| 摘要 |
An exhaust filter (e.g a diesel particulate filter, catalytic converter, or exhaust muffler) comprises an inlet 12 in fluid communication with an outlet 14 via an expansion chamber 16. The expansion chamber comprises an inner core 22 extending in its longitudinal direction, and the flow of gases through the filter is in a substantially longitudinal direction from the inlet to the outlet. At least one fluid injector 28 may be provided in the flow path between the inlet and the outlet. The inner core may comprise a fluid reservoir, which may supply fluid to the injector. The fluid in the reservoir may be heated by the flow of exhaust gases. Two filtration sections 26a, 26b may be provided around the inner core. The inner core may comprise inlet and outlet gas deflector caps 24a, 24b, at least one of which may be removable. Accelerator tubes may be provided around the core so as to achieve a substantially laminar flow. The tubes may be arced to provide rifling. |
