B - Operations – Transporting – 63 – H
Patent
B - Operations, Transporting
63
H
115/4
B63H 5/12 (1990.01)
Patent
CA 1333858
Disclosed herein is a stern drive unit comprising an engine including a coolant jacket and an exhaust port, an exhaust-gas discharge system including an exhaust gas manifold communicating with the exhaust port, a high-rise elbow communicating with the exhaust gas manifold, and an exhaust pipe communicating with the high-rise elbow and adapted to convey exhaust gas to an overboard discharge, a high-rise elbow and exhaust gas manifold coolant jacket surrounding the exhaust gas manifold and at least partially surrounding the high-rise elbow and communicating with the exhaust pipe for discharge of coolant from the high-rise elbow and exhaust gas manifold coolant jacket and through the exhaust pipe to an overboard discharge, which high-rise elbow and exhaust gas manifold coolant jacket includes a coolant discharge surface over which coolant is discharged from the high-rise elbow and exhaust gas manifold coolant jacket for flow to the exhaust pipe, a coolant conduit communicating between the engine coolant jacket and the high-rise elbow and exhaust gas manifold coolant jacket and including a portion extending at least as high as the discharge surface of the high-rise elbow and exhaust gas manifold coolant jacket and over which coolant flows, and a supply conduit for supplying coolant to the engine coolant jacket in response to engine operation.
611532
Ferguson Arthur R.
Rose Edgar
Outboard Marine Corporation
Smart & Biggar
LandOfFree
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