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Design of a Buoyancy Engine for Deep Sea Gliders
Author(s): 
Pages: 9-14
Year: Issue:  2
Journal: Ocean Technology

Keyword:  underwater gliderprofiling floatmicro axial piston pumphigh-pressure buoyancy engine;
Abstract: The high-pressure buoyancy engine with the micro axial piston pump as its core functions as a key driving system for underwater gliders and profiling floats operating in a depth of over 1 000 m. This paper firstly introduces the prototypes of the buoyancy driving systems applied in the profiling platforms and their applications, before taking the 1 000-m rated underwater glider for instance to systematically illustrate the working principles and design approaches of its high-pressure buoyancy engine, as well as the critical technologies such as measuring pumping oil volume, avoiding pump inlet air lock and keeping pump piston clearance fit. The design and fabrication of a high-precision, high-efficiency and reliable buoyancy engine can greatly press ahead with the development of the profiling platforms for marine monitoring in China.
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