Hollow porous materials with architected fluid interfaces for reduced overall pressure loss
AssigneeHRL Laboratories, LLC
InventorsKevin J. Maloney, Christopher S. Roper
Life of this patent
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Abstract
A structure including a hollow porous material with an architected fluid interface to the hollow porous material and methods of forming the same. The architected fluid interface may be in the form of a manifold with tapered openings, each providing a gradually narrowing transition to the hollow channels within which fluid may flow through the hollow porous material. The material may be formed by forming an open-celled sacrificial scaffold, immersing one surface of the open-celled sacrificial scaffold in a bonding agent, attaching a face sheet to the surface to form a sacrificial scaffold assembly, coating the assembly with a coating material, and removing the sacrificial scaffold assembly.
Claims15
A structure comprising:
- a structure body, comprising a plurality of hollow channels, and
- a first manifold on a first surface of the structure body, the first manifold comprising a first plurality of tapered openings into the hollow channels, each tapered opening having a wide end and a narrow end, only the narrow ends of the tapered openings being connected to the hollow channels,
- the surface of each tapered opening having the shape of a meniscus,
- wherein the hollow channels interpenetrate each other at a plurality of hollow nodes,
- wherein the hollow channels, the hollow nodes, and the manifold form an integral structure, and
- wherein the hollow channels are hollow truss elements within a hollow three-dimensional micro-truss.
A structure comprising:
- a structure body, comprising a plurality of hollow channels, and
- a first manifold on a first surface of the structure body, the first manifold comprising a first plurality of tapered openings into the hollow channels, each tapered opening having a wide end and a narrow end, only the narrow ends of the tapered openings being connected to the hollow channels,
- wherein the hollow channels interpenetrate each other at a plurality of hollow nodes,
- wherein the hollow channels, the hollow nodes, and the manifold form a continuous structure without a joint, and
- wherein the hollow channels are hollow truss elements within a hollow three-dimensional micro-truss.
Dependencies are inferred from the claim text.