Ignition of an automobile engine by high-peak power Nd:YAG/Cr4+:YAG laser-spark devices

被引：40

作者：

Pavel, Nicolaie ^{[1
]}

Dascalu, Traian ^{[1
]}

Salamu, Gabriela ^{[1
]}

Dinca, Mihai ^{[2
]}

Boicea, Niculae ^{[3
]}

Birtas, Adrian ^{[3
]}

机构：

[1] Natl Inst Laser Plasma & Radiat Phys, Lab Solid State Quantum Elect, Bucharest 077125, Romania

[2] Univ Bucharest, Fac Phys, Bucharest 077125, Romania

[3] Renault Technol Roumanie, North Gate Business Ctr, Voluntari 077190, Ilfov District, Romania

来源：

OPTICS EXPRESS | 2015年 / 23卷 / 26期

关键词：

NDYAG LASER; COMBUSTION CHARACTERISTICS; MULTIPLE-BEAM; PULSE-BURST; ENERGY; AIR; COMPOSITE; MIXTURES;

D O I：

10.1364/OE.23.033028

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Laser sparks that were built with high-peak power passively Q-switched Nd:YAG/Cr4+:YAG lasers have been used to operate a Renault automobile engine. The design of such a laser spark igniter is discussed. The Nd:YAG/Cr4+:YAG laser delivered pulses with energy of 4 mJ and 0.8-ns duration, corresponding to pulse peak power of 5 MW. The coefficients of variability of maximum pressure (COVPmax) and of indicated mean effective pressure (COVIMEP) and specific emissions like hydrocarbons (HC), carbon monoxide (CO), nitrogen oxides (NOx) and carbon dioxide (CO2) were measured at various engine speeds and high loads. Improved engine stability in terms of COVPmax and COVPmax and decreased emissions of CO and HC were obtained for the engine that was run by laser sparks in comparison with classical ignition by electrical spark plugs. (C)2015 Optical Society of America

引用

页码：33028 / 33037

页数：10

共 50 条

[1] Composite, all-ceramics, high-peak power Nd:YAG/Cr4+:YAG monolithic micro-laser with multiple-beam output for engine ignition
Pavel, Nicolaie
Tsunekane, Masaki
Taira, Takunori
OPTICS EXPRESS, 2011, 19 (10): : 9378 - 9384
[2] High-peak power, passively Q-switched, composite, all-polycrystalline ceramic Nd : YAG/Cr4+ : YAG lasers
Sandu, O.
Salamu, G.
Pavel, N.
Dascalu, T.
Chuchumishev, D.
Gaydardzhiev, A.
Buchvarov, I.
QUANTUM ELECTRONICS, 2012, 42 (03) : 211 - 215
[3] Multiple-beam output, high-peak power passively Q-switched Nd:YAG/ Cr4+:YAG laser for ignition application- Modeling of laser pulse characteristics and thermal behavior
Grigore, Oana-Valeria
Pavel, Nicolaie
RESULTS IN ENGINEERING, 2024, 24
[4] High-repetition-rate, high-peak-power burst mode laser with YAG/Nd:YAG/Cr4+:YAG composite crystal
Yan, Renpeng
Li, Xudong
Zhang, Yinbo
Liu, Zhixiang
Wen, Xiaolin
Chen, Deying
Zhou, Zhongxiang
OPTIK, 2018, 175 : 263 - 267
[5] >50 MW peak power, high brightness Nd:YAG/Cr4+:YAG microchip laser with unstable resonator
Lim, Hwan Hong
Taira, Takunori
OPTICS EXPRESS, 2022, 30 (04) : 5151 - 5158
[6] High-peak-power structured beams by an Nd:YAG/Cr4+:YAG laser in a near-hemispherical cavity
Tuan, P-H
Cheng, Y-Z
Tsai, W-C
Cheng, K-T
OPTICS LETTERS, 2021, 46 (21) : 5481 - 5484
[7] High average power Nd:YAG laser with Cr4+:YAG passive Q-switch
Dascalu, T
Weber, H
Phillipps, G
XI INTERNATIONAL SYMPOSIUM ON GAS FLOW AND CHEMICAL LASERS AND HIGH-POWER LASER CONFERENCE, 1997, 3092 : 52 - 55
[8] LD pumped YAG/Nd:YAG/Cr4+:YAG burst mode laser
Yan, Renpeng
Wu, Wentao
Li, Xudong
Chen, Deying
Zhou, Zhongxiang
FIFTH INTERNATIONAL SYMPOSIUM ON LASER INTERACTION WITH MATTER, 2019, 11046
[9] Generation of High-Peak Power 532-nm Green Pulses from Composite, All-Ceramics, Passively Q-switched Nd:YAG/Cr4+:YAG Laser
Salamu, Gabriela
Ionescu, Alina
Brandus, Catalina
Grigore, Oana
Pavel, Nicolaie
Dascalu, Traian
ROMOPTO 2012: TENTH CONFERENCE ON OPTICS: MICRO- TO NANOPHOTONICS III, 2013, 8882
[10] High-peak-power short-pulse laser using a Yb:YAG/Cr4+ :YAG/YAG composite crystal
Li, Jingzhao
Zhu, Siqi
OPTIK, 2019, 176 : 630 - 635

← 1 2 3 4 5 →