Exhaust system for an internal combustion engine
AssigneesMichael D. Epstein, Noah Weinberg, Aish Hatorah
InventorDavid A. LeVine
Life of this patent
Estimating the term…
Abstract
An exhaust system for an internal combustion engine includes a conduit in fluid communication with a combustion chamber for transferring exhaust gases from the combustion chamber. The exhaust system also includes a port disposed along the conduit for admitting supplemental air into the conduit so that the supplemental air combines with the exhaust gases and flows immediately in a direction downstream from the combustion chamber to draw the exhaust gases from the combustion chamber and to increase combustion of the exhaust gases.
Claims17
An exhaust system for an internal combustion engine comprising:
- a conduit in fluid communication with a combustion chamber for transferring exhaust gases from said combustion chamber, said conduit having a first end adjacent said combustion chamber, a second end distant from said combustion chamber, said exhaust gases within said conduit heating said conduit to a point of maximum temperature disposed along said conduit between said first and second ends, whereby acoustic waves within said conduit reflect off said second end and produce alternating high and low pressure conditions within said conduit;
- and
- a valve mounted on said conduit substantially at said point, said valve being vented to an ambient atmosphere for admitting supplemental air from said ambient atmosphere into said conduit when the pressure within said conduit at said point is below the pressure of said ambient atmosphere, so that said supplemental air combines with said exhaust gases.
An exhaust system for removing exhaust gases from an internal combustion engine having a plurality of combustion chambers, the system comprising:
- a pair of exhaust pipes, each in fluid communication with a corresponding combustion chamber and having a first end adjacent said corresponding combustion chamber, a second end distant from said corresponding combustion chamber, said exhaust gases within each of said pipes heating said pipe to a point of maximum temperature disposed along said pipe between said first and second ends, whereby acoustic waves within each of said pipes reflect off said second end to produce alternating high and low pressure conditions within said pipe;
- at least one gulp valve mounted on each of said exhaust pipes at said maximum temperature point, each of said valves being vented to an ambient atmosphere for admitting supplemental air from said ambient atmosphere into a corresponding pipe when the pressure within said corresponding pipe at said point is below the pressure of said ambient atmosphere;
- and
- a coupling joint joining said second ends of said pair of exhaust pipes downstream from said gulp valves and at a location of decreasing temperature within said exhaust pipes.
An exhaust system for removing the exhaust gases from an internal combustion engine having a plurality of combustion chambers, the system comprising:
- a plurality of exhaust pipes, each in fluid communication with a corresponding combustion chamber and having a first end adjacent said corresponding combustion chamber, a second end distant from said corresponding combustion chamber, said exhaust gases within each of said pipes heating said pipe to a point of maximum temperature disposed along said pipe between said first and second ends, whereby acoustic waves within each of said pipes reflect off said second end of said pipe to produce alternating high and low pressure conditions within said pipe;
- a plurality of coupling joints, each joining together two of said second ends of said exhaust pipes;
- and
- a plurality of gulp valves, each mounted on one of said exhaust pipes at said maximum temperature point, each of said valves being vented to an ambient atmosphere for admitting supplemental air from said ambient atmosphere into a corresponding pipe when the pressure within said corresponding pipe at said point is below the pressure of said ambient atmosphere.
Dependencies are inferred from the claim text.