【正文】
33 = ???? = 指示功率 iP 計算 ?? ???????? ? 430 65?niVpP sii kW 指示比油耗 ig ?????? 66iui Hg ? hKWg ? 有效功率 Pe Pe miP ??? = = 平均有效壓力 mep ?? imme pp ? = 有效熱效率 e? ?? ime ??? = 有效比油耗 eg 66 ?????? eue Hg ? hKWg ? 升功率 LP ?? ?????? ?430 65?npP meL 1??LKW 車輛與動力工程學(xué)院畢業(yè)設(shè)計說明書 34 第五章 結(jié) 論 此次的 480 柴油機氣缸蓋設(shè)計中,在結(jié)構(gòu)布局方面參考了國內(nèi)工廠的圖樣、柴油機實體、一些研究資料和柴油機設(shè)計手冊中關(guān)于氣缸蓋的部分;在主要尺寸方面主要依據(jù)了柴油機設(shè)計手冊中的經(jīng)驗公式和統(tǒng)計數(shù)據(jù)。 從整體上講,氣缸蓋在材料的選取方面取得了實際的進展, 在滿足使用要求的前提下,盡可能的滿足了經(jīng)濟性要求。在氣道的設(shè)計方面,注意了氣道內(nèi)表面的光滑,這樣可以減小進排氣的阻力,減小功率的損失。在形位公差的選擇方面,針對內(nèi)燃機的使用條件和現(xiàn)有的加工條件,對氣缸蓋的各種公差和粗糙度的選擇大部分都是高于國家標(biāo)準(zhǔn)的。 由于我 國氣 缸蓋 的機 械加 工工 藝技 術(shù)和 整體工 藝水 平正 在隨 著高技術(shù)含量內(nèi)燃機的發(fā)展而日趨提高和完善,工藝水平隨著與國際接軌和科技發(fā)展將由落后變?yōu)橹鸩浇咏a(chǎn)品開發(fā)水平??偟膩碚f可以滿足 480 高速柴油機生產(chǎn)需要。綜上所述,在與其他多缸機相比, 480高速柴油機在 價格與性能方面都有很大優(yōu)勢。因此, 480 高速柴油機在農(nóng)用和車用市場上有很大的競爭力和美好的發(fā)展前景。 車輛與動力工程學(xué)院畢業(yè)設(shè)計說明書 35 參考文獻 [1] 楊江偉 . 柴油機缸蓋氣道的設(shè)計和研究 .內(nèi)燃機及配件,2021, (9):2324. [2] 張儒華 . 氣缸蓋中一些關(guān)鍵功能結(jié)構(gòu)的承載機理研究 . 內(nèi)燃機學(xué)報 .22(3):2244. [3] 史勝祥, 杜黎清 . 柴油機氣缸蓋座圈導(dǎo)管孔精加工工藝解析 . 現(xiàn)代零部件, 2021(9):6970 [4] 郭昌明等 . 大功率柴油機整機鋁合金氣缸蓋結(jié)構(gòu)優(yōu)化研究 . 內(nèi)燃機, 2021, (2): 59 [5] 《內(nèi)燃機設(shè)計》 .237~ 242 [6] 楊連生 . 《內(nèi)燃機設(shè)計》 .北京 :中國農(nóng)業(yè)機械出版社 ,1980,394~ 414 [7] 劉永長 . 《內(nèi)燃機原理》 .華中科技大學(xué)出版社, 2021,29~ 31 [8] 袁兆成 . 《內(nèi)燃機設(shè)計》 .北京 :機械工業(yè)出版社 ,2021,33~ 39 [9] 許道延 ,丁賢華 ,王之麒等 .《高速柴油機概念設(shè)計與實踐》 .北京 :機械工業(yè)出版社, 2021, 47~ 68 [10] 徐 灝,邱宣懷,蔡春源等 .《機械設(shè)計手冊》第一卷 .北京 :機械工業(yè)出版社, 1991, 3— 26~ 3— 30 [11] 符錫侯, 楊杰民 . 《車輛用柴油機總體設(shè)計》 .上海:上海交通大學(xué)出版社, 1992,228~ 229 [12] 周龍保,劉巽俊,高宗英等 .《內(nèi)燃機原理》 .北京 :機械工業(yè)出版社, 2021, 53~ 59 [13] 文九巴 .《機械工程材料》 .北京 :機械工業(yè)出版社, 179~ 182 [14] 陳家瑞,蔣興閣,張寶生等 . 《汽車構(gòu)造》 .北京 :機械工業(yè)出版社, 2021, 54~ 56 [15] 王昆,何小柏,汪信遠 .《機械設(shè)計、機械設(shè)計基礎(chǔ)課程設(shè)計》 .北京:高等教育出版社, 1996, 167~ 176 [16] 何永熹,武充沛 .《幾何精度規(guī)范學(xué)》 .北京:北京理工大學(xué)出版社, 2021, 268~ 283 車輛與動力工程學(xué)院畢業(yè)設(shè)計說明書 36 致 謝 緊張的畢業(yè)設(shè)計馬上就要結(jié)束了,在本次設(shè)計中我翻閱了很多資料,把我 以前學(xué)過的知識重新復(fù)習(xí)了一遍,同時也使我的專業(yè)知識得到了很大的提高。 這次設(shè)計既是對我們以往所學(xué)知識的一次全面復(fù)習(xí),同時也是對我們綜合應(yīng)用能力和創(chuàng)新能力的一種提高,是我大學(xué)期間的最后一個重要的學(xué)習(xí)任務(wù),也為我今后的工作和學(xué)習(xí)奠定了很好的基礎(chǔ)。在設(shè)計的過程中遇到一些問題都得到了杜慧勇老師耐心的指導(dǎo),并很好的得到了解決,在此表示感謝。同時,也得到了在一起做畢業(yè)設(shè)計的同學(xué)的幫助,在這里也一并表式感謝! a g an employme nt tribuna l clai Emloyme nt tribuna ls sort out disagre e me nts betwee n employer s and employee s. You may need to make a claim to an employme nt tribun al if: you don39。