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發(fā)布時(shí)間: 2012-11-2 15:05
正文摘要:圖1-7 示出泵閥升程的變化曲線I—升程變化,正弦曲線; 曲線Ⅱ — 升程的修正量,余弦曲線;曲線Ⅲ —I和II的代數(shù)和,升程變化理論曲線;曲線Ⅳ —實(shí)際升程變化曲線。 由圖可見(jiàn): 1)hmax理論上出現(xiàn)在活塞行程中 ... |
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