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US 2026/0309121 A1Published application
Hydraulic motor
AssigneeWorldpower AS
InventorsBendik Bø, Gagi Peskovic
Life of this patent
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Abstract
A hydraulic motor for energy conversion and method for operating a hydraulic motor5 for energy conversion are provided. The present invention attains the above-described objective by a pressure annulling unit that can selectively annul the ambient pressure outside the pressure annulling unit.
Claims5
A pressure annulling unit (200) comprising a hollow annulling body (202) having a cavity,
- wherein the annulling body (202) is provided with a plurality of cylinders (212, 222A, 222B, 232) to receive a piston (214, 224A, 224B, 234) each, wherein:
- a first horizontal piston (224A) moveably provided inside a corresponding first horizontal cylinder (222A), wherein the first horizontal piston is operatively connected to an upper vertical piston (234) moveably provided inside a corresponding upper vertical cylinder (232),
- a second horizontal piston (224B) is moveably provided inside a corresponding second horizontal cylinder (222B), wherein the second horizontal piston is operatively connected to the upper vertical piston (234),
- wherein the first and second horizontal cylinders (222A, 224B) are in fluid communication with each other inside the hollow annulling body (202), and
- the first and second horizontal pistons (224A, 224B) are located opposite to each other so that the hydrostatic pressure from either horizontal piston cancel,
- further comprising a lower vertical piston (214) moveably provided inside a corresponding lower vertical cylinder (212),
- wherein the four pistons, when the pressure annulling unit is immersed in a fluid, have the pistons respective outer surfaces being connected to the surrounding fluid.
4 more elements
Dependencies are inferred from the claim text.