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Piston accumulator

A piston type, accumulator technology, applied in the direction of actuator accumulator, cylinder, fluid pressure actuation device, etc., can solve the problems of cost and weight increase, achieve weight and cost optimization, good sealing and guidance, good The effect of using performance

Inactive Publication Date: 2015-07-15
CARL FREUDENBERG KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Both technical routes lead to higher cost and weight

Method used

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  • Piston accumulator
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Examples

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Embodiment Construction

[0032] figure 1 A piston accumulator is shown in section, comprising a housing 1 delimiting a pressure chamber 2 and housing a movable piston 3, wherein a compressible fluid is contained in the pressure chamber 2, wherein the piston 3 has a housing side 4 facing the pressure chamber 2 and the piston 3 has a working side 5 which can be turned towards the working fluid which can move the piston 3 . A bush 6 is provided, inside which the piston 3 is movable. The bush 6 guides the piston 3 .

[0033] Compressible fluids are gases. The housing 1 has a connection opening 11 , through which working fluid can enter the housing 1 and move the piston 3 . The pressure chamber 2 is delimited by the bushing 6, the piston 3 and the housing 1 and encloses a variable volume.

[0034] The bushing 6 is completely accommodated inside the housing 1 . The bushing 6 is configured as a cylindrical tube.

[0035] The bushing 6 has an outer surface 7 and an inner surface 8 , wherein both surfac...

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Abstract

A piston accumulator in which good sealing and guidance of a piston is ensured, even if the diameter of the housing undergoes expansion, the strength, weight and costs of the piston accumulator being optimised as far as possible, a piston accumulator, which has a housing defining a pressure chamber and receiving a movable piston, a compressible fluid being held in the pressure chamber, the piston having a housing side facing the pressure chamber and the piston having a working side which can face a working fluid that can move the piston with a bushing provided, within which the piston can move.

Description

technical field [0001] The invention relates to a piston accumulator according to the preamble of claim 1 . Background technique [0002] Piston accumulators of this type are known from the prior art. Pistons move in the pressure chambers of such piston accumulators, which are guided through the housing. The piston moves against the gas pressure. [0003] In the pressure chamber of such a piston accumulator, gas is generally contained at a very high internal pressure. The housing of such a piston accumulator must therefore have a relatively high rigidity in order to avoid an enlargement of its diameter due to the high internal pressure. [0004] As soon as the diameter increases, the piston seal can no longer perform its function optimally. Furthermore, the guidance of the piston inside the housing is no longer guaranteed. [0005] The stiffness of the housing is primarily determined by the wall thickness and the modulus of elasticity of the material from which the hous...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B1/24F16J10/04
CPCF15B2201/4053F15B1/24F15B2201/40F15B2201/31F16J10/04F15B2201/32
Inventor T·皮佩斯
Owner CARL FREUDENBERG KG