空冷式發(fā)動機(jī)中冷器設(shè)計(jì)

車輛工程專業(yè)畢業(yè)論文，論文編號:JX917  論文字?jǐn)?shù):14784.頁數(shù):31

摘 要
 本文介紹了中冷器的作用、發(fā)展前景及空空中冷器的設(shè)計(jì)過程。中冷器的作用是降低發(fā)動機(jī)的進(jìn)氣溫度，有效減輕了發(fā)動機(jī)的熱負(fù)荷，提高了發(fā)動機(jī)的可靠性。同時(shí)，改善了燃燒，節(jié)省了油耗，降低了排氣溫度。特別是增壓中冷能有效地降低柴油機(jī)排放中NOx的含量，凈化了廢氣。近年來，增壓已經(jīng)成為提高功率、滿足人們對柴油發(fā)動機(jī)動力性越來越高要求的一種十分有效的方法，增壓比有逐漸提高的趨勢。但較大的增壓比也將導(dǎo)致發(fā)動機(jī)氣缸壓力提高及其機(jī)械負(fù)荷和熱負(fù)荷增加。因此在增壓系統(tǒng)中越來越多的應(yīng)用中間冷卻技術(shù)來降低發(fā)動機(jī)進(jìn)氣溫度。國內(nèi)中冷器的研發(fā)還處于起步階段，在中國有很大的市場。中冷器的組件包括上下氣室、主板、側(cè)板、散熱帶、冷卻管、紊流片。其中芯子是最重要的部分，決定中冷器的效率。首先根據(jù)給定的數(shù)據(jù)計(jì)算芯子，接著確定冷卻管、散熱帶、紊流片的種類和數(shù)據(jù)，然后根據(jù)芯子的尺寸計(jì)算得出主板、側(cè)板和氣室的各個(gè)數(shù)值。利用CAD制圖軟件繪制出裝配以及零件圖。呈現(xiàn)出一個(gè)完整的設(shè)計(jì)過程。

關(guān)鍵詞：發(fā)動機(jī)  中冷器    設(shè)計(jì)  組件

Abstract
 The paper introduces inter-cooled role, the development prospect and empty design process. Inter-cooled The effect is to reduce inter-cooled engine temperature, effectively reduce the heat load of engine, improving the reliability of the engine. At the same time, improve the combustion, save fuel, reducing the exhaust temperature. Especially turbocharged inter-cooled diesel can effectively reduce emissions in the content, purify NOx emissions. In recent years, pressure increase power has become for diesel engine, meet people and high performance requirements of a kind of very effective method, has been gradually improved than booster. But the bigger than will also cause pressurized cylinder pressure and improve engine thermal load and mechanical load. Therefore in the pressurization system of more and more application of intermediate cooling technology to reduce the engine temperature. The development of domestic inter-cooled is still in the initial stage, there's a big market in China. The kit includes and inter-cooled gas chamber, the motherboard, lateral plate, tropical, cooling tube, scattered turbulence. Which is the most important part of's decision, the efficiency. Inter-cooled According to the data calculation is given first, then the cooling tube's determination and tropical, turbulence of species and data, then according to the size of the board's lateral plate is calculated, and the gas chamber of all values. Using CAD drawing software rendering the assembly and detail drawings. Presents a complete design process.

KEYWORDS：Engine  inter-cooled  designed  components

目    錄
中文摘要...  i
英文摘要...........  ii
第一章  緒論  1
 1.1 選題意義...  1
 1.2 國內(nèi)外研究現(xiàn)狀   1
 1.3中冷器的作用.....  4
第二章  中冷器設(shè)計(jì)的術(shù)語及要點(diǎn)..    6
 2.1 中冷器設(shè)計(jì)常用術(shù)語  ...  6
 2.2 中冷器設(shè)計(jì)前需要的數(shù)據(jù) ..... 7
 2.3 中冷器的結(jié)構(gòu)形式...  8
第三章  中冷器設(shè)計(jì)計(jì)算..  .  11
 3.1 芯子的設(shè)計(jì)計(jì)算........  11
 3.2 翅片：散熱帶和紊流片 .  16
 3.3 冷卻管......  19
 3.4 管子組件...... .. 19
 3.5 主板.........  20
 3.6 側(cè)板......  21
 3.7 氣室的設(shè)計(jì).......  21
 3.8 中冷器總成技術(shù)要求.....  23
第四章  結(jié)論...  .  26
參考文獻(xiàn).............  27
致謝............  28