WATERJET FOR OUTBOARD ENGINE Russian patent published in 2010 - IPC B63H11/14 B63H11/12 B63H11/02 

FIELD: transport.

SUBSTANCE: proposed water jet comprises: housing 1 with horizontal water duct 2 and exhaust gas ducts 3. Vertical 3 and horizontal 5 shafts arranged in the housing are articulated by gearing 7. Waterjet comprises also impeller 7 fitted on free extension of shaft 5, water intake branch pipe 8 arranged at the bottom of housing 1 and top face 9 intended for communication of Waterjet bottom with engine deadwood bottom part. Besides Waterjet incorporates pump 10 to engine cooling system water feed and gearshift mechanism 11 with link 12. Impeller 7 comprises four blades 13 secured on hub 14. Said hub has axial channels 15 to end in exhaust gas channels 3. Every blade 13 features monotonously increasing thickness from front edge 16 to rear edge 17.

EFFECT: higher reliability of operation nearby water surface.

3 dwg