Adapter plate, heat shield, and method for thermally isolating a mount coupled to an adapter plate

摘要

An outboard motor adapter plate couples a marine engine to a driveshaft housing, and includes an upper rim configured to be coupled to a lower surface of a cylinder block of the engine. A lower rim of the adapter plate is configured to be coupled to an upper surface of a sump located in the driveshaft housing. A wall defines a passageway having an inner perimetral surface, and the inner perimetral surface extends from the upper rim to the lower rim. A mounting area is configured for coupling a mount to the adapter plate. A shield covers at least a portion of the inner perimetral surface adjacent the mounting area, so as to at least partially thermally isolate the mount from heated fluid that drains from the cylinder block, through the passageway, and into the sump. A method and a shield for thermal isolation are also described.

主权项

1. An outboard motor adapter plate for coupling a marine engine to a driveshaft housing, the adapter plate comprising:
an upper rim configured to be coupled to a lower surface of a cylinder block of the engine; a lower rim configured to be coupled to an upper surface of a sump located in the driveshaft housing; a wall defining a passageway having an inner perimetral surface, the inner perimetral surface extending from the upper rim to the lower rim; a mounting area configured for coupling a mount to the adapter plate; and a shield that covers at least a portion of the inner perimetral surface adjacent the mounting area, so as to at least partially thermally isolate the mount from heated fluid that drains from the cylinder block, through the passageway, and into the sump.