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type="text/css"></style> <div id="ct" class="ct2 wp cl"> <div class="mn"> <div class="bm_haa cl"> <div class="bm_h cl"> <a href="http://www.oecr.com/portal.php?mod=rss&catid=57" class="y xi2 rss" target="_blank" title="RSS">订阅</a><h1 class="xs2">文章</h1> </div></div> <div class="kjkjb"> <div class="bm vw" style="margin-bottom:0;"> <div class="h hm"> <div class="zxtoux"><img src="http://www.oecr.com/uc_server/avatar.php?uid=12&size=small" /></div> <h1 class="ph">美制造出新式汽车发动机模型 </h1> <p class="xg1"> 时间：2011-3-28 08:50<a class="zz" href="home.php?mod=space&uid=12">作者：这个夏天</a> 阅读<em id="_viewnum">(1325)</em> 评论: <a href="http://www.oecr.com/portal.php?mod=comment&id=1804&idtype=aid" title="查看全部评论"><em id="_commentnum">1</em></a></p> <div class="zxfb" ><a href="http://www.oecr.com/portal.php?mod=rss&catid=57" class="y xi2 rss" target="_blank" title="RSS">订阅</a></div> </div> <!--[diy=diysummarytop]--><div id="diysummarytop" class="area"></div><!--[/diy]--> <div class="s"> <div class="ss"><div><span>导读： </span>新发动机不是以往的内燃机，它能将汽车排放出的温室气体减少90%，这是因为，该发动机使用60%左右的燃料来产生推力，而普通汽车的发动机仅使用15%的燃料来产生推力。新发动机也不需要传动系统和冷却系统，这意味着它不 ...</div> </div> <!--[diy=diysummarybottom]--><div id="diysummarybottom" class="area"></div><!--[/diy]--> <div class="d"> <!--[diy=diycontenttop]--><div id="diycontenttop" class="area"></div><!--[/diy]--> <table cellpadding="0" cellspacing="0" class="vwtb"><tr><td id="article_content">美国密歇根州立大学的科学家设计出了一种新式汽车发动机模型，这种发动机没有活塞、(发动机)曲轴也没有阀门，但能够将尾气排放减少90%左右。<BR><BR>新发动机不是以往的内燃机，它能将汽车排放出的温室气体减少90%，这是因为，该发动机使用60%左右的燃料来产生推力，而普通汽车的发动机仅使用15%的燃料来产生推力。新发动机也不需要传动系统和冷却系统，这意味着它不仅非常环保，而且也能大量节省维护成本。<BR><BR>这种发动机是一个大转轮，燃料和空气进入其中并且通过中央入口混合在一起后，大转轮开始旋转，封锁住气体的排放口。随着压力不断增长，大转轮产生一个冲击波，压缩混合物。一旦混合物点火成功，一个排气口会被打开，让热气逃逸，汽车即开始启动。<BR><BR></td></tr></table> <!--[diy=diycontentbottom]--><div id="diycontentbottom" class="area"></div><!--[/diy]--> <script src="data/cache/home.js?eOg" type="text/javascript"></script> <div id="click_div"><table cellpadding="0" cellspacing="0" 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