摘要:
An electric wet motor pump in which the rotor of the electric motor is supported within a container which is isolated from the stator. The arrangement of the components of the rotor assembly coupled with the thickness of the container wall provides accurate relative spacing between the rotor and the stator. The rotor components are assembled by a method which includes the use of a curable adhesive and ensures coaxiality between the shaft and the outside diameter of the container with consequent coaxiality of the rotor and the stator.
摘要:
A mechanical seal isolator is provided in a submergible pump installation for protecting a mechanical seal from well fluid. The mechanical seal, which prevents well fluid from passing along a shaft to an oil-filled electric motor, may be located at the top of an oil-containing motor protector which is positioned between the pump and the motor or at the top of the motor itself. The mechanical seal isolator is interposed between the seal to be protected and the pump and contains a fluid of greater density than the well fluid and the oil in the protector or the motor and of sufficient quantity to surround and extend over the mechanical seal under all operating conditions of the motor.
摘要:
This disclosure pertains to a submersible electric motor having an end bell member at one end and which is suspended from the end of a pipe. The end bell member serves the multiple functions of: closing the end of the motor, suspending the motor from a pipe, supporting a bearing of the motor, connecting liquid passages in the motor to the pipe, and supporting an electricl connection between the windings of the motor and a power cable contained within the pipe. The end bell member may readily be disconnected from the pipe for replacement of the motor while keeping the remainder of the motor intact. Such disassembly automatically breaks the liquid and electrical connections between the respective parts. Further, the end bell member may be disconnected from the remainder of the motor for servicing the motor.
摘要:
AN ELECTRICAL MOTOR AND PUMP UNI FOR MOUNTING IN AN AUTOMOTIVE OR OTHER COMBUSTION-ENGINE FUEL TANK TO PUMP LIQUID FUEL TO THE ENGINE. A CIRCULAR REGENERATIVE FUEL PUMP HAS ITS ROTOR ON THE ARMATURE SHAFT OF A PERMANENTMAGNET MOTOR MOUNTED IN A COMMON CYLINDRICAL HOUSING. ROTOR BLADE SPACING FOLLOWS AN ORDERLY MATHEMATICAL PROGRESSION. THE FERRITE MOTOR FIEL MAGNET IS A RELATIVELY THIN-WALLED CYLINDIRCAL HAVING LARGE AIR-GAP CLEARANCE FROM THE ARMATURE AND LYING AGAINST THE CYLINDRICAL HOUSING WHICH FORMS A RETURN FLUX PATH. FULL PUMP DELIVERY FLOW POASSES THROUGH THE LARGE AIR GAP, AND HYDRAULIC GAIN FROM IMPROVED FLOW THROUGH SUCH AIR GAP OFFSETS ANY ELECTRICAL LOSS. THE USE OF A PERIPHERAL THIN-WALL MAGNET PROVIDES OPEN INTERIOR SPACE WHICH PERMITS A LARGE COMMUTATOR AND BRUSH CONTACT AREA.
摘要:
A power pump including a dry-operating drive motor mounted on the pump housing and connected to a pump impeller, wherein the output shaft includes a seal consisting of a slipring and a contrarotating ring which is coupled to an elastic noise damper on the pump housing.
摘要:
This disclosure deals with a submersible electric motor including a connector member at one end thereof. The connector member is constructed to serve the multiple functions of an end section for the motor, connecting means between the motor and a pipe for suspending the motor, the connecting means further forming a liquid connection between the pipe and liquid passages formed in the motor, and an electrical connection between the motor winding and a power cable. The remainder of the motor may readily be disconnected from the connector member, for servicing or replacement, thereby automatically breaking the above connections.