Air-exhaust mixer assembly
First Claim
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1. An air-exhaust mixer assembly, comprising:
- an air intake to supply air;
an exhaust gas intake to supply exhaust gas; and
a mixer fluidly coupled to said air intake and said exhaust gas intake, said mixer having an inner passage and an outer passage defined therein along a longitudinal axis, wherein said inner passage and said outer passage are constructed and arranged to deliver said air and said exhaust gas ready for mixing by expanding said air and said exhaust gas in radially opposite directions with respect to said longitudinal axis.
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Abstract
An air-exhaust mixer assembly includes an air intake to supply air and an exhaust gas intake to supply exhaust gas. A mixer is fluidly coupled to the air intake and the exhaust gas intake. The mixer has an inner passage and an outer passage defined therein along a longitudinal axis. The inner passage and the outer passage are adapted to mix the air and the exhaust gas by expanding the air and the exhaust gas in radially opposite directions with respect to the longitudinal axis.
96 Citations
20 Claims
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1. An air-exhaust mixer assembly, comprising:
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an air intake to supply air;
an exhaust gas intake to supply exhaust gas; and
a mixer fluidly coupled to said air intake and said exhaust gas intake, said mixer having an inner passage and an outer passage defined therein along a longitudinal axis, wherein said inner passage and said outer passage are constructed and arranged to deliver said air and said exhaust gas ready for mixing by expanding said air and said exhaust gas in radially opposite directions with respect to said longitudinal axis. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
an intake connection elbow fluidly coupled to said air intake; and
a seal provided between said connection elbow and said air intake.
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13. The assembly of claim 12, further comprising at least one cap screw fastening said intake connection elbow to said air intake.
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14. The assembly of claim 1, further comprising a housing provided around said mixer, said housing having a mixer exhaust cavity fluidly coupled to said outer passage and said inner passage.
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15. The assembly of claim 1, wherein said mixer has a corrugated cylindrical portion that defines inner channels and outer channels, said inner channels are adapted to expand said intake air in a radially outward direction, and said outer channels are adapted to expand said exhaust gas in a radially inward direction.
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16. The assembly of claim 1, further comprising:
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an intake connection elbow fluidly coupled to said air intake;
a seal provided between said connection elbow and said air intake;
at least one cap screw fastening said intake connection elbow to said air intake;
wherein said inner passage is fluidly coupled to said air intake and said outer passage is fluidly coupled to said exhaust gas intake;
wherein said inner passage is adapted to expand said air in a radially outward direction and said outer passage is adapted to expand said exhaust gas in a radially inward direction;
wherein said mixer has corrugated walls that define said inner passage, said corrugated walls define inner channels in said inner passage, said corrugated walls have flat end portions;
wherein said mixer has an upstream portion and a downstream portion, said inner channels radially expand from said upstream portion to said downstream portion;
wherein said mixer includes a housing provided around said corrugated walls, said housing, said air intake and said corrugated walls define said outer passage, said corrugated walls define outer channels for said outer passage, said outer channels radially expand from said upstream portion to said downstream portion, said housing has a mixer exhaust cavity fluidly coupled to said outer passage and said inner passage; and
wherein said air intake has a frusta-conical shape.
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17. An apparatus, comprising:
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an engine having an air intake for supplying air to said engine and an exhaust for exhausting exhaust gas from said engine;
a mixer fluidly coupled to said air intake and said exhaust, said mixer having an inner passage and an outer passage defined therein along a longitudinal axis, wherein said inner passage and said outer passage are constructed and arranged to deliver said air and at least a portion of said exhaust gas ready for mixing by expanding said air and said portion of said exhaust gas in radially opposite directions with respect to said longitudinal axis. - View Dependent Claims (18, 19, 20)
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Specification