Resources Contact Us Home
Exhaust relief system with baffle

Image Number 3 for United States Patent #5106330.

The invention provides a marine propulsion device comprising a powerhead including an exhaust gas discharge port, a gearcase rotatably supporting a propeller shaft connected to the powerhead and including an exhaust gas discharge, and a lower unit including an upper portion supporting the powerhead and a lower portion connected to the gearcase, with the lower unit comprising an inner exhaust housing having a generally vertical wall, an open top in communication with the powerhead exhaust gas discharge port, a bottom having therein a first exhaust gas outlet and a second exhaust gas outlet at the top portion of the wall, and an outer exhaust housing also having a generally vertical wall in surrounding relation to the inner exhaust gas housing and defining a vertically extending generally annular space between the inner and outer exhaust gas housings, the space communicating with the second exhaust gas outlet. A water pump, driven by the powerhead, supplies water to the powerhead and to the space between the inner and outer exhaust gas housings. A means for varying the water in the space between the inner and outer exhaust gas housings between a first lower level and a second upper level responds to an operating condition in the powerhead, and an idle exhaust gas discharge means operates only when the water in the annular space between the inner exhaust housing and the outer gas housing is at the first lower level.

  Recently Added Patents
Methods and apparatus for monitoring communication through identification of priority-ranked keywords
Monitoring activity of a user in locomotion on foot
Semiconductor device and method for manufacturing same
System and method for conditionally sending a request for data to a home node
State control of remote hosts for management of distributed applications
Recording medium, playback device, integrated circuit
  Randomly Featured Patents
Continuous liquid purification process
Absorbable riser for recreational vehicles
Locking device for detachable panel of vehicle roofs
Protective case for string instruments
Fishing rod ferrule
Systems and methods for subtext searching data using synonym-enriched predicative phrases and substituted pronouns
Portable powered winch
Spectacle frame
Method for integrating quantitative measurements of imaging systems with reporting applications of medical recording systems
Feeding additives into the interior of molten metal