Marine propulsion – Means for accomodating or moving engine fluids – Means for handling exhaust gas
Patent
1999-08-09
2000-01-04
Basinger, Sherman
Marine propulsion
Means for accomodating or moving engine fluids
Means for handling exhaust gas
416 93A, B63H 2132
Patent
active
060103809
ABSTRACT:
An exhaust system for marine propulsion units passes engine exhaust gas out through lateral holes in the lower unit casing at the level of the propeller shaft that communicate between an exhaust passage in the propeller-shaft-support unit and the ambient water. This venting mechanism discharges gas at the level of the propeller hub when the vessel is moving slowly. The vented gas enables the engine to rapidly increase its RPM s without excessive engine loading. This allows for increased acceleration and less engine damage. The system may include venting gas though the hub and out the aft end of the propeller. The system may be used with outboard engines, inboard/outdrives, and full inboards. When used with full inboards, a valve mechanism may enable diversion of an adjustable fraction of the exhaust gas through the transom. A drain hole may also be provided to drain water from the gas passage when the lower unit is out of the water.
REFERENCES:
patent: 3434447 (1969-03-01), Christensen et al.
patent: 3745964 (1973-07-01), Henrich
patent: 3919965 (1975-11-01), Ross
patent: 4373922 (1983-02-01), Weed
patent: 4545771 (1985-10-01), Iio
patent: 4773215 (1988-09-01), Winberg et al.
patent: 4802872 (1989-02-01), Stanton
patent: 4871334 (1989-10-01), McCormick
patent: 4891025 (1990-01-01), Brandt
patent: 4911665 (1990-03-01), Hetzel
patent: 5145428 (1992-09-01), Harrison
patent: 5816869 (1998-10-01), Willows
patent: 5857880 (1999-01-01), Harada
Basinger Sherman
Blum Alvin S.
LandOfFree
Marine exhaust vented forward of propeller hub does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Marine exhaust vented forward of propeller hub, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Marine exhaust vented forward of propeller hub will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1068160