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Hydraulic cylinder including a variable-shape o-ring

A technology of sealing rings and hydraulic cylinders, which is applied in the direction of engine sealing, fluid pressure actuators, engine components, etc., and can solve problems such as non-continuous coating tolerances and different ellipticities

Inactive Publication Date: 2012-11-14
GRUPO DE ING OCEANICA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Complicating this approach is that the coating tolerances are not continuous, in other words, at the ends of the barrel, there may be one radial tolerance and another radial tolerance in the middle, or the ovality of the ends and middle may different, therefore, there is a need to develop an O-ring that would allow use on low-cost commercial cartridges, thereby addressing the aforementioned feasibility issues

Method used

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  • Hydraulic cylinder including a variable-shape o-ring

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Embodiment Construction

[0023] For a better understanding of the invention, a novel hydraulic cylinder and lifting piston with variable size O-rings is described by the following description and accompanying drawings.

[0024] The lower part of the cylinder 1 is closed, the cylinder 1 has a rigid gasket 2 welded on the upper part of the cylinder and welded to its own interior. The lifting piston 3 inside the cylinder 1 is open at the bottom and has another welded rigid washer 4 at a distance from the lower end on the outer surface of the piston. The gasket has a series of holes around it. There is an O-ring seal 6 below the gasket 4 welded to the piston. The O-ring seal 6 has a certain degree of porosity and has the same number and position of holes as the gasket 4 of the piston. This washer is made of low-friction and highly resilient elastomeric material. Below the O-ring there is another gasket 7 which is loose. This loose washer also has holes for the introduction of bolts.

[0025] The bolts...

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Abstract

The invention relates to a novel hydraulic cylinder and piston system for lifting heavy loads, which is made from commercial tubes and in which the cylinder tube (1), which is closed at the lower end thereof, includes a hard welded washer (2) inside the upper end thereof. Another hard washer (4) is welded to the outer face of the piston at a distance from the lower end. The following elements are provided between the cylinder tube and the piston, namely: a variable-shape O-ring (6) made from a high-elasticity, low-friction, compressible, deformable elastomer material; and a loose washer. When the O-ring is compressed, the system closes, ensuring sealing.

Description

technical field [0001] This invention relates to a new hydraulic cylinder system equipped with pistons for lifting loads, with variable size O-ring seals and low cost commercial cartridges, which allows lifting or pushing any load. Background technique [0002] Hydraulic cylinders are known to lift large loads by simply introducing pressure into hydraulic oil through the base of the piston causing the piston to move upward or horizontally, enabling a push or pull operation. However, as very useful as these hydraulic cylinders are: hydraulic cylinders require steel cylinders to be calibrated with protected surfaces, and as much calibration on the inner surface as on the outer surface to avoid friction. In general industrial applications, hydraulic cylinders are often reused many times. This is a result of systems in industry that require precise calibration and alignment of tubing and even have anti-friction coatings. Extremely high levels of reuse mask high cost. However, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16J15/18
CPCF16J1/008F16J15/3232F15B15/1452F16J15/56F16J15/18
Inventor C·德尔·坎波·Y·鲁伊斯·德·阿莫多瓦
Owner GRUPO DE ING OCEANICA