Accumulator having fluid-lubricated seals

Details Accumulator having fluid-lubricated seals Accumulator having fluid-lubricated seals

F - Mech Eng,Light,Heat,Weapons

16

L

138/96

F16L 55/04 (2006.01) F15B 1/24 (2006.01)

Patent

CA 1271690

ACCUMULATOR HAVING FLUID-LUBRICATED SEALS ABSTRACT OF THE DISCLOSURE The accumulator comprises a housing (12, 212) having a bore (16, 216) extending longitudinally within the housing (12, 212), a piston (26, 226) disposed slidably within the bore (16, 216) and dividing the bore (16, 216) into first (18, 218) and second (20, 220) chambers. The piston (26, 226) has a bore (30, 230) with a bore opening (36, 236) at the first piston end (27, 227), the bore opening (36, 236) being enclosed by a sleeve member (70, 271). The sleeve member (70, 271) extends longitudinally away from the piston bore (30, 230) and into the first chamber (18, 218), the sleeve member (70, 271) having a sleeve opening (78, 273) permitting high pressure fluid contained within the first chamber (18, 218) to communicate freely with the piston bore (30, 230). A lubricating fluid (60, 260) is disposed about the first piston end (27, 227) and is prevented from entering into the piston bore (30, 230) by means of the sleeve member (70, 271). The sleeve member (271) may be biased away from the piston (226) by means of a spring (288) disposed within the piston bore (230).

538227

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