Marks & Clerk Cummins

An exhaust treatment device (110) for an exhaust aftertreatment system (100) comprising: a housing (120) having a chamber (122) for receiving exhaust gas, the housing (120) extending between a first end (125) and a second end (127), the housing (120) having a first exhaust tube (124) at the first end (125) and a second exhaust tube (126) at the second end (127); a tubing fitting (200) for the first exhaust tube (124) at the first end (125), the tubing fitting (200) having a fitting body (210, 310), the tubing fitting (200, 306) including an annular flange (230, 330) at an exterior of the fitting body (210, 310), the annular flange (230, 330) having a flange interface configured to face a mating flange of a mating tubing fitting (306), the tubing fitting (200, 306) including a mounting bracket (202u8, 250) extending from the fitting body (210, 310) configured to be attached to a bracket support (15); and a band clamp (150) configured to be coupled to the annular flange (230, 330) to securely couple the annular flange (230, 330) to the mating flange.

An exhaust aftertreatment system includes a first decomposition chamber that receives exhaust and treatment fluid, a first dosing module that includes a first injector that injects the treatment fluid into the first decomposition chamber, and a second decomposition chamber disposed downstream of the first decomposition chamber and that receives the exhaust and the treatment fluid from the first decomposition chamber. The exhaust aftertreatment system further includes a second dosing module that includes a second injector that injects the treatment fluid into the second decomposition chamber and a pressure sensor that generates a pressure signal based on a pressure of the treatment fluid in the second dosing module. The exhaust aftertreatment system further includes a variable resistor selectively switchable between multiple resistances.

There is disclosed herein a decomposition chamber for an exhaust gas aftertreatment system, the decomposition chamber comprising: a selective catalytic reduction (SCR) catalyst member; a distribution cap configured to receive exhaust gas; a mixing collector wall comprising a mixing assembly flow aperture; a mixing assembly wall coupled to the mixing collector wall; an outer housing wall coupled to the mixing assembly wall; and a dividing tube coupled to the mixing collector wall around the mixing assembly flow aperture, the dividing tube separating the distribution cap from the mixing assembly flow aperture, the dividing tube comprising: a dividing tube body separated from the outer housing wall; a dividing tube inlet aperture extending through the dividing tube body and configured to receive the exhaust gas from the distribution cap; a dividing tube body bypass opening extending through the dividing tube body, aligned with the dividing tube inlet aperture, in confronting relation with the mixing assembly wall, and configured to receive the exhaust gas from between the dividing tube body and the mixing collector wall; and a dividing tube outlet aperture configured to provide the exhaust gas to the mixing assembly flow aperture.

There is disclosed a turbine housing (15) for containing a turbine wheel (14) for rotation about a first axis (2). The turbine housing defines a turbine chamber (20). The turbine housing further defines a volute (19) which spirals radially inwards and extends from an inlet (40) to adjoin the turbine chamber. The turbine housing further defines a tongue (42) of the volute, the tongue radially separates a downstream portion (46) of the volute adjacent the turbine chamber from an upstream portion (48) of the volute adjacent the inlet of the volute. A distal portion (43) of the tongue comprises a plurality of recesses (50), the recesses having different profiles.

An axial flow element for use in a liquid separation system for an internal combustion engine includes a hub, a groove, a locking member, and a flat layer. The hub includes a cylindrical outer surface. The groove is disposed in the outer surface. The groove extends in a substantially longitudinal direction along the hub from a first end of the hub to a second end of the hub. The locking member is disposed in the groove. The flat layer is disposed between the hub and the locking member.

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Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …