Dual-Pump Hydraulic Hybrid Excavator with Combined Common Pressure Rail and Valve-Controlled System


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To solve the low efficiency problem of hydraulic excavator, one type of Dual-Pump hydraulic architecture with combined Common Pressure Rail (CPR) and traditional valve controlled system is presented. Firstly, we analyze the energy consumption of excavator during one cycle to know the energy distribution among each actuator. Then, the Dual-Pump system is explained to design an easy to modify, cost efficient hydraulic hybrid excavator. Moreover, we focus on the boom system and construct the model. Finally, a simulation is created and the results illustrate that the proposed system can satisfy the design requirement.



Edited by:

Xiong Zhou and Zhenzhen Lei




W. Shen and J. H. Jiang, "Dual-Pump Hydraulic Hybrid Excavator with Combined Common Pressure Rail and Valve-Controlled System", Applied Mechanics and Materials, Vol. 233, pp. 62-65, 2012

Online since:

November 2012




[1] X. H. Xie, L. Zhou and D. Q. Zhang, Present situation of technical research development of hydraulic excavators, Construction Machinery and Equipment. 38 (2007) 54-57.

[2] Kagoshima M, Komiyama M and Nanjo T, Development of New Hybrid Excavator, Kobelco Technology Review. 27 (2007) 39-42.

[3] P. A. J. Achten, G. E. M. Vael and F. Zhao. The Innas Hydraulic Transformer-The Key to the Hydrostatic Common Pressure Rail, SAE. 2000-01-256 , (2000).

DOI: https://doi.org/10.4271/2000-01-2561

[4] P. A. J. Achten, Titus van den Brink and Johan van den Oever, Dedicated Design of the HT, The 3rd International Fluid Power Conference, Aachen, Germany (2002) 233-240.

[5] S. Hiroki, I. Shigeru, K. Eitaro. Study on hybrid vehicle using constant pressure hydraulic system with flywheel for energy storage. SAE Paper 2004-01-3064, (2004).

DOI: https://doi.org/10.4271/2004-01-3064

[6] H. Y. Lu, J. H. Jiang, W. G. Wang and D. Wang, Hydraulic transformer driving hydraulic cylinder based on constant-pressure hydraulic rail system, Journal of Jilin University(Engineering and Technology Edition). 39 (2009) 885-890.

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