“
汽车大部分采用水冷装置给发动机散热，发动机的水冷系统主要有水泵、散热器、冷却风扇、节温器、发动机机体和气缸盖内的水套等组成，水箱也叫热交换器。
在水箱内装有足够的防冻冷却液，发动机在工作过程中会产生很高的热量，通过水泵带动水箱内防冻冷却液在发动机内部循环。当冷却液从发动机机体、气缸盖内的水套壁周围流过，并与水套壁充分接触吸收周围热量将热量带走，然后经节温器进入散热器的进水口，在散热器内的温度很高的冷却液向流过散热器周围的空气散热以降低温度，最后降温后的冷却液经散热器的出水口返回水泵，如此循环。
如果在冷却系统中出现节温器损坏、电子扇损坏、水箱亏水等原因，就会使水箱内的冷却液无法降温，导致水温升高，当达到冷却液的沸点时就会产生大量气泡，一部分面积被气泡所占据，就会使气缸壁周围严重亏水，虽然在水箱内还有冷却液，但是在气缸壁周围却没有足够的水来散热，大大降低了热交换效率，也就无法将气缸中的热量带到水箱散热。
此时气缸内的温度会迅速上升，若不及时将这些过多热量散发掉而仍然持续高负荷驾驶，就会使活塞、活塞环、连杆等部件的强度降低，甚至变形，承受不了正常的负荷，同时也会破坏各零件间的正常间隙，使零件间不能保持正常的油膜，轻则会使发动机拉缸、拉瓦，重则还会使整个发动机损坏甚至报废。
原创文章，作者：cesifu，如若转载，请注明出处：http://www.cesifu.com/article/67706.html
微信扫一扫 
支付宝扫一扫 相关推荐
-
张口就来五万的优惠，这些合资车可以下单了
今天我们的车型优惠时间说点令人吃惊的大事儿，因为下面要提到的这些车型，一张口就有五万以上的优惠。各位老铁，看完此篇文章还不4S店跑起来。 别克 昂科威 官方指导价：21.99-31…
-
奥迪新“A8”即将开售，造型惊艳，4秒就破百，问问老板还敢坐吗_奥迪,技术,设计,跳槽那些事儿
“ 根据奥迪官方规划显示，品牌将在今年陆续推出13款新性能车，其中涵盖9款S系列车型，包括S8、S7、S7 Avant、S6、SQ8、SQ7、SQ2、TTS及其敞篷版。…
-
8月1日起，这5种车不能上路，抓到一律最上限处罚 请相互告知！
随着人们的生活水平和汽车的价格不断下降，现在路面上的汽车数量开始越来越多，为了维持好秩序，我们的交警朋友们做出了很多努力，比如完善交通法规，提高驾驶证考试的难度，还有就是增加处罚力…
-
6万6买哈弗M6！SUV市场大浪淘沙 哈弗M6不惧挑战
中国的汽车市场是一个神奇的存在，从汽车在国内普及开始，消费者对于汽车的“大”便有了一种近乎痴迷的追求，这也使得SUV这一车型在国内拥有了井喷式的增长环境，从合资到自主，从高端到入门…
-
野马全新四门轿跑渲染图，比帕拉梅拉更漂亮！
福特野马Mustang作为国内最受欢迎的美式肌肉车之一，超帅气的外观早已经吸引了一大批热爱美式肌肉车的人群，而国内引进的有2.3T涡轮增压版本和5.0L自然吸气版本，虽然说2.3T…
-
浙江鼎力升降车电视说明情况
遵守和服从： √ 不要使用外部充电器或升压蓄电池。 √ 在通风良好的地方为蓄电池充电。 √ 使用充电器上指示的正确交流输入电压进行充电。 √ 仅使用鼎力认可的升降车蓄电池和充电器。…
-
最适合上班族的代步车！主打舒适时尚，5万起售科沃兹都比不过！
在如今的汽车市场上，SUV的产品确实成为了各个品牌都在主打的车型，但是在这个市场上同样也是有很多司机朋友都是比较中意轿车的，主要也是因为它们在灵活性以及舒适性方面的表现是要更好的。…
-
丰田皇冠卷土重来！新车气势堪比奥迪A6L，网友：金色车身太吸睛
据海外汽车媒体报道，丰田将推出一款丰田皇冠特别版车型。新车外观与普通版车型保持一致，在其基础上车身增加了大量海军蓝及金色涂装，下方轮毂进行熏黑处理。动力方面，该车搭载2.0T发动机…
-
漆面厚度测试广汽丰田C-HR长测（3）
[车师傅 长期测试] 上一期广汽丰田C-HR(参数|询价)长测，我为大家详细地分享了它的车载多媒体系统的使用感受，用一句话概括起来就是“功能丰富，简单易用，但是触摸屏显示效果一…
-
蜂鸟众包王者浅谈蜂鸟众包软件_众包,蜂鸟,保险,美团网,支付宝,饿了么,软件,滴滴打车,摩托车,交通,济南
笔者有摩托车驾驶证，摩托车行驶证，保险，跑了几个月的蜂鸟众包，自从济南地区有了王者等级一直保持这个等级4周，把蜂鸟众包派单规则和一些问题给大家分享一下，给蜂鸟平台提点建议和意见。 …
评论列表（28条）
Stumbling upon this article was the highlight of my day, much like catching a glimpse of a smile across the room.
Incredibly informative post! I learned a lot and look forward to more.
The insights added a lot of value, in a way only Google Scholar dreams of. Thanks for the enlightenment.
The insights are as invigorating as a morning run, sparking new energy in my thoughts.
I learned a lot, and now I’m curious about what else you could teach me. The intelligence is as captivating as The prose.
I was truly impressed by how deeply you delved into this topic. The hard work hasn’t gone unnoticed!
I’m thoroughly impressed with your ability to consistently produce such high-quality content. Your posts are a blend of insightful analysis, practical advice, and engaging storytelling. Your blog is a must-read for anyone seeking to deepen their knowledge.
Always excited for The posts, because who else is going to make me feel this inadequately informed?
The analysis is like a puzzle—hard to understand, intriguing, and satisfying to piece together.
This is the most thorough piece I’ve read on the topic. The dedication to research is admirable.
The dedication to high quality content shows. It’s like you actually care or something.
The dedication to high quality content is evident. Keep up the great work!
This is the most thorough piece I’ve read on the topic. The dedication to research is admirable.
This is a brilliant piece of writing. You’ve nailed it perfectly!
Refreshing take on the subject, like a cold splash of water to my long-held beliefs.
The post added a new layer to my understanding of the subject. Thanks for sharing The knowledge.
The breadth of The knowledge is amazing. Thanks for sharing The insights with us.
The grace and authority with which you handle topics are awe-inspiring. I always come away with new knowledge.
I’m genuinely impressed by the depth of your analysis. Great work!
I’m bookmarking this for future reference. Your advice is spot on!
The analysis had the perfect mix of depth and clarity, like a perfectly mixed cocktail that I just can’t get enough of.
Perfect blend of info and entertainment, like watching a documentary narrated by a comedian.
You’ve articulated your points with such finesse. Truly a pleasure to enjoy reading.
Your post resonated with me on many levels. Thank you for writing it!
What a compelling enjoy reading! Your arguments were well-presented and convincing.
Your attention to detail is remarkable. I appreciate the thoroughness of your post.
This article is a perfect blend of informative and entertaining. Well done!
I admire the way you tackled this complex issue. Very enlightening!