Patent ID: 7056173

Claim:
A heater for a water cooled two cycle marine engine, comprising: an exhaust expansion chamber operably coupled with a two cycle marine engine, and wherein the two cycle marine engine produces a source of heated water; a heater coupled in fluid flowing relation relative to the exhaust expansion chamber, and which receives the source of heated water; a flow restrictor coupled in fluid flowing relation relative to both the heater and the exhaust expansion chamber, and which delays the delivery of heated water from the exhaust expansion chamber to the heater to increase the temperature of the water; a base assembly coupled to the two cycle marine engine and which withdraws water from a continuous source of water, and which delivers the continuous source of water to the two cycle marine engine to remove heat energy generated by the two cycle marine engine during operation, and wherein the heat energy generated by the two cycle marine engine during operation produces the source of heated water, and wherein the exhaust expansion chamber is operably coupled to the base assembly; and a conduit coupling the exhaust expansion chamber in fluid flowing relation relative to the base assembly, and wherein the heater is coupled in fluid flowing relation relative to the conduit, and is positioned downstream of the exhaust expansion chamber, and upstream of the base assembly, and wherein the flow restrictor is positioned in fluid metering relation therealong the conduit, and is positioned downstream of the base assembly and upstream relative to the heater.