Patent ID: 8636128
Filing Date: 2014-01-28
Classification: F15B,F16D

Abstract:
1. A slave cylinder for a vibration-damped hydraulic force transmission system, comprising: a cylinder housing, a piston subassembly received in the cylinder housing to be longitudinally displaceable therein, the piston subassembly comprising a piston and a piston rod connected with the piston at least rigidly in tension and compression, the cylinder housing and the piston together bounding a pressure chamber for a pressure medium, pressure connection means provided in the cylinder housing and arranged to supply pressure medium to the pressure chamber so as to displace the piston in the cylinder housing and thus the piston rod to be effective in terms of actuation, an insert member inserted in the pressure chamber and secured in the pressure connection means, the insert member being equipped with pressure pulse reducing means for reducing pressure pulses in the pressure medium, the pressure pulse reducing means being constantly open to the pressure medium, wherein the insert member is of substantially pot-shaped construction comprising a shroud section and a base, and has a substantially hollow-cylindrical extension which is inserted into the pressure connection means of the cylinder housing and is connected with the insert member base, wherein the pressure pulse reducing means comprises an additional conduit path in the form of a channel with an opening towards the pressure chamber and an opening towards the pressure connection means, the channel having a length amounting to a multiple of the direct spacing between the two openings and having a helically extending helix section, and wherein the insert member further comprises an inner insert of substantially pot-shaped construction comprising an inner insert shroud section and an inner insert base together bounding an interior space in fluid connection with the pressure connection means, wherein formed between the shroud section of the insert member and the inner insert shroud section is a helically extending helix section prolongation in fluid connection at one end thereof with the helix section and at the other end thereof with the interior space of the inner insert.