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US 7,104,052 B1Granted
Hydraulic cylinder with integrated accumulator
AssigneeDeere & Company
InventorJahmy Jomont Hindman
Life of this patent
Estimating the term…
Abstract
A hydraulic cylinder assembly includes a hydraulic cylinder and an integral concentric accumulator. The hydraulic cylinder has a first piston surface for extending the cylinder, a second piston surface for retracting the cylinder and a third piston surface in dedicated communication with the accumulator.
Claims11
A hydraulic cylinder assembly, comprising:
- an accumulator;
- a floating accumulator piston disposed in the accumulator;
- and
- a hydraulic cylinder having a first piston surface for extending the hydraulic cylinder, a second piston surface for retracting the hydraulic cylinder and a third piston surface in dedicated communication with the accumulator, the accumulator being integral to the hydraulic cylinder, the accumulator being concentric with the hydraulic cylinder.
1 more element
A hydraulic cylinder assembly, comprising:
- an accumulator having a piston, a first accumulator port, and a second accumulator port;
- and
- a hydraulic cylinder having a first cylinder port, a second cylinder port, and a third cylinder port, the hydraulic cylinder including a first piston surface having a first effective area, a second piston surface having a second effective area and a third piston surface having a third effective area, the first piston surface in communication with the first cylinder port, the second piston surface in communication with the second cylinder port, the third piston surface in communication with the third cylinder port, the third piston surface also in communication with the second accumulator port, the accumulator being integral to the hydraulic cylinder, the accumulator being concentric with the hydraulic cylinder.
Dependencies are inferred from the claim text.