This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Low Pumping Loss Hydraulic Retarder with Helium Circulation System
Technical Paper
2015-01-2801
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
The hydraulic retarder, an important auxiliary brake, has been widely used in heavy vehicles. Under the non-braking working condition, the air resistance torque in the working chamber, which is formed by the rotor of hydraulic retarder's stirring the air, causes pumping loss. This research designs a new type of hydraulic retarder, whose helium is charged into working chamber through closed loop gas system under non-braking working condition, can reduce the parasitic power loss of transmission system. First, under non-braking working condition, the resistance characteristics are analyzed on the base of hydraulic retarder pumping model; then, considering some parameters, such as the volume of chambers and the initial gas pressure, the working chamber gas charge model is established, and the transient gas charge characteristics are also analyzed under non-braking working condition. Finally, the helium circulation model is established, and the impact of the circulation system parameters on the retarder's oil filling time is analyzed. The results show that the retarder's helium charge system can reduce the pumping loss by more than 70% comparing with traditional hydraulic retarder, while the circulation system can achieve a 3% working chamber oil charge time reduction and raise the response rate of retarder.
Recommended Content
Technical Paper | High Pressure Gear Pumps |
Technical Paper | Enhanced Air Turbine Starter Clutch Design |
Technical Paper | Simultaneous Computation of the External Flow around a Car Body and the Internal Flow Through its Engine Compartment |
Authors
- Yuandong Liu - Wuhan University of Technology
- Gangfeng Tan - Wuhan University of Technology
- Xuexun Guo - Wuhan University of Technology
- Li Zhou - Wuhan University of Technology
- Wenbin Liu - Wuhan University of Technology
- Zhiqiang Hu - Wuhan University of Technology
- Kangping Ji - Wuhan University of Technology
- Binyu Mei - Wuhan University of Technology
Citation
Liu, Y., Tan, G., Guo, X., Zhou, L. et al., "Low Pumping Loss Hydraulic Retarder with Helium Circulation System," SAE Technical Paper 2015-01-2801, 2015, https://doi.org/10.4271/2015-01-2801.Also In
References
- Shi Kai Nan Auxiliary braking performance of vehicle hydraulic retarder [D] Xi An Chang'an University 2009
- Cao Yu Ping . Yan Xiang An Pneumatic Drive and Control [M] Tian Jin Tianjin University Press 2010
- Huang Su Yi , Liu Wei Higher Heat Transfer Engineering [M] Bei Jing China Electric Power Press 2006
- Bergman TL , Lavine AS , Incropera FP , Dewitt DP Fundamentals of heat and mass transfer 7th USA John Wiley & Sons 2011
- Ghazi M , Ahmadi P , Sotoodeh AF , Taherkhani A. Modeling and thermoeconomic optimization of heat recovery heat exchangers using a multimodal genetic algorithm Energy Convers Manage 2012 58 149 56
- Lemmon E , Huber M , Mclinden M NIST reference fluid ther modynamic and transport properties REFPROP, version 8.0 The National Institute of Standards and Technology (NIST) 2007
- Li Xue Song Optimization methods research of vehicle hydraulic retarder based on the analysis of the unsteady flow field [D] Jilin University 2010
- Ministry of Environmental Protection The reference values of useful life and mileage of the vehicle summary tables 2013
- Zhang Cong Zhu Chinese Environmental Impact Assessment Course [M] 2002 7-80163-397-0