| 摘要 |
<p>An exhaust mixing device 600 for an internal combustion engine comprises an external pipe 605, an internal beaker-shaped body 606 axially accommodated inside the pipe, an annular inter-space 615 defined there between, and a mixing chamber 620 defined inside the body between a front end 607 and an open rear end 608 thereof. A connection rim 609 is located at the rear end of the body to close the inter-space, and a plurality of holes 650 are provided in a lateral wall of the body to connect the mixing chamber with the inter-space. A turbulator 655 comprising holes 665 and a swirler 660 may be provided at the front end of the body. An injector 675 may inject fluid into, or upstream of, the mixing chamber. The device may be used to mix exhaust gas with Urea upstream of a selective catalytic reduction (SCR) device, or with unburnt fuel to regenerate a Diesel particulate filter (DPF).</p> |
