のシフトを検出する段階が、次式
FNP=Power/(Fuelref−FuelrefFSNL)
により燃料正規化出力(FNP)(515)を計算する段階を含む、
方法。
ここで、Power(594)は発電機(590)の出力において駆動メガワットで示され、Fuelref(577)は機械に供給される総燃料基準要求を示し、FuelrefFSNL(508)は全速無負荷において要求される燃料基準を示す。 - FNPを計算する段階が、タービン発電機ブレーカ(591)が閉じられたとき(592)にFNP(515)を監視する段階(506)を更に含む、請求項1に記載の方法。
- 変化する燃料要求に起因しない発生出力のシフトを検出する段階が、発電機負荷ブレーカが閉じられたときにFuelrefFSNLをFuelrefの値に設定する段階、を含む、請求項1に記載の方法。
- 変化する燃料要求に起因しない発生出力のシフトを検出する段階が、
算出FNP(515)を追跡する段階と、
前記算出FNP(515)にフィルタ(516)を適用して、フィルタリングされたFNP(518)を構築する段階と、
前記フィルタリングされたFNP(518)を追跡する段階と、
前記フィルタリングされたFNP(518)と前記算出FNP(515)との間の差異を求める段階(519)と、
を更に含む、請求項1に記載の方法。 - 前記FNPにフィルタを適用する段階が、前記算出FNP(515)に約5秒の時定数(517)を備えた遅延フィルタ(516)を適用する段階を含む、請求項4に記載の方法。
- 発生出力のシフトが燃焼器内の希薄消焔に起因することを判定する段階が、前記フィルタリングされたFNP(518)と前記算出FNP(515)との間の差異(520)が所定の閾値(521)を上回るか否かを判定する段階(522)を含む、請求項4に記載の方法。
- 所定の閾値(521)に関する値が、予混合モードで運転中に少なくとも1つの缶における消焔によって引き起こされる前記フィルタリングされたFNP(518)と前記算出FNP(515)との間の差異(520)よりも小さく、所定の運転過渡状態に起因する前記フィルタリングされたFNP(518)と前記算出FNP(515)との間の差異(520)よりも大きいことを特徴とする、請求項6に記載の方法。
- タービンコントローラに信号を送信して、全ての燃焼器における希薄消焔に対するマージンを増大させる動作を開始させる段階が、前記フィルタリングされたFNP(518)と前記算出FNP(515)との間の差異(520)が所定の閾値(521を上回るときに前記タービンコントローラ(575)に信号を送信する段階を含む、請求項7に記載の方法。
- 全ての燃焼器のための希薄消焔に対するマージンを増大させる応答を実施する段階が、エミッションモデルのルーチンゲイン(546)においてステップ変化を実施する段階(550)を含む、請求項8に記載の方法。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/845,979 | 2007-08-28 | ||
US11/845,979 US7997083B2 (en) | 2007-08-28 | 2007-08-28 | Method and system for detection of gas turbine combustion blowouts utilizing fuel normalized power response |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2009052557A JP2009052557A (ja) | 2009-03-12 |
JP5346190B2 true JP5346190B2 (ja) | 2013-11-20 |
Family
ID=40039634
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2008216043A Active JP5346190B2 (ja) | 2007-08-28 | 2008-08-26 | 燃料正規化出力応答を利用したガスタービン燃焼消焔検出のための方法及びシステム |
Country Status (3)
Country | Link |
---|---|
US (1) | US7997083B2 (ja) |
EP (1) | EP2031192B1 (ja) |
JP (1) | JP5346190B2 (ja) |
Families Citing this family (32)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9354618B2 (en) | 2009-05-08 | 2016-05-31 | Gas Turbine Efficiency Sweden Ab | Automated tuning of multiple fuel gas turbine combustion systems |
US9267443B2 (en) | 2009-05-08 | 2016-02-23 | Gas Turbine Efficiency Sweden Ab | Automated tuning of gas turbine combustion systems |
US9671797B2 (en) | 2009-05-08 | 2017-06-06 | Gas Turbine Efficiency Sweden Ab | Optimization of gas turbine combustion systems low load performance on simple cycle and heat recovery steam generator applications |
US8437941B2 (en) | 2009-05-08 | 2013-05-07 | Gas Turbine Efficiency Sweden Ab | Automated tuning of gas turbine combustion systems |
US8370044B2 (en) * | 2009-06-26 | 2013-02-05 | General Electric Company | NOX compliant peak for gas turbine |
FR2951540B1 (fr) * | 2009-10-19 | 2012-06-01 | Turbomeca | Test de non-extinction pour chambre de combustion de turbomachine |
US9181878B2 (en) | 2011-12-19 | 2015-11-10 | Honeywell International Inc. | Operations support systems and methods for calculating and evaluating engine emissions |
US8959925B2 (en) * | 2012-01-18 | 2015-02-24 | General Electric Company | Combustor recovery method and system |
US10088165B2 (en) | 2015-04-07 | 2018-10-02 | General Electric Company | System and method for tuning resonators |
US9745896B2 (en) | 2013-02-26 | 2017-08-29 | General Electric Company | Systems and methods to control combustion dynamic frequencies based on a compressor discharge temperature |
US9328669B2 (en) * | 2013-03-15 | 2016-05-03 | Alstom Technology Ltd | Dynamic and automatic tuning of a gas turbine engine using exhaust temperature and inlet guide vane angle |
