Marine transmission assembly system
AssigneeAB Volvo Penta
InventorsKjell-Idar Borgersen, Lennart H. Brandt
Life of this patent
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Abstract
A reversing double cone clutch drive assembly for a boat comprising a horizontal input shaft, a vertical intermediate output shaft, a first housing provided with an opening in a side wall opposite to the input shaft and an opening in a bottom wall through which the lower end of said intermediate output shaft is exposed, and selectable gear transmission subassemblies attachable to such clutch drive assembly, each subassembly including a second housing with a generally horizontal wall for engaging such bottom wall, said second housing carrying a bearing which mounts an output shaft driven through gear means by said intermediate output shaft said housings being filled interiorly with lubricating oil, in heat exchange relationship with cooling water exterior of said housing.
Claims20
A reversing clutch drive assembly adapted for attachment thereto of alternative selected gear transmission subassemblies comprising a horizontal input shaft extending from an external input connection end to an opposite end, a first bevel gear wheel on said opposite end, a housing member having a horizontally extending hollow sleeve portion through which said shaft extends, an oil seal between said shaft and sleeve, a first bearing in said sleeve mounting said shaft and disposed between said seal and said gear wheel, a vertical intermediate shaft disposed in alignment with said horizontal shaft, two bevel gears mounted on said vertical intermediate shaft and rotatable with respect thereto, disposed respectively above and below and each in mesh with said first bevel gear wheel, clutch means for disengaging and selectively drivingly coupling the upper or the lower of said two bevel gears to said vertical intermediate shaft, a housing body portion connected to said housing member, second and third bearings within said body portion mounted on said vertical intermediate shaft, respectively above said upper bevel gear and below said lower bevel gear, said body portion being provided with a side opening opposite said housing member and a bottom opening below said third bearing, said vertical intermediate shaft extending below said lower bevel gear in said bottom opening and adapted for operative connection to gear transmission means for transmitting power selectively through said bottom opening or through said side opening.
A straight reducing gear transmission for a boat comprising a housing, a horizontal input shaft rotatably carried by and projecting forwardly from said housing, a first bevel gear fixed to said input shaft and disposed within said housing, a vertical intermediate shaft in said housing, upper and lower bevel clutch gears rotatably mounted on said intermediate shaft disposed respectively above and below said first bevel gear and in mesh therewith for rotation in respectively opposite directions, a respective bearing in said housing for each of said clutch gears, bearings for said intermediate shaft in each of said clutch gears, clutch means for disengaging and selectively drivingly coupling said upper or lower bevel clutch gears to said intermediate shaft, said housing having a downwardly disposed bottom opening being covered by a closure member;
- said intermediate shaft being accessible through said bottom opening, an inverted bevel gear affixed to the lower end of said intermediate shaft and supportedly attached to said housing with thrust bearing means, a bevel gear mounted on an output shaft in said housing in mesh with said inverted bevel gear, said output shaft being downwardly inclined and extending rearwardly through a rearward opening in said housing, opposite to said input shaft, thrust bearing means for said output shaft supportedly attached to said housing and disposed in said rearward opening thereof, said thrust bearing means comprising a thrust bearing collar surrounded by a water jacket with inlet and outlet conduits attached thereto, and an oil seal around said shaft at said rearward opening.
Dependencies are inferred from the claim text.