CAJ | 학술논문

总结了高原环境对发动机各方面性能的影响，以及研究人员针对功率下降提出的解决措施。增压系统的改进成为目前主要研究方向，介绍了两类改进措施：高原增压匹配和可调增压技术。以带放气阀的增压器、可调截面涡轮、二级增压、相继增压、电辅助增压和复合增压这几种典型的可调增压为重点，介绍了各种技术的原理、发展、应用现状，并讨论了这些技术在高原环境下的应用前景。通过研究成果的总结和方案之间的对比可知，可变截面涡轮、二级增压、转速可控复合增压方案不仅能够使柴油机获得较好的高原功率恢复效果，而且具有较强的实用价值。
총결료고원배경대발동궤각방면성능적영향，이급연구인원침대공솔하강제출적해결조시。증압계통적개진성위목전주요연구방향，개소료량류개진조시：고원증압필배화가조증압기술。이대방기벌적증압기、가조절면와륜、이급증압、상계증압、전보조증압화복합증압저궤충전형적가조증압위중점，개소료각충기술적원리、발전、응용현상，병토론료저사기술재고원배경하적응용전경。통과연구성과적총결화방안지간적대비가지，가변절면와륜、이급증압、전속가공복합증압방안불부능구사시유궤획득교호적고원공솔회복효과，이차구유교강적실용개치。
Firstly,the adverse effects of plateaus ambient conditions on engines and the corresponding so-lutions are reviewed. The improvement for turbocharging system has been drawing the attention of re-searchers,who were dedicated to power recovery for engines running at plateau. And two types of such im-provement are introduced- matching turbocharger for plateaus usage and adjustable turbocharging tech-nologies. Secondly,the theories,history and the status quo of typical adjustable turbocharging tech-nolo-gies are presented individually,such as: Turbo Waste-gate technology,variable geometry turbocharger (VGT),two stage turbo-charger(TST),sequential turbocharging system(STC),electrically assisted turbocharger (EAT)and Combined Supercharging Sys-tem (CSC). What's more,the prospect of every technology applying at plateau was also discussed. Eventually,after the discussion and comparison,VGT, TST and Speed-Controllable Combined Supercharging were considered to be capable to enhance the power of diesel engines at plateau and also easy to be carried out.