Readily-removable floating bushing pump construction
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United States of America Patent
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-
Jul 11, 1989
Issued Date -
N/A
app pub date -
Jul 19, 1985
filing date -
Aug 8, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A rotary pump has a block with inlet and outlet ducts and ports. A pump housing forming a pump cavity and accommodating working means of the pump, e.g., gears, is located on one side of the pump block, whereas drive means such as a magnetic coupling are placed on the other side of the block. In the case of a gear pump, the driving gear is connected to the drive magnet of the coupling through a drive shaft which passes through the axial bore in the block. The drive gear meshes with a driven gear which is mounted on a second shaft, also supported in bushings in the block. One set of ends of the shafts extends outside the pump housing and are inserted into bushings loosely fitted in recesses of a bearing support plate. This plate is attached to the block by removable screws extending through holes in the supporting plate and pump housing. The arrangement described makes it possible to replace worn parts of the pump, such as gears, shafts and bushings in a matter of minutes without the necessity of disconnecting the pump block and any piping or electrical connections to the motor.
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