Patent ID: 6422370
Filing Date: 2002-07-23
Classification: F16D,Y10S

Abstract:
A hydraulically controlled declutching device (10) for a clutch, for acting on a clutch disengagement means, and comprising an external body (32) for fastening the declutching device on a fixed part, an axially oriented annular blind cavity (36) defined by a guide tube (20) which is delimited radially outwardly by an outer tube (68), a guiding profile of said guide tube is followed by the external body (32), and further comprising a piston (18) which penetrates into the blind cavity (36) so as to define a variable volume control chamber, wherein the outer tube (68) includes an orifice (42) for feeding fluid to the chamber, which is connected to a feed duct (26) that is in communication, with a bore (72) of the external body (32, 22) the orientation of which is generally radial and which is formed facing the feed orifice (42) of the outer tube (68), through a tubular element (78) sealingly attached to and mounted in the bore (72), wherein the radially outer end (102) of the tubular element (78) is blind, and in that the feed duct (26) is connected to a through hole (100) of the external body (32, 94) which is open transversely into the bore (72) in line with a passage (108) formed in the wall (106) of the tubular sealing element (78).