VENTURI MIXING SYSTEM FOR EXHAUST GAS RECIRCULATION (EGR)
First Claim
1. A venturi mixing system for exhaust gas recirculation (EGR) in an internal combustion engine, comprising:
- a venturi mixing device;
an intake air conduit connected to the venturi mixing device;
a supply conduit connected to the venturi mixing device;
at least two inset conduits connected to the venturi mixing device;
an EGR conduit connected to an annular cavity of the venturi mixing device;
where the venturi mixing device generates a lower pressure region in intake air from the intake air conduit;
where the at least two inset conduits are in fluid communication with the annular cavity;
where the at least two inset conduit generate a turbulence field in the lower pressure region;
where the venturi mixing device directs exhaust gases from the EGR conduit into the turbulence field; and
where the venturi mixing device provides a combustion gas to the supply conduit.
11 Assignments
0 Petitions
Accused Products
Abstract
A venturi mixing system mixes intake air with exhaust gases for exhaust gas recirculation (EGR) in an internal combustion engine. The venturi mixing system has a venturi disposed in a mixing conduit. The venturi is connected to an intake air conduit and a supply conduit. The venturi and mixing conduit form an annular cavity connected to an EGR conduit. The venturi forms a mixing chamber. One or more inset conduits connect to the venturi and extend into the mixing chamber. Each inset conduit has an end outlet and one or more side outlets. The venturi generates a lower pressure region in the intake air. The inset conduits generate a turbulence field in the lower pressure region. The inset conduits direct intake air into the turbulence field. The inset conduits direct exhaust gases through the end and side outlets into the turbulence field. The exhaust gases mix with the intake air in the turbulence field to form a combustion gas for combustion of fuel in the engine. The venturi provides the combustion gas to the supply conduit.
31 Citations
53 Claims
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1. A venturi mixing system for exhaust gas recirculation (EGR) in an internal combustion engine, comprising:
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a venturi mixing device;
an intake air conduit connected to the venturi mixing device;
a supply conduit connected to the venturi mixing device;
at least two inset conduits connected to the venturi mixing device;
an EGR conduit connected to an annular cavity of the venturi mixing device;
where the venturi mixing device generates a lower pressure region in intake air from the intake air conduit;
where the at least two inset conduits are in fluid communication with the annular cavity;
where the at least two inset conduit generate a turbulence field in the lower pressure region;
where the venturi mixing device directs exhaust gases from the EGR conduit into the turbulence field; and
where the venturi mixing device provides a combustion gas to the supply conduit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A venturi mixing system for exhaust gas recirculation (EGR) in an internal combustion engine, comprising:
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a mixing conduit;
a venturi disposed in the mixing conduit, where the venturi and the mixing conduit form an annular cavity, where the venturi forms a mixing chamber;
an intake air conduit connected to the venturi;
a supply conduit connected to the venturi;
an EGR conduit connected to the annular cavity; and
at least two inset conduit in fluid communication with the annular cavity, where the at least two inset conduits generate at least one turbulent flow location in intake air from the intake air conduit, where the at least two inset conduits extend into the mixing chamber, where the at least two inset conduits each form an end outlet, where each of the at least two inset conduits format least one side outlet on a downstream side. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36)
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37. A venturi mixing device for exhaust gas recirculation
(EGR) in an internal combustion engine, comprising: -
a mixing conduit;
a venturi disposed in the mixing conduit, where the venturi and the mixing conduit form an annular cavity, where the venturi forms a mixing chamber, where the venturi has an inlet section connected by a throat section to an outlet section, where the inlet section forms a venturi inlet, where the inlet section has an inlet length from the throat section to the venturi inlet, where the venturi inlet has a venturi inlet diameter, where the throat section has a throat diameter, and where the outlet section forms a venturi outlet, where the outlet section has an outlet length from the throat section to the venturi outlet; and
at least two inset conduits in fluid communication with the annular cavity, where the at least two inset conduits generate at least one turbulent flow location in intake air from the venturi inlet, where the at least two inset conduits extend into the mixing chamber, where the at least two inset conduit have an inset diameter, where each of the at least two inset conduits form an end outlet at an offset distance from an axis of the mixing chamber, where each of the end outlets has a guide angle with the axis, and where each of the at least two inset conduits format least one side outlet on a downstream side. - View Dependent Claims (38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49)
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50. A method for mixing exhaust gases with intake air in an internal combustion engine, comprising:
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generating a lower pressure region in intake air;
generating a turbulence field in the lower pressure region with at least two inset conduits; and
directing exhaust gases from an annular cavity into the turbulence field through the at least two inset conduits, wherein the at least two fluid conduits are fluidly communicating with the annular cavity. - View Dependent Claims (51, 52, 53)
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Specification