Patent attributes
The invention relates to a thermostat valve for a combustion engine, comprising a housing which comprises several connections, and comprising a hollow valve body which comprises a shell surface which is ball-shaped at least sectionally, which valve body is mounted in the housing rotatable about a rotational axis by a rotational drive, wherein the valve body comprises at least one main opening and at least one control opening, wherein at least the control opening is limited by the shell surface and can be selectively brought into overlap with one of the connections of the housing by rotating the valve body, wherein the shell surface comprises at least one deepening in relation to the surrounding surface of the shell surface adjacent to the at least one control opening limited by the shell surface, wherein the deepening is provided such that upon rotation of the valve body, in order to bring the at least one control opening into overlap with one of the connections of the housing, fluid can flow through the deepening between the connection of the housing and the control opening already before an overlap between the at least one control opening and the connection of the housing.
