Tire Heat Exchange Features

• US 20150328932A1
• Filed: 12/10/2013
• Published: 11/19/2015
• Est. Priority Date: 12/20/2012
• Status: Abandoned Application

• Current Assignee: Bridgestone Americas Tire Operations LLC (Bridgestone Corporation)
• Original Assignee: Bridgestone Americas Tire Operations LLC (Bridgestone Corporation)
• Inventors: Steenwyk, Brian D.
• Application Number:
  US14/652,961
• Publication Number:
  US 20150328932A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: B60C 11/01 Shape of the shoulders between tread and sidewall, e.g. rounded, stepped or cantilevered
• CPC Class Codes: B60C 11/11 in which the raised area of the pattern consists only of isolated elements, e.g. blocks B60C11/12, B60C11/13 take precedence
• CPC Class Codes: B60C 13/02 Arrangement of grooves or ribs
• CPC Class Codes: B60C 23/19 for dissipating heat
• CPC Class Codes: B60C 5/00 Inflatable pneumatic tyres or inner tubes B60C1/00, B60C9/00 - B60C17/00 take precedence
• CPC Class Codes: B60C 99/00 Subject matter not provided for in other groups of this subclass

Abstract

Provided is a pneumatic tire comprising an axis of operational rotation; a tread defining a cylindrical exterior surface extending both along and around the axis; a first sidewall defining a first sidewall exterior surface; a first shoulder region defining a first shoulder exterior surface; a heat exchange feature on the first shoulder region adapted to modify air flow over an exterior surface; a second sidewall defining a second sidewall exterior surface; a second shoulder region defining a second shoulder exterior surface; and a heat exchange feature on the second shoulder region adapted to modify air flow over an exterior surface. The heat exchange features on the first and second shoulder regions may be adapted to move air during clockwise operational rotation; or the heat exchange features on the first and second shoulder regions may be adapted to move air during counter-clockwise operational rotation.

Claims

1-15. -15. (canceled)

16. A pneumatic tire comprising:

an axis of operational rotation, said operational rotation being either clockwise or counter-clockwise;

a tread defining a substantially cylindrical exterior surface extending both along the axis and around the axis, said tread comprising a tread pattern defined by a tread feature;

a first sidewall defining a first sidewall exterior surface;

a first shoulder region defining a first shoulder exterior surface, said first shoulder region being defined by an area between said tread and said first sidewall;

a heat exchange feature on said first shoulder region adapted to modify air flow over an exterior surface of the tire;

a second sidewall defining a second sidewall exterior surface;

a second shoulder region defining a second shoulder exterior surface, said second shoulder region being defined by an area between said tread and said second sidewall;

a heat exchange feature on said second shoulder region adapted to modify air flow over an exterior surface of the tire; and

wherein,

a) said heat exchange feature on said first shoulder region is adapted to move air during clockwise operational rotation, and said heat exchange feature on said second shoulder region is adapted to move air during clockwise operational rotation;

or

b) said heat exchange feature on said first shoulder region is adapted to move air during counter-clockwise operational rotation, and said heat exchange feature on said second shoulder region is adapted to move air during counter-clockwise operational rotation.

17. The pneumatic tire of claim 16, wherein

said tread feature is defined by a rib, a groove, slot, a block, or a sipe;

said heat exchange feature on said first shoulder region is defined by a rib, a groove, slot, a block, or a sipe; and

said heat exchange feature on said second shoulder region is defined by a rib, a groove, slot, a block, or a sipe.

18. The pneumatic tire of claim 17, wherein

said tread pattern is defined by a plurality of tread features;

said first shoulder region comprises a plurality of heat exchange features on said first shoulder region; and

said second shoulder region comprises a plurality of heat exchange features on said second shoulder region.

19. The pneumatic tire of claim 18, wherein

said plurality of heat exchange features on said first shoulder region,

are adapted to move air from the first shoulder region to the tread during clockwise operational rotation, and

are adapted to move air from the first shoulder region to the tread during counter-clockwise operational rotation;

and

said plurality of heat exchange features on said second shoulder region,

are adapted to move air from the second shoulder region to the tread during clockwise operational rotation, and

are adapted to move air from the second shoulder region to the tread during counter-clockwise operational rotation.

20. The pneumatic tire of claim 19, wherein

the heat exchange features on said first shoulder region gradually transition into the tread features;

or

the heat exchange features on said second shoulder region gradually transition into the tread features.

21. The pneumatic tire of claim 18, wherein

during operational rotation in a first direction,

said plurality of heat exchange features on said first shoulder region move air from the first shoulder region into one or more slots or grooves of the tread pattern, and

said plurality of heat exchange features on said second shoulder region move air from the second shoulder region into one or more slots or grooves of the tread pattern;

and

during operational rotation in a second direction opposite said first direction,

said plurality of heat exchange features on said first shoulder region do not move air from the first shoulder region into one or more slots or grooves of the tread pattern, and

said plurality of heat exchange features on said second shoulder region do not move air from the second shoulder region into one or more slots or grooves of the tread pattern.

