Effects of oil channels and oil flow rate on cooling performance of closed circuit axial piston transmission
Closed circuit axial piston transmission (CCAPT) has been implemented in the field of hydraulic transmission. As a result of frictional loss and leakage loss, the temperature rise is unavoidable, that can shorten the service life of crucial components. Based on the method of computational fluid dyna...
Main Authors: | , , , |
---|---|
Format: | Article |
Language: | English |
Published: |
Elsevier
2021-12-01
|
Series: | Case Studies in Thermal Engineering |
Subjects: | |
Online Access: | http://www.sciencedirect.com/science/article/pii/S2214157X21005384 |
id |
doaj-afc32a25013b4842977488ce74ea3f8f |
---|---|
record_format |
Article |
spelling |
doaj-afc32a25013b4842977488ce74ea3f8f2021-09-09T04:27:55ZengElsevierCase Studies in Thermal Engineering2214-157X2021-12-0128101375Effects of oil channels and oil flow rate on cooling performance of closed circuit axial piston transmissionLong-jie Yu0Chen Yang1Junhui Zhang2Jin-yuan Qian3Institute of Process Equipment, College of Energy Engineering, Zhejiang University, Hangzhou, 310027, PR ChinaInstitute of Process Equipment, College of Energy Engineering, Zhejiang University, Hangzhou, 310027, PR ChinaState Key Laboratory of Fluid Power and Mechatronic Systems, Zhejiang University, Hangzhou, ChinaInstitute of Process Equipment, College of Energy Engineering, Zhejiang University, Hangzhou, 310027, PR China; State Key Laboratory of Fluid Power and Mechatronic Systems, Zhejiang University, Hangzhou, China; Corresponding author. Institute of Process Equipment, College of Energy Engineering, Zhejiang University, Hangzhou, 310027, PR China.Closed circuit axial piston transmission (CCAPT) has been implemented in the field of hydraulic transmission. As a result of frictional loss and leakage loss, the temperature rise is unavoidable, that can shorten the service life of crucial components. Based on the method of computational fluid dynamics and liquid-solid mathematical coupling, structure optimization of CCAPT is investigated in the paper to decrease temperature. The influence of the position of oil inlet and outlet channels, oil flow rate and the filling-oil channels type is analyzed, meanwhile the temperature distribution and flow streamline are monitored. The results indicate that the higher inlet velocity may give rise to a better cooling performance of CCAPT but there is an optimal upper limit of inlet velocity, which is 3.5 m/s in this study. Besides, cooling performance and reducing temperature are obvious when oil inlet and outlet channels are set close to both sides of CCAPT. In addition, axisymmetric filling-oil channels have a slightly better effect on cooling performance but the cooling performance is not obvious. The paper can provide design reference for reasonable selection of oil channels and oil flow rate.http://www.sciencedirect.com/science/article/pii/S2214157X21005384Cooling structure optimizationClosed circuit axial piston transmissionOil channelsOil flow rate: cooling performance |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Long-jie Yu Chen Yang Junhui Zhang Jin-yuan Qian |
spellingShingle |
Long-jie Yu Chen Yang Junhui Zhang Jin-yuan Qian Effects of oil channels and oil flow rate on cooling performance of closed circuit axial piston transmission Case Studies in Thermal Engineering Cooling structure optimization Closed circuit axial piston transmission Oil channels Oil flow rate: cooling performance |
author_facet |
Long-jie Yu Chen Yang Junhui Zhang Jin-yuan Qian |
author_sort |
Long-jie Yu |
title |
Effects of oil channels and oil flow rate on cooling performance of closed circuit axial piston transmission |
title_short |
Effects of oil channels and oil flow rate on cooling performance of closed circuit axial piston transmission |
title_full |
Effects of oil channels and oil flow rate on cooling performance of closed circuit axial piston transmission |
title_fullStr |
Effects of oil channels and oil flow rate on cooling performance of closed circuit axial piston transmission |
title_full_unstemmed |
Effects of oil channels and oil flow rate on cooling performance of closed circuit axial piston transmission |
title_sort |
effects of oil channels and oil flow rate on cooling performance of closed circuit axial piston transmission |
publisher |
Elsevier |
series |
Case Studies in Thermal Engineering |
issn |
2214-157X |
publishDate |
2021-12-01 |
description |
Closed circuit axial piston transmission (CCAPT) has been implemented in the field of hydraulic transmission. As a result of frictional loss and leakage loss, the temperature rise is unavoidable, that can shorten the service life of crucial components. Based on the method of computational fluid dynamics and liquid-solid mathematical coupling, structure optimization of CCAPT is investigated in the paper to decrease temperature. The influence of the position of oil inlet and outlet channels, oil flow rate and the filling-oil channels type is analyzed, meanwhile the temperature distribution and flow streamline are monitored. The results indicate that the higher inlet velocity may give rise to a better cooling performance of CCAPT but there is an optimal upper limit of inlet velocity, which is 3.5 m/s in this study. Besides, cooling performance and reducing temperature are obvious when oil inlet and outlet channels are set close to both sides of CCAPT. In addition, axisymmetric filling-oil channels have a slightly better effect on cooling performance but the cooling performance is not obvious. The paper can provide design reference for reasonable selection of oil channels and oil flow rate. |
topic |
Cooling structure optimization Closed circuit axial piston transmission Oil channels Oil flow rate: cooling performance |
url |
http://www.sciencedirect.com/science/article/pii/S2214157X21005384 |
work_keys_str_mv |
AT longjieyu effectsofoilchannelsandoilflowrateoncoolingperformanceofclosedcircuitaxialpistontransmission AT chenyang effectsofoilchannelsandoilflowrateoncoolingperformanceofclosedcircuitaxialpistontransmission AT junhuizhang effectsofoilchannelsandoilflowrateoncoolingperformanceofclosedcircuitaxialpistontransmission AT jinyuanqian effectsofoilchannelsandoilflowrateoncoolingperformanceofclosedcircuitaxialpistontransmission |
_version_ |
1717761527162863616 |