Amphibious pump

Abstract

An amphibious pump is provided including a wet type motor with coolant and an absorbing mechanism of the expansion of the coolant inside the motor chamber, dividing it into two chambers, at least one expansion joint between an internal chamber of the motor, hermetically closed, and an equalization inner chambers and a means to equalize the internal pressure for the pumped fluid. The electric motor is immersed m a cooling liquid, usually oil, in a chamber, and, the other camera is filled with the aqueous solution, which communicates with the outside through the equalizer assembly, which can, for example, comprise a rubber mask with micro holes, which allows the exchange of water between the outer chamber and the chamber of the motor.

1 . An amphibious pump, equipped with pressure equalization, comprising:
 at least one expansion joint between an internal chamber of a motor and an internal equalization chamber; and   means for equalizing internal pressure for pumped fluid.   
     
     
         2 . The amphibious pump according to  claim 1 , wherein the at least one expansion joint comprises a diaphragm. 
     
     
         3 . The amphibious pump according to  claim 1 , wherein the internal chamber of the motor comprises a hermetically sealed coolant. 
     
     
         4 . The amphibious pump according to  claim 1 , wherein the internal equalization chamber includes at least one pressure equalizing filter. 
     
     
         5 . The amphibious pump according to  claim 4 , wherein the at least one pressure equalizing filter comprises a rubber mask with micro holes, which allow exchange of water between an outer chamber and the internal equalization chamber.