22. The pneumatic tire of claim 21, wherein

the heat exchange features on said first shoulder region are integrally connected with, and transition into, analogous tread features;

or

the heat exchange features on said second shoulder region are integrally connected with, and transition into, analogous tread features.

23. The pneumatic tire of claim 22, wherein

the heat exchange features on said first shoulder region have a directional bias;

and

the heat exchange features on said second shoulder region have a directional bias.

24. The pneumatic tire of claim 23, wherein

the heat exchange features on said first shoulder region are curved;

and

the heat exchange features on said second shoulder region are curved.

25. A method of cooling a tread of a pneumatic tire comprising:

providing a pneumatic tire, said pneumatic tire comprising,

an axis of operational rotation, said operational rotation being either clockwise or counter-clockwise;

a tread defining a substantially cylindrical exterior surface extending both along the axis and around the axis, said tread comprising a tread pattern defined by a tread feature;

a first sidewall defining a first sidewall exterior surface;

a first shoulder region defining a first shoulder exterior surface, said first shoulder region being defined by an area between said tread and said first sidewall;

a heat exchange feature on said first shoulder region adapted to modify air flow over an exterior surface of the tire;

a second sidewall defining a second sidewall exterior surface;

a second shoulder region defining a second shoulder exterior surface, said second shoulder region being defined by an area between said tread and said second sidewall;

a heat exchange feature on said second shoulder region adapted to modify air flow over an exterior surface of the tire; and

wherein,

a) said heat exchange feature on said first shoulder region is adapted to move air during clockwise operational rotation, and said heat exchange feature on said second shoulder region is adapted to move air during clockwise operational rotation;

or

b) said heat exchange feature on said first shoulder region is adapted to move air during counter-clockwise operational rotation, and said heat exchange feature on said second shoulder region is adapted to move air during counter-clockwise operational rotation;

subjecting said tire to operational rotation, said operational rotation being either clockwise or counter-clockwise;

during said operational rotation, moving a first quantity of air with said heat exchange feature on said first shoulder region to the tread of the tire;

cooling said tread with said first quantity of air;

during said operational rotation, moving a second quantity of air with said heat exchange feature on said second shoulder region to the tread of the tire; and

cooling said tread with said second quantity of air.

26. The method of cooling a tread of a pneumatic tire of claim 25, wherein

said tread feature is defined by a rib, a groove, slot, a block, or a sipe;

said heat exchange feature on said first shoulder region is defined by a rib, a groove, slot, a block, or a sipe; and

said heat exchange feature on said second shoulder region is defined by a rib, a groove, slot, a block, or a sipe.

27. The method of cooling a tread of a pneumatic tire of claim 26, wherein

said tread pattern is defined by a plurality of tread features;

said first shoulder region comprises a plurality of heat exchange features on said first shoulder region; and

said second shoulder region comprises a plurality of heat exchange features on said second shoulder region.

28. The method of cooling a tread of a pneumatic tire of claim 27, wherein

said plurality of heat exchange features on said first shoulder region,

are adapted to move air from the first shoulder region to the tread during clockwise operational rotation, and

are adapted to move air from the first shoulder region to the tread during counter-clockwise operational rotation;

and

said plurality of heat exchange features on said second shoulder region,

are adapted to move air from the second shoulder region to the tread during clockwise operational rotation, and

are adapted to move air from the second shoulder region to the tread during counter-clockwise operational rotation.

29. The method of cooling a tread of a pneumatic tire of claim 28, wherein

the heat exchange features on said first shoulder region gradually transition into the tread features;

or

the heat exchange features on said second shoulder region gradually transition into the tread features.

30. The method of cooling a tread of a pneumatic tire of claim 27, wherein

during operational rotation in a first direction,

said plurality of heat exchange features on said first shoulder region move air from the first shoulder region into one or more slots or grooves of the tread pattern, and

said plurality of heat exchange features on said second shoulder region move air from the second shoulder region into one or more slots or grooves of the tread pattern;

and

during operational rotation in a second direction opposite said first direction,

said plurality of heat exchange features on said first shoulder region do not move air from the first shoulder region into one or more slots or grooves of the tread pattern, and

said plurality of heat exchange features on said second shoulder region do not move air from the second shoulder region into one or more slots or grooves of the tread pattern.

31. The method of cooling a tread of a pneumatic tire of claim 30, wherein

the heat exchange features on said first shoulder region are integrally connected with, and transition into, analogous tread features;

or

the heat exchange features on said second shoulder region are integrally connected with, and transition into, analogous tread features.

