Injector having a reinforced spray disc
AssigneeContinental Automotive GmbH
InventorsSven Schepers, Rolf Brück
Life of this patent
Estimating the term…
Abstract
An injector for adding a liquid additive into an exhaust gas treatment apparatus includes at least one nozzle having a spray disc configured to inject the liquid additive into the exhaust gas treatment apparatus. The spray disc has: at least one spray duct, through which flow of the liquid additive can pass, the spray duct having an outlet opening configured to shape a spray jet of the liquid additive. The spray disc has a reinforcing structure arranged downstream of the outlet opening, the reinforcing structure being configured such that it is not wetted by the spray jet.
Claims10
An injector (1) for adding a liquid additive (2) into an exhaust gas treatment apparatus (3), the injector (1) comprising:
- at least one nozzle (5) having a spray disc (4) configured to inject the liquid additive (2) into the exhaust gas treatment apparatus (3),
- the spray disc (4) having:
- at least one spray duct (6), through which flow of the liquid additive (2) can pass, the at least one spray duct (6) having an outlet opening (7) configured to shape a spray jet (8) of the liquid additive (2),
- wherein the spray disc (4) has a reinforcing structure (9) arranged downstream of the outlet opening (7), the reinforcing structure (9) being configured such that it is not wetted by the spray jet (8), and
- wherein the at least one spray duct (6) has, upstream of the outlet opening (7), a first duct section (13) and has, downstream of the outlet opening (7), a second duct section (14), the first duct section (13) having a first duct cross section (15), and the second duct section (14) having a second duct cross section (12) wider than the first duct cross section (15), the second cross section (12) widening from the first duct cross section (15) without graduation.
An injector (1) for adding a liquid additive (2) into an exhaust gas treatment apparatus (3), the injector (1) comprising:
- at least one nozzle (5) having a spray disc (4) configured to inject the liquid additive (2) into the exhaust gas treatment apparatus (3),
- the spray disc (4) having:
- at least one spray duct (6), through which flow of the liquid additive (2) can pass, the at least one spray duct (6) having an outlet opening (7) configured to shape a spray jet (8) of the liquid additive (2),
- wherein the spray disc (4) has a reinforcing structure (9) arranged downstream of the outlet opening (7), the reinforcing structure (9) being configured such that it is not wetted by the spray jet (8), and
- wherein the at least one spray duct (6) has, upstream of the outlet opening (7), a first duct section (13) and has, downstream of the outlet opening (7), a second duct section (14), the first duct section (13) having a first duct cross section (15), and the second duct section (14) having a second duct cross section (12) wider than the first duct cross section (15), a ratio of the first duct cross section (15) to the second duct cross section (12) being less than 0.8.
Dependencies are inferred from the claim text.