marine propulsion engines epa meeting 02/14/07. marine propulsion engines three primary types three...
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![Page 1: Marine Propulsion Engines EPA Meeting 02/14/07. Marine Propulsion Engines Three Primary Types Three Primary Types - Inboard (Engine and Transmission inside](https://reader035.vdocument.in/reader035/viewer/2022062417/55189b83550346881f8b4650/html5/thumbnails/1.jpg)
Marine Propulsion EnginesMarine Propulsion Engines
EPA MeetingEPA Meeting
02/14/0702/14/07
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Marine Propulsion EnginesMarine Propulsion Engines
• Three Primary TypesThree Primary Types- - InboardInboard (Engine and (Engine and
Transmission Transmission inside boat)inside boat)-- SterndriveSterndrive (Engine inside boat, (Engine inside boat,
Transmission outside boat)Transmission outside boat)-- OutboardOutboard (Engine and (Engine and
Transmission outside boat, Transmission outside boat, hung hung
on stern)on stern)
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Marine Propulsion EnginesMarine Propulsion EnginesInboard
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Marine Propulsion EnginesMarine Propulsion EnginesSterndrive
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Marine Propulsion EnginesMarine Propulsion EnginesOutboard
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Marine Propulsion EnginesMarine Propulsion Engines
• Two Primary FuelsTwo Primary Fuels
- - GasolineGasoline (Outboard, Inboard, (Outboard, Inboard, Sterndrive)Sterndrive)
-- DieselDiesel (Inboard, Sterndrive) (Inboard, Sterndrive)
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Marine Propulsion EnginesMarine Propulsion Engines
• USCG RequirementsUSCG Requirements
- - No exposed surface of the No exposed surface of the engine engine may have a surface may have a surface temperature temperature greater than 200 greater than 200 degrees Fdegrees F
• Requires Water Cooled ExhaustRequires Water Cooled Exhaust
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Marine Propulsion EnginesMarine Propulsion Engines
• Cooling SystemsCooling Systems- - Raw Water CooledRaw Water Cooled (water from (water from
lake/ocean is pumped through lake/ocean is pumped through the the engine, mixed with the exhaust, engine, mixed with the exhaust, and and discharges with the exhaust)discharges with the exhaust)
- - Closed Cooling Closed Cooling (water from (water from lake/ocean is pumped through a heat lake/ocean is pumped through a heat
exchanger, mixed with the exchanger, mixed with the exhaust, and exhaust, and discharges with the discharges with the exhaust)exhaust)
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Marine Propulsion EnginesMarine Propulsion EnginesCooling System
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Marine Propulsion EnginesMarine Propulsion Engines
• Exhaust EmissionsExhaust Emissions- - Exhaust Emissions are almost Exhaust Emissions are almost
entirely gaseous emissionsentirely gaseous emissions
-- Exhaust Emissions bubble out of the Exhaust Emissions bubble out of the water quickly (less than 30 water quickly (less than 30
seconds)seconds)
- - EPA and CARB regulate marine EPA and CARB regulate marine engineengine exhaust emissions as an exhaust emissions as an air pollution air pollution sourcesource
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Marine Propulsion EnginesMarine Propulsion Engines
Questions????Questions????