Coolant control valve

Patent metadata

Field	Value
Publication number	US-2025383022-A1
Application number	US-202519238552-A
Country	US
Kind code	A1
Filing date	Jun 16, 2025
Priority date	Jun 18, 2024
Publication date	Dec 18, 2025
Grant date	—

Abstract

A coolant control valve includes an electric actuator and a valve housing having a first housing and a second housing. The first housing includes a first fluid chamber, at least one inlet, and at least one outlet. The second housing includes a second fluid chamber, at least one inlet and at least one outlet. A rotary ball valve is disposed within the first fluid chamber and actuated about a first axis by the electric actuator. A rotary disc valve, having at least one fluid opening, is disposed within the second fluid chamber and non-rotatably coupled to the rotary ball valve.

First claim

What is claimed is:

1 . A coolant control valve comprising:
an electric actuator; a valve housing comprising:
a first housing having:
at least one inlet and at least one outlet; and
a first fluid chamber; and

a second housing sealingly engaged with the first housing, the second housing having:
at least one inlet and at least one outlet; and
a second fluid chamber axially adjacent to the first fluid chamber;

a rotary ball valve disposed within the first fluid chamber and actuated about a first axis by the electric actuator, the rotary ball valve having at least one fluid opening; and a rotary disc valve disposed within the second fluid chamber and non-rotatably coupled to the rotary ball valve, the rotary disc valve having at least one fluid opening.

2 . The coolant control valve of claim 1 , wherein the first housing is arranged between the electric actuator and the second housing in an axial direction.

3 . The coolant control valve of claim 1 , wherein a wall of one of the first housing or the second housing separates the first fluid chamber from the second fluid chamber.

4 . The coolant control valve of claim 2 , wherein the rotary disc valve is disposed in the first fluid chamber and the second fluid chamber.

5 . The coolant control valve of claim 1 , wherein the at least one inlet of the first housing comprises a first inlet extending through the second housing.

6 . The coolant control valve of claim 5 , wherein the first housing further comprises a first outlet, and the first inlet is disposed radially inwardly of the first outlet.

7 . The coolant control valve of claim 1 , wherein the at least one outlet of the first housing comprises a first outlet extending through the second housing.

8 . The coolant control valve of claim 7 , wherein the first outlet is sealingly isolated from the second fluid chamber.

9 . A coolant control valve comprising:
an electric actuator; a rotary valve configured to be actuated about a first axis by the electric actuator, the rotary valve having:
a first rotary valve having a hollow body defining an internal fluid chamber, the internal fluid chamber configured to receive fluid in a first axial direction and exit fluid in a radial direction;
a second rotary valve non-rotatably coupled to the first rotary valve, the second rotary valve having a disc portion configured to receive fluid in the first axial direction and exit fluid in a second axial direction opposite to the first axial direction; and
the electric actuator, the first rotary valve, and the second rotary valve stacked axially along the first axis.

10 . The coolant control valve of claim 9 , wherein the first rotary valve is disposed within a first fluid chamber, and the second rotary valve is disposed within a second fluid chamber separate from the first fluid chamber.

11 . The coolant control valve of claim 10 , further comprising:
a first housing defining the first fluid chamber; and a second housing defining the second fluid chamber; and the disc portion includes at least one fluid opening extending through the disc portion, the at least one fluid opening configured to be in selective fluid communication with at least one outlet of the second housing.

12 . The coolant control valve of claim 11 , wherein:
the second housing further comprises a first inlet fluid opening configured to receive fluid into the second fluid chamber; the disc portion further comprises:
a first fluid opening configured to receive fluid from the first inlet fluid opening; and
a second fluid opening configured to exit fluid from the second fluid chamber.

13 . The coolant control valve of claim 12 , wherein the second housing further comprises at least two outlets, and the second fluid opening is configured to rotate so as to selectively vary an overlap between the second fluid opening and two of the at least two outlets.

14 . The coolant control valve of claim 12 , wherein the second housing further comprises three outlets, and the second fluid opening is configured to fluidly connect at least two different pairs of the three outlets to the first inlet fluid opening.

15 . A coolant control valve comprising:
an electric actuator; a housing having:
at least one inlet;
at least one outlet;
a first fluid chamber; and
a second fluid chamber axially adjacent to the first fluid chamber;
a rotary hollow body valve disposed in the first fluid chamber and configured to be actuated about a first axis by the electric actuator; a rotary disc valve non-rotatably coupled to the rotary hollow body valve, the rotary disc valve comprising a disc portion disposed in the second fluid chamber so as to divide the second fluid chamber into a third fluid chamber and a fourth fluid chamber, the fourth fluid chamber axially adjacent to the third fluid chamber, the disc portion having:
a first fluid opening configured to: i) receive fluid from one of the at least one inlet or one of the at least one outlet arranged in the third fluid chamber, and ii) deliver the fluid to the fourth fluid chamber; and
a second fluid opening configured to receive fluid from the fourth fluid chamber via the first fluid opening and deliver the fluid to: i) a first one and a second one of the at least one outlet arranged in the third fluid chamber, or ii) a first one and a second one of the at least one inlet arranged in the third fluid chamber.

16 . The coolant control valve of claim 15 , wherein the fourth fluid chamber is arranged between the first fluid chamber and the third fluid chamber in an axial direction.

17 . The coolant control valve of claim 15 , wherein the second fluid opening is configured to selectively throttle a fluid flow, via the electric actuator, to: i) the first one of the at least one outlet and to the second one of the at least one outlet, or ii) the first one of the at least one inlet and to the second one of the at least one inlet.

18 . The coolant control valve of claim 15 , wherein:
in a first rotational position of the rotary disc valve, the second fluid opening is configured to deliver fluid only to: i) the first one of the at least one outlet, or ii) the first one of the at least one inlet; in a second rotational position of the rotary disc valve, the second fluid opening is configured to deliver fluid only to: i) the second one of the at least one outlet, or ii) the second one of the at least one inlet; and in a third rotational position of the rotary disc valve, the second fluid opening is configured to deliver throttled fluid to: i) the first one and the second one of the at least one outlet, or ii) the first one and the second one of the at least one inlet.

19 . The coolant control valve of claim 15 , wherein one of the at least one inlet or one of the at least one outlet extends axially through the second fluid chamber and a remaining one of the one of the at least one outlet or the one of the at least one outlet extends axially through the second fluid chamber.

20 . The coolant control valve of claim 15 , wherein the rotary disc valve comprises a tubular portion configured as one of the at least one inlet or one of the at least one outlet.

Assignees

• Schaeffler Technologies Ag

Inventors

• Gillespie Thomas

Classifications

• F16K31/042

  with electric means, e.g. for controlling the motor or a clutch between the valve and the motor · CPC title

• F16K5/0621 Primary

  with a spherical segment mounted around a supply pipe · CPC title