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Open piston for pressure accumulator

A technology of accumulator and piston, applied in the field of open piston structure, can solve the problems such as the inability to guarantee the bearing of the sealing ring, the inability to assemble the spring energy storage sealing ring, the large back pressure and the friction force, etc.

Active Publication Date: 2021-07-06
SICHUAN LINGFENG AVIATION HYDRAULIC MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to address the deficiencies in the prior art, especially the problem that the conventional open sealing groove cannot ensure that the sealing ring bears large back pressure and frictional force
Provide an open piston structure with a simple structure that can withstand reverse pressure to effectively solve the problem that conventional closed pistons cannot be equipped with advanced spring energy sealing rings

Method used

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  • Open piston for pressure accumulator
  • Open piston for pressure accumulator
  • Open piston for pressure accumulator

Examples

Experimental program
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Effect test

Embodiment Construction

[0015] refer to Figure 1-Figure 3 . In the preferred embodiment described below, an open piston structure for a pressure accumulator includes: a piston 1 with an open sealing groove assembled in the outer cylinder of the pressure accumulator, assembled on the open sealing groove of the piston 1 The sealing ring 5 and the support sleeve 3 distributed along the generatrix direction around the piston 1, wherein: the support sleeve installation groove of the piston 1 is equipped with a support sleeve 3 which is cut into two semi-circular rings along the axial 45°, The cylindrical pin 2 locks the two semi-circular rings in the installation groove on the piston 1, restricts the radial and axial movement of the support sleeve 3, and the radial groove of the outer ring of the support sleeve 3 is equipped with a support for the piston structure. Support ring 4, two oppositely symmetrical support sleeves 3 axial limit sealing ring 5, keep the seal 5 rings in the sealing groove of pist...

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Abstract

The invention discloses an open piston for a pressure accumulator, aiming to provide an open piston structure with a simple structure and capable of withstanding reverse pressure. There is a support sleeve with a whole ring cut into two semi-circular rings at 45° in the axial direction. The cylindrical pin locks the two semi-circular rings in the installation groove on the piston, limiting the radial and axial movement of the support sleeve, and the support sleeve The radial groove of the outer ring is equipped with a support ring that supports the piston structure, and two oppositely symmetrical support sleeve axial limit seal rings keep the seal ring in the seal groove of the piston, and are secured by stop bolts and locks. The tight washer 6 limits the circumferential rotation of the support sleeve to prevent the cylindrical pin from falling off. The invention solves the problem that the conventional open sealing groove cannot ensure that the sealing ring bears relatively large back pressure and frictional force.

Description

technical field [0001] The present invention relates to an open piston structure applied to a cylinder type piston pressure accumulator or a gas-liquid converter piston, more specifically, the present invention relates to an open piston structure suitable for a spring energy storage sealing ring. Background technique [0002] A hydraulic accumulator is a device that stores the potential energy of an incompressible liquid and relies on some external power source to maintain pressure, referred to as a pressure accumulator, which is widely used in mechanical oil supply systems and hydraulic control systems to absorb pressure Pulsation and shock pressure or hydraulic accessories as power source. There are many types of pressure accumulators used in hydraulic control systems as energy storage and release devices. According to their energy storage methods, they can be divided into three types: gravity type, spring type and pneumatic type. According to different structural forms, t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F15B1/24
CPCF15B1/24F15B2201/312
Inventor 匡克焕吴泽铭曾华勇
Owner SICHUAN LINGFENG AVIATION HYDRAULIC MACHINERY