The research status of the world diesel exhaust aftertreatment technology is summarized systemicallyo at the same time, the development status and problems about oxygenation catalysis converter and particulate filter are analyzed on the basis of mentioned informations, we bring up a diesel exhaust cleanse system, that adopts the technique course of catalysis conversion combining particulate collection and regeneration the system collects exhaust particulate by means of efficacious filtering material it can oxidize ho co and macromolecule solvable organic via catalyst and diesel oil additive enhanced temperature will partly oxidize collected particulate and ultimately achieve the aim of exhaust reduction, after processing system frame design and trial matching, it ' s detected that the system can surely cleanse gas exhaust and particulate in addition, gas - ejected combustion - supporting regeneration for diesel particulate filter is also researched, we have rudimentarily designed the software and hardware of the g as - ejected combustion - supporting system having processed a series of trials, we discover the rules of the system credibly working these rules demonstrate the right direction for researching gas - ejected combustion - supporting regeneration technology
本文系統地介紹了國內外
柴油機排氣后處理技術的研究現狀,分析了氧化催化轉化器和微粒捕集器的發展現狀及存在的問題,以此為基礎,提出了一種
柴油機排氣凈化系統,該系統採用催化轉化與微粒捕集及再生相結合的技術路線,通過過濾材料的有效過濾,將排氣中的微粒
進行收集,藉助于催化劑和
柴油添加劑使排氣中hc 、 co及高分子可溶性有機物氧化,產生的高溫使得收集到的微粒部分氧化,從而達到降低排放的效果。通過系統結構設計和試驗匹配,實現了對氣體排放物和微粒的凈化。同時,論文中還
進行了
柴油機微粒捕集器噴氣助燃再生的研究,初步設計了噴氣助燃系統,
進行了控制系統軟、硬體的開發,通過正交試驗,摸索出了噴氣助燃系統可靠工作的一般規律,為噴氣助燃再生技術的開發提供了方向。
Effects of cetane number improver on emissions of swirl chamber diesel engine
十六烷值改
進劑對渦流室
柴油機排放特性的影響
Some properties of petroleum products in refinery such as gasoline octane number and diesel cetane number are necessary to be online monitored
在煉油過程中,通常需要對產品的關鍵品質比如汽油辛烷值或
柴油十六烷值等
進行在線監測。
To overcome the disadvantages of the linear calibration methods such as mlr and pls, least - squares support vector machine ( ls - svm ) is introduced to nir quantitative calibration in this thesis. for a set of diesel cetane number ( cn ) samples, the ls - svm model obtains the best performance in the cn prediction, compared with the mlr and pls model
為克服mlr與pls等線性校正方法的局限性,本文將最小二乘支持向量機( ls - svm )演算法用於近紅外光譜的定量校正,並以一批
柴油十六烷值樣品數據為例對以上方法
進行了比較。
It is a story of a little girl who enters a 3 ) magical world where she meets with 4 ) fantastic 5 ) characters like the white rabbit, the mad hatter, the cheshire cat, and the queen of hearts and her 6 ) playing card army
這是關於一個小女孩走
進奇幻國度的故事,在那裡她遇到一些奇妙的人物,好比白兔、瘋狂帽子商、
柴郡貓,以及紅心皇後跟她的撲克牌軍隊。
By evening the relief team had found all the items on their shopping list and then through the night of january 15 until dawn the following day they packed 2240 bags with enough food to feed five family members for four days. the relief supplies included rice, black beans, chickpeas, lentils, spaghetti, bath soap, laundry soap, brown sugar, candles, matches, plastic plates, chlorine to disinfect water, drinking water, shovels, notebooks, sweets and many other items
救援隊於15日晚上漏夜
進行物資的分裝,直到隔天清晨,總計完成了2240袋救援包的分裝工作,每袋救援包至少可以維持五個人四天的生活之需,內容包括白米黑豆雞嘴豆扁豆義大利面條沐浴皂洗衣皂黑糖蠟燭火
柴塑膠盤消毒污水用的氯記事本甜點飲用水鐵鏟與其他物品。
We first treated the wood with creosote
我們先用雜酚油對木
柴進行了加工處理。
It looks upon water resistant as load, simulate every instance of locomotive running and check its every parameter automatically, then collect and dispose these data of parameters, calculate the power of simulating running of locomotive, which is based on the current, and voltage of host dynamotor. afterward, it can be judged from the working state of locomotive. through experiment and adjust each parameter, it can provide important warrant to the components of locomotive whether they can work normally and credibly
