Patent ID: 8205493

Claim:
A plug-in sensor for determining at least one parameter of a flowing air mass of an internal combustion engine flowing through a flow pipe in a main flow direction, comprising: a plug part configured to be introduced into the flowing air mass with a specified alignment to the main flow direction, wherein the plug part has at least one flow channel having at least one inlet opening and at least one outlet opening; a bypass flow channel branching off the at least one flow channel in the main flow direction; and at least one sensor for determining the at least one parameter, wherein the at least one sensor is accommodated in the bypass flow channel of the plug part; wherein the plug part has a rounded inflow side directed counter to the main flow direction, and wherein the at least one flow channel has the at least one inlet opening in a region of the rounded inflow side, wherein the plug part has at least one airfoil profile configured in such a way that an asymmetrical flow profile of the air mass results on different sides of the plug part when the plug part is introduced into the flowing air mass, and wherein the bypass flow channel and the at least one sensor are contained within the at least one airfoil profile.