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US 2017/0254245 A1Published application
Mixer for mixing exhaust gas
AssigneeFord Global Technologies, LLC
InventorXiaogang Zhang
Life of this patent
Estimating the term…
Abstract
Systems are provided for a mixer configured to be used in either an intake or exhaust passage. In one example, a mixer in the intake passage may be adapted to mix EGR with intake air and a mixer in the exhaust passage may be adapted to mix urea with exhaust gas.
Claims20
A system comprising:
- a hollow teardrop-shaped mixer comprising an inlet at a downstream spherically-rounded end and a plurality of outlets located along a maximum diameter of the mixer, the mixer radially spaced away from a pipe, a diameter of the mixer along a central axis continually decreases from the maximum diameter to upstream and downstream ends relative to a direction of gas flow.
An exhaust system comprising:
- a symmetric fixed urea mixer located along a central axis inside an exhaust pipe with a first opening located across and aligned with a second opening along the central axis;
- a plurality of perforations located along a largest circumference of the mixer;
- and
- an injector protruding through the first opening, the injector fluidly coupled to a reservoir via a tube.
1 more element
An intake system comprising:
- a symmetric fixed EGR mixer located along a central axis inside an intake pipe with a first opening located across and aligned with a second opening along the central axis;
- a plurality of perforations located along a largest circumference of the mixer;
- and
- an EGR pipe extending through the intake pipe physically coupled to a surface of the EGR mixer configured to flow EGR to an interior chamber of the mixer.
1 more element
Dependencies are inferred from the claim text.