Accession Number : ADD007645

Title :   Hydraulic Decelerator with Segmented Cylinder.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE AIR FORCE WASHINGTON DC

Personal Author(s) : Kilian,John P ; Brown,A

Report Date : 30 Sep 1980

Pagination or Media Count : 7

Abstract : This patent discloses 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. (Author)

Descriptors :   *Patents, *Hydraulic equipment, *Deceleration, *Cylindrical bodies, *Segmented, Rust(Oxidation), Water brakes, Inserts, Boreholes, Rods, Patterns, Inventions, Plugs, Pistons, Rings

Subject Categories : Surface Transportation and Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE