Fluid moving system and an electric motor-pump unit therefor

Claim 1

AN ELECTRIC MOTOR-FAN UNIT INCLUDING A MOTOR SECTION AND A FAN SECTION WITH FAN HOUSING MEANS MOUNTED ON, AND HAVING A MAIN SUCTION AIR INLET REMOTE FROM, THE MOTOR SECTION, SAID UNIT ADAPTED FOR SAFE TEMPERATURE OPERATION DESPITE OBSTRUCTION OF SUCTION AIR FLOW TO SAID INLET, AND COMPRISING: FIRST AND SECOND MOTOR END BRACKET MEMBERS WITH GENERALLY HOLLOW BODY PORTIONS, BEING EACH SPANNED AT ONE END BY A RESPECTIVE INTEGRAL MOTOR SHAFT BEARING SUPPORTING STRUCTURE AND SECURED TOGETHER IN ALIGNED ENDWISE ABUTTING RELATION AT THEIR OTHER ENDS TO PROVIDE A MOTOR FRAME CIRCUMFERENTIALLY ENCLOSING A SUBSTANTIAL PART OF THE HEREINAFTER NAMED MOTOR STATOR; SAID FIRST MEMBER HAVING A FAN SECTION HOUSING MOUNTING INTEGRAL RIM PORTION EXTERNAL OF ITS SAID INTEGRAL STRUCTURE AND AT LEAST ONE MOTOR VENTILATING AIR PORT AXIALLY INWARD OF SAID RIM PORTION; SAID FAN-SECTION HOUSING MOUNTED ON SAID RIM PORTION; A FAN SECTION END BAFFLE FIXED ON THE OUTER END OF SAID FIRST MEMBER; A MOTOR ROTOR WITH SHAFT SUPPORTED AT OPPOSITE ENDS BY BEARING IN RESPECTIVE SAID INTEGRAL STRUCTURES AND AT ONE END THE SHAFT PROJECTING BEYOND SAID END BAFFLE FOR SUPPORTING AN IMPELLER IN THE FAN SECTION; A MOTOR STATOR SUPPORTED IN SAID FRAME; SAID END BAFFLE DEFINING WITH SAID FIRST MEMBER AN AIR FLOW SPACE IN COMMUNICATION WITH SAID PORT AND ADJACENT END REGIONS OF SAID ROTOR AND STATOR; MEANS INCLUDING AN AIR SHIELD CAP CONCENTRICALLY EXTERNALLY MOUNTED ON THE SAID SECOND MEMBER PROVIDING A SECOND VENTILATING AIR PORT; A MOTOR VENTILATING FAN ON THE OTHER END OF SAID SHAFT IN AN AIR FLOW SPACE BETWEEN SAID CAP AND STATOR; SAID STATOR DEFINING WITH SAID ROTOR AND SAID FRAME AIR