Coolant control valve and cooling system having the same
AssigneesHyundai Motor Company, Kia Motors Corporation
InventorHyo Jo Lee
Life of this patent
Estimating the term…
Abstract
A coolant control valve unit for a vehicle is disclosed. The coolant control valve unit includes a cam having an upper surface to which a driving axle is connected and a lower surface having at least one sloped surface with a profile set in a rotation direction on the basis of the driving axle, a valve provided in a rod supported on one side of the sloped surface, an actuator rotating the driving axle to push the rod along the profile of the sloped surface of the cam to cause the valve to open and close a coolant passage, a cam cover supporting an upper surface of the cam, and an annular cam bearing interposed between the cam cover and the cam, excluding a central region in which the driving axle is formed.
Claims12
A coolant control valve unit comprising:
- a cam having an upper surface to which a driving axle is connected and a lower surface having at least one sloped surface with a profile set in a rotation direction on the basis of the driving axle;
- a valve provided in a rod supported on one side of the sloped surface;
- an actuator rotating the driving axle to push the rod along the profile of the sloped surface of the cam to cause the valve to open and close a coolant passage;
- a cam cover supporting an upper surface of the cam;
- and
- an annular cam bearing interposed between the cam cover and the cam, excluding a central region in which the driving axle is formed,
- wherein a mounting surface allowing the cam bearing to be mounted thereon is formed on a lower surface of the cam cover along a circumference centering on the driving axle,
- a rib in direct contact with the cam bearing protrudes from an upper surface of the cam, to correspond to the mounting surface, and
- the cam bearing has an annular plate shape.
A cooling system having a coolant control valve unit controlling a coolant distributed to each cooling component of an engine, the cooling system comprising:
- a cam having an upper surface to which a driving axle is connected and a lower surface having at least one sloped surface with a profile set in a rotation direction on the basis of the driving axle;
- a valve provided in a rod supported on one side of the sloped surface;
- an actuator rotating the driving axle to push the rod along the profile of the sloped surface of the cam to cause the valve to open and close a coolant passage;
- a cam cover supporting an upper surface of the cam;
- and
- an annular cam bearing interposed between the cam cover and the cam, excluding a central region in which the driving axle is formed,
- wherein a mounting surface allowing the cam bearing to be mounted thereon is formed on a lower surface of the cam cover along a circumference centering on the driving axle,
- a rib in direct contact with the cam bearing protrudes from an upper surface of the cam, to correspond to the mounting surface, and
- the cam bearing has an annular plate shape.
Dependencies are inferred from the claim text.