t agree with the disciplin ar y action your employe r has taken against you your employe r dismis se s you and you think that you have been dismisse d unfair ly. For more infor mu, take advice from one of the anisa tions liste d under Furthe r help. Employme nt tribunals are less formal than some other courts , but it is still a legal proce ss and you will need to give evidence under an oath or affi r mati on. Most people find making a claim to an emplo yme nt tribuna l challe n ging. If you are thinking about makin g a claim to an employme nt tribunal, you should get help straight away from one of the anisati ons liste d under Furthe r help. ation about dismi ssa l and unfair dismiss al, see Dismis sal . You can make a claim to an emplo yme n t tribunal , eve n if you h ave n39。 t appe ale d against the dis ciplin ar y action your e mpl o ye r ha s take n again st you. H o we ve r , if you win yo ur case , the tr ibunal ma y r e duce an y pe ns at ion awar de d to you as a result of your failure to appeal. Reme mbe r that in most case s you must make an applic ation to an emplo yme nt tribuna l within three months of the date when the event you are plaini ng about happe ne d. If your app licat ion is r e ce ive d afte r this ti me li mit, the tr ibunal wil l not usual ly acce pt i. If you are worrie d about how the time limits apply to you If you ar e be ing re pre se nte d b y a solic itor at the tr ibunal, the y ma y as k you t o sign an agr ee me nt whe r e you p a y t he ir fee out of your co mpe nsation if you wi n the c ase . T his is kno wn as a d a mage sba se d agr e e me nt . I n Eng land and Wa le s, yo ur solicit or can39。 t char ge you mor e than 35% of your co mpe nsation if yo u wi n the case. you39。 re clear about the terms of the agree me n t. It might be best to get advice fr om a n e xpe r ie nce d adv ise r , for e xa mple , at a C itize ns Adv ice B ur e au. T o find your nearest CAB , including those that give advice by e mai l, click on nearest CAB . For more infor m ation about makin g a claim to an employme nt tribuna l, see Employme nt tribuna ls. The (lack of) air up there Cay man Islandsbased Webb, Watch m the head of Fifa39。s antiracism taskforce, is in London for the Football Association39。s 150th 車輛與動力工程學(xué)院畢業(yè)設(shè)計說明書 37 anniversary celebrations and will attend City39。s Premier League match at Chelsea on Sunday. I am going to be at the match tomorrow and I have asked to meet Ya ya Toure, he told BBC Sport. For me it39。s about how he felt and I would li ke to speak to hi m first to find out what his experience was. Uefa has opened disciplinary proceedings against CSKA for the racist behaviour of their fans duri ng City39。s 21 win. Michel Platini, president of European football39。s gover ning body, has also ordered an immediate investigation into the referee39。s actions. CSKA said they were surprised and disappointed by Toure39。s plaint. In a statement the Russian side added: We found no racist insults from fans of CSKA. Age has reached the end of the beginning of a word. May be guilty in his seems to passing a lot of different life became the appearance of the same day。 May be back in the past, to oneself the paranoid weird belief disillusionment, these days, my min