Cooling system valve

Patent metadata

Field	Value
Publication number	US-11053837-B2
Application number	US-201716467657-A
Country	US
Kind code	B2
Filing date	Nov 28, 2017
Priority date	Dec 9, 2016
Publication date	Jul 6, 2021
Grant date	Jul 6, 2021

Abstract

The present invention relates to a cooling system valve ( 24 ) for an internal combustion engine cooling system ( 12 ), the internal combustion engine cooling system ( 12 ) comprising a radiator ( 14 ) and a coolant passage ( 16 ) adapted to cool at least a portion of an internal combustion engine ( 18 ), the cooling system valve ( 24 ) being adapted to be located between the radiator ( 14 ) and the coolant passage ( 16 ), as seen in an intended direction of flow from the radiator ( 14 ) to the coolant passage ( 16 ). The cooling system valve ( 24 ) is adapted to automatically assume each one of at least the following conditions: —an open condition, allowing coolant transport from the radiator ( 14 ) towards the coolant passage ( 16 ) via the cooling system valve ( 24 ), and —a closed condition, preventing coolant transport in a direction from the coolant passage ( 16 ) towards the radiator ( 14 ) via the cooling system valve ( 24 ).

First claim

The invention claimed is:

1. A cooling system valve for an internal combustion engine cooling system, said internal combustion engine cooling system comprising a radiator and a coolant passage adapted to cool at least a portion of an internal combustion engine, said cooling system valve being adapted to be located between said radiator and said coolant passage, as seen in an intended direction of flow from said radiator to said coolant passage, said cooling system valve being adapted to automatically assume each one of at least the following conditions:
an open condition, allowing coolant transport from said radiator towards said coolant passage via said cooling system valve, and
a closed condition, preventing coolant transport in a direction from said coolant passage towards said radiator via said cooling system valve,
wherein said cooling system valve is adapted to automatically assume each one of said conditions in dependence of a pressure upstream said cooling system valve, as seen in an intended direction of flow from said radiator to said coolant passage, wherein said cooling system valve comprises a valve member and a valve housing, said valve member being moveable relative to said valve housing to thereby obtain said open and closed conditions, the position of said valve member relative to said valve housing being controlled by said pressure upstream said cooling system valve, wherein said valve member is adapted to pivot relative said valve housing, wherein said cooling system valve comprises a valve member actuator, adapted to move said valve member relative to said valve housing, said cooling system valve further comprising a pilot pressure conduit in fluid communication with said valve member actuator.

2. The cooling system valve according to claim 1 , wherein said cooling system valve is adapted to automatically assume said closed condition when said pressure upstream said cooling system valve is equal to or below a predetermined threshold value.

3. The cooling system valve according to claim 1 , wherein said pilot pressure conduit fluidly connects said valve member actuator to a portion of said cooling system valve upstream said valve member, as seen in an intended direction of flow from said radiator to said coolant passage.

4. The cooling system valve according to claim 1 , wherein said cooling system valve comprises an actuator chamber in fluid communication with said pilot pressure conduit, at least a portion of said valve member actuator delimiting said actuator chamber such that said valve member actuator can move in response to a pressure in said actuator chamber.

5. The cooling system valve according to claim 1 , wherein said valve member actuator is fixedly connected to said valve member, said valve member actuator being adapted to pivot in response to a pressure in said actuator chamber.

6. The cooling system valve according to claim 1 , wherein said valve member actuator is connected to said valve member via a transmission arrangement transferring a rectilinear motion of said valve member actuator into a pivot motion of said valve member, said valve member actuator being adapted to move rectilinearly in response to a pressure in said actuator chamber.

7. The cooling system valve claim 1 , wherein said valve member actuator is adapted to accommodate fluid fed from said pilot pressure conduit, said valve member actuator being adapted to deform in response to a pressure of the fluid accommodated in said valve member actuator.

8. The cooling system valve according to claim 7 , wherein said valve member actuator is fixedly connected to said valve member.

9. The cooling system valve according to claim 1 , wherein said cooling system valve comprises a biasing means adapted to bias said valve member towards said closed condition.

10. The cooling system valve according to claim 1 , wherein a coolant conduit is adapted to form part of an internal combustion engine cooling system comprising a radiator and a coolant passage adapted to cool at least a portion of an internal combustion engine, said coolant conduit being adapted to be located between said radiator and said coolant passage, as seen in an intended direction of flow from said radiator to said coolant passage, said coolant conduit comprising the cooling system valve.

11. The cooling system valve of claim 1 , wherein an internal combustion engine cooling system comprising a radiator and a coolant passage is adapted to cool at least a portion of an internal combustion engine, said internal combustion engine cooling system comprising the cooling system valve, said cooling system valve being located between said radiator and said coolant passage, as seen in an intended direction of flow from said radiator to said coolant passage.

12. The cooling system valve according to claim 11 , wherein said internal combustion engine cooling system further comprises a coolant pump adapted to circulate coolant in the internal combustion engine cooling system, said coolant pump being located between said radiator and said coolant passage, as seen in an intended direction of flow from said radiator to said coolant passage.

13. The cooling system valve according to claim 12 , wherein said cooling system valve is located between said radiator and said coolant pump, as seen in an intended direction of flow from said radiator to said coolant passage.

14. The cooling system valve according to claim 11 wherein an internal combustion engine assembly comprises an internal combustion engine and an internal combustion engine cooling system.

15. The cooling system valve according to claim 14 wherein the internal combustion engine assembly is located in a vehicle.

16. The cooling system valve of claim 10 , wherein an internal combustion engine cooling system comprising a radiator and a coolant passage is adapted to cool at least a portion of an internal combustion engine, said internal combustion engine cooling system comprising the coolant conduit, said cooling system valve being located between said radiator and said coolant passage, as seen in an intended direction of flow from said radiator to said coolant passage.

Assignees

• Volvo Truck Corp

Inventors

• Jonnalagadda Balu Rajasekar

Classifications

• F16K17/34

  in which the flow-energy of the flowing medium actuates the closing mechanism · CPC title

• F16K5/0647

  Spindles or actuating means · CPC title

• F01P2007/146

  using valves · CPC title

• F16K31/36

  in which fluid from the circuit is constantly supplied to the fluid motor · CPC title

• F01P11/04 Primary

  Arrangements of liquid pipes or hoses · CPC title