Rotary expansible chamber devices – With mechanical sealing – Axially movable end wall or end wall portion
Patent
1981-02-17
1983-08-23
Myhre, Charles J.
Rotary expansible chamber devices
With mechanical sealing
Axially movable end wall or end wall portion
418205, 418206, 418132, F04C 1500, F01C 1908
Patent
active
044001460
ABSTRACT:
A gear machine, such as a gear pump or gear motor, has a housing in a chamber of which there are journalled two gears which mesh with one another. One of the gears is mounted on a drive shaft the end of which is extended outwardly from the housing. The housing is closed at one side thereof with a cover having a stepped bore for receiving the end portion of the drive shaft. The cover is formed with a circumferential projection concentric with the drive shaft and adapted for centering the cover relative to an external element to be coupled with the gear machine. The stepped bore provided in the cover forms a chamber in which a centering ring with a certain radial play is positioned, which centering ring surrounds the drive shaft. A sealing ring is also positioned in the chamber formed in the stepped bore, which sealing ring sealingly closes the housing. The centering ring provides for reliable aligning of the gear machine to the external element adapted to be coupled with the machine.
Dworak Wilhelm
Grabow Kurt
Mayer Siegfried
Muller Karl-Heinz
Talmon Wolfgang
Cross E. Rollins
Myhre Charles J.
Robert & Bosch GmbH
Striker Michael J.
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