Patent ID: 9080492
Filing Date: 2015-07-14
Classification: F01N

Abstract:
1. An exhaust system for an internal combustion engine, comprising: an outer housing including a front shell, a rear shell, a prechamber through which exhaust gas from a combustion chamber enters, and at least one intermediate shell having a front and back; at least one catalytic converter holder disposed within the intermediate shell; a catalytic converter element arranged on the catalytic converter holder; and an exhaust port from which exhaust gas from the catalytic converter element is directed; characterized in that: the intermediate shell forms the prechamber and the exhaust port; the intermediate shell with the front shell forms the prechamber and with the rear shell forms the exhaust port; the exhaust port is passed about at least four sides of the prechamber, such that the exhaust gas from the catalytic converter element in the exhaust port is cooled by the prechamber; and between the intermediate shell and the rear shell, an insulating shell is provided the contour of which is designed parallel to the inside of the rear shell.