87第4章 汽油机

Copyright©2009.Allrightsreserved.SchoolofMechanical&AutomotiveEngineeringSSouthCChinaUUniversityofTTechnology•()••Copyright©2009.Allrightsreserved.SchoolofMechanical&AutomotiveEngineeringSSouthCChinaUUniversityofTTechnology1.1)2.1)2)3)4)3.1)2)3)Copyright©2009.Allrightsreserved.SchoolofMechanical&AutomotiveEngineeringSSouthCChinaUUniversityofTTechnologyCopyright©2009.Allrightsreserved.SchoolofMechanical&AutomotiveEngineeringSSouthCChinaUUniversityofTTechnology.1.2.Copyright©2009.Allrightsreserved.SchoolofMechanical&AutomotiveEngineeringSSouthCChinaUUniversityofTTechnology1.θig()pmaxB1215a.——Copyright©2009.Allrightsreserved.SchoolofMechanical&AutomotiveEngineeringSSouthCChinaUUniversityofTTechnology(1)(2)(3)aaa=0.80.9(4)(5)(6)Copyright©2009.Allrightsreserved.SchoolofMechanical&AutomotiveEngineeringSSouthCChinaUUniversityofTTechnologyb.——90pmaxpmaxCopyright©2009.Allrightsreserved.SchoolofMechanical&AutomotiveEngineeringSSouthCChinaUUniversityofTTechnologyp3p2——MPa32——1010~15~15φφ0.175~0.25MPa/(0.175~0.25MPa/(°°))2323ϕϕϕ−−=∆∆pppCopyright©2009.Allrightsreserved.SchoolofMechanical&AutomotiveEngineeringSSouthCChinaUUniversityofTTechnologyc.——Copyright©2009.Allrightsreserved.SchoolofMechanical&AutomotiveEngineeringSSouthCChinaUUniversityofTTechnology(12~15)Copyright©2009.Allrightsreserved.SchoolofMechanical&AutomotiveEngineeringSSouthCChinaUUniversityofTTechnology2.——AT——T——UT——tttAUdtdmρ=Copyright©2009.Allrightsreserved.SchoolofMechanical&AutomotiveEngineeringSSouthCChinaUUniversityofTTechnology(1)1.1.——2.2.3.3.4.4.5.5.6.6.7.7.Copyright©2009.Allrightsreserved.SchoolofMechanical&AutomotiveEngineeringSSouthCChinaUUniversityofTTechnologyCopyright©2009.Allrightsreserved.SchoolofMechanical&AutomotiveEngineeringSSouthCChinaUUniversityofTTechnology(2)(1)=0.85~0.95(2)=1.03~1.10(3)Copyright©2009.Allrightsreserved.SchoolofMechanical&AutomotiveEngineeringSSouthCChinaUUniversityofTTechnology(3)ATCopyright©2009.Allrightsreserved.SchoolofMechanical&AutomotiveEngineeringSSouthCChinaUUniversityofTTechnology3.1)2)Copyright©2009.Allrightsreserved.SchoolofMechanical&AutomotiveEngineeringSSouthCChinaUUniversityofTTechnologya.Copyright©2009.Allrightsreserved.SchoolofMechanical&AutomotiveEngineeringSSouthCChinaUUniversityofTTechnology•HC••Copyright©2009.Allrightsreserved.SchoolofMechanical&AutomotiveEngineeringSSouthCChinaUUniversityofTTechnology1)2)Copyright©2009.Allrightsreserved.SchoolofMechanical&AutomotiveEngineeringSSouthCChinaUUniversityofTTechnology1=0.8~0.9234Copyright©2009.Allrightsreserved.SchoolofMechanical&AutomotiveEngineeringSSouthCChinaUUniversityofTTechnology(1)(2)(3)(4)a=0.8~0.9(5)aCopyright©2009.Allrightsreserved.SchoolofMechanical&AutomotiveEngineeringSSouthCChinaUUniversityofTTechnologyb.——1.2.3.4.5.Copyright©2009.Allrightsreserved.SchoolofMechanical&AutomotiveEngineeringSSouthCChinaUUniversityofTTechnologyCopyright©2009.Allrightsreserved.SchoolofMechanical&AutomotiveEngineeringSSouthCChinaUUniversityofTTechnology(1)(2)(3)(4)(5)()Copyright©2009.Allrightsreserved.SchoolofMechanical&AutomotiveEngineeringSSouthCChinaUUniversityofTTechnology.()1.——knock2.——Copyright©2009.Allrightsreserved.SchoolofMechanical&AutomotiveEngineeringSSouthCChinaUUniversityofTTechnology1.2.3.1.2.3.Copyright©2009.Allrightsreserved.SchoolofMechanical&AutomotiveEngineeringSSouthCChinaUUniversityofTTechnology1.(Knock)(1)Copyright©2009.Allrightsreserved.SchoolofMechanical&AutomotiveEngineeringSSouthCChinaUUniversityofTTechnologyCopyright©2009.Allrightsreserved.SchoolofMechanical&AutomotiveEngineeringSSouthCChinaUUniversityofTTechnology(2)——Copyright©2009.Allrightsreserved.SchoolofMechanical&AutomotiveEngineeringSSouthCChinaUUniversityofTTechnology(3)13000~7000Hz23()4Copyright©2009.Allrightsreserved.SchoolofMechanical&AutomotiveEngineeringSSouthCChinaUUniversityofTTechnology(4)1)()2)3)4)5)()Copyright©2009.Allrightsreserved.SchoolofMechanical&AutomotiveEngineeringSSouthCChinaUUniversityofTTechnology(5)p/Copyright©2009.Allrightsreserved.SchoolofMechanical&AutomotiveEngineeringSSouthCChinaUUniversityofTTechnology(6)1.2.3.Copyright©2009.Allrightsreserved.SchoolofMechanical&AutomotiveEngineeringSSouthCChinaUUniversityofTTechnology1)1)2)2)3)3)4)4)a=0.8~0.95)5)(1)(2)(3)Copyright©2009.Allrightsreserved.SchoolofMechanical&AutomotiveEngineeringSSouthCChinaUUniversityofTTechnologya=0.8~0.9Copyright©2009.Allrightsreserved.SchoolofMechanical&AutomotiveEngineeringSSouthCChinaUUniversityofTTechnology(1)()(2)(3)0.40.70.5~0.6(4)Copyright©2009.Allrightsreserved.SchoolofMechanical&AutomotiveEngineeringSSouthCChinaUUniversityofTTechnology(7)t1t2tt11tt22t1t2Copyright©2009.Allrightsreserved.SchoolofMechanical&AutomotiveEngineeringSSouthCChinaUUniversityofTTechnology1)2)3)Copyright©2009.Allrightsreserved.SchoolofMechanical&AutomotiveEngineeringSSouthCChinaUUniversityofTTechnologyCopyright©2009.Allrightsreserved.SchoolofMechanical&AutomotiveEngineeringSSouthCChinaUUniversityofTTechnology2.(1)()()()Copyright©2009.Allrightsreserved.SchoolofMechanical&AutomotiveEngineerin