Metering module for metering a reducing agent
AssigneeRobert Bosch GmbH
InventorsMartin Murst, Achim Knittel, Thilo Kreher, Thorsten Rankel, Jochen Winkler, Claudius Henkel, Gellert Elsoe
Life of this patent
Estimating the term…
Loading patent…
AssigneeRobert Bosch GmbH
InventorsMartin Murst, Achim Knittel, Thilo Kreher, Thorsten Rankel, Jochen Winkler, Claudius Henkel, Gellert Elsoe
Estimating the term…
The invention relates to a metering device (10) for introducing a process liquid or auxiliary agent into a flow pipe of an internal combustion engine, in particular for introducing a reducing agent into an exhaust gas pipe (12). Said device comprises an injection valve (22) and a receiving device (50) comprising a heat sink element (46) and a cover element (48). The injection valve (22) and the receiving device (50) are combined to form a structural unit by means of bonded connections (62, 64).
A dosing device for the introduction of a substance into a flow pipe of an internal combustion engine, the dosing device comprising an injection valve and a receiving device, the receiving device having a cooling body element that includes at least one thin-walled component that at least Partially defines a chamber to be charged with a cooling medium, wherein the injection valve and the receiving device are combined to form a structural unit, wherein the injection valve is, at a lower end in a region of a spray hole disk, directly connected cohesively and sealingly to the at least one thin-walled component of the cooling body element by a first weld seam, wherein a second weld seam cohesively and sealingly connects the injection valve, at an upper end, to a cover element of the receiving device.
Dependencies are inferred from the claim text.