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Journal of Zhejiang University SCIENCE A
ISSN 1673-565X(Print), 1862-1775(Online), Monthly
2011 Vol.12 No.4 P.301-309
Output speed and flow of double-acting double-stator multi-pumps and multi-motors
Abstract: The primary focus of this study was to investigate a series of novel motors and pumps, based on a new type of structure called double-stator. The double-stator structure can be used as pump or motor just based on the application requirements. A certain amount of pumps or motors can be formed in one shell, and these sub-pumps or sub-motors can work alone or be combined without influence on each other. So this kind of double-stator pump (motor) is called a multi-pump (multi-motor). Through the analysis of multifarious connection modes of the double-acting double-stator multi-pumps and multi-motors, the mathematical expressions of the output flow rate and the rotational speed are acquired. The results indicate that a quantity of different flow rates can be provided by one fixed-displacement multi-pump under the condition of unalterable driven speed by electromotor. Likewise, when supplied by settled input flow, without complex variable mechanism, the functions of double-speed, multiple-speed, and even differential connection can be obtained by employing the use of a double-stator multi-motor. The novel hydraulic transmission is made of such a double-stator multi-pump and multi-motor, and has broad application prospects.
Key words: Multi-pumps, Multi-motors, Flow rate, Rotational speed, Hydraulic transmission, Differential motor
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Open peer comments: Debate/Discuss/Question/Opinion
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DOI:
10.1631/jzus.A1000405
CLC number:
TH137
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On-line Access:
2011-04-11
Received:
2010-09-14
Revision Accepted:
2011-01-03
Crosschecked:
2011-03-17