JP6874889B2 - ウェストゲートバルブの制御方法 - Google Patents
ウェストゲートバルブの制御方法 Download PDFInfo
- Publication number
- JP6874889B2 JP6874889B2 JP2020098085A JP2020098085A JP6874889B2 JP 6874889 B2 JP6874889 B2 JP 6874889B2 JP 2020098085 A JP2020098085 A JP 2020098085A JP 2020098085 A JP2020098085 A JP 2020098085A JP 6874889 B2 JP6874889 B2 JP 6874889B2
- Authority
- JP
- Japan
- Prior art keywords
- wastegate valve
- opening degree
- valve
- opening
- internal combustion
- 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
Images
Classifications
-
- 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
- F01D17/00—Regulating or controlling by varying flow
- F01D17/10—Final actuators
- F01D17/105—Final actuators by passing part of the fluid
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
- F02B37/12—Control of the pumps
- F02B37/18—Control of the pumps by bypassing exhaust from the inlet to the outlet of turbine or to the atmosphere
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
- F02B37/12—Control of the pumps
- F02B37/18—Control of the pumps by bypassing exhaust from the inlet to the outlet of turbine or to the atmosphere
- F02B37/183—Arrangements of bypass valves or actuators therefor
- F02B37/186—Arrangements of actuators or linkage for bypass valves
-
- 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
- F02C6/00—Plural gas-turbine plants; Combinations of gas-turbine plants with other apparatus; Adaptations of gas- turbine plants for special use
- F02C6/04—Gas-turbine plants providing heated or pressurised working fluid for other apparatus, e.g. without mechanical power output
- F02C6/10—Gas-turbine plants providing heated or pressurised working fluid for other apparatus, e.g. without mechanical power output supplying working fluid to a user, e.g. a chemical process, which returns working fluid to a turbine of the plant
- F02C6/12—Turbochargers, i.e. plants for augmenting mechanical power output of internal-combustion piston engines by increase of charge pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D37/00—Non-electrical conjoint control of two or more functions of engines, not otherwise provided for
- F02D37/02—Non-electrical conjoint control of two or more functions of engines, not otherwise provided for one of the functions being ignition
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/0002—Controlling intake air
- F02D41/0007—Controlling intake air for control of turbo-charged or super-charged engines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/04—Introducing corrections for particular operating conditions
- F02D41/06—Introducing corrections for particular operating conditions for engine starting or warming up
- F02D41/068—Introducing corrections for particular operating conditions for engine starting or warming up for warming-up
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/04—Introducing corrections for particular operating conditions
- F02D41/08—Introducing corrections for particular operating conditions for idling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
- F02P5/00—Advancing or retarding ignition; Control therefor
- F02P5/04—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
