| http://www.w3.org/ns/prov#value | - As an example of an embodiment that is particularly useful, as an alternative to using a motor to drive pump 10, motive power for rotating input shaft 32 of pump 10 may be provided by flowing a first fluid under pressure from a first fluid source in the above configuration through upper port 24, which alternatingly powers the expansion of chambers 301 and 302 which in turn rotates primary vane 50
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