Double seal pump with integral accumulator
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United States of America Patent
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May 2, 2017
Grant Date -
Oct 22, 2015
app pub date -
Apr 21, 2014
filing date -
Apr 21, 2014
priority date (Note) -
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Abstract
A double seal pump assembly is provided and comprises a pump housing having an inlet and an outlet. An impeller is in communication with the inlet and outlet. The impeller includes an impeller shaft extending outwardly from the housing. The impeller shaft is adapted to engage a drive shaft of a motor. A housing adapter is mounted onto the housing at a first seal and is configured to secure the impeller to the housing. A motor adapter is mounted to the housing adapter at a second seal thereby defining a cavity therebetween. The motor adapter is configured to mount the motor and the cavity is configured to be filled with a barrier fluid. An accumulator is in fluid communication with the cavity and is adapted to hold a reserve barrier fluid so as to maintain barrier fluid volume and pressure within the cavity.
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