Support and carrier assemblies as well as end member assemblies and gas spring and damper assemblies including same

Patent metadata

Field	Value
Publication number	US-10724596-B2
Application number	US-201916385660-A
Country	US
Kind code	B2
Filing date	Apr 16, 2019
Priority date	Aug 4, 2014
Publication date	Jul 28, 2020
Grant date	Jul 28, 2020

Abstract

Support and carrier assemblies are dimensioned for securement along a damper housing and dimensioned to operatively support an end member of a gas spring assembly on the damper housing as well as to form a substantially fluid-tight connected between the end member and the damper housing. The support and seal assembly can include a seal assembly with a seal carrier and at least one sealing element. The seal carrier can be dimensioned for securement along the damper housing. The at least one sealing element can be dimensioned sealingly engage the seal carrier and one of the end member and the damper housing to at least partially form the substantially fluid-tight connection therebetween. End member assemblies including such support and carrier assemblies are included. Gas spring and damper assemblies as well as suspension systems are also included.

First claim

The invention claimed is:

1. A gas spring and damper assembly comprising:
a damper assembly having a longitudinally-extending axis and including a damper housing and a damper rod assembly operatively interengaged with said damper housing for reciprocal displacement relative thereto; and,
a gas spring assembly operatively connected with said damper assembly, said gas spring assembly including:
a first end member operatively connected to said damper rod assembly in substantially fixed axial relation thereto;
a second end member supported along said damper housing, said second end member including an end member wall with an end surface portion oriented transverse to said longitudinal axis; and,
a flexible spring member secured between said first and second end members in a substantially fluid-tight manner such that a spring chamber is at least partially defined by said flexible spring member between said first and second end member; and,

a support and carrier assembly supported along said damper housing, said support and carrier assembly including:
a retaining ring secured in a substantially-fixed axial position along said damper housing;
a support element including a support element wall with an inner surface portion facing radially inward toward said damper housing, an outer surface portion facing radially outward, a first end surface portion and a second end surface portion facing opposite said first end surface portion, said support element supported along said damper housing on said retaining ring such that said retaining ring substantially inhibits displacement of said support element in at least one axial direction;
a seal carrier including a seal carrier wall with an inner surface portion facing said damper housing, a first outer surface portion positioned radially outward of said inner surface portion a first distance, a second outer surface portion positioned radially outward of said inner surface portion a second distance that is greater than said first distance such that a shoulder surface portion extends radially between said first and second outer surface portions, and a first end surface portion facing opposite said shoulder surface portion;
a first sealing element disposed along said inner surface portion of said seal carrier; and,
a second sealing element disposed along one of said first and second outer surface portions of said seal carrier;

said support and carrier assembly operatively supporting said second end member on said damper housing with said shoulder surface portion of said seal carrier facing said end surface portion of said end member wall and said first end surface portion of said seal carrier facing said first end surface portion of said support element such that a radial wall portion of said seal carrier wall is captured between said second end member and said support element with said seal carrier, said first sealing element and said second sealing element together forming said substantially fluid-tight connection between said second end member and said damper housing.

2. A gas spring and damper assembly according claim 1 , wherein said end member wall of said second end member includes a side wall portion spaced radially outward of said damper housing such that a gap is formed radially therebetween, said seal carrier wall including an axial wall portion extending axially beyond said shoulder surface portion in a direction opposite said first end surface portion of said seal carrier to a second end surface portion with said axial wall portion disposed within said gap between said side wall portion of said second end member and said damper housing.

3. A gas spring and damper assembly according to claim 1 , wherein said seal carrier includes an annular groove disposed in facing relation to said damper housing with said first sealing element partially received within said annular groove.

4. A gas spring and damper assembly according to claim 1 , wherein said seal carrier includes an annular groove disposed in facing relation to said second end member with said second sealing element partially received within said annular groove.

5. A gas spring and damper assembly according to claim 1 , wherein said second end member includes an annular groove disposed in facing relation to said seal carrier with said second sealing element partially received within said annular groove.

6. A gas spring and damper assembly according to claim 1 , wherein said inner surface portion of said seal carrier is disposed in radially-spaced relation to said damper housing and said first outer surface portion of said seal carrier is disposed in radially-spaced relation to said second end member, and said first sealing element is disposed along said inner surface portion in sealing engagement with said damper housing and said second sealing element is disposed along said first outer surface portion in sealing engagement with said second end member.

7. A gas spring and damper assembly according to claim 6 , wherein said seal carrier and said at least one of said first sealing element and said second sealing element are integrally formed with one another from a common material.

8. A gas spring and damper assembly according to claim 6 , wherein said seal carrier is at least partially formed from a first material and said at least one of said first sealing element and said second sealing element are at least partially formed from a second material that is different from said first material.

9. A gas spring and damper assembly according to claim 1 , wherein at least one of said first sealing element and said second sealing element is attached to said seal carrier by way of a flowed-material joint.

10. A gas spring and damper assembly according to claim 1 , wherein said seal assembly is attached to said first surface of said support element by way of a flowed material joint.

11. A gas spring and damper assembly according to claim 1 , wherein said support element wall of said support element includes a radial wall portion extending from said inner surface portion toward said outer surface portion and an axial wall portion extending from said radial wall portion in an axial direction away from said first end surface portion beyond said second end surface portion to a third end surface portion.

12. A gas spring and damper assembly according to claim 1 , wherein said second end member includes a plurality of retaining members projecting axially therefrom, said plurality of retaining members including a first end attached to said second end member and a second end disposed in spaced relation to said second end member such that said plurality of retaining members are capable of undergoing resilient deflection to engage said support element.

13. An end member assembly dimensioned for securement along an associated damper assembly and for securement to an associated flexible spring member, said end member assembly comprising:
an end member core having a longitudinal axis, said end member core including a core wall extending peripherally about said longitudinal axis and longitudinally between opposing first and second ends, said core wall including:
an inner surface at least partially defining a longitudinal passage extending through said end member core and dimensioned to receive the associated damper assembly;
a first section disposed along said first end of said end member core, said first section dimensioned to receive an associated end of the associated flexible spring member; and,
a second section disposed along said second end of said end member core in spaced relation to said first section and including an opening formed along said second end through which the ass

Assignees

• Firestone Ind Products Co Llc

Inventors

• Debruler Brian S
• Munchel Brad W

Classifications

• B60G11/27 Primary

  wherein the fluid is a gas · CPC title

• B60G17/0485

  the springs being pneumatic springs with a flexible wall, e.g. with levelling valves · CPC title

• F16F9/0454 Primary

  characterised by the assembling method or by the mounting arrangement, e.g. mounting of the membrane (F16F9/0409, F16F9/0445 take precedence) · CPC title

• B60G2206/40

  Constructional features of dampers and/or springs · CPC title

• B60G2202/32

  The spring being in series with the damper and/or actuator · CPC title