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ž®–:本厂拥有国内ž®–端的液压设备ã€?br /> 诚:诚信可靠åQŒåœ¨è¥¿å—片区赢得良好的口¼„‘ã€?br /> 快:3天快速维修,为客服节¾U¦æ›´å¤šçš„æ—‰™—´ã€?br /> 专修åQšæŒ–掘机无力、憋机、动作慢、行走跑偏、液压æ܇åQŒå‘动机½{‰æŒ–掘机常见故障ã€?br /> 合同½{„¡º¦¾l´ä¿®åQ?br /> 液压æ³üc€æ•´è½¦å¤§ä¿®ä¿è´¨æœŸåQ?个月åQ‰ã€å‘动机保质期(3个月åQ?br /> 提供24ž®æ—¶å…¨å¤©ä¸“业的三包服务。维修热¾U¿ï¼š137-0834-2240<br /> è¡?-2所½Cºæ˜¯3¿Uå…¸åž‹çš„先进柔性高压喷油系¾lŸçš„原理åQŒåˆ†åˆ«æ˜¯Bosch公司的增压活塞共轨系¾l?APCRS¾pȝ»Ÿ)、卡特皮勒公司的HEUI-CRD¾pȝ»ŸåŠDelphi公司的E3-EUI¾pȝ»Ÿã€‚这几个¾pȝ»Ÿå…ähœ‰ä¸‹åˆ—共同的特炏V€?br /> <p> è¡?-2 3¿Uå…¸åž‹é«˜åŽ‹å–·æ²¹ç³»¾lŸåŽŸç?</p> <p> <img src="http://cmsimgshow.zhuchao.cc/35063/202302061113350953506340724.png" width="350" height="154" title="湖南çŽîC»£æŒ–掘机维修动作慢-挖掘机电喷发动机的类型及特点" alt="湖南çŽîC»£æŒ–掘机维修动作慢-挖掘机电喷发动机的类型及特点" /> </p> ①在¾l“构上都采用了两个控制电¼‚é˜€åQŒä¸€ä¸ªç”¨äºŽå–·æ²¹åŽ‹åŠ›çš„控制PCVåQŒå¦ä¸€ä¸ªç”¨äºŽå–·æ²ÒŽ—¶åˆÕd’Œå–ähÑa量的控制SCVã€?br /> ②都å…ähœ‰­‘…过2000bar (lbar=lOsPa)的喷油压力,òq¶å…·æœ‰è¾¾åˆ?400barå–ähÑa压力的潜力ã€?br /> ⑨具有实现多‹Æ¡å–·ž®„的能力ã€?br /> ④与å…Þp½¨å–ähÑa¾pȝ»Ÿç›¸æ¯”åQŒå–·æ²¹åŽ‹åŠ›æŽ§åˆ¶çš„瞬态响应很快,在发出控制指令的下一个åó@环就可以实现对喷油压力的控制åQŒå› è€Œé¿å…äº†ä¼ ç»Ÿå…Þp½¨¾pȝ»Ÿä¸­å˜å·¥å†µæ—¶å› æ²¹è½¨åŽ‹åŠ›æ»žåŽäº§ç”Ÿçš„æÑa量控制误差和转速的瞬时波动ã€?br /> <p> ⑤通过两个控制ç”늣é˜€çš„配合可以实现喷ž®„速率的柔性调节ã€?</p> <p> <img src="http://cmsimgshow.zhuchao.cc/35063/202302061114211113506376799.png" width="350" height="169" title="湖南çŽîC»£æŒ–掘机维修动作慢-挖掘机电喷发动机的类型及特点" alt="湖南çŽîC»£æŒ–掘机维修动作慢-挖掘机电喷发动机的类型及特点" /> </p> å›?-6是高压共轨系¾lŸç»„成,å›?-7是高压共轨系¾lŸæŽ§åˆ¶ç³»¾lŸç»„成和控制功能ã€?br /> <p> å›?