Design of Cam Profile Based on Miller-Cycle

Sheng Li Wei; Wu Qiang Long; Zhong Wang; Xian Yin Leng

doi:10.4028/www.scientific.net/AMM.43.588

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 43Design of Cam Profile Based on Miller-Cycle

Design of Cam Profile Based on Miller-Cycle

Abstract:

The necessity which high-order polynomials are used for optimization design of cam profile is analyzed in valve train of high-speed engines. Basing on the basic idea of Miller-cycle delayed intake valve closing time to reduce the compression ratio, this method is used for re-optimize design of the cam profile in CY4D47 diesel engine. The general method is given by the five-order polynomial. So, the improved cam profile equations can be obtained, then, the lift, velocity, acceleration and Jerk curves are got, lastly, the cam profile are drew by AutoCAD soft.

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Periodical:

Applied Mechanics and Materials (Volume 43)

Pages:

588-593

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.43.588

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Online since:

December 2010

Authors:

Sheng Li Wei, Wu Qiang Long, Zhong Wang, Xian Yin Leng

Keywords:

Cam Profile, High-Order Polynomial, Miller-Cycle, Valve Train

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References

[1] L.S. Yang: Internal Combustion Engine Design (China Agricultural Machinery Publisher , BeiJing1981).

Google Scholar

[2] H.J. Shang: Design and Calculation of The Valve Cam for Internal Combustion Engine (FuDan University Publisher , ShangHai 1998).

Google Scholar

[3] J.W. DAVID: Optional Design of High-speed Valve Train systems, SAE94250(1994).

Google Scholar

[4] B. SENDYKA: The Modifying of a Camshaft Profile to Decrease Acceleration and Jump of a Valve of a High-speed Combustion. SAE 930059(1993).

DOI: 10.4271/930059

Google Scholar

[5] R.F. ADEMAR: Procedure to Modification of a Camshaft Cam Lobe Profile. SAE 942407, (1994).

Google Scholar

[6] E. ROLAND: Advanced Optimization Techniques in Valve Train Design. SAE 982004, (1998).

Google Scholar

[7] G.Q. Fu, W.Z. Gao, X.L. Kang et al: Transactions of CSICE Vol. 19(2001).

Google Scholar

[8] R.H. Miller: Transactions of ASME Vol. 69(1947), p.453–457.

Google Scholar

[9] R.H. Miller, H.U. Lieberherr: The Miller Supercharging System for Diesel and Gas Engines Operating Characteristics, CIMAC, 1957, in: Proceedings of the 4th International Congress on Combustion Engines, Zurich, June 15–22, (1957), p.787–803.

Google Scholar

[10] Luo Ma-ji, J. Yu, Z.M. Yu, et: Equipment Manufacturing Technology Vol. 8(2008), pp.13-15.

Google Scholar

[11] L. Guo, C.M. Chu, J.Q. Chen: Chinese Internal Combustion Engine Engineering Vol. 26(2005).

Google Scholar

[12] Z.H. Zhou: Master Thesis in ShangHai Jiao Tong University Vol. 1(2006).

Google Scholar