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 ro
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.
대표청구항▼
1. 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 rotat
1. 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, wherein at least one of:(i) the deepening is provided such that the fluid flow flowing through the deepening increases exponentially upon rotation of the valve body with increasing rotational angle;(ii) a central axis of the main opening and a central axis of the control opening have directions that are different from each other; or(iii) the deepening is such that a defined rotational angle range in which an amount of fluid flow flowing through the deepening no longer changes but rather remains constant, thereby preventing oscillating movement of the valve body caused by a valve body drive, and wherein the deepening is such that if the valve body is rotated further beyond this rotational angle range, the control opening comes into overlap with a connection of the connections, such that maximum throughflow cross section is provided. 2. Thermostat valve according to claim 1, wherein the deepening comprises a depth and/or width decreasing, starting from the control opening. 3. Thermostat valve according to claim 1, wherein the deepening is provided such that the fluid flow flowing through the deepening increases upon rotation of the valve body with increasing rotational angle. 4. Thermostat valve according to claim 1, wherein the deepening is provided such that the fluid flow flowing through the deepening increases exponentially upon rotation of the valve body with increasing rotational angle. 5. Thermostat valve according to claim 1, wherein the deepening is provided such that the fluid flow flowing through the deepening remains constant at least defined over the rotational angle area upon rotation of the valve body. 6. 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, wherein the rotational drive comprises a vacuum drive which comprises a vacuum capsule with variable negative pressure. 7. Thermostat valve according to claim 1, wherein the rotational drive comprises an electric drive. 8. Thermostat valve according to claim 1, wherein the shell surface comprises several deepenings 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 deepenings are each provided such, that upon rotation of the valve body fluid can flow through the respective 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. 9. Thermostat valve according to claim 1, wherein the valve body comprises several control openings limited by the shell surface, which upon rotation of the valve body can selectively be brought into overlap with one of the connections of the housing, respectively. 10. Thermostat valve according to claim 9, wherein each of the control openings comprises at least one deepening in relation to the surrounding surface of the shell surface, wherein the deepenings are in each case provided such that upon rotation of the valve body fluid can flow through the respective deepening between the connection of the housing and the respective control opening already before an overlap between the respective control opening and the connection of the housing. 11. Thermostat valve according to claim 8, wherein at least some of the deepenings differ with regard to their length, width and/or depth. 12. Combustion engine of an automobile, comprising a thermostat valve according to claim 1. 13. Thermostat valve, comprising a rotational drive;a housing comprising two or more connections;a valve body mounted in the housing and configured to be rotatable about a rotational axis by the rotational drive, the valve body comprising: a shell;a control opening formed in the shell, the control opening being configured to be selectively brought into overlap with one of the connections of the housing by rotating the valve body;a deepening formed in the shell adjacent to the control opening, the deepening being configured to extend to the control opening in the direction in which the valve body rotates; anda main opening limited by the shell and configured to connect to the control opening, said main opening being free of deepening, wherein at least one of: (i) the valve body has a hemispherical shape, the control opening is formed in the hemispherical shell, and the main opening is formed by the missing sphere half of the hemisphere shape;(ii) the housing comprises a first connection connecting to an engine cooling connection, a second connection connecting to a cooler, and a third connection connecting to a bypass, and said first connection and the second connection extend in the same direction, and the deepening is formed at the upstream side of the control opening in the rotational direction of the valve body; or(iii) the depth of the deepening remains constant at least over a defined rotational angle area upon rotation of the valve body, and the depth subsequently decreases. 14. Thermostat valve according to claim 13, wherein the valve body has the hemispherical shape, the control opening is formed in the hemispherical shell, and the main opening is formed by the missing sphere half of the hemisphere shape. 15. Thermostat valve according to claim 13, wherein the deepening has an elliptical shape at least partially. 16. Thermostat valve according to claim 13, wherein the deepening is in the form of a quarter-sphere recessed in the shell surface. 17. Combustion engine of an automobile according to claim 12, wherein the housing comprises a first connection connecting to an engine cooling connection, a second connection connecting to a cooler, and a third connection connecting to a bypass, and said first connection and the second connection extend in the same direction, and the deepening is formed at the upstream side of the control opening in the rotational direction of the valve body. 18. Thermostat valve according claim 13, wherein the fluid flow flowing through the deepening increases exponentially upon rotation of the valve body with increasing rotational angle due to an elliptical shape. 19. Thermostat valve according to claim 13, wherein the depth of the deepening remains constant at least over the defined rotational angle area upon rotation of the valve body, and the depth subsequently decreases. 20. Thermostat valve according to claim 1, wherein an area of the main opening is larger than an area of the control opening. 21. Thermostat valve according to claim 1, wherein the hollow valve body has a hemispherical shell surface. 22. Thermostat valve according to claim 21, wherein the main opening is formed by a sphere half of the hemispherical shell surface. 23. Thermostat valve according to claim 1, wherein the central axis of the main opening and the central axis of the control opening have directions that are different from each other. 24. Thermostat valve according to claim 1, wherein the valve body is a solid valve body. 25. Thermostat valve according to claim 1, wherein an outer surface of the valve body establishing the shell surface is less than a hemisphere surface. 26. Thermostat valve according to claim 1, wherein the deepening is such that a defined rotational angle range in which an amount of fluid flow flowing through the deepening no longer changes but rather remains constant with rotation of the valve body. 27. Thermostat valve according to claim 1, wherein the deepening is such that the defined rotational angle range in which the amount of fluid flow flowing through the deepening no longer changes but rather remains constant, thereby preventing oscillating movement of the valve body caused by the valve body drive, and wherein the deepening is such that if the valve body is rotated further beyond this rotational angle range, the control opening comes into overlap with the connection of the connections, such that maximum throughflow cross section is provided.
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이 특허에 인용된 특허 (7)
Champagne Raymond P. (Coventry RI), Ball control valve.
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