A miniature sound-absorbing accumulator for shock absorbers

Abstract

The invention discloses a micro soundproof energy accumulator used for a damper. A floating piston is embedded in a work cylinder to isolate damping oil from inert gas, so that an oil cylinder and an air cylinder are formed and are independent of each other; a quick coupling is connected with an upper sealing end cap of a cylinder barrel and is connected with a rodless cavity of the damper, a prefill valve is fixedly installed in the work cylinder and forms a hydraulic energy accumulator with the floating piston, and oil in the rodless cavity of the damper is complemented and absorbed in time; a self-sealing inflating connector is connected with the inside of a lower sealing end cap of the cylinder barrel and can inflate a gas chamber with the inert gas. The micro soundproof energy accumulator overcomes the defect that flowing complementing of the damping oil is delayed, the situation that air bubbles occur in the work cylinder of the damper is avoided, and noise is lowered; the hydraulic energy accumulator is formed, impact is relieved, overall stability and reliability of the damper are improved and the service life of the damper is prolonged.

Description

technical field [0001] The invention relates to an accumulator used for a shock absorber, in particular to a miniature noise-absorbing accumulator used for a shock absorber, which is suitable for an automobile shock absorber system and belongs to the technical field of fluid control. Background technique [0002] At present, the shock absorbers used in automobiles are basically hydraulic shock absorbers; when the vehicle is running in bumps, the piston rod of the hydraulic shock absorber continues to expand and contract in the cylinder body, and the shock absorber oil in the cylinder body continues to pass through the valve body The valve plate in the center flows up and down to buffer the impact force brought by the vehicle's own weight, so as to reduce the bumps and improve the ride comfort of the vehicle. Since the piston rod of the hydraulic shock absorber extends into and out of the cylinder, the volume of the oil cylinder will change. When the vehicle bumps frequently ...

AI Technical Summary

Problems solved by technology

After retrieval, the Chinese patent number is 200620141855.7, which discloses a patented technology called "Tube Type Hydraulic Shock Absorber with Floating Piston". By installing a floating piston device at the bottom of the cylinder, the above problems are basically solved, but the There are still disadvantages in the technology: it is difficult to fill high-pressure gas; the floating piston has a large moving range and serious wear; there is no accumulator, the floating piston is affected by strong impact loads, and the service life is low

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