- F02P5/00—Advancing or retarding ignition; Control therefor
- F02P5/04—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions
- F02P5/045—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions combined with electronic control of other engine functions, e.g. fuel injection
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
- F02P5/00—Advancing or retarding ignition; Control therefor
- F02P5/04—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions
- F02P5/145—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions using electrical means
- F02P5/15—Digital data processing
- F02P5/1502—Digital data processing using one central computing unit
- F02P5/1508—Digital data processing using one central computing unit with particular means during idling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2200/00—Input parameters for engine control
- F02D2200/60—Input parameters for engine control said parameters being related to the driver demands or status
- F02D2200/602—Pedal position
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2250/00—Engine control related to specific problems or objectives
- F02D2250/18—Control of the engine output torque
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/04—Introducing corrections for particular operating conditions
- F02D41/08—Introducing corrections for particular operating conditions for idling
- F02D41/086—Introducing corrections for particular operating conditions for idling taking into account the temperature of the engine
-
- 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
- F05D2220/00—Application
- F05D2220/40—Application in turbochargers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
Description
内燃機関のターボチャージャに設けられたウェストゲートバルブの制御方法であって、
内燃機関の冷機始動時は始動が完了するまでウェストゲートバルブの開度を全開とする一方、
内燃機関の冷機アイドル時に、点火時期リタードを実行している間、ウェストゲートバルブの開度を、内燃機関の暖機後のアイドル時のウェストゲートバルブの開度よりも小さな中間開度に制御し、
アイドル時で、かつ機関温度が、点火時期リタードを実行する低温条件のときに、ウェストゲートバルブの開度を中間開度に制御する、ウェストゲートバルブの制御方法において、
点火時期リタード量に応じて、該リタード量が大きいほどウェストゲートバルブの開度を小さく設定する。
Claims (1)
- 内燃機関のターボチャージャに設けられたウェストゲートバルブの制御方法であって、
内燃機関の冷機始動時は始動が完了するまでウェストゲートバルブの開度を全開とする一方、
内燃機関の冷機アイドル時に、点火時期リタードを実行している間、ウェストゲートバルブの開度を、内燃機関の暖機後のアイドル時のウェストゲートバルブの開度よりも小さな中間開度に制御し、
アイドル時で、かつ機関温度が、点火時期リタードを実行する低温条件のときに、ウェストゲートバルブの開度を中間開度に制御する、ウェストゲートバルブの制御方法において、
点火時期リタード量に応じて、該リタード量が大きいほどウェストゲートバルブの開度を小さく設定する、ウェストゲートバルブの制御方法。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2016010528 | 2016-01-22 | ||
JP2016010528 | 2016-01-22 |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2017562481A Division JP6851323B2 (ja) | 2016-01-22 | 2016-12-20 | ウェストゲートバルブの制御方法および制御装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2020139508A JP2020139508A (ja) | 2020-09-03 |
JP6874889B2 true JP6874889B2 (ja) | 2021-05-19 |
Family
ID=59361639
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2017562481A Active JP6851323B2 (ja) | 2016-01-22 | 2016-12-20 | ウェストゲートバルブの制御方法および制御装置 |
JP2020098085A Active JP6874889B2 (ja) | 2016-01-22 | 2020-06-05 | ウェストゲートバルブの制御方法 |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2017562481A Active JP6851323B2 (ja) | 2016-01-22 | 2016-12-20 | ウェストゲートバルブの制御方法および制御装置 |
Country Status (8)
