EP 2924171 B1 20160713 - Pile driving hammer
Title (en)
Pile driving hammer
Title (de)
Rammhammer
Title (fr)
Marteau batteur
Publication
Application
Priority
EP 14162394 A 20140328
Abstract (en)
[origin: CN104947667A] A pile hammer includes a cylinder (1); a piston (2) displaceably guided in the cylinder (1); a striker (3) displaceably guided in the cylinder (1) and disposed underneath the piston (2) in the operating position of the pile hammer; a combustion chamber (12) delimited axially by a face surface (30) of the striker (3) that lies in the interior of the cylinder (1) and by a face surface (21) of the piston (2); and at least one fuel feed device, through which a predetermined amount of fuel can be introduced into the combustion chamber (12) during each work cycle. The pile hammer is characterized in that the piston (2) has a cavity (24) that is filled, at least in part, with a movable filler.
IPC 8 full level
E02D 7/12 (2006.01)
CPC (source: EP US)
E02D 7/125 (2013.01 - EP US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 2924171 A1 20150930; EP 2924171 B1 20160713; CN 104947667 A 20150930; US 2015275458 A1 20151001
DOCDB simple family (application)
EP 14162394 A 20140328; CN 201510138543 A 20150327; US 201514663549 A 20150320