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US 10,852,081 B2Granted
Baffled-tube ram accelerator
AssigneeUniversity of Washington
InventorsCarl Knowlen, Adam P. Bruckner, Andrew J. Higgins, Viggo Hansen
Life of this patent
Estimating the term…
Abstract
A baffled ram accelerator system includes a ram accelerator tube with an inner surface and an outer surface and a plurality of baffles disposed on the inner surface. The plurality of baffles forms a sequential series of propellant chambers along the longitudinal axis of the ram accelerator tube. An accelerator gun is also disposed on an input end of the ram accelerator tube, and the accelerator gun is positioned to fire a projectile into the ram accelerator tube.
Claims17
A ram accelerator system, comprising:
- a first hollow cylinder;
- a second hollow cylinder, wherein the second hollow cylinder is perforated with uniformly spaced holes along the longitudinal axis of the second hollow cylinder, and wherein the second hollow cylinder is sized to be inserted within the first hollow cylinder such that the uniformly spaced holes in the second hollow cylinder are capped by an inner surface of the first hollow cylinder to form baffles, wherein the first hollow cylinder and the second hollow cylinder form a ram accelerator tube, and wherein the uniformly spaced holes are arranged into a helix along the longitudinal axis of the second hollow cylinder;
- and
- an accelerator gun disposed on an input end of the ram accelerator tube, wherein the accelerator gun is positioned to fire a projectile into the ram accelerator tube.
1 more element
A ram accelerator system, comprising:
- a first hollow cylinder;
- a second hollow cylinder, wherein the second hollow cylinder is perforated with uniformly spaced holes along the longitudinal axis of the second hollow cylinder, and wherein the second hollow cylinder is sized to be inserted within the first hollow cylinder such that the uniformly spaced holes in the second hollow cylinder are capped by an inner surface of the first hollow cylinder to form baffles, wherein the first hollow cylinder and the second hollow cylinder form a ram accelerator tube, wherein the baffles form an isogrid baffle pattern;
- and
- an accelerator gun disposed on an input end of the ram accelerator tube, wherein the accelerator gun is positioned to fire a projectile into the ram accelerator tube.
1 more element
A ram accelerator system, comprising:
- a first hollow cylinder;
- a second hollow cylinder, wherein the second hollow cylinder is perforated with uniformly spaced holes along the longitudinal axis of the second hollow cylinder, and wherein the second hollow cylinder is sized to be inserted within the first hollow cylinder such that the uniformly spaced holes in the second hollow cylinder are capped by an inner surface of the first hollow cylinder to form baffles, wherein the first hollow cylinder and the second hollow cylinder form a ram accelerator tube, wherein the uniformly spaced holes taper from smaller to larger from an inner surface of the second hollow cylinder to an outer surface of the second hollow cylinder;
- and
- an accelerator gun disposed on an input end of the ram accelerator tube, wherein the accelerator gun is positioned to fire a projectile into the ram accelerator tube.
1 more element
Dependencies are inferred from the claim text.