Country | Link |
---|---|
US (1) | US10683797B2 (ja) |
EP (1) | EP3406880B1 (ja) |
JP (2) | JP6851323B2 (ja) |
CN (1) | CN108463620B (ja) |
MX (1) | MX2018008495A (ja) |
MY (1) | MY193801A (ja) |
RU (1) | RU2720700C2 (ja) |
WO (1) | WO2017126277A1 (ja) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6399198B1 (ja) * | 2017-12-12 | 2018-10-03 | マツダ株式会社 | 過給機付エンジン |
CN109736933A (zh) * | 2018-12-29 | 2019-05-10 | 义乌吉利发动机有限公司 | 一种增压器排气旁通阀的调节方法及装置 |
WO2021165711A1 (ja) * | 2020-02-20 | 2021-08-26 | 日産自動車株式会社 | 内燃機関の制御方法および制御装置 |
US11131258B2 (en) * | 2020-02-21 | 2021-09-28 | Ford Global Technologies, Llc | Methods and system for reducing engine hydrocarbon emissions |
JP2023063804A (ja) * | 2021-10-25 | 2023-05-10 | トヨタ自動車株式会社 | 自動車 |
JP2023091575A (ja) * | 2021-12-20 | 2023-06-30 | トヨタ自動車株式会社 | エンジン制御装置 |
CN115263534A (zh) * | 2022-08-01 | 2022-11-01 | 长城汽车股份有限公司 | 涡轮增压器的控制方法、控制装置、电子设备及存储介质 |
Family Cites Families (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0617657B2 (ja) * | 1984-07-04 | 1994-03-09 | マツダ株式会社 | 過給機付エンジンの過給圧制御装置 |
JPH03106146U (ja) * | 1990-02-16 | 1991-11-01 | ||
JPH03275940A (ja) * | 1990-03-23 | 1991-12-06 | Toyota Motor Corp | 過給機付エンジンの制御方法 |
JPH04287835A (ja) | 1991-03-19 | 1992-10-13 | Toyota Motor Corp | ターボチャージャの過給圧制御装置 |
JP3546649B2 (ja) * | 1997-07-15 | 2004-07-28 | トヨタ自動車株式会社 | 筒内噴射式火花点火内燃機関 |
JP2002364503A (ja) | 2001-06-01 | 2002-12-18 | Hitachi Ltd | 排気系にターボチャージャーを備えた内燃機関の制御装置 |
JP4193400B2 (ja) | 2002-03-05 | 2008-12-10 | 株式会社Ihi | 排気タービン過給機付きエンジン |
JP4415693B2 (ja) * | 2004-02-16 | 2010-02-17 | 株式会社Ihi | 過給機 |
JP2007077840A (ja) * | 2005-09-13 | 2007-03-29 | Nissan Motor Co Ltd | 内燃機関 |
JP4577656B2 (ja) * | 2006-02-15 | 2010-11-10 | 株式会社デンソー | 過給機付き内燃機関の制御装置 |
JP2007303294A (ja) | 2006-05-09 | 2007-11-22 | Denso Corp | 過給機付き内燃機関の制御装置 |
JP2009228486A (ja) | 2008-03-19 | 2009-10-08 | Toyota Motor Corp | ターボ過給式内燃機関 |
US8333072B2 (en) * | 2008-10-01 | 2012-12-18 | Honda Motor Co., Ltd. | Wastegate control system and method |
US20110011082A1 (en) * | 2009-07-14 | 2011-01-20 | Southwest Research Institute | Emissions Control System Having External Turbocharger Wastegate and Integrated Oxidation Catalyst |
JP2013019319A (ja) | 2011-07-11 | 2013-01-31 | Toyota Motor Corp | ターボチャージャの異常判定装置 |
US8978378B2 (en) * | 2011-10-20 | 2015-03-17 | Ford Global Technologies, Llc | Method and system for reducing turbocharger noise during cold start |
EP2803842B1 (en) * | 2012-01-11 | 2018-02-28 | Toyota Jidosha Kabushiki Kaisha | Control device for internal combustion engine |
US9238983B2 (en) * | 2012-09-06 | 2016-01-19 | Ford Global Technologies, Llc | Secondary air introduction system |
US9151200B2 (en) * | 2012-09-06 | 2015-10-06 | Ford Global Technologies, Llc | Secondary air introduction system and method for system operation |
JP6011186B2 (ja) | 2012-09-18 | 2016-10-19 | 日産自動車株式会社 | ターボチャージャ |
US9103272B2 (en) * | 2013-06-10 | 2015-08-11 | Ford Global Technologies, Llc | Method and system for binary flow turbine control |
JP6236960B2 (ja) | 2013-07-25 | 2017-11-29 | 日産自動車株式会社 | 火花点火式内燃機関の制御装置および制御方法 |
US9109505B2 (en) * | 2013-08-13 | 2015-08-18 | Ford Global Technologies, Llc | Methods and systems for condensation control |