32. The method of cooling a tread of a pneumatic tire of claim 31, wherein

the heat exchange features on said first shoulder region have a directional bias;

and

the heat exchange features on said second shoulder region have a directional bias.

33. The method of cooling a tread of a pneumatic tire of claim 32, wherein

the heat exchange features on said first shoulder region are curved;

and

the heat exchange features on said second shoulder region are curved.

34. A pneumatic tire comprising:

an axis of operational rotation, said operational rotation being either clockwise or counter-clockwise;

a tread defining a substantially cylindrical exterior surface extending both along the axis and around the axis, said tread comprising a tread pattern defined by a plurality of tread features, said tread features defined by a rib, a groove, slot, a block, or a sipe;

a first sidewall defining a first sidewall exterior surface;

a first shoulder region defining a first shoulder exterior surface, said first shoulder region being defined by an area between said tread and said first sidewall;

a plurality of heat exchange features on said first shoulder region, wherein each heat exchange feature on said first shoulder region is adapted to modify air flow over an exterior surface of the tire, said heat exchange features on said first shoulder region defined by a rib, a groove, slot, a block, or a sipe, said plurality of heat exchange features on said first shoulder region,

being adapted to move air from the first shoulder region to the tread during clockwise operational rotation, and

being adapted to move air from the first shoulder region to the tread during counter-clockwise operational rotation;

a second sidewall defining a second sidewall exterior surface;

a second shoulder region defining a second shoulder exterior surface, said second shoulder region being defined by an area between said tread and said second sidewall;

a plurality of heat exchange features on said second shoulder region, wherein each heat exchange feature on said second shoulder region is adapted to modify air flow over an exterior surface of the tire, said heat exchange features on said second shoulder region defined by a rib, a groove, slot, a block, or a sipe, said plurality of heat exchange features on said second shoulder region,

being adapted to move air from the second shoulder region to the tread during clockwise operational rotation, and

being adapted to move air from the second shoulder region to the tread during counter-clockwise operational rotation; and

wherein,

a) said heat exchange feature on said first shoulder region is adapted to move air during clockwise operational rotation, and said heat exchange feature on said second shoulder region is adapted to move air during clockwise operational rotation;

or

said heat exchange feature on said first shoulder region is adapted to move air during counter-clockwise operational rotation, and said heat exchange feature on said second shoulder region is adapted to move air during counter-clockwise operational rotation; and

b) the heat exchange features on said first shoulder region gradually transition into the tread features;

or

the heat exchange features on said second shoulder region gradually transition into the tread features.

35. A pneumatic tire comprising:

an axis of operational rotation, said operational rotation being either clockwise or counter-clockwise;

a tread defining a substantially cylindrical exterior surface extending both along the axis and around the axis, said tread comprising a tread pattern defined by a plurality of tread features, said tread features defined by a rib, a groove, slot, a block, or a sipe;

a first sidewall defining a first sidewall exterior surface;

a first shoulder region defining a first shoulder exterior surface, said first shoulder region being defined by an area between said tread and said first sidewall;

a plurality of heat exchange features on said first shoulder region, wherein each heat exchange feature on said first shoulder region is adapted to modify air flow over an exterior surface of the tire, said heat exchange features on said first shoulder region,

are defined by a rib, a groove, slot, a block, or a sipe,

have a directional bias,

are curved,

are integrally connected with, and transition into, analogous tread features, and

during operational rotation in a first direction, said plurality of heat exchange features on said first shoulder region move air from the first shoulder region into one or more slots or grooves of the tread pattern, and

during operational rotation in a second direction opposite said first direction, said plurality of heat exchange features on said first shoulder region do not move air from the first shoulder region into one or more slots or grooves of the tread pattern, and

a second sidewall defining a second sidewall exterior surface;

a second shoulder region defining a second shoulder exterior surface, said second shoulder region being defined by an area between said tread and said second sidewall;

a plurality of heat exchange features on said second shoulder region, wherein each heat exchange feature on said second shoulder region is adapted to modify air flow over an exterior surface of the tire, said heat exchange features on said second shoulder region

are defined by a rib, a groove, slot, a block, or a sipe,

have a directional bias,

are curved,

are integrally connected with, and transition into, analogous tread features, and

during operational rotation in a first direction, said plurality of heat exchange features on said second shoulder region move air from the second shoulder region into one or more slots or grooves of the tread pattern; and

during operational rotation in a second direction opposite said first direction, said plurality of heat exchange features on said second shoulder region do not move air from the second shoulder region into one or more slots or grooves of the tread pattern; and

wherein,

said heat exchange feature on said first shoulder region is adapted to move air during clockwise operational rotation, and said heat exchange feature on said second shoulder region is adapted to move air during clockwise operational rotation;

or

said heat exchange feature on said first shoulder region is adapted to move air during counter-clockwise operational rotation, and said heat exchange feature on said second shoulder region is adapted to move air during counter-clockwise operational rotation.