Coolant control valve of engine

Patent metadata

Field	Value
Publication number	US-9617906-B2
Application number	US-201414557239-A
Country	US
Kind code	B2
Filing date	Dec 1, 2014
Priority date	Jul 8, 2014
Publication date	Apr 11, 2017
Grant date	Apr 11, 2017

Abstract

A coolant control valve of an engine may include a cylindrical valve in which a space is formed along a length directional center axis thereof, a first inlet through which a coolant flows being formed at one end of the cylindrical valve, an outlet being formed at an outer surface of the cylindrical valve in the space, a first convex surface and a second convex surface and a second inlet through which the coolant flows into the space being formed at the outer surface corresponding to a recess portion formed between the first convex surface and the second convex surface, a valve housing, a first inflow pipe transmitting the coolant to the space through the first inlet, a second inflow pipe transmitting the coolant to the space through the second inlet, and a driver provided at one side of the valve housing to rotate the cylindrical valve.

First claim

What is claimed is:

1. A coolant control valve of an engine, comprising:
a cylindrical valve in which a space is formed along a length directional center axis thereof, a first inlet through which a coolant flows being formed at one end of the cylindrical valve, an outlet being formed at an outer surface of the cylindrical valve in the space, a first convex surface and a second convex surface being sequentially formed along the length direction in an exterior circumferential surface of the cylindrical valve and a second inlet through which the coolant flows into the space being formed at the outer surface corresponding to a recess portion formed between the first convex surface and the second convex surface;
a valve housing in which the cylindrical valve is provided to be rotatable with respect to the center axis;
a first inflow pipe connected to the valve housing and transmitting the coolant to the space through the first inlet;
a second inflow pipe connected to the valve housing and transmitting the coolant to the space through the second inlet; and
a driver provided at one side of the valve housing to rotate the cylindrical valve with respect to the center axis.

2. The coolant control valve of the engine of claim 1 , further comprising:
an outlet pipe connected to the valve housing corresponding to the outlet and transmitting the coolant from the space to the outside through the outlet;
a sealing member to which an end of the outlet pipe is inserted, and a front end surface of the sealing member is formed to correspond to one of the first convex surface or the second convex surface of the cylindrical valve; and
an elastic member elastically supporting the sealing member so as to be closely attached to one of the first convex surface and the second convex surface.

3. The coolant control valve of the engine of claim 2 , wherein one of the first inflow pipe or the second inflow pipe is connected with a right cylinder bank and a right cylinder head, and the other of the first inflow pipe or the second inflow pipe is connected with a left cylinder bank and a left cylinder head.

4. The coolant control valve of the engine of claim 2 , wherein the sealing member has a cylindrical pipe structure in which a front end of the outlet pipe is inserted, and the elastic member is a wave spring provided along an exterior circumferential surface of the outlet pipe to elastically support the sealing member.

5. The coolant control valve of the engine of claim 2 , wherein a curved surface having a predetermined curvature radius for inflow of the coolant is formed at an edge where the second inlet is formed in the outer surface of the cylindrical valve.

6. The coolant control valve of claim 2 , wherein the driver includes:
a motor housing provided adjacent to the valve housing; and
a motor installed in the motor housing to rotate the cylindrical valve.

7. The coolant control valve of claim 2 , wherein the first convex surface, the second convex surface, and the recess portion are sequentially formed along a rotation direction of the cylindrical valve, and the second inlet is formed with a predetermined gap along the recess portion.

8. The coolant control valve of the engine of claim 2 , wherein the outlet includes a first outlet and a second outlet, and the outlet pipe includes a first outlet pipe corresponding to the first outlet and a second outlet pipe corresponding to the second outlet.

9. The coolant control valve of the engine of claim 8 , wherein one of the first outlet pipe or the second outlet pipe is connected with a radiator that cools the coolant, and the other of the first outlet pipe or the second outlet pipe is connected with several cooling lines including to a heater heating air inside a vehicle, to a throttle body disposed to control an amount of intake, to an automatic transmission fluid warmer provided to heat transmission oil.

Assignees

• Hyundai Motor Co Ltd
• Kia Motors Corp

Inventors

• Lee Philgi

Classifications

• F01P3/20

  Cooling circuits not specific to a single part of engine or machine (F01P3/22 takes precedence) · CPC title

• F01P7/14 Primary

  the coolant being liquid · CPC title

• F16K11/0876 Primary

  one connecting conduit having the same axis as the spindle · CPC title