即以水阻作為負載,模擬機車運行,對機車的主發電動機的電流、電壓和
柴油機的轉速等參數
進行檢測,並對檢測結果
進行處理,計算出模擬機車運行時的功率,並以此為依據,對機車的工作狀念
進行判斷,通過水阻試驗,調整有關參數,使機車運行時能發揮所要求的功率和滿足規定的工作特性。
For example the infrastructure of the technical center consists of engine dyno, chassis dyno, emission measurement and state - of - the - art product development and testing tools etc
該技術中心擁有發動機動態測量系統、底盤動態測量系統、排放測量及尖端產品開發和測量工具等先
進的博世設備,著力于燃油噴射系統的匹配,是博世
柴油系統在中國的研發基地。
Tao feng changzhou chemical company located in the jiangsu international plastics city, is in changzhou city, the river additives ltd. and jurong city tao reagent production plant product sales window, the major products : toluene, pure benzene, xylene, n - octanol, ethyl acetate, acetic acid small fat, silicone oil, aniline, poly - succinimide, benzene triazole derivatives, isopropanolamine, ethanolamine, alkylation two aniline, scale inhibitor, promoting agents, antioxidants, ppd, defoamer, metal deactivator, hx - 3308 scale and corrosion inhibitor, hx03 - 12 diesel flow improver, parathion octyl - zinc chloride bridge acid, chlorine bridge anhydride, chlorobenzene, double - dicyclopentadiene, norbornene anhydride
常州濤峰化工有限公司座落在江蘇國際塑化城,是常州市夏溪助劑有限公司和句容市龍濤試劑廠生產的產品的銷售窗口,主要經營產品:甲苯、純苯、二甲苯、辛醇、乙酸乙脂、乙酸丁脂、硅油、二苯胺、雙聚丁二酰亞胺、苯三唑衍生物、異丙醇胺、乙醇胺、烷基二苯胺、防垢劑、促
進劑、抗氧劑、降凝劑、消泡劑、金屬鈍化劑、 hx - 3308阻垢緩蝕劑、 hx03 - 12
柴油流動改
進劑、硫磷丁辛基鋅鹽、氯橋酸、氯橋酸酐、氯苯、雙聚環戊二烯、降冰片烯二酸酐等。
Finally, because high - speed power solenoid valve is one of the most important executive parts in the electronic control diesel engine and the performances of diesel engine are strongly related to the solenoid valve, the response performance of the solenoid valve is investigated. the response performance of the solenoid is influenced by many factors, such as driving voltage, electric driving unit etc. in order to have high excitation voltage and in low maintaining voltage, a high - low voltage electric driving unit is designed, and in order to make the solenoid valve close more rapidly, an active free - wheeling circuit and a bootstrapping circuit are designed in the electric driving unit, too. in the high - low electric driving unit, high voltage and low voltage are supplied by the dc - dc device and by the accumulator respectively
高速強力電磁閥的響應性能除了與閥本身的結構和材料有關外,與驅動電壓、驅動電路的設計密切相關,本文通過分析,首先開發出一種高低壓驅動電路,高壓電源是山升壓式dc - dc原理獲取的,低壓由蓄電池本身提供,實現高壓強激和低壓維持的功能,電路中採用有源續流電
柴汕機中卜軌知介系統的設訓及其七川j敝略的叭究路
進行續流,加誣了電磁閥的關閉速度;採用自舉吐路,降低了場效應管對驅動電壓的要求。
Method : a static headspace gc - ms method was used to detect sulfur in the fumatory radix bupleuri, the authentic samples free of sulfur was detected as reference
方法:運用靜態頂空毛細管氣相色譜質譜聯用技術
進行檢測市售
柴胡是否經硫黃熏蒸,並從產地採集未經硫黃熏蒸的
柴胡作為陰性對照藥材與市售
柴胡
進行比較。
Regarding the serious smoke ejection of 75 diesel engine series, this paper points out that this problem could be solved by modifying certain parameters and employing gyrating regression design. the actual experiment on 375 diesel engine series shows that, after innovation, the maximum of smoke ejection of gyrating moment falls by 24. 2 percent, and then the rating is demarcated, the smoke ejection falls by 53. 8 percent
本文針對75系列
柴油機排煙嚴重的問題,通過改變噴油嘴及相關調整參數,利用多因素正交旋轉回歸設計安排試驗,取得了較好效果.在375型
柴油機上的實驗結果表明:
進行優化匹配調整后,最大扭矩點煙度下降24 . 2 ,標定工況時煙度下降53 . 8
Growth indices of artificial cultivated hedysarummaxim. are studied by line transect methods, species diversity indices are calculated to study the sand - fixing effects of hedysarummaxim
摘要採用樣線法對人工種植羊柴進行研究,調查其生長狀況,並通過研究其物種多樣性來分析羊柴對流沙的固定效果。