Improvements to shock absorbers
A damper and valve disc technology, applied in the direction of shock absorbers, shock absorbers, springs/shock absorbers, etc., can solve the problems of changing the damping force, damaging the narrow valve seat and allowing unintended flow, etc., to achieve a smaller and smaller design The effect of changes in the damping characteristics
Inactive Publication Date: 2012-08-01
格雷姆·克肖·罗伯特森
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Problems solved by technology
However, when the shim is seated on the narrow seat, small chips or dents can easily damage the narrow seat allowing unintended flow which alters the damping force which provides variation to the expected damping characteristics of the shock absorber
Method used
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[0040] exist figure 1 , a part of the shock absorber cylinder 10 is shown. A piston 11 separates the cylinder into a compression chamber 12 and a rebound chamber 13, and a piston seal 14 is provided to prevent substantial fluid flow around the exterior of the piston. Piston 11 is able to slide axially inside cylinder 10, piston bearing 15 (especially when there are side loads or bending moments applied to the shock absorber) provides low friction for such axial movement and controls the relationship between piston and cylinder. radial gap between them.
[0041] The rod 16 passes through the rebound chamber and includes a plug 17 which fits inside the piston 11 . A screw 18 clamps the piston to the end of the rod.
[0042] On the top face of the piston, a ring of compression ports 21 facing the compression chamber (ie, compression chamber piston face 20 ) passes through the piston. The compression port is located on the outside of the rebound valve 22 . The compression por...
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A motion damping device, such as a shock absorber, has a damper valve having a valve body (11) including a first face (20, 23) on a first side of the valve body and a second face (23, 20) on the opposing second side of the valve body. The damper valve also has at least first valving (25, 26, 27, 33, 34, 35) to provide a restriction to fluid flow across the damper valve in a first direction from the second side of the of the damper valve to the first side. The first valving has a first valving disc seat (24, 32) on the second face of the valve body. The first valving disc seat has an outer edge. At least one first valving port (21, 31) extends through the valve body from the first side to the second side and exits the valve body inside the outer edge of the first valving seat. The at least one first valving disc is seated on the first valving disc seat. A first valving disc clamping face (27, 33) is located substantially inside the at least one first valving port, the height of the first valving disc clamping face being offset from the maximum height of the first valving disc seat in a direction towards the valve body such that clamping of the at least one first valving disc to the first valving disc clamping face deflects the at least one first valving disc to a static preloaded position. The first valving disc seat is concave, conical, dished, or the like, such that in cross-section the angle of the first valving seat is greater than or equal to the angle of the at least one first valving disc in the static preloaded position.
Description
technical field [0001] The present invention is in the field of motion damping and, more specifically, the invention is in the field of valves for motion damping devices. Background technique [0002] Damping of the motion of the car's body and wobble of the wheels is usually performed using telescoping "shock absorbers" filled with fluid. The extension (often called rebound) damping force in such applications is typically three times the damping force in compression motion. Shock absorbers of two different constructions are commonly used, a single-tube construction with a gas reservoir separated by a piston from the fluid in the compression chamber of the shock absorber, or a double-tube construction in which The gas reservoir in the double tube structure is located in the sleeve which surrounds the piston cylinder and communicates with the compression chamber through the damper valve. In both cases, the shock absorber's piston generally provides fluid confinement and thu...
Claims
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IPC IPC(8): F16F9/34F16F9/348F16F9/44
CPCF16F9/348
Inventor 格雷姆·克肖·罗伯特森
Owner 格雷姆·克肖·罗伯特森