Patent ID: 7823438

Claim:
A device configured to sense a fluid, comprising: a sensing element; a housing accommodating the sensing element; and a supply duct and a discharge duct, which ducts at one end are configured to communicate with the housing and which ducts at the other end are configured to communicate with the fluid that is to be sensed, wherein the housing is formed with a first passage portion for the fluid that is to be sensed, the sensing element is positioned in the first passage portion, the supply duct opens into said first passage portion, the discharge duct is connected to a discharge opening formed in the first passage portion and positioned at a considerable peripheral distance from a mouth of said supply duct in the first passage portion, so that the fluid that is to be sensed is actively made to pass the sensing element, and the housing is provided with a second passage portion which is shielded from the first passage portion and which extends between said discharge opening in the first passage portion and the discharge duct.