Damper assembly

Patent metadata

Field	Value
Publication number	US-11454292-B2
Application number	US-202016993889-A
Country	US
Kind code	B2
Filing date	Aug 14, 2020
Priority date	Aug 14, 2020
Publication date	Sep 27, 2022
Grant date	Sep 27, 2022

Abstract

A damper assembly includes a damper, an accumulator, and a tube mount. The damper includes a tube having an outer surface. The tube defines a central axis and a first cavity in the outer surface. The accumulator has an end defining a second cavity. The accumulator defines a longitudinal axis. The tube mount is attached to the outer surface of the tube around the first cavity. The tube includes a damper fluid. The end of the accumulator is supported by the tube mount to allow the damper fluid to flow from the tube through the first cavity and into the accumulator through the second cavity. The longitudinal axis of the accumulator is transverse to the central axis of the tube.

First claim

The invention claimed is:

1. A damper assembly, comprising:
a damper including a tube having an outer surface, the tube defining a central axis and a first cavity in the outer surface;
an accumulator having an end defining a second cavity, the end having a convex outer surface, the accumulator defining a longitudinal axis; and
a tube mount attached to the outer surface of the tube around the first cavity;
wherein the tube includes a damper fluid;
wherein the end of the accumulator is supported by the tube mount to allow the damper fluid to flow from the tube through the first cavity and into the accumulator through the second cavity;
wherein the longitudinal axis of the accumulator is transverse to the central axis of the tube at a non-right angle;
wherein the tube mount includes a ring and the accumulator is supported by the ring at the convex outer surface of the end of the accumulator, the ring being in fluid communication with the first cavity and the second cavity allowing damper fluid to flow from the first cavity to the second cavity through the ring.

2. The damper assembly of claim 1 , wherein the accumulator is rotatable within the tube mount to a specified orientation.

3. The damper assembly of claim 2 , wherein, in the specified orientation, the longitudinal axis of the accumulator defines an angle with an axis normal to the outer surface of the tube, the angle being greater than ten degrees and less than twenty degrees.

4. The damper assembly of claim 1 , further comprising a valve supported by the outer surface of the tube.

5. The damper assembly of claim 4 , wherein the damper fluid is movable from the tube through the valve.

6. The damper assembly of claim 1 , wherein the damper includes a rod movable within the tube.

7. The damper assembly of claim 6 , wherein the rod is arranged to move the damper fluid through the tube and into the accumulator.

8. The damper assembly of claim 1 , wherein the longitudinal axis of the accumulator defines an angle with an axis normal to the outer surface of the tube, the angle being greater than zero degrees and less than ninety degrees.

9. The damper assembly of claim 8 , wherein the angle is greater than ten degrees and less than twenty degrees.

10. The damper assembly of claim 1 , wherein:
the first cavity and the ring are coaxial on an axis perpendicular to the central axis of the tube;
the second cavity of the accumulator is on the longitudinal axis of the accumulator; and
the longitudinal axis of the accumulator is transverse to the axis of the first cavity and the ring and the longitudinal axis extends through the ring.

11. The damper assembly of claim 10 , wherein the convex outer surface of the end of the accumulator is welded to the ring.

12. The damper assembly of claim 1 , wherein the convex outer surface of the end of the accumulator is welded to the ring.

13. The damper assembly of claim 1 , wherein the tube mount and the end of the accumulator form a fluid-tight seal.

14. The damper assembly of claim 1 , wherein the ring and the convex outer surface of the end of the accumulator form a substantially circular seal.

15. The damper assembly of claim 1 , wherein the accumulator includes a piston and the damper fluid is movable into the accumulator to move the piston.

16. The damper assembly of claim 1 , wherein the damper fluid is movable from the tube into the accumulator along the longitudinal axis.

17. The damper assembly of claim 1 , wherein the longitudinal axis extends in a downward direction.

18. The damper assembly of claim 1 , wherein the outer surface of the tube has a curvature and the tube mount has substantially a same curvature as the outer surface of the tube.

Assignees

• Driv Automotive Inc

Inventors

• Deferme Stefan

Classifications

• F16F9/34

  Special valve constructions ({F16F9/44, F16F9/50 take precedence; filtering details F16F9/3285} ; valves in general F16K); Shape or construction of throttling passages · CPC title

• B60G2206/8201

  by welding · CPC title

• B60G2202/24

  Fluid damper · CPC title

• B60G2206/41

  Dampers · CPC title

• F16F2228/066

  Variable stiffness · CPC title