Patent ID: 9115622
Filing Date: 2015-08-25
Classification: F01N

Abstract:
1. A heating module for an exhaust-gas purification system connected to the outlet of an internal combustion engine, comprising: a catalytic burner, comprising an HC injector, an oxidation catalytic converter positioned downstream of the HC injector in a direction of flow of the exhaust gas, for supplying thermal energy to an exhaust-gas purification unit of an exhaust-gas purification system; a heating module comprising a main section, a secondary section containing the catalytic burner and a device for controlling the exhaust-gas mass flow flowing through the secondary section; wherein the main section, in an inlet area of the heating module, comprises an overflow pipe section further comprising overflow openings, through which overflow openings a flow connection is established between the main section and the secondary section, and wherein the sum of the cross-sectional areas of the overflow openings of the overflow pipe section is greater than a cross-sectional area of the main section in the overflow pipe section.