Rotary pump

DETAILED DESCRIPTION OF THE INVENTION FIG.
1 depicts the preferred embodiment of the pump of the instant invention.
The pump is comprised of three sections: the impeller section 1, the coupling section 2 and the driving section 3.
The impeller section 1 incorporates an impeller housing 4 that defines a pumping chamber 28 through which fluid is pumped.
There is at least one inlet 5 and at least one outlet 6 within the impeller housing 4 through which fluid can enter and exit, respectively.
Within the impeller housing 4 is an impeller 7 which is mounted such that it can be rotated when the impeller shaft 8 is rotated.
The impeller section 1 can also include seals 19 for preventing fluid from leaving the pumping chamber 28.
The impeller section 1 could also incorporate bearings to aid the rotation of the impeller shaft 8, although none are shown in FIG.
1.
The coupling section 2 incorporates a coupling housing 14 in which a coupling shaft 12 is mounted such that it can be rotated.
The coupling shaft 12 is connected at one end to a first magnet 13 such that when the first magnet 13 is rotated, the coupling shaft 12 is rotated.
The coupling section 2 can also include seals 19 for preventing fluid from entering portions of the coupling section 2 or preventing lubricating or cooling fluid from escaping into the impeller section 1.
Rotation of the coupling shaft 12 is assisted by bearings 30, although such assistance is not a required component of a pump of the instant invention.
The drive section 3 incorporates a drive housing 15 in which a drive shaft 17 is rotatably mounted.
The drive shaft 17 is attached at one end to a second magnet 16 such that when the drive shaft 17 is rotated, the second magnet 16 is rotated.
Rotation of the drive shaft 17 is assisted by bearings 30, although such assistance is not a required component of a pump of the instant invention.
The drive section 3 can also include seals 19 to keep lubricating and cooling fluids in their proper place.
The drive shaft 17 is connected to a motor 18 that rotates the drive shaft 17