US9410704B2 (en) | 2013-06-03 | 2016-08-09 | General Electric Company | Annular strip micro-mixers for turbomachine combustor |
US9002617B2 (en) | 2013-07-10 | 2015-04-07 | General Electric Company | Gas turbine engine controller with event trigger |
US20150075170A1 (en) * | 2013-09-17 | 2015-03-19 | General Electric Company | Method and system for augmenting the detection reliability of secondary flame detectors in a gas turbine |
US9964045B2 (en) | 2014-02-03 | 2018-05-08 | General Electric Company | Methods and systems for detecting lean blowout in gas turbine systems |
US9709279B2 (en) | 2014-02-27 | 2017-07-18 | General Electric Company | System and method for control of combustion dynamics in combustion system |
US9709278B2 (en) | 2014-03-12 | 2017-07-18 | General Electric Company | System and method for control of combustion dynamics in combustion system |
US9790834B2 (en) | 2014-03-20 | 2017-10-17 | General Electric Company | Method of monitoring for combustion anomalies in a gas turbomachine and a gas turbomachine including a combustion anomaly detection system |
US9644846B2 (en) | 2014-04-08 | 2017-05-09 | General Electric Company | Systems and methods for control of combustion dynamics and modal coupling in gas turbine engine |
US9845956B2 (en) | 2014-04-09 | 2017-12-19 | General Electric Company | System and method for control of combustion dynamics in combustion system |
JP5818945B2 (ja) * | 2014-05-20 | 2015-11-18 | 三菱日立パワーシステムズ株式会社 | ガスタービンの制御方法及びガスタービンの燃空比設定方法 |
US9845732B2 (en) | 2014-05-28 | 2017-12-19 | General Electric Company | Systems and methods for variation of injectors for coherence reduction in combustion system |
US9551283B2 (en) | 2014-06-26 | 2017-01-24 | General Electric Company | Systems and methods for a fuel pressure oscillation device for reduction of coherence |
JP6173367B2 (ja) * | 2015-02-03 | 2017-08-02 | 三菱日立パワーシステムズ株式会社 | 状態判定装置、運転制御装置、ガスタービン及び状態判定方法 |
US9791351B2 (en) | 2015-02-06 | 2017-10-17 | General Electric Company | Gas turbine combustion profile monitoring |
US10113747B2 (en) | 2015-04-15 | 2018-10-30 | General Electric Company | Systems and methods for control of combustion dynamics in combustion system |
JP2018520289A (ja) * | 2015-04-30 | 2018-07-26 | ヌオーヴォ・ピニォーネ・テクノロジー・ソチエタ・レスポンサビリタ・リミタータNuovo Pignone Tecnologie S.R.L. | 機械駆動用途における超低NOx排出ガスタービンエンジン |
US20170356650A1 (en) * | 2016-06-14 | 2017-12-14 | General Electric Company | Detecting combustion anomalies in gas turbines using audio output |
US10774753B2 (en) * | 2016-10-21 | 2020-09-15 | General Electric Company | Indirect monitoring of aircraft combustor dynamics |
US10408132B2 (en) | 2016-11-17 | 2019-09-10 | General Electric Company | Systems and methods for adaptively purging fuel circuits |
JP7252861B2 (ja) * | 2019-08-22 | 2023-04-05 | 三菱重工業株式会社 | ガスタービンの燃焼制御装置、燃焼制御方法及びプログラム |
US11280496B2 (en) * | 2020-03-25 | 2022-03-22 | General Electric Company | Gas turbine engine and methods of controlling emissions therefrom |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2999353A (en) * | 1950-07-15 | 1961-09-12 | Honeywell Regulator Co | Interrelated main fuel control and nozzle area control |
US4783957A (en) * | 1986-12-23 | 1988-11-15 | Sundstrand Corporation | Fuel control circuit for a turbine engine |
US5596871A (en) * | 1995-05-31 | 1997-01-28 | Alliedsignal Inc. | Deceleration fuel control system for a turbine engine |
US5896736A (en) * | 1997-03-06 | 1999-04-27 | General Electric Company | Load rejection rapid acting fuel-air controller for gas turbine |
JP2003206756A (ja) * | 2002-01-11 | 2003-07-25 | Ebara Corp | ガスタービン装置 |
