Compact rotary valve body for coolant control valve
A coolant control valve is provided that has an outer housing, an actuator, and a fluid flow metering rotary valve body actuated by the actuator. The rotary valve body includes a rotational axis and at least one lobe having a fluid opening. The fluid opening has a first width and a first end. The first width is configured for a first contact face having a first sealing diameter. At least one first support land extends from the first end. The at least one first support land is configured to support a second contact face having a second sealing diameter, the second sealing diameter smaller than the first width.
1. A rotary valve body comprising:
a rotational axis; and,
at least one lobe having:
a fluid opening with a first width configured for a first contact face having a first sealing diameter;
the fluid opening having at least one first support land extending from a first end;
the at least one first support land configured for supporting a second contact face having a second sealing diameter;
the second sealing diameter smaller than the first width; and,
the fluid opening configured to rotate relative to the first and second contact faces.
2. The rotary valve body of claim 1 , wherein the at least one first support land is comprised of a first and a second support land spaced apart by a second width smaller than the first width.
3. The rotary valve body of claim 1 , further comprising at least one second support land extending from a second end of the fluid opening, the at least one second support land configured for supporting the second contact face.
4. The rotary valve body of claim 3 , wherein the at least one second support land is comprised of a third and a fourth support land spaced apart by a second width smaller than the first width.
5. The rotary valve body of claim 1 , wherein the at least one first support land has at least one distal end.
6. The rotary valve body of claim 5 , further comprising an actuator interface.
7. The rotary valve body of claim 1 , including:
a first rotational position of the rotary valve body, wherein the fluid opening is configured to overlap the first contact face and the second contact face; and,
a second rotational position of the rotary valve body, wherein the fluid opening is configured to overlap the first contact face, and not overlap the second contact face.
8. A coolant control valve, comprising:
an outer housing;
an actuator; and,
a rotary valve body actuated by the actuator; the rotary valve body having:
a rotational axis; and,
at least one lobe having:
a fluid opening with a first width configured for a first contact face having a first sealing diameter;
the fluid opening having at least one first support land extending from a first end;
the at least one first support land configured for supporting a second contact face having a second sealing diameter;
the second sealing diameter smaller than the first width; and,
the fluid opening configured to rotate relative to the first and second contact faces.
9. The coolant control valve of claim 8 , further comprising at least one seal body configured with at least one of the first and second contact faces.
10. The coolant control valve of claim 9 , wherein the at least one seal body is forcibly engaging an outer surface of the rotary valve body.
11. The coolant control valve of claim 10 , further comprising at least one resilient element that forcibly engages the at least one seal body to an outer surface of the rotary valve body.
12. The coolant control valve of claim 9 , wherein a first seal body is configured with the first contact face, and a second seal body is configured with the second contact face.
13. The coolant control valve of claim 8 , wherein the at least one first support land forms a curved land outer surface that supports the second contact face.
14. The coolant control valve of claim 13 , wherein the curved land outer surface is configured to seal with the second contact face.
15. The coolant control valve of claim 14 , wherein the curved land outer surface is cospherical with an outer surface of the at least one lobe.
16. The coolant control valve of claim 8 , wherein the outer housing comprises at least one inlet and at least one outlet.
17. The coolant control valve of claim 16 , wherein a first central axis of the at least one inlet and a second central axis of the at least one outlet are coplanar.
18. The coolant control valve of claim 17 , wherein the first and second central axes intersect a rotational axis of the rotary valve body at a common intersection point.
19. The coolant control valve of claim 8 , wherein the rotary valve body is configured with a single lobe.
20. The coolant control valve of claim 19 , wherein the single lobe is spherical.