Breathing gas pump apparatus for divers

Details Breathing gas pump apparatus for divers Breathing gas pump apparatus for divers

F - Mech Eng,Light,Heat,Weapons

04

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230/70

F04B 27/04 (2006.01) B63C 11/18 (2006.01) F04B 27/02 (2006.01) F04B 35/04 (2006.01) F04B 41/06 (2006.01)

Patent

CA 1081189

BREATHING GAS PUMP APPARATUS FOR DIVERS ABSTRACT OF THE DISCLOSURE Breathing gas pumping apparatus for divers, with four or more fan-cooled supply piston pump cylinders arranged to discharge breathing gas in mutually out-of- phase relationship into a diver breathing gas supply header, together with four or more fan-cooled return piston pump cylinders arranged to withdraw breathing gas from a diver breathing gas return header in mutually out- of-phase relationship. The cylinders extend radially out- ward from a motor drive axis along which they are dis- tributed, and the headers are nested between projecting cylinder ends. The array is enclosed as a pod, by a cylindrical shell having cooling fins for transfer of heat from pump cooling gas circulating within the shell to the ambient liquid without.

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