Gas spring system

Patent metadata

Field	Value
Publication number	US-9695901-B2
Application number	US-201514958431-A
Country	US
Kind code	B2
Filing date	Dec 3, 2015
Priority date	Jul 12, 2013
Publication date	Jul 4, 2017
Grant date	Jul 4, 2017

Abstract

A gas spring system includes: a gas spring assembly including at least one gas damping passage; a reservoir member connected to the gas spring assembly, the gas spring assembly being in fluid communication with the reservoir member by way of the at least one gas damping passage; and a guide member coupled with the gas spring assembly, the guide member at least partially enclosing the reservoir member and being configured for sliding axially relative to the reservoir member.

First claim

What is claimed is:

1. A gas spring system, comprising:
a gas spring assembly including a flexible wall forming a bellows defining an internal chamber and at least one gas damping passage;
a substantially rigid reservoir member connected to said gas spring assembly, said internal chamber being in fluid communication with said reservoir member by way of said at least one gas damping passage; and
a guide member coupled with said gas spring assembly, said guide member at least partially enclosing said reservoir member and being configured for sliding axially relative to said reservoir member.

2. The gas spring system according to claim 1 , wherein said internal chamber defines a gas spring volume, said reservoir member defines a reservoir volume and a ratio is defined between said reservoir volume and said gas spring volume.

3. The gas spring system according to claim 2 , wherein said ratio is configured to provide a damping effect.

4. The gas spring system according to claim 2 , wherein said at least one gas damping passage has a passage size, said passage size being configured to provide a damping effect in conjunction with said ratio.

5. The gas spring system according to claim 1 , wherein said reservoir member includes an inner wall enclosing an inner chamber, said inner chamber being in fluid communication with said internal chamber by way of said at least one gas damping passage.

6. The gas spring system according to claim 5 , wherein said inner wall includes at least one vent hole formed through.

7. The gas spring system according to claim 1 , further including a guide bearing separating said reservoir member and said guide member.

8. The gas spring system according to claim 1 , further including an extension limiter connected to said guide member and said reservoir member.

9. The gas spring system according to claim 1 , further including a bumper provided between said guide member and said reservoir member.

10. A method of using a gas spring system, said method comprising the steps of:
providing a gas spring assembly, a substantially rigid reservoir member, and a guide member, said gas spring assembly including a flexible wall forming a bellows defining an internal chamber and at least one gas damping passage, said reservoir member being connected to said gas spring assembly, said guide member being coupled with said gas spring assembly and at least partially enclosing said reservoir member;
fluidly communicating said internal chamber with said reservoir member by way of said at least one gas damping passage; and
sliding axially said guide member relative to said reservoir member.

11. The method according to claim 10 , wherein said at least one gas damping passage defines a passage size, said internal chamber defines a gas spring volume, said reservoir member defines a reservoir volume and a ratio is defined between said reservoir volume and said gas spring volume.

12. The method according to claim 11 , further including the step of adjusting at least one of said passage size and said ratio.

13. The method according to claim 12 , further including the step of identifying a resonation frequency of a body supported by said gas spring assembly.

14. The method according to claim 13 , wherein said adjusting step is performed responsively to said identified resonation frequency.

15. The method according to claim 14 , wherein said adjusting step provides a damping effect.

16. The method according to claim 10 , wherein said gas spring assembly supports a body.

17. A support system, comprising:
a body;
a gas spring system supporting said body, said gas spring system including:
a gas spring assembly including a flexible wall forming a bellows defining an internal chamber and at least one gas damping passage;
a substantially rigid reservoir member connected to said gas spring assembly, said internal chamber being in fluid communication with said reservoir member by way of said at least one gas damping passage; and
a guide member coupled with said gas spring assembly, said guide member at least partially enclosing said reservoir member and being configured for sliding axially relative to said reservoir member.

18. The support system according to claim 17 , wherein said body is at least one of a vehicle frame, a vehicle chassis, a vehicle cab, and a vehicle seat.

19. The support system according to claim 18 , wherein said body is configured to be a part of a semi-truck.

20. The gas spring system according to claim 1 , wherein said reservoir member includes a base and a wall standing up from said base, said guide member being configured to axially slide along said wall.

Assignees

• Firestone Ind Products Co Llc

Inventors

• Leonard Joshua R

Classifications

• B60G2202/314

  The spring being a pneumatic spring · CPC title

• F16F9/38 Primary

  Covers for protection or appearance · CPC title

• F16F9/05

  the flexible wall being of the rolling diaphragm type · CPC title

• B60N2/525

  using gas · CPC title

• B62D33/0608

  pneumatic or hydraulic suspension · CPC title