Method to make independant from piston wear the fluid tight...

Details Method to make independant from piston wear the fluid tight... Method to make independant from piston wear the fluid tight...

F - Mech Eng,Light,Heat,Weapons

15

B

137/89

F15B 13/02 (2006.01) B25D 9/14 (2006.01)

Patent

CA 1327740

ABSTRACT The method consists in applying to a hydraulic appliance, for example a hydraulic hammer, a sleeve-like slide cylindrical element having an inner diameter D5 that allows the coaxial movements of the piston in opposite directions without Knocking against it, and an external diameter D1 equal to the. diameter of the cylindrical chamber in which the piston enters to be actuated by the pressure, so as to act as a liner of the same chamber and of the same piston. Furthermore, the method consists in causing the alternative motion of the sleeve only by the pressure of the fluid, every- time the leading circular edge of the section of the pressure actuated piston makes a fluid tight seal with the leading circular edge of inner surface of element .

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