Cowl assembly with water resistant air intake duct and sealing

Details Cowl assembly with water resistant air intake duct and sealing Cowl assembly with water resistant air intake duct and sealing

1988-12-06

1989-08-29

Cross, E. Rollins

Internal-combustion engines

Frame construction

Horizontal cylinder

123198E, 440 77, 440 88, F02F 700

Patent

active

048607037

ABSTRACT:
An outboard marine motor housed by a cowl assembly having an upper cowl section and a lower cowl section includes various features for improving the structural integrity of the cowl assembly and for providing a water-resistant seal at the joint between the cowl sections and at various points of entry of cables and other mechanical devices. An improved air intake duct prevents the entry of water into the interior cavity of the cowl assembly. The air intake duct is disposed in an air intake opening provided in the top rear portion of the upper cowl section. The air intake duct includes a bottom wall, a pair of upstanding side walls connected thereto, and an upstanding back wall extending between the side walls. The top wall has an upwardly facing opening which forms an air inlet for allowing air to pass into the interior of the cowl assembly, to provide combustion air for the engine of the outboard motor. The air intake duct provides an air flow path whereby air flows forwardly toward the back wall and is then deflected upward to pass through the air inlet in the top wall. Any moisture contained within the air is trapped and prevented from entering the cavity due to the upward deflection of the air.

REFERENCES:
patent: 4403971 (1983-09-01), Kobayashi
patent: 4571193 (1986-02-01), Takada et al.
patent: 4734070 (1988-03-01), Mondek

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