GROUPE PROPULSEUR MARIN A HELICES JUMELEES

GROUPE PROPULSEUR MARIN A HELICES JUMELEES

A marine drive (10) has two counter-rotating surface operating propellers (12, 14). Inner and outer concentric counter-rotating propeller shafts (40, 42) are supported by a spool assembly (38) locked and retained against rotation and against axial movement in the lower horizontal bore (28) in the to...

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Bibliographische Detailangaben
Hauptverfasser: EICK EDWARD C, WERONKE ROBERT B, MAGEE PHILLIP D, MEISENBURG GARY L, MIXON CHARLES M
Format: Patent
Sprache:fre
Schlagworte:
MARINE PROPULSION OR STEERING
PERFORMING OPERATIONS
RELATED EQUIPMENT
SHIPS OR OTHER WATERBORNE VESSELS
TRANSPORTING
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Beschreibung
Zusammenfassung:A marine drive (10) has two counter-rotating surface operating propellers (12, 14). Inner and outer concentric counter-rotating propeller shafts (40, 42) are supported by a spool assembly (38) locked and retained against rotation and against axial movement in the lower horizontal bore (28) in the torpedo (34) of the drive housing (26) by axially spaced left and right hand threads (44 and 46). A thrust bearing assembly (98) transfers thrust from the outer propeller shaft to the inner propeller shaft during rotation of the propeller shafts in opposite axial direction and is axially located between fore and aft driven gears (76 and 78). Propeller shaft sealing and bearing structure, and propeller self-centering mounting structure is provided.