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OIKAWA Masakuni

Profile Research field Research achievement Educational achievement Social contribution achievement

 

Published Papers  
No.TitleJournalVolNoStart PageEnd PagePublication dateDOIReferee
1Development of Oil Film Pressure Measurement System for Engine Sliding Parts Tribology Online Nov. 15, 2023 https://doi.org/10.2474/trol.18.4491
2Clarification of Fuel and Oil Flow Behavior Around the Piston Rings of Internal Combustion Engines SAE Technical Paper Series Sep. 29, 2023 https://doi.org/10.4271/2023-32-00471
3The Verification of Engine Analysis Model Accuracy by Measuring Oil Film Pressure in the Main Bearings of a Motorcycle High-Speed Engine Using a Thin-Film Sensor Lubricants 10 11 Nov. 2022 https://doi.org/10.3390/lubricants101103141Refereed 
4Measurement of Piston Pin-Bore Oil Film Pressure under Engine Operation Lubricants 10 10 Oct. 2022 https://doi.org/10.3390/lubricants101002581Refereed 
5Effect of high compression ratio on improving thermal efficiency and NOx formation in jet plume controlled direct-injection near-zero emission hydrogen engines International Journal of Hydrogen Energy 47 73 31459 31467 Aug. 26, 2022 https://doi.org/10.1016/j.ijhydene.2022.07.0471Refereed 
6Observation of Behavior of Post-injected Fuel Film Using Photochromism Visualization Technique Transactions of Society of Automotive Engineers of Japan 53 466 471 May. 2022 https://doi.org/10.11351/jsaeronbun.53.4661Refereed 
7Effect of supercharging on improving thermal efficiency and modifying combustion characteristics in lean-burn direct-injection near-zero-emission hydrogen engines International Journal of Hydrogen Energy 47 1319 1327 Jan. 5, 2022 https://doi.org/10.1016/j.ijhydene.2021.10.0611Refereed 
8Effect of modified combustion chamber configuration and enhanced squish flow on improving thermal efficiency in jet-plume-controlled direct-injection near-zero emission hydrogen engines International Journal of Engine Research 24 2897 2907 2022 https://doi.org/10.1177/146808742211352771Refereed 
9Excellent seizure and friction properties achieved with a combination of an a-c:H:Si dlc-coated journal and an aluminum alloy plain bearing Coatings 11 Sep. 2021 https://doi.org/10.3390/coatings110910551Refereed 
10Realization of High Thermal Efficiency Near-zero Emissions and Additional Improved Performance by Optimizing Injected Spray Configuration and Injection Timing in Direct Injection Hydrogen Engines 自動車技術会論文集(Web) 51 2020  Refereed 
11Attainment of High Thermal Efficiency and Near-zero Emissions by Optimizing Injected Spray Configuration in Direct Injection Hydrogen Engines SAE Technical Papers December Dec. 19, 2019 https://doi.org/10.4271/2019-01-23061Refereed 
12Research on evaluation of hydrogen jet behavior and assessment of cooling loss reduction by measuring local heat flux in direct injection hydrogen engines Transactions of the JSME 85 875 18-00427 18-00427 Jul. 2019 https://doi.org/10.1299/transjsme.18-004271Refereed 
13Near-zero emissions with high thermal efficiency realized by optimizing jet plume location relative to combustion chamber wall, jet geometry and injection timing in a direct-injection hydrogen engine International Journal of Hydrogen Energy 44 18 9456 9465 Apr. 2019 https://doi.org/10.1016/j.ijhydene.2019.02.0581Refereed 
14Effect of Modified Jet Configuration of Rich Mixture Plume Combustion on Performance Improvement in High Pressure Direct Injection Hydrogen Engines Transactions of Society of Automotive Engineers of Japan 44 1141 1146 2013 https://doi.org/10.11351/jsaeronbun.44.11411Refereed 
15Effect of fuel jet location and ignition point in the combustion chamber on thermal efficiency and NOx formation in rich mixture plume ignition combustion of high pressure direct injection hydrogen engines Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B 79 808 2810 2817 2013 https://doi.org/10.1299/kikaib.79.28101Refereed 
16Reduction in NOx Formation by Ignition-combustion of Rich Mixture Plume in High Pressure Direct Injection Hydrogen Engines Marine Engineering 47 429 436 2012 https://doi.org/10.5988/jime.47.4291Refereed 
17Optimization of Hydrogen Jet Configuration by Single Hole Nozzle and High Speed Laser Shadowgraphy in High Pressure Direct Injection Hydrogen Engines International Journal of Automotive Engineering 2012 https://doi.org/10.20485/jsaeijae.3.1_11Refereed 
18Optimization of hydrogen jet configuration by single hole nozzle and high speed laser shadowgraphy in high pressure direct injection hydrogen engines SAE Technical Papers 2011 https://doi.org/10.4271/2011-01-20021Refereed 
19Development of high pressure H2 gas injectors, capable of injection at large injection rate and high response using a common-rail type actuating system for a 4-cylinder, 4.7-liter total displacement, spark ignition hydrogen engine SAE Technical Papers 2011 https://doi.org/10.4271/2011-01-20051Refereed 
20A Study on Hydrogen Jet Configuration and Flame Propagation by Shadowgraphic Visualization in High Pressure Direct Injection Hydrogen Engines 43 156-11 1209 1214 2011  Refereed 
21Characteristics of Low NOx Formation of Over-Rich-Mixture Plume Combustion in High Pressure Direct Injection SI Hydrogen Engines Transactions of the Society of Automotive Engineers of Japan 41 685 690 May. 2010  Refereed 
22Performance of a common-rail type high pressure UP to 10 to 20 MPA hydrogen gas injector developed for DI hydrogen fueled engines 17th World Hydrogen Energy Conference 2008, WHEC 2008 854 857 2008  Not refereed 
23A development of a high pressure H2 gas injector with high response by using common-rail injection system for direct injection H2 fuelled engines 16th World Hydrogen Energy Conference 2006, WHEC 2006 1559 1565 2006  Refereed 

