Three-dimensional fluidic check device

1. A monolithic three-dimensional fluidic check device comprising:

a housing surrounding a fluidic flow path and having a first opening at a first end of the housing and a second opening at a second end of the housing; and

an elongated center body positioned within and extending along the fluidic flow path, wherein the elongated center body is stationary relative to a flow of fluid,

wherein the housing comprises a first plurality of fins extending from the housing into the fluidic flow path, wherein the first plurality of fins is integral to the housing,

wherein the elongated center body comprises a second plurality of fins extending from the elongated center body into the fluidic flow path, wherein the second plurality of fins is integral to the elongated center body, and

wherein each of the first plurality of fins and each of the second plurality of fins has a respective concave curvature facing the second end.

2. The monolithic three-dimensional fluidic check device of claim 1 , wherein the first plurality of fins and the second plurality of fins are configured to create a flow direction from the first end to the second end and a checked direction from the second end to the first end.

3. The monolithic three-dimensional fluidic check device of claim 1 , wherein each of the first plurality of fins and each of the second plurality of fins has a respective substantially straight surface facing the first end.

4. The monolithic three-dimensional fluidic check device of claim 1 , wherein a first distance from a point of one of the first plurality of fins to the elongated center body measured perpendicular to a centerline extending through the fluidic flow path is substantially the same as a second distance from a point of one of the second plurality of fins to the housing measured perpendicular to the centerline extending through the fluidic flow path.

5. The monolithic three-dimensional fluidic check device of claim 1 , wherein the first plurality of fins and the second plurality of fins are configured to produce a Coanda effect for fluid moving from the second end to the first end within the fluidic flow path.

6. The monolithic three-dimensional fluidic check device of claim 1 , wherein a difference between a first measurement from a point of one of the first plurality of fins to a centerline of the elongated center body and a second measurement from a point of one of the second plurality of fins to the centerline of the elongated center body is negative.

7. The monolithic three-dimensional fluidic check device of claim 1 , wherein a difference between a first measurement from a point of one of the first plurality of fins to a centerline of the elongated center body and a second measurement from a point of one of the second plurality of fins to the centerline of the elongated center body is positive.

8. The monolithic three-dimensional fluidic check device of claim 1 , wherein the fluidic flow path is formed and bounded by the housing including the first plurality of fins and the elongated center body including the second plurality of fins.

9. The monolithic three-dimensional fluidic check device of claim 1 , wherein the housing and the elongated center body are formed of a material configured to allow changing a shape of the housing.

10. A three-dimensional fluidic check device comprising:

a housing containing a fluidic flow path formed by the housing and an elongated center body, wherein the housing comprises a first plurality of fins extending from the housing into the fluidic flow path; and

the elongated center body surrounded by the fluidic flow path, wherein the elongated center body comprises a second plurality of fins extending from the elongated center body into the fluidic flow path, wherein the first plurality of fins and the second plurality of fins are configured to allow flow of a fluid in a flow direction through the housing and to restrict flow of the fluid in a checked direction,

wherein each of the first plurality of fins and each of the second plurality of fins has a respective restrictive surface restricting flow of fluid in the checked direction, and wherein each respective restrictive surface is a concave curvature.

11. The three-dimensional fluidic check device of claim 10 , wherein the first plurality of fins overlaps the second plurality of fins.

12. The three-dimensional fluidic check device of claim 10 , wherein each of the first plurality of fins and each of the second plurality of fins has a respective allowance surface allowing flow of fluid in the flow direction.

13. A method comprising:

flowing a fluid through a fluidic flow path of a three-dimensional fluidic check device from a first opening at a first end of a housing of the three-dimensional fluidic check device to a second opening at a second end of the housing; and

checking the fluid from moving from the second opening to the first opening by directing momentum of the fluid using only the housing and an elongated center body positioned within and extending along the fluidic flow path to restrict a flow of the fluid from the second opening to the first opening,

wherein checking the fluid from moving from the second opening to the first opening by directing momentum of the fluid comprises directing momentum of the fluid to restrict a flow of the fluid using a first plurality of fins extending from the housing into the fluidic flow path and a second plurality of fins extending from the elongated center body into the fluidic flow path, wherein the first plurality of fins is integral to the housing and wherein the second plurality of fins is integral to the elongated center body, and

wherein directing momentum of the fluid to restrict a flow of the fluid using a first plurality of fins extending from the housing into the fluidic flow path and a second plurality of fins extending from the elongated center body into the fluidic flow path comprises directing momentum of the fluid using a respective concave curvature of each of the first plurality of fins and each of the second plurality of fins facing the second opening.

14. The method of claim 13 , further comprising:

changing a shape of the housing by bending the three-dimensional fluidic check device.