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
Connecting piece, multi-axis machining center, elasticity control method
Dielectric films comprising silicon and methods for making same
Managing a cluster of computers
Method for ensuring DPT compliance with autorouted metal layers
Heat-resistant alloy member, alloy member for fuel cell, collector member for fuel cell, cell stack, and fuel cell apparatus
Method and system for displaying a timeline
Implantable medical device charging
  Randomly Featured Patents
Apparatus, method, and program for supporting speech interface design
Method of optimizing component layout using a pattern based search
Cat litter screening device
Device for depositing a coating on an internal surface of a container
Analyzer apparatus featuring a simplified incubator
Enhanced oil recovery using alkylated, sulfonated, oxidized lignin surfactants
Vacuum flask
Electronically controlled battery cut-off
Alkali metal-sulphur cells
Apparatus for low power radio communications