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US 6,186,178 B1Granted
Sphere or accumulator with membrane, such as for motor vehicle hydropneumatic suspension
AssigneesAutomobiles Peugeot, Automobiles Citroen
InventorJean-Luc Darroux
Life of this patent
Estimating the term…
Abstract
A pneumatic sphere includes a rigid envelope and a deformable flexible membrane disposed inside the envelope to define an upper chamber containing a gas and a lower chamber containing a liquid. In the upper chamber, a device associated with one of the envelope and the membrane punctures the membrane in response to an excessive pressure in the lower chamber, displacing the membrane to reduce the pressure in the lower chamber.
Claims20
A pneumatic sphere for a suspension of an automotive vehicle, the sphere comprising:
- rigid envelope having an interior,
- a deformable flexible membrane disposed inside the envelope, the flexible membrane dividing the interior of the envelope into an upper chamber containing a gas under pressure, and a lower chamber containing a liquid, and
- a device disposed in the upper chamber and associated with one of the envelope and the membrane, puncturing the membrane in response to excessive pressure in the lower chamber to reduce the pressure in the lower chamber.
Dependencies are inferred from the claim text.