 

MISC  
No.TitleJournalVolNoStart PageEnd PagePublication date
1Elucidation of Seizure Phenomenon of Plain Bearings by Measuring AE in Bearing Tester JSAE Engine Review (Web) 12 2022 
2Oil Film Pressure at Taper Shape of Piston Pin-bore during Engine Operation 自動車技術会大会学術講演会講演予稿集(Web) 2022 2022 
3Hydrogen power generation technology for mass introduction of renewable energy Feb. 10, 2021 
4Effect of DLC coating journal on improving seizure resistance of plain bearings 内燃機関シンポジウム講演論文集(CD-ROM) 32nd (Web) 2021 
5AE wave analysis for seizure phenomena between steel crank journal and aluminum alloy bearing by using bearing tester 日本トライボロジー学会トライボロジー会議予稿集(CD-ROM) 2021 2021 
6Seizure and friction properties in the combination of DLC (a-C: H: Si) coated journal and aluminum alloy plain bearing by using a bearing tester 日本トライボロジー学会トライボロジー会議予稿集(CD-ROM) 2021 2021 
7Observation of Behavior of Post-injected Fuel Film Using Photochromism Visualization Technique 自動車技術会大会学術講演会講演予稿集(Web) 2021 2021 
8Tribo-chemistry for sliding surface of crank journal 日本トライボロジー学会トライボロジー会議予稿集(CD-ROM) 2021 2021 
9Study on Dilution of Oil with Diesel Engine Fuel-Oil sampling method and properties of diluted oil- 内燃機関シンポジウム講演論文集(CD-ROM) 32nd (Web) 2021 
10Realization of High Thermal Efficiency Near-zero Emissions and Additional Improved Performance in Direct Injection Hydrogen Engines LEMA 542 2021 
11An approach to elucidate the mechanism of seizure phenomenon between crank journal and bearing 自動車技術会大会学術講演会講演予稿集(Web) 2021 2021 
12Characteristics of In-cylinder Pressure Oscillation by Increased Compression Ratio in Direct Injection Near-Zero Emission Hydrogen Engines 内燃機関シンポジウム講演論文集(CD-ROM) 32nd (Web) 2021 
13Low friction property of DLC coated crank journal under fluid lubrication 自動車技術会大会学術講演会講演予稿集(Web) 2021 2021 
14Visualization of Oil Behavior Around Engine Piston Using Photochromism Visualization Technique 自動車技術会大会学術講演会講演予稿集(Web) 2021 2021 
15Study on Improving Thermal Efficiency and Reducing NOx Emissions in High Thermal Efficiency and Near Zero Emission Direct Injection Hydrogen Engines-Findings of Combustion Characteristics Targeting to Realize Zero-NOx Emissions- 自動車技術会大会学術講演会講演予稿集(Web) 2020 2020 
16Realization of High Thermal Efficiency Near-zero Emissions and Additional Improved Performance by Optimizing Injected Spray Configuration and Injection Timing in Direct Injection Hydrogen Engines 水素エネルギーシステム 45 84 90 2020 
17Study on Improving Thermal Efficiency and Reducing NOx Emissions in High Thermal Efficiency and Near Zero Emission Direct Injection Hydrogen Engines-The Effect of Combustion Chamber Geometry on Thermal Efficiency and NOx Emissions- 自動車技術会大会学術講演会講演予稿集(Web) 2020 2020 
18Effect of Super Charging on Improving Thermal Efficiency and Combustion Characteristics in Lean Burn Direct Injection Hydrogen Engines 内燃機関シンポジウム講演論文集(CD-ROM) 29th 2018 
19Effect of Sliding Surface Profile of Piston Rings Shaped by Running-in on Friction Loss of Piston-Cylinder System 内燃機関シンポジウム講演論文集(CD-ROM) 29th 2018 
20Evaluation of Jet Configuration and Cooling Loss from Cylinder Liner by Hydrogen Concentration Measurement in Blow-by Gas in Direct Injection Hydrogen Engine 内燃機関シンポジウム講演論文集(CD-ROM) 29th 2018 
21Fundamental Characteristics of Ignition-Combustion of Rich Mixture Plume in High Pressure Direct Injection Hydrogen Engines Transactions of Society of Automotive Engineers of Japan 42 903 908 Jul. 2011 
22Characteristics of Common-rail Type High Pressure Hydrogen Fuel Injector with High Response 自動車技術会学術講演会前刷集 79-06 2006 

 

Conference Activities & Talks  
No.TitleConferencePublication datePromoterVenue
1Effect of Sliding Surface Profile of Piston Rings Shaped by Running-in on Friction Loss of Piston-Cylinder System 29th Internal Combustion Engine Symposium Nov. 27, 2018 
2Experimental Verification of Effect of Ring Specification and Oil Viscosity on Piston Frictional Force and Lubricating Oil Consumption 2018 JSAE Annual Congress (Autumn) Oct. 19, 2018