Unlock instant, AI-driven research and patent intelligence for your innovation.

Orifice Valve

A damping valve and valve body technology, applied in springs, shock absorbers, springs/shock absorbers, etc., can solve problems such as unstable damping force characteristics of damping valves

Inactive Publication Date: 2012-04-04
KYB CORP
View PDF11 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This pressure fluctuation induces vibration of the coil spring of the damper and the valve body, and as a result, the damping force characteristic of the damper may become unstable.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Orifice Valve
  • Orifice Valve
  • Orifice Valve

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] refer to figure 1 , the one-way flow type multi-tube hydraulic shock absorber D includes an outer tube 21 coaxially provided outside the cylinder 20 . One end of the cylinder 20 and the outer tube 21 is closed with a cap 25 integral with a ring member 25a. A guide block 2 is fixed at the other end of the cylinder body 20 and the outer tube 21 . Hydraulic oil is filled in the cylinder 20 . Between the cylinder block 20 and the outer pipe 21, an oil tank R in which working oil and gas are sealed is provided.

[0023] The piston rod 23 slidably supported on the guide block 2 enters the cylinder 20 from the axial direction. The entry end of the piston rod 23 in the cylinder 20 is fixed with the piston 22 . The piston 22 is slidably connected to the inner peripheral surface of the cylinder 20, and divides the cylinder 20 into an oil chamber R1 on the piston rod side and an oil chamber R2 on the opposite side.

[0024] The end of the oil chamber R2 on the opposite side t...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

Provided is an orifice valve which forms a valve seat at an inlet port when the working fluid flows into the valve chamber. The valve body, receiving force from a helical spring, is located at the valve seat. The outlet port has an opening toward the valve chamber along the direction generally orthogonal to the flexible direction of the helical spring. A pillar ring, arranged between the outlet port and the helical spring and covering the helical spring, is employed for preventing the flowing of the working oil forming traversing helical spring and inhibiting the vibration of the valve body to obtain stable damping force.

Description

technical field [0001] The present invention relates to a damping valve applicable to hydraulic shock absorbers and the like. Background technique [0002] JP2002-349629A issued by the Japanese Patent Office in 2002 discloses a damper valve provided in a one-way flow type multi-cylinder type hydraulic shock absorber. [0003] The one-way flow multi-tube hydraulic shock absorber includes a cylinder body, a piston housed in the cylinder body, and a piston rod combined with the piston and protruding from the cylinder body, which will be used to ensure the change of the working oil volume in the cylinder body. The oil tank is arranged on the outside of the cylinder body. [0004] Inside the cylinder, the piston rod side oil chamber and the oil chamber opposite the piston rod are divided. The damper valve is arranged in the outflow passage of the working oil from the oil chamber on the side of the piston rod to the oil tank. [0005] No matter the extension or contraction of t...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): F16F9/34
Inventor 鸟海拓弥
Owner KYB CORP
PatSnap Eureka logo

PatSnap Eureka turns technology decisions into work you can execute. Powered by our Innovation Knowledge Graph, it runs expert workflows across engineering, life sciences, materials and intellectual property. Get your review-ready output in minutes.

X (Twitter)LinkedInYouTubeSubstack

© 2026 PatSnap. All rights reserved. 

Terms of Service

 | 

Privacy policy

 | 

Modern Slavery Act Transparency Statement