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US 4,308,924 AGranted
Hydraulic vibrator for moving a ramming and drawing body and a method of moving the same
AssigneeTunkers Maschinenbau GmbH
InventorKurt Boguth
Life of this patent
Estimating the term…
Abstract
A hydraulic vibrator for moving a ramming or drawing body or the like has a hydraulic working cylinder, a double-acting working piston axially movable in the hydraulic working cylinder, and a device for supplying a working medium into the hydraulic working cylinder, alternately at both axial sides of the working piston so that the working piston vibrates with selectively variable frequency and displaces the ramming and drawing body or the like.
Claims14
A hydraulic vibrator for moving a ramming and drawing body or the like, comprising a hydraulic working cylinder having an axis and an inner hollow;
- a double-acting working piston axially movable in said inner hollow of said hydraulic working cylinder, said working piston having two opposite axial end portions and subdividing said inner hollow of said cylinder into two cylinder chambers, said axial end portions of said piston having identical outer diameters and each extending into a respective one of said cylinder chambers, said cylinder chambers having identical inner diameters and being each provided with a through-going opening;
- and means for alternately supplying a working medium into said hydraulic working cylinder, alternately through said through-going openings into said cylinder chambers with feeding the working medium into one of said cylinder chambers and simultaneous withdrawal of the working medium from the other of said cylinder chambers, and vice versa, so that said working piston vibrates with selectively variable frequency and displaces a ramming and drawing body or the like.
Dependencies are inferred from the claim text.