的表面强化处理，具有较强的刚性及耐磨性，曲轴的8个平衡块能有效地平衡曲轴转动过程中各缸的不平衡离心力
de biao mian qiang hua chu li ju you jiao qiang de gang xing ji nai mo xing qu zhou de 8 ge ping heng kuai neng you xiao di ping heng qu zhou zhuan dong guo cheng zhong ge gang de bu ping heng li xin li
高功率、大扭矩的工况中平稳、宁静地运转。3)振动减小8平衡块曲轴：曲轴采用专用钢材锻造成型，经过严格
gao gong lv da niu ju de gong kuang zhong ping wen ning jing di yun zhuan 3) zhen dong jian xiao 8 ping heng kuai qu zhou qu zhou cai yong zhuan yong gang cai duan zao cheng xing jing guo yan ge
变动的作用力，有效地加强了曲轴轴承的刚度，解决了分散式主轴承盖工作条件恶劣的不足，从而保证了发动机在
bian dong de zuo yong li you xiao di jia qiang le qu zhou zhou cheng de gang du jie jue le fen san shi zhu zhou cheng gai gong zuo tiao jian e lie de bu zu cong er bao zheng le fa dong ji zai
2)刚性提高整体型主轴承盖：采用低重量、高刚性整体式主轴承盖，能有效地吸收和分担因曲轴运转产生周期性
2) gang xing ti gao zheng ti xing zhu zhou cheng gai cai yong di zhong liang gao gang xing zheng ti shi zhu zhou cheng gai neng you xiao di xi shou he fen dan yin qu zhou yun zhuan chan sheng zhou qi xing
于曲轴转速的速度旋转，可以有效消除发动机运转时在垂直方向及旋转方向的震动，使整车行驶宁静、乘感舒适。
yu qu zhou zhuan su de su du xuan zhuan ke yi you xiao xiao chu fa dong ji yun zhuan shi zai chui zhi fang xiang ji xuan zhuan fang xiang de zhen dong shi zheng che hang shi ning jing cheng gan shu shi
塞的点火效率提供，燃烧更加充分。二是低振动、低噪音主要得益于平衡机构布置在气缸体上的两个平衡轴以两倍
sai de dian huo xiao lv ti gong ran shao geng jia chong fen er shi di zhen dong di zao yin zhu yao de yi yu ping heng ji gou bu zhi zai qi gang ti shang de liang ge ping heng zhou yi liang bei
心，这样使流通截面积增大，单个气门的受热面积减少，气门的刚度得到加强；气流在燃烧室内布置均匀，使火花
xin zhe yang shi liu tong jie mian ji zeng da dan ge qi men de shou re mian ji jian shao qi men de gang du de dao jia qiang qi liu zai ran shao shi nei bu zhi jun yun shi huo hua
燃烧火焰的传播，提高最大爆发压力。多气门：每个气缸有2个进气门、2个排中原证券集成版气门，火花塞布置在4个气门的中
ran shao huo yan de chuan bo ti gao zui da bao fa ya li duo qi men mei ge qi gang you 2 ge jin qi men 2 ge pai zhong yuan zheng quan ji cheng ban qi men huo hua sai bu zhi zai 4 ge qi men de zhong
气效率、燃烧效率高横向气流：由于采用顶置式气门机构，燃烧室内形成横向气流，混合气更加均匀分布，有利于
qi xiao lv ran shao xiao lv gao heng xiang qi liu you yu cai yong ding zhi shi qi men ji gou ran shao shi nei xing cheng heng xiang qi liu hun he qi geng jia jun yun fen bu you li yu
置，使得进气阻力较小，进气流速提高，从而采用比较高的压缩比，实现中原证券集成版高效率的燃烧及输出更强的动力。2)充
zhi shi de jin qi zu li jiao xiao jin qi liu su ti gao cong er cai yong bi jiao gao de ya suo bi shi xian zhong yuan zheng quan ji cheng ban gao xiao lv de ran shao ji shu chu geng qiang de dong li 2) chong
6发动机的性能1)压缩比提高（9.5或10）顶置式气门机构使燃烧室的结构更加紧凑，进气系统可以优化布
6 fa dong ji de xing neng 1) ya suo bi ti gao 9.5 huo 10 ding zhi shi qi men ji gou shi ran shao shi de jie gou geng jia jin cou jin qi xi tong ke yi you hua bu
）/4g64（2.4升）两大系列，直列4缸、16气门、单顶置凸轮轴、电子控制多点燃油喷射。）一是4g
/4g64 2.4 sheng liang da xi lie zhi lie 4 gang 16 qi men dan ding zhi tu lun zhou dian zi kong zhi duo dian ran you pen she yi shi 4g
于它。笔者认为从技术层面看4g6系列中原证券集成版发动机有三方面优势。（三菱4g6系列发动机分为4g63（2.0升
yu ta bi zhe ren wei cong ji shu ceng mian kan 4g6 xi lie zhong yuan zheng quan ji cheng ban fa dong ji you san fang mian you shi san ling 4g6 xi lie fa dong ji fen wei 4g63 2.0 sheng
列发动机的引入带来了市场。而今年即将上市的奇瑞瑞虎，双环ceo以及已经下线的长城哈弗cuv都“相约“
lie fa dong ji de yin ru dai lai le shi chang er jin nian ji jiang shang shi de qi rui rui hu shuang huan ceo yi ji yi jing xia xian de chang cheng ha fu cuv dou xiang yue
的设计，配气系统相对于顶置凸轮轴发动机复杂得多中原证券集成版，要把2气门改成4气门几乎是不可能的。这为三菱4g6系
de she ji pei qi xi tong xiang dui yu ding zhi tu lun zhou fa dong ji fu za de duo zhong yuan zheng quan ji cheng ban yao ba 2 qi men gai cheng 4 qi men ji hu shi bu ke neng de zhe wei san ling 4g6 xi
停止4y发动机的生产已有多年，主要原因之一就是结构上的不足限制了491的发展。491采用了侧置凸轮轴
ting zhi 4y fa dong ji de sheng chan yi you duo nian zhu yao yuan yin zhi yi jiu shi jie gou shang de bu zu xian zhi le 491 de fa zhan 491 cai yong le ce zhi tu lun zhou
解，国内生产491的厂家一年的产量达到三四万台，就可以有非常可观的中原证券集成版利润。）但一个现实是，日本丰田公司
jie guo nei sheng chan 491 de chang jia yi nian de chan liang da dao san si wan tai jiu ke yi you fei chang ke guan de zhong yuan zheng quan ji cheng ban li run dan yi ge xian shi shi ri ben feng tian gong si
91qe，究其原因491优势在于投资少、价格低。投资少的直接结果就是固定成本分摊快、产品价格低（据了
91qe jiu qi yuan yin 491 you shi zai yu tou zi shao jia ge di tou zi shao de zhi jie jie guo jiu shi gu ding cheng ben fen tan kuai chan pin jia ge di ju le
-03-1409:38:中原证券集成版25作者:赵一飞双环来宝，长城赛弗以及其他国内厂家的产品，都曾用的是发动机4
-03-1409:38: zhong yuan zheng quan ji cheng ban 25 zuo zhe : zhao yi fei shuang huan lai bao chang cheng sai fu yi ji qi ta guo nei chang jia de chan pin dou ceng yong de shi fa dong ji 4
特别关注：ceo，瑞虎，哈弗共用4g64发动机解密http://www.che168.com2005
te bie guan zhu ceo rui hu ha fu gong yong 4g64 fa dong ji jie mi http://www.che168.com2005