Internal combustion engine fluid-metering valve assembly

Patent metadata

Field	Value
Publication number	US-2016003126-A1
Application number	US-201414766556-A
Country	US
Kind code	A1
Filing date	Feb 10, 2014
Priority date	Feb 19, 2013
Publication date	Jan 7, 2016
Grant date	—

Abstract

A fluid-metering valve assembly for use in a coolant regulator of an internal combustion engine cooling system may include a main body and a metering member. The main body is configured to be rotatably secured within an internal chamber of the coolant regulator. A fluid passage is formed through the main body, and is defined, at least in part, by a metering edge of the main body. The metering member is formed proximate to the metering edge of the main body, and is configured to allow variable doses of fluid to be metered into or out of the coolant regulator as the main body is rotated within the coolant regulator. The metering member includes one or more linear features formed into the main body.

First claim

1 . A fluid-metering valve assembly configured for use in a coolant regulator of an internal combustion engine cooling system, the fluid-metering valve assembly comprising:
a main body configured to be rotatably secured within an internal chamber of the coolant regulator, wherein a fluid passage is formed through the main body, wherein the fluid passage is defined, at least in part, by a metering edge of the main body; and a metering member formed proximate to the metering edge of the main body, wherein the metering member is configured to allow variable doses of fluid to be metered into or out of the coolant regulator as the main body is rotated within the coolant regulator, and wherein the metering member includes one or more linear features formed into the main body.

2 . The fluid-metering valve assembly of claim 1 , wherein the metering member is formed at the metering edge.

3 . The fluid-metering valve assembly of claim 1 , wherein the metering member includes a fluid inlet connected to a constricting fluid outlet, wherein the fluid inlet includes a fluid inlet opening defined between linear side walls and a perpendicular base, wherein the linear side walls connect to linear barrier inlet walls that are parallel to the metering edge, and wherein the linear barrier inlet walls connect to linear angled outlet walls of the constricting fluid outlet.

4 . The fluid-metering valve assembly of claim 3 , wherein the linear angled outlet walls converge toward a linear barrier outlet wall that is parallel with the metering edge.

5 . The fluid-metering valve assembly of claim 1 , wherein the metering member is T-shaped.

6 . The fluid-metering valve assembly of claim 1 , wherein the metering member slopes from a fluid inlet to a fluid outlet, wherein a first depth of the metering member at the fluid inlet is greater than a second depth of the metering member at the fluid outlet.

7 . The fluid-metering valve assembly of claim 1 , wherein the metering member comprises angled side walls that converge at a fluid outlet apex, and wherein the metering member forms a semi-funnel.

8 . The fluid-metering valve assembly of claim 1 , wherein the metering member includes a fluid inlet that connects to a fluid outlet having the same width as the fluid inlet.

9 . The fluid-metering valve assembly of claim 1 , wherein the metering edge is curved, and wherein at least one wall portion of the metering member is parallel to the curved metering edge.

10 . The fluid-metering valve assembly of claim 1 , wherein the metering member is offset from the metering edge.

11 . The fluid-metering valve assembly of claim 1 , wherein the metering member includes only the one or more linear features formed into the main body.

12 . An internal combustion engine cooling system, comprising:
a coolant regulator having an internal chamber; an actuator; and a fluid-metering valve assembly rotatably secured within the internal chamber and operatively connected to the actuator, wherein the actuator is configured to rotate the fluid metering valve assembly within the internal chamber, the fluid-metering valve assembly comprising:
a main body rotatably secured within the internal chamber and having a drive shaft operatively connected to the actuator, wherein a fluid passage is formed through the main body, wherein the fluid passage is defined, at least in part, by a metering edge of the main body; and
a metering member formed proximate to the metering edge of the main body, wherein the metering member is configured to allow variable doses of fluid to be metered into or out of the coolant regulator as the main body is rotated within the coolant regulator, and wherein the metering member includes one or more linear features formed into the main body.

13 . The internal combustion engine cooling system of claim 12 , wherein the metering member is formed at the metering edge.

14 . The internal combustion engine cooling system of claim 12 , wherein the metering member includes a fluid inlet connected to a constricting fluid outlet, wherein the fluid inlet includes a fluid inlet opening defined between linear side walls and a perpendicular base, wherein the linear side walls connect to linear barrier inlet walls that are parallel to the metering edge, wherein the linear barrier inlet walls connect to linear angled outlet walls of the constricting fluid outlet, and wherein the linear angled outlet walls converge toward a linear barrier outlet wall that is parallel with the metering edge.

15 . The internal combustion engine cooling system of claim 12 , wherein the metering member slopes from a fluid inlet to a fluid outlet, wherein a first depth of the metering member at the fluid inlet is greater than a second depth of the metering member at the fluid outlet.

16 . The internal combustion engine cooling system of claim 12 , wherein the metering member comprises angled side walls that converge at a fluid outlet apex, and wherein the metering member forms a semi-funnel.

17 . The internal combustion engine cooling system of claim 12 , wherein the metering member includes a fluid inlet that connects to a fluid outlet having the same width as the fluid inlet.

18 . The internal combustion engine cooling system of claim 12 , wherein the metering edge is curved, and wherein at least one wall portion of the metering member is parallel to the curved metering edge.

19 . The internal combustion engine cooling system of claim 12 , wherein the metering member is offset from the metering edge.

20 . The internal combustion engine cooling system of claim 12 , wherein the metering member includes only the one or more linear features formed into the main body.

Assignees

• Illinois Tool Works

Inventors

• Carns Christopher A
• Sawai Rohan R

Classifications

• F01P2005/125

  Driving auxiliary pumps electrically · CPC title

• F01P5/10

  Pumping liquid coolant; Arrangements of coolant pumps · CPC title

• F02B75/22

  with cylinders in V, fan, or star arrangement · CPC title

• F16K5/12

  Arrangements for modifying the way in which the rate of flow varies during the actuation of the valve · CPC title

• F01P2007/146

  using valves · CPC title