Self-regulating vents for vehicles

Patent metadata

Field	Value
Publication number	US-11143150-B2
Application number	US-201916450075-A
Country	US
Kind code	B2
Filing date	Jun 24, 2019
Priority date	Jun 24, 2019
Publication date	Oct 12, 2021
Grant date	Oct 12, 2021

Abstract

A vehicle is disclosed that includes a hood defining at least one opening, and a vent that is positioned within the at least one opening. The vent is reconfigurable between a closed configuration, in which the vent substantially (if not entirely) prevents air flow through the at least one opening in the hood, and at least one open configuration, in which the vent allows air flow through the at least one opening in the hood. The vent includes an integrated shape memory material such that, upon actuation, the shape memory material deforms to thereby reconfigure the vent.

First claim

What is claimed is:

1. A vehicle, comprising:
a hood defining at least one opening; and
a vent positioned within the at least one opening, the vent including at least one movable vane such that the vent is reconfigurable between a closed configuration, in which the at least one vane substantially prevents air flow through the at least one opening in the hood, and at least one open configuration, in which the at least one vane allows air flow through the at least one opening in the hood, the vent including a shape memory material integrated into the at least one vane such that, upon actuation, the shape memory material deforms to thereby move the at least one vane and reconfigure the vent.

2. The vehicle of claim 1 , wherein the vent further includes:
a body,
the at least one vane being movable in relation to the body between a plurality of positions to thereby reconfigure the vent between the closed configuration and the at least one open configuration.

3. The vehicle of claim 2 , wherein the at least one vane is connected to the body such that the at least one vane is pivotable in relation to the body.

4. The vehicle of claim 1 , wherein the at least one vane includes a plurality of vanes.

5. The vehicle of claim 4 , wherein the plurality of vanes are dissimilar.

6. The vehicle of claim 5 , wherein the plurality of vanes includes a first vane defining a first surface area and a second vane defining a second surface area, the second surface area being less than the first surface area.

7. The vehicle of claim 2 , wherein the vent further includes:
a thermal bridge extending from the body, the thermal bridge being configured to transfer heat from a heat source in the vehicle to the at least one vane.

8. The vehicle of claim 7 , wherein the shape memory material is heat-activated, the vent including a thermally conductive material such that heat is transferable from the heat source in the vehicle to the at least one vane via the thermal bridge.

9. The vehicle of claim 1 , wherein the vent further includes:
an inlet conduit configured to direct air flow into an engine of the vehicle.

10. The vehicle of claim 9 , wherein the inlet conduit is configured such that air is flowable across the at least one vane and into the inlet conduit when the vent is in the at least one open configuration.

11. A vent configured for connection to a hood of a vehicle, the vent comprising:
a body;
at least one vane movable in relation to the body such that the vent is reconfigurable between a first configuration, in which the vent substantially prevents air flow therethrough, and a second configuration, in which the vent allows air flow therethrough; and
a thermal bridge extending from the body, the thermal bridge being configured to transfer heat from a heat source in the vehicle to the at least one vane.

12. The vent of claim 11 , wherein the vent includes an integrated, heat-activated shape memory material such that, upon reaching a thermal threshold, the shape memory material deforms to thereby reconfigure the vent from the first configuration to the second configuration.

13. The vent of claim 12 , wherein the vent includes a material of construction that is thermally conductive, the shape memory material being integrated into the material of construction of the at least one vane.

14. The vehicle of claim 13 , wherein the at least one vane is pivotable in relation to the body.

15. The vehicle of claim 14 , wherein the at least one vane includes a plurality of vanes.

16. The vehicle of claim 13 , wherein the vent further includes:
an inlet conduit configured to direct air flow into an engine of the vehicle, the inlet conduit being configured such that air is flowable across the at least one vane and into the inlet conduit when the vent is in the second configuration.

17. A method of varying airflow through an opening in a hood of a vehicle, the method comprising:
reconfiguring a vent positioned within the opening in the hood via thermal activation of a shape memory material integrated into at least one vane of the vent.

18. The method of claim 17 , wherein reconfiguring the vent includes moving the vent between a closed configuration, in which the vent substantially prevents air flow through the opening in the hood, and at least one open configuration, in which the vent allows air flow through the opening in the hood.

19. The method of claim 18 , wherein moving the vent between the closed configuration and the at least one open configuration includes pivoting the at least one vane in relation to a body of the vent.

Assignees

• Nissan North America Inc

Inventors

• Zhao Nanzhu
• Dale Nilesh
• Fukumoto Takafumi

Classifications

• F03G7/06147

  Magnetic shape memory alloys, e.g. ferro-magnetic alloys · CPC title

• F16K31/002

  actuated by temperature variation (thermo-electric F16K31/025) · CPC title

• F03G7/0614

  using shape memory elements · CPC title

• B60K11/085

  with adjustable shutters or blinds · CPC title

• B62D29/00

  Superstructures, {understructures, or sub-units thereof,} characterised by the material thereof {(B62D33/044, B62D33/048 take precedence)} · CPC title