-8是Bosch公司的增压活塞共轨系¾l?APCRS¾pȝ»Ÿ)的原理。燃油经加压后进入æÑa轨,然后¾lé«˜åŽ‹ç®¡˜q›å…¥å„çŽ×的喷油器。燃油在å–ähÑa器内分äؓ两èµ\åQšä¸€è·¯è¿›å…¥å¢žåŽ‹æ´»å¡žä¸Šéƒ¨çš„油腔òq¶ç»èŠ‚流孔进入增压活塞内部,后经å–ähÑa压力控制阀PCV‹¹å›žæ²¹ç®±åQ›å¦ä¸€è·¯ç»å•å‘阀˜q›å…¥å¢žåŽ‹‹zÕd¡žž®å¤´çš„æÑa腔、针阀压力室,òq¶ç»èŠ‚流孔进入控制活塞上部的控制油腔内。由于增压活 </p> <p> <img src="http://cmsimgshow.zhuchao.cc/35063/202302061115078763506353601.png" width="350" height="142" title="湖南çŽîC»£æŒ–掘机维修动作慢-挖掘机电喷发动机的类型及特点" alt="湖南çŽîC»£æŒ–掘机维修动作慢-挖掘机电喷发动机的类型及特点" /> </p> 塞的增压作用åQŒè¢«å•å‘阀隔离的部分燃油压力升高,使喷油压力可以达åˆ?000bar以上åQŒç”±äºŽé«˜åŽ‹éƒ¨åˆ†ä½äºŽå–·æ²¹å™¨å†…,所以提高了¾pȝ»Ÿçš„可靠性。喷油压力的控制是通过å–ähÑa压力控制阀PCV实现的,改变控制信号ž®±å¯ä»¥æŽ§åˆ¶å¢žåŽ‹æ´»å¡žå¤§å¤´ä¸Šã€ä¸‹æ²¹è…”的压力差大小åQŒä»Žè€ŒæŽ§åˆ¶ä½œç”¨åœ¨å¢žåŽ‹‹zÕd¡žž®å¤´æ²¹è…”内燃油上的压力,佉K’ˆé˜€åŽ‹åŠ›å®¤å†…çš„å–·ž®„æÑa压发生改变。喷油压力控刉™˜€SCV的工作原理与普通的å…Þp½¨¾pȝ»Ÿçš„高速电¼‚é˜€çš„工作原理相同,卛_½“SCV阀断电æ—Óž¼Œç”׃ºŽç‡ƒæÑa压力产生的作用于控制‹zÕd¡žä¸Šéƒ¨çš„压力大于作用于针阀承压面上的压力,所以喷油器不喷油;当SCV通电æ—Óž¼Œç”׃ºŽæŽ§åˆ¶‹zÕd¡žä¸Šéƒ¨æ²¹è…”˜q›æÑa节流孔小于出油节‹¹å­”åQŒæ‰€ä»¥æŽ§åˆ¶æ´»å¡žä¸Š   éƒ¨æÑa腔内油压降低åQŒæŽ§åˆ¶æ´»å¡žä¸Šéƒ¨çš„压力˜q…速减ž®ï¼Œé’ˆé˜€åŽ‹åŠ›å®¤é€šSCVåQŒå°±å¯ä»¥å®žçŽ°å¤šæ¬¡å–ähÑa。如果与PCV配合åQŒå°±å¯ä»¥å®žçŽ°ä¸åŒå½¢çŠ¶çš„主喷射速率曲线ã€?br /> <div> <br /> </div></p> </div> <div class="proArtiNum mt10"> <p>上一条:<a href="/supply/253.html">云南¼œžé’¢æŒ–掘机维修无力专业修理中å¿?/a></p> <p>下一条:<a href="/supply/251.html">挖掘机维修厂-工程机械å…Þp½¨ç‡ƒæÑa喷射¾pȝ»Ÿ</a></p> </div> <div class="tag">相关标签åQ?a href="/download/">挖掘机维ä¿?/a>,<a href="/news/wjjwx">挖掘æœÞZ¿®ç?/a>,<a 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