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魔界狂想曲- 第一四七八章 閥門結構-玄幻奇幻-萬花小說
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第一四七八章 閥門結構

  仔細想一下,還是不要在氣缸內部實現對閥門的控製了,太麻煩。


  在外部實現控製。


  加工難度立馬就降低了很多。


  進氣管在氣缸外麵冒出一部分。


  這部分下麵掏兩個洞,安裝兩個閥杆。


  最外麵那個閥杆正上方進氣管拐了個彎。


  進氣管的形狀是橫豎垂直的Z字形。


  進氣管的外口連接到高壓氫氣瓶。


  這個連接不是很難實現,就像是用打氣筒給氣門芯打氣似的,一個粗管子一個細管子,粗管子中帶有橡膠墊片以提高密封性,再壓緊就行了。


  壓緊可以借助旋鈕實現。


  這個壓緊功能想實現至少需要兩天的時間。


  畢竟他們的機床還是不夠精密。


  下麵就是這個奇葩的進氣口了。


  把它給搞定別的問題都會比較簡單。


  Z字形進氣管道。


  下麵有兩個閥杆,左邊還存在一個隻進氣不出氣的閥門。


  這個閥門是否可以被取消?換成最簡單的壓緊式閥門。


  想了一番之後覺得不行。


  閥杆與所在的孔洞之間其實存在縫隙,雖然非常小,卻一直會漏氣。


  氫氣漏出來在一個小盒子內,是可能會引起爆炸的。


  因此第一個閥門還是需要使用比較麻煩的這種。


  那第一個閥門應該怎麽設計以及怎麽安裝呢?

  馬林的想法是,這個閥門應該是一個圓形金屬片下麵加一個環形橡膠墊片。


  金屬片一側有個洞,套在一個軸上,洞比較鬆,使得小金屬片既能上下滑動,又能向上翻起來。但是軸的上方被封住了,無法滑脫。


  高壓氣體壓到金屬片上,它再壓住下方的墊片,就把出氣口給完全堵住了。


  這個功能不難實現。


  進氣管雖然內徑很小,但是管壁很粗,方便進行各種操作。


  從這個閥門開始向下的進氣管的所有部分都變得比較容易製作了。


  上半截進氣管和下半截進氣管怎麽連接到一起呢?


  金屬片和下麵的橡膠墊片必須先安裝好再進行焊接。


  怎麽焊接?


  就這麽把兩截管子給對到一起,然後拿焊槍焊接麽?


  閥門的位置可以把管子給做的粗一點,方麵在裏麵進行各種操作。


  最好能夠以擰螺絲的方式把它們給擰到一起,然後再焊死。


  這種連接非常的麻煩。


  就用最簡單潦草的方式來焊接。


  這樣子這個內燃機在構造上的問題基本上都解決了,剩下的就是各個閥門開多大、多久的問題了。


  擴大進氣口、管道的內徑,一次噴入燃燒室的氣體的量便可以得到控製。


  那些殘缺的圓餅,控製扇形所占的比例就可以控製每個閥門打開的時間。


  主要有五個閥門。


  氫氣進氣管上有兩個。


  兩個排氣管各有一個。


  新鮮空氣的進氣管有一個。


  下麵是傳動裝置。


  氣缸活塞通過閥杆與搖杆連接到一個齒輪上。


  齒輪接通一個齒輪組,對車輛的輪子做功。


  此外還通過另一套齒輪組對四個閥門以及一個打氣筒進行控製。


  至於管道的焊接,馬林實在是覺得頭大。


  兩根金屬管道,如何把它們給焊接在一起?

  給它們車螺絲,先擰緊螺絲,再拿焊槍焊接麽?


  就這麽做吧。


  先製作進氣管的下半截。


  它是一個豎彎形狀的。


  用失蠟法進行鑄造。


  就是一大團蜂蠟,先用機床加工成這種豎彎的管子狀。


  接著把管子浸入一種特製的黏土溶液,取出來吹幹,再浸入,再吹幹,反複很多次,直到黏土把這團蠟給包住了。


  接著加熱黏土,使得蜂蠟全都流出來。


  把黏土給燒成陶瓷。


  接著用黏土的空腔鑄造出這種管子來。


  至於螺絲,等到鑄造好了再進行雕刻吧。


  鑄造很快。


  在上部安裝一個橡膠墊片,也很快。


  再安裝一個金屬片,給金屬片的軸頂部焊一團錫,防止金屬片滑脫。


  到這裏都比較簡單。


  在管子下部打通兩個眼,安裝兩個閥杆。


  第一個閥杆要用於把上麵那個金屬片給頂起來,很容易製作。


  第二個閥杆,其實不用考慮橡膠墊片的問題了。


  打一個洞,打通管子下壁,也在上壁留個坑。


  再用車床製作出一個合適的金屬柱當做閥杆,插在洞裏就行了。


  下麵可以試試它們的氣密性怎麽樣。


  打氣筒接一個橡膠管,套在這個通氣管最上方。


  接著使勁給打氣筒加壓,瞧兩個閥門是否漏氣。


  用機械給打氣筒加壓。


  第一個閥門特別的棒,一點氣都不漏。


  第一個閥杆與第二個閥杆與孔洞的縫隙略微會漏很少一點氣,但是連聲音都聽不到,說明縫隙特別小。


  在打氣筒提供的壓強有五六個標準大氣壓的時候,閥杆的孔洞都不會發出‘嗤嗤’的聲音。


  所以完全滿足要求。


  下麵就是製作燃燒室、活塞氣缸、兩條氣路、兩個出氣管和閥門。


  難題是出氣管和閥門。


  出氣管這裏不同於別處,閥門不能漏氣。


  所以閥杆上方一定要有橡膠墊片。


  而想給出氣管內部裝墊片,難度有點高。


  所以不妨把出氣管給做的比較粗,閥杆也做的比較粗,便於操作,出氣管的內徑打的細一點就行了。


  兩個出氣管,很快就製作好了。


  直徑五厘米。


  下麵各打一個直徑三厘米的洞,都通過管子的軸心,然後再深入兩厘米。


  接著製作直徑三厘米的橡膠墊片,塞到洞的最深處。


  再接下來沿著管子的轉軸打直徑兩厘米的洞。


  然後製作直徑三厘米的金屬柱,恰好可以插入直徑三厘米的孔洞內,這個金屬柱如果向上頂住橡膠墊片,就把出氣管給堵住了,如果落下去三厘米,就把出氣管給打開了。


  把它們給製作出來也不用太久。


  氣缸、燃燒室與金屬管怎麽焊接?


  大管子套小管子,然後焊死。


  不用打螺絲了。


  這麽一想,似乎燃燒室進氣管的兩截也可以這麽焊接,下麵做成小管子,上麵做成大管子,一套一焊就行了。


  氣缸、活塞、燃燒室、兩條氣路管子的製作和安裝倒是不難,即使磨磨蹭蹭的,一天都能夠焊接好。


  燃燒室要與一個儲氣箱焊接在一起,中間有一個隻進氣不出氣的閥門,也是金屬片加橡膠墊片的結構。


  因為燃燒室溫度高,所以橡膠墊片上方還要加一層隔熱材料,他們這裏有。


  這種金屬片加橡膠墊片的結構還是比較容易製作的,效果也好。


  剩下的問題都比較麻煩。

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