Compact temperature compensating gas spring
AssigneeDaimlerChrysler AG
InventorJohn Kargilis
Life of this patent
Estimating the term…
Abstract
A compact temperature compensating gas spring including a gas filled hollow cylinder and a piston assembly slidably received in the gas filled hollow cylinder. The piston assembly includes a piston head and a piston rod. The piston rod includes a temperature compensation chamber. The piston head includes an aperture formed therein in communication with the temperature compensation chamber. A temperature activated valve is operably connected to the aperture to control gas flow between the cylinder and the temperature compensation chamber.
Claims10
-6. (canceled)
A compact temperature compensating gas spring comprising:
- a gas filled hollow cylinder;
- a piston assembly slidably received in the gas filled hollow cylinder, the piston assembly including a piston head and a piston rod, the piston rod including a temperature compensation chamber, the piston head including an aperture formed therein in communication with the temperature compensation chamber;
- a temperature activated valve operably connected to the aperture to control gas flow between the cylinder and the temperature compensation chamber;
- at least one fixed wall disposed within the piston rod wherein the fixed wall defines a plurality of temperature compensation sections within the temperature compensation chamber, the fixed wall having a fixed wall aperture formed therein;
- and
- a temperature activated fixed wall valve operably connected to the fixed wall aperture to control the gas flow from a first temperature compensation section to an adjacent temperature compensation section.
-15. (canceled)
A compact temperature compensating gas spring assembly comprising:
- a gas filled hollow cylinder having a sealed end;
- a piston assembly slidably received in the gas filled hollow cylinder, the piston assembly having a closed end and including a piston head and a piston rod, the piston rod including a temperature compensation chamber, the piston head including an aperture formed therein in communication with the temperature compensation chamber;
- a temperature activated valve operably connected to the aperture to control gas flow between the cylinder and the temperature compensation chamber;
- a fixed component operably connected to one of the sealed end and the closed end;
- a load component operably connected to the other of the sealed end and the closed end;
- at least one fixed wall disposed within the piston rod wherein the fixed wall defines a plurality of temperature compensation sections within the temperature compensation chamber, the fixed wall having a fixed wall aperture formed therein;
- and
- a temperature activated fixed wall valve operably connected to the fixed wall aperture to control the gas flow from a first temperature compensation section to an adjacent temperature compensation section.
(canceled)
A compact temperature compensating gas spring comprising:
- a gas filled hollow cylinder;
- a piston assembly slidably received in the gas filled hollow cylinder, the piston assembly including a temperature compensation chamber;
- means for controlling gas flow between the cylinder and the temperature compensation chamber based on temperature;
- means for dividing the temperature compensation chamber into temperature compensation sections;
- and
- means for controlling gas flow between the temperature compensation sections based on temperature.
Dependencies are inferred from the claim text.