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AssigneeThe United States of America as represented by the Secretary of the Air Force
InventorsJohn P. Kilian, John A. Brown
Estimating the term…
A hydraulic decelerator having a waterbrake cylinder positioned within a reservoir wherein the cylinder is made up of a plurality of cylinder segments which are secured to a solid block member with four rods. The interfaces of the segments are ground and polished to provide a smooth close fit. Each segment includes bore holes in a predetermined pattern in the top and two sides with orifice or plug inserts being threaded into the holes. Internally threaded captive ring members are held between semicircular channels at the adjoining surfaces of the channels. Transition orifice inserts are threaded into the ring members. A frangible membrane is secured between the first segment and piston guide assembly secured to the first segment. The reservoir is filled with water, including a rust inhibiter, to a level of about 1/4 inch above the segmented waterbrake cylinder such as to completely fill the cylinder with water.
In a hydraulic decelerator system for use in the deceleration of a test sled having a ram piston which breaks a membrane over the entrance of a waterbrake cylinder and enters the cylinder to force water through a plurality of orifices in the waterbrake cylinder to thereby decelerate the test sled, a waterbrake cylinder assembly, comprising:
Dependencies are inferred from the claim text.