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US 12,352,297 B2Granted
Hydraulic cylinder with inflatable seals
AssigneeSaudi Arabian Oil Company
InventorNaif Mohsen Mosleh Alharbi
Life of this patent
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Abstract
Systems and devices include a hydraulic cylinder piston including a piston rod having a first end and a second end opposite the first end; a piston head coupled to the first end of the piston rod; and two inflatable seals disposed around an outer circumference of the piston head, each inflatable seal including one or more chambers configured to receive hydraulic fluid to inflate the seal.
Claims18
A hydraulic cylinder piston comprising:
- a piston rod having a first end and a second end opposite the first end;
- a piston head coupled to the first end of the piston rod;
- and
- two inflatable seals disposed around an outer circumference of the piston head, each inflatable seal comprising one or more chambers configured to receive hydraulic fluid to inflate the seal;
- wherein each inflatable seal comprises an interior cavity fluidly coupled to the one or more chambers.
2 more elements
A hydraulic cylinder piston comprising:
- a piston rod having a first end and a second end opposite the first end;
- a piston head coupled to the first end of the piston rod;
- and
- two inflatable seals disposed around an outer circumference of the piston head, each inflatable seal comprising one or more chambers configured to receive hydraulic fluid to inflate the seal;
- wherein the second end of the piston rod is coupled to a cross arm of a steam admission valve.
2 more elements
A hydraulic cylinder piston comprising:
- a piston rod having a first end and a second end opposite the first end;
- a piston head coupled to the first end of the piston rod;
- and
- two inflatable seals disposed around an outer circumference of the piston head, each inflatable seal comprising one or more chambers configured to receive hydraulic fluid to inflate the seal;
- wherein each inflatable seal comprises two diametrically opposed chambers configured to receive hydraulic fluid to inflate the seals.
2 more elements
A hydraulic cylinder assembly comprising:
- a cylinder body comprising:
- a cylindrical bore extending longitudinally from a first end of the cylinder body to a second end of the cylinder body opposite the first end;
- a first port disposed on a side of the cylinder body adjacent the first end;
- a second port disposed on the side of the cylinder body adjacent the second end;
- and
- an aperture defined in the second end of the cylinder body;
- a piston rod extending through the aperture;
- a piston head coupled to a first end of the piston rod, the piston head disposed in the cylindrical bore of the cylinder body between the first and second ports;
- a first and a second inflatable seal disposed around an outer circumference of the piston head, the inflatable seals in sliding contact with the cylindrical bore;
- and
- a third seal disposed around an interior circumference of the aperture, the third seal in sliding contact with the piston rod.
8 more elements
Dependencies are inferred from the claim text.