Shock absorber support arrangement

Abstract

In a shock absorber support arrangement including a support bearing structure, a hydraulic cylinder which includes a piston and a cylinder which is hydraulically coupled to the support bearing structure, the support bearing structure having a housing including a force transmission means having a chamber which is filled with a hydraulic medium and is in communication with the cylinder, the hydraulic cylinder being connected to the support bearing structure so as to be axially movable over a certain extent as a result of friction forces effective between the piston and the cylinder wherein the load forces of the piston are transmitted via the hydraulic fluid in the cylinder and the support bearing structure directly to the force transmission means.

1 . A shock absorber support arrangement including a support bearing structure ( 7 ), a piston ( 6 ) in a hydraulic cylinder ( 1 ) which is coupled hydraulically to the support bearing structure ( 7 ), the support bearing structure ( 7 ) having a housing ( 10 ) which is filled completely with a hydraulic medium, the housing ( 10 ) being formed at least in certain areas by one of an elastomer cylinder and a folding bellows, and a hydraulic effective area (A L ) being arranged between the hydraulic cylinder ( 1 ) and support bearing structure ( 7 ), which remains essentially constant under the excursion of the hydraulic cylinder ( 1 ) and the support bearing structure ( 7 ), said hydraulic bearing structure ( 7 ) being resilient and connected to the cylinder ( 1 ) so as to permit axial movement of the hydraulic cylinder as a result of friction forces effective between the piston ( 6 ) and the hydraulic cylinder ( 1 ).  
   
   
       2 . A hydraulic shock absorber support arrangement as claimed in  claim 1 , wherein the hydraulic cylinder ( 1 ) is connected to a gas spring accumulator ( 2 ) via an overflow line ( 4 ) for a hydraulic medium.  
   
   
       3 . A hydraulic shock absorber support arrangement as claimed in  claim 2 , wherein the support bearing structure ( 7 ) is arranged hydraulically in parallel with the gas spring accumulator ( 2 ).  
   
   
       4 . A hydraulic shock absorber support arrangement as claimed in  claim 1 , wherein a hydraulic effective area (A L ) is arranged between the hydraulic cylinder ( 1 ) and the support bearing structure ( 7 ) and remains essentially constant under excursion of the hydraulic cylinder ( 1 ) and the support bearing structure ( 7 ).  
   
   
       5 . A hydraulic shock absorber support arrangement as claimed in  claim 4 , wherein the hydraulic effective area (A L ) is approximately equal to an effective working area of the hydraulic cylinder ( 1 ).  
   
   
       6 . A hydraulic shock absorber support arrangement as claimed in  claim 1 , wherein the support bearing ( 7 ) is formed by a housing ( 10 ) which is filled with the hydraulic medium.  
   
   
       7 . A hydraulic shock absorber support arrangement as claimed in  claim 6 , wherein a separate force transfer means ( 9 ) is arranged between the housing ( 10 ) and a coupling point ( 13 ) for the support of the body of a vehicle.  
   
   
       8 . A hydraulic shock absorber support arrangement as claimed in  claim 6 , wherein the housing ( 10 ) is formed by a folding bellows, at least in certain areas.  
   
   
       9 . A hydraulic shock absorber support arrangement as claimed in  claim 6 , wherein the housing ( 10 ) is formed by an elastomer cylinder, at least in certain areas.  
   
   
       10 . A hydraulic shock absorber support arrangement as claimed in  claim 1 , wherein the housing ( 10 ) is directly connected to the hydraulic cylinder ( 1 ).  
   
   
       11 . A hydraulic shock absorber support arrangement as claimed in  claim 1 , wherein the support bearing structure ( 7 ) has at least one of an extension stop ( 16 ) and a compression stop ( 15 ).  
   
   
       12 . A hydraulic shock absorber support arrangement as claimed in  claim 1 , wherein the support bearing structure ( 7 ) includes a longitudinal guide member ( 17 ).  
   
   
       13 . A hydraulic shock absorber support arrangement as claimed in  claim 1 , wherein a perforated diaphragm ( 8 ) is arranged between the hydraulic cylinder ( 1 ) and the support bearing structure ( 7 ).  
   
   
       14 . A hydraulic shock absorber support arrangement as claimed in  claim 1 , wherein of the support bearing ( 7 ) is configured with an overall rigidity such that when spring extension or spring compression occurs the force change in the support bearing structure ( 7 ) is greater than the frictional force of the piston ( 6 ) in the hydraulic cylinder ( 1 ).  
   
   
       15 . A hydraulic shock absorber support arrangement as claimed in  claim 1 , wherein the support bearing structure ( 7 ) has a mechanical spring stiffness (C L ) which is less than 50 N/mm.  
   
   
       16 . A hydraulic shock absorber support arrangement as claimed in  claim 1 , wherein the support bearing structure ( 7 ) forms a head bearing of the hydraulic cylinder ( 1 ).  
   
   
       17 . A hydraulic shock absorber support arrangement as claimed in  claim 1 , wherein the support bearing structure ( 7 ) is a head bearing of a hydropneumatic spring damper.