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Journal of Zhejiang University SCIENCE A 2001 Vol.2 No.1 P.60-65

http://doi.org/10.1631/jzus.2001.0060


EXPERIMENTAL STUDY ON PREMIX COMBUSTION AT ISOSCELES TRIANGLE TYPE RATE OF HEAT RELEASE FOR SQUISH TYPE COMBUSTION CHAMBER


Author(s):  YANG Zhen-zhong, LI Jing-ding, HUA Xiang-yang

Affiliation(s):  Dept.of Energy Engineering,Zhejiang University,Hangzhou 310027,China; more

Corresponding email(s): 

Key Words:  premix combustion, isosceles triangle, oil film, conical spray, squish combustion chamber


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YANG Zhen-zhong, LI Jing-ding, HUA Xiang-yang. EXPERIMENTAL STUDY ON PREMIX COMBUSTION AT ISOSCELES TRIANGLE TYPE RATE OF HEAT RELEASE FOR SQUISH TYPE COMBUSTION CHAMBER[J]. Journal of Zhejiang University Science A, 2001, 2(1): 60-65.

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Abstract: 
This paper presents a theory on premix fuel combustion at near isosceles triangle type rate of heat release, describes the measures taken for the combustion system, points out its many theoretical advantages, and that it can solve effectively the problems of rough running, fuel consumption and exhaust emission. Two squish lip type combustion chambers are designed to match separately with multiple holes injector and conical spray type injector in order to achieve premix combustion at near isosceles triangle type rate of heat release. Experimental studies on two single cylinder diesel engines showed that premix combustion at isosceles triangle type rate of heat release resulted in longer ignition delay period, larger amount of fuel injected into cylinder during the ignition delay period, lower maximum pressure,better fuel economy, and better exhaust emission.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article

Reference

[1] Hu,G.D.,Xu,F.,Song,Z.H.,1992.Premix film type compression ignition combustion.SAE Paper 920694.

[2] Yoshinaka,T.,Nakagome,K.,Niimure,K.,1996.Emission characteristics of premixed lean diesel combustion with extremely early stage fuel injection.SAE Trans. 105(4):938-947.

[3] Nakagome,K.,Shimazaki,N.,Niimure,K.,1997.Emission characteristics of premixed lean diesel combustion engine.SAE Trans..106(3):1528-1536.

[4] Takeshi,S.,Yasuhiro,D.,Noboru,U.,1986.Effects of combustion chamber geometry on diesel combustion.SAE paper.861186.

[5] Zhang,L.,Ueda,T.,Takatsuki,T.,et al.,1995.A study of the effects of chamber geometries on flame behavior in a DI diesel engine.SAE Trans., 104(3):2399-2407.

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