JP6079513B2 (ja) | 2013-09-04 | 2017-02-15 | トヨタ自動車株式会社 | ウェイストゲートバルブの制御装置 |
JP6323750B2 (ja) * | 2014-03-25 | 2018-05-16 | 三菱自動車工業株式会社 | 内燃機関の排気装置 |
JP6331690B2 (ja) | 2014-05-23 | 2018-05-30 | 日産自動車株式会社 | ガソリンエンジンの制御装置 |
JP6295855B2 (ja) | 2014-06-25 | 2018-03-20 | トヨタ自動車株式会社 | 過給機付き内燃機関の制御装置 |
-
2016
- 2016-12-20 WO PCT/JP2016/087871 patent/WO2017126277A1/ja active Application Filing
- 2016-12-20 JP JP2017562481A patent/JP6851323B2/ja active Active
- 2016-12-20 EP EP16886516.0A patent/EP3406880B1/en active Active
- 2016-12-20 MY MYPI2018702480A patent/MY193801A/en unknown
- 2016-12-20 RU RU2018130156A patent/RU2720700C2/ru active
- 2016-12-20 CN CN201680078348.XA patent/CN108463620B/zh active Active
- 2016-12-20 US US16/071,609 patent/US10683797B2/en active Active
- 2016-12-20 MX MX2018008495A patent/MX2018008495A/es unknown
-
2020
- 2020-06-05 JP JP2020098085A patent/JP6874889B2/ja active Active
Also Published As
Publication number | Publication date |
---|---|
RU2018130156A (ru) | 2020-02-26 |
EP3406880A1 (en) | 2018-11-28 |
CN108463620A (zh) | 2018-08-28 |
CN108463620B (zh) | 2021-03-30 |
RU2720700C2 (ru) | 2020-05-12 |
MX2018008495A (es) | 2018-08-15 |
EP3406880B1 (en) | 2022-07-20 |
RU2018130156A3 (ja) | 2020-03-05 |
US10683797B2 (en) | 2020-06-16 |
WO2017126277A1 (ja) | 2017-07-27 |
MY193801A (en) | 2022-10-27 |
EP3406880A4 (en) | 2019-01-16 |
BR112018014866A2 (ja) | 2018-12-11 |
JPWO2017126277A1 (ja) | 2018-12-13 |
JP6851323B2 (ja) | 2021-03-31 |
US20190032548A1 (en) | 2019-01-31 |
JP2020139508A (ja) | 2020-09-03 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP6874889B2 (ja) | ウェストゲートバルブの制御方法 | |
JP5293897B2 (ja) | 内燃機関の制御装置 | |
JP5680169B1 (ja) | 内燃機関の制御装置および制御方法 | |
JP5170339B2 (ja) | 過給機付き内燃機関の制御装置 | |
JP5847857B2 (ja) | 内燃機関のバルブの基準位置学習装置 | |
JP6275181B2 (ja) | 電動ウェイストゲートバルブ制御装置 | |
JP6536696B2 (ja) | ウェストゲートバルブの制御方法および制御装置 | |
JP2007303294A (ja) | 過給機付き内燃機関の制御装置 | |
US11767787B2 (en) | Catalyst early activation control at cold engine start | |
JP4507123B2 (ja) | 内燃機関制御装置 | |
JP6128425B2 (ja) | 内燃機関の過給機制御装置 | |
US20170363025A1 (en) | Control apparatus for internal combustion engine | |
JP4501761B2 (ja) | 内燃機関の制御装置 | |
JP2012188994A (ja) | 過給機付き内燃機関の制御装置 | |
JP6201439B2 (ja) | 内燃機関の制御装置および制御方法 | |
US11939907B2 (en) | Engine control device | |
JP5045510B2 (ja) | 過給機付き内燃機関の制御装置 | |
JP2021165548A (ja) | ターボチャージャ付き内燃機関の減速制御方法および減速制御装置 | |
JP2021124047A (ja) | エンジンシステム | |
JP2019127849A (ja) | 内燃機関の触媒暖機制御方法および触媒暖機制御装置 | |
JP2019199824A (ja) | 過給制御装置 | |
BR112018014866B1 (pt) | Motor de combustão interna e método de controle da válvula de gaveta de descarga | |
JP2001041048A (ja) | 過給機を備えた内燃機関 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20200605 |
|
TRDD | Decision of grant or rejection written | ||
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20210317 |
|
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20210323 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20210405 |
|
R151 | Written notification of patent or utility model registration |
Ref document number: 6874889 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R151 |