US6912856B2 (en) * | 2003-06-23 | 2005-07-05 | General Electric Company | Method and system for controlling gas turbine by adjusting target exhaust temperature |
US7337057B2 (en) * | 2004-05-28 | 2008-02-26 | General Electric Company | Methods and apparatus for predicting and/or for avoiding lean blow-outs |
US7278266B2 (en) * | 2004-08-31 | 2007-10-09 | General Electric Company | Methods and apparatus for gas turbine engine lean blowout avoidance |
-
2007
- 2007-08-28 US US11/845,979 patent/US7997083B2/en active Active
-
2008
- 2008-08-20 EP EP08162691.3A patent/EP2031192B1/en active Active
- 2008-08-26 JP JP2008216043A patent/JP5346190B2/ja active Active
Also Published As
Publication number | Publication date |
---|---|
EP2031192A2 (en) | 2009-03-04 |
EP2031192A3 (en) | 2012-04-18 |
EP2031192B1 (en) | 2013-06-19 |
US7997083B2 (en) | 2011-08-16 |
JP2009052557A (ja) | 2009-03-12 |
US20090063003A1 (en) | 2009-03-05 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5346190B2 (ja) | 燃料正規化出力応答を利用したガスタービン燃焼消焔検出のための方法及びシステム | |
JP5546113B2 (ja) | 事象ベースの動作を使用して望ましくないガスタービン過渡応答を緩和する方法 | |
US6877307B2 (en) | Automatic combustion control for a gas turbine | |
US7975489B2 (en) | Catalyst module overheating detection and methods of response | |
US7121097B2 (en) | Control strategy for flexible catalytic combustion system | |
US8474269B2 (en) | Method of detecting a partial flame failure in a gas turbine engine and a gas turbine engine | |
JP2009008077A (ja) | マルチ缶型燃焼器に対して燃焼ダイナミックス調整アルゴリズムを用いるためのシステム及び方法 | |
KR20050047479A (ko) | 가스 터빈의 배기가스에 대한 추정 작동 방출 레벨을결정하기 위한 방법 및 시스템 | |
JP2000205563A (ja) | ガスタ―ビンの制御方法 | |
US8959925B2 (en) | Combustor recovery method and system | |
US10995679B2 (en) | Gas turbine combustor, gas turbine, and control method for gas turbine combustor | |
JP2004525331A5 (ja) | ||
US20120088197A1 (en) | System and method for determining a flame condition in a combustor | |
WO2012084453A1 (en) | Method of detecting a predetermined condition in a gas turbine and failure detection system for a gas turbine | |
KR20170053681A (ko) | 건식 저공해 기관을 위한 벌크 화염 온도 조정기 | |
US20140182297A1 (en) | Gas turbine and method of controlling a gas turbine at part-load condition | |
Bulat et al. | Active control of fuel splits in gas turbine DLE combustion systems | |
US20150075170A1 (en) | Method and system for augmenting the detection reliability of secondary flame detectors in a gas turbine | |
JP2021518523A5 (ja) | ||
JP6680555B2 (ja) | ガスタービン制御装置、ガスタービン制御方法及びプログラム | |
US20180216820A1 (en) | Intelligent control of combustion with time series and bypass filters and corresponding system | |
US20080229746A1 (en) | Method for protecting the hot gas parts of a gas turbine installation from overheating and for detecting flame extinction in the combustion chamber | |
WO2003060304A1 (en) | Gas turbine apparatus | |
JPH03102118A (ja) | ガスタービン燃焼器 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
RD04 | Notification of resignation of power of attorney |
Free format text: JAPANESE INTERMEDIATE CODE: A7424 Effective date: 20110210 |
|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20110819 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20120817 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20121113 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20130208 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20130723 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20130816 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 5346190 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
S111 | Request for change of ownership or part of ownership |
Free format text: JAPANESE INTERMEDIATE CODE: R313113 |
|
R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |