F - Mech Eng,Light,Heat,Weapons – 16 – F
Patent
F - Mech Eng,Light,Heat,Weapons
16
F
F16F 9/06 (2006.01) B60G 15/12 (2006.01) F16F 9/32 (2006.01)
Patent
CA 2352891
The housing (4) of a shock absorber is constructed to include an inner chamber (10) surrounded by an outer chamber (30). The inner chamber is divided by the piston (12) to which the piston rod (11) is connected into two portions. One of these portions has a number of orifices that fluidly connect that portion to the outer chamber. A piston (32) slidably and movably fitted along the length of the outer chamber divides the outer chamber into two compartments, one of which is in fluid communication with the portion of the inner chamber to which it is connected by means of the orifices. An incompressible fluid is provided in the fluidly interconnected compartment and portion. A biasing force acts against the piston in the outer chamber by means of a pressurized gas provided in the other compartment of the outer chamber. With the shock absorber thus constructed, when the piston rod moves, the piston (12) to which it is connected would force an exchange of fluid between the inner chamber and the outer chamber, which acts as a reservoir. Both the size of the orifices and the pressure of the gas that acts against the piston in the outer chamber (30) contribute to defining the stiffness of the shock absorber.
Selon cette invention, le boîtier (4) d'un amortisseur comprend une chambre interne (10) entourée par une chambre externe (30). La chambre interne est divisée par le piston (12) auquel est reliée dans deux parties la tige de piston (11). Une de ces parties comporte un certain nombre d'orifices qui relient cette partie par fluides à la chambre externe. Un piston (32) disposé coulissant et mobile le long de la chambre externe divise la chambre externe en deux compartiments dont un se trouve en communication fluidique avec la partie de la chambre interne à laquelle il est relié par les orifices. Un fluide incompressible remplit le compartiment et la partie qui communiquent par fluide. Une force de sollicitation agit sur le piston dans la chambre externe sous l'effet d'un gaz comprimé remplissant l'autre compartiment de la chambre externe. Grâce à cette construction de l'amortisseur, lorsque la tige de piston se déplace, le piston (12) auquel elle est reliée provoque un échange de fluides entre la chambre interne et la chambre externe, qui sert de réservoir. La taille des orifices et la pression du gaz qui agit sur le piston dans la chambre externe (30) contribuent à définir la rigidité de l'amortisseur.
G. Ronald Bell & Associates
Lillbacka Jetair Oy
Lillbacka Powerco Oy
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