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Variable bleed orifice valving

Imported: 24 Feb '17 | Published: 06 Jan '04

Daniel Keil, Timothy Bombrys, Karl Kazmirski

USPTO - Utility Patents

Abstract

A shock absorber includes a valve assembly with a low speed oil flow circuit and a mid/high speed oil flow circuit. Both circuits control fluid flow through the valve assembly in the same direction. The low speed oil flow circuit is tunable in order to provide low speed damping to improve both the vehicle control and handling. The tuning of the low speed oil flow circuit is accomplished by supporting a low speed valve disc at a position radially inward of its outer edge to control the rate at which the low speed oil flow circuit opens. The valve assembly of the present invention can be located within either a base valve assembly or a piston valve assembly.

Description

Other advantages and objects of the present invention will become apparent to those skilled in the art from the subsequent detailed description, appended claims and drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

In the drawings which illustrate the best mode presently contemplated for carrying out the present invention:

FIG. 1 is an illustration of an automobile using the variable bleed orifice in accordance with the present invention;

FIG. 2 is a side view, partially in cross-section of a shock absorber incorporating the variable bleed orifice in accordance with the present invention;

FIG. 3 is an enlarged side elevational view, partially in cross-section, of the base valve assembly for the shock absorber shown in FIG. 2;

FIG. 4 is an exposed perspective view of the base valve assembly shown in FIG. 3;

FIG. 5 is an enlarged side elevational view, partially in cross-section of a piston assembly incorporating the variable bleed orifice in accordance with the present invention;

FIG. 6 is a perspective view of a base valve assembly having a valve disc for use in a variable bleed orifice in accordance with another embodiment of the present invention; and

FIG. 7 is a perspective view of a base valve assembly having a valve disc for use in a variable bleed orifice in accordance with another embodiment of the present invention.

Claims

1. A damper comprising:

2. The damper according to claim 1, wherein said outer edge of said second planar compression valve disc is a circular outer edge.

3. The damper according to claim 1, wherein said outer edge of said second planar compression valve disc is a contoured shaped outer edge.