Diesel hammer pile driver

Abstract

A diesel hammer pile driver has a cylinder, a piston displaceably guided in the cylinder and a striker displaceably guided in the cylinder. The striker is disposed underneath the piston in the operating position of the diesel hammer pile driver. A combustion chamber is delimited axially by a face surface of the striker that lies in the interior of the cylinder and by a face surface of the piston, and opens into a fuel feed device connected with a fuel tank disposed on the outside of the cylinder. Using the fuel feed device a predetermined amount of fuel can be introduced into the combustion chamber during each working cycle. The fuel tank is elastically mounted on the cylinder.

What is claimed is: 
     
         1 . A diesel hammer pile driver comprising:
 (a) a cylinder having an interior;   (b) a fuel tank elastically mounted on an outside portion of the cylinder;   (c) a fuel feed device connected with the fuel tank;   (d) a piston displaceably guided in the cylinder and having a piston face surface;   (e) a striker displaceably guided in the cylinder and disposed underneath the piston in an operating position, said striker having a striker face surface lying in the interior of the cylinder; and   (f) a combustion chamber delimited axially by the striker face surface and by the piston face surface and opening into the fuel feed device for introduction of a predetermined amount of fuel into the combustion chamber via the fuel feed device during each working cycle.   
     
     
         2 . The diesel hammer pile driver according to  claim 1 , wherein the fuel tank is elastically mounted on the cylinder by vibration elements. 
     
     
         3 . The diesel hammer pile driver according to claim  2 , wherein the vibration elements are disposed so that vibrations from the piston are absorbed by the vibration elements in a vertical direction. 
     
     
         4 . The diesel hammer pile driver according to  claim 2 , further comprising first and second crosspieces disposed on the outside portion of the cylinder, parallel to one another, wherein the fuel tank is attached to the first and second crosspieces by way of the vibration elements. 
     
     
         5 . The diesel hammer pile driver according to  claim 3 , further comprising first and second crosspieces disposed on the outside portion of the cylinder, parallel to one another, wherein the fuel tank is attached to the first and second crosspieces by way of the vibration elements. 
     
     
         6 . The diesel hammer pile driver according to  claim 2 , wherein the vibration elements comprise elastomer parts or rubber parts. 
     
     
         7 . The diesel hammer pile driver according to  claim 3 , wherein the vibration elements comprise elastomer parts or rubber parts. 
     
     
         8 . The diesel hammer pile driver according to  claim 4 , wherein the vibration elements comprise elastomer parts or rubber parts.