Coolant control valve, cooling system provided with the same and control method thereof
AssigneesHyundai Motor Company, Kia Motors Corporation
InventorHyo Jo LEE
Life of this patent
Estimating the term…
Abstract
A coolant control system for a motor vehicle includes a controller determining whether the output signal of the vehicle satisfies a predetermined driving condition and controlling a coolant control valve including a driving motor. The coolant control valve includes a coolant inflow chamber, a first coolant line, a second coolant line and a third coolant line formed in a valve housing. The coolant control valve further includes a first outer valve, a first inner valve and a second other valve formed in the valve housing, and each of the valves is communicating with each of the coolant lines, selectively and respectively. In addition, each of the valves includes a hole for selectively communicating with a coolant inflow chamber.
Claims22
A coolant control valve comprising:
- a valve housing including a coolant inflow chamber, a first coolant line, a second coolant line and a third coolant line;
- a first outer valve including a first outer tip protruded and a first outer hole configured for communicating with the second coolant line formed thereto, and the first outer valve movably disposed in the valve housing for blocking the second coolant line and for selectively communicating the first coolant line with the coolant inflow chamber;
- a first inner valve including a first inner tip protruded and a first inner hole configured for communicating with the coolant inflow chamber and selectively communicating with the first outer hole, and the first inner valve movably disposed in the first outer valve;
- a second outer valve including a second outer tip protruded and the second outer valve movably disposed in the valve housing for selectively communicating the third coolant line with the coolant inflow chamber;
- a cam including a first track for contacting the first outer tip and selectively pushing the first outer valve, a second track for contacting the first inner tip and selectively pushing the first inner valve and a third track for contacting the second outer tip and selectively for pushing the second outer valve;
- a drive motor configured for selectively rotating the cam;
- and
- a controller configured for controlling an operation of the drive motor.
A cooling system comprising:
- a water pump;
- an engine receiving coolant from the water pump and including an engine block and a cylinder head;
- a valve housing including a coolant inflow chamber for communicating with the cylinder head, a first coolant line for communicating with the engine block, a second coolant line for communicating with at least one of heat exchange elements and a third coolant line for communicating with a radiator;
- a first outer valve including a first outer tip protruded and a first outer hole configured for communicating with the second coolant line, and the first outer valve movably disposed in the valve housing for blocking the second coolant line and for selectively communicating the first coolant line with the coolant inflow chamber;
- a first inner valve including a first inner tip protruded and a first inner hole configured for communicating with the coolant inflow chamber and selectively communicating with the first outer hole, and the first inner valve movably disposed in the first outer valve;
- a second outer valve including a second outer tip protruded and the second outer valve movably disposed in the valve housing for selectively communicating the third coolant line with the coolant inflow chamber;
- a cam including a first track for contacting the first outer tip and selectively pushing the first outer valve, a second track for contacting the first inner tip and selectively pushing the first inner valve and a third track for contacting the second outer tip and selectively pushing the second outer valve;
- a drive motor configured for selectively rotating the cam;
- a first coolant temperature sensor configured for measuring a first temperature of coolant passing through the cylinder head and outputting a first corresponding signal;
- a second coolant temperature sensor configured for measuring a second temperature of coolant passing through the engine block and outputting a second corresponding signal;
- and
- a controller configured for controlling operation of the drive motor according to output signals of a vehicle operation state detecting portion including the first and the second coolant temperature sensors.
Dependencies are inferred from the claim text.