A sleeve used as an air spring for a vehicle according to an example embodiment of the present disclosure, includes: at least an upper sleeve and a lower sleeve, in which an upper circumferential portion of the upper sleeve is coupled to a top mount, a lower circumferential portion of the upper sleeve is coupled to an upper circumferential portion of the lower sleeve, a lower circumferential portion of the lower sleeve is coupled to a piston portion, and one of the upper sleeve and the lower sleeve is configured to encompass an area where a lobe is formed.

A sleeve for an air spring for a vehicle includes at least a first sleeve and a second sleeve. The first sleeve has both open ends and includes a first circumferential portion and a second circumferential portion, the second sleeve has one open end and includes a third circumferential portion coupled to the second circumferential portion of the first sleeve, and an end opposite the one open end of the second sleeve is formed in a closed structure.

End member assemblies are dimensioned for securement to an end of a flexible spring member for forming gas spring assemblies. An end member assembly can include an end member body and at least one connector fitting. The end member body includes a base section and a cap section that are secured together at a single flowed-material joint. The base section and the cap section together at least partially define a reservoir chamber within the end member body. The at least one connector fitting is at least partially embedded within the end member body. Gas spring assemblies including at least one end member assembly and suspension systems including at least one gas spring assembly are also included.

An air spring includes: a first housing having a first annular supporting unit opening upward; a second housing disposed at a predetermined distance above the first housing and having a second annular supporting unit opening downward; and a diaphragm configured of an elastic tubular member forming an air chamber by upper and lower opening end portions of the elastic tubular member being air-tightly bonded to the first and second annular supporting units respectively, wherein at least one of the first and second housings has a main body unit made of a synthetic resin, at least one of the first and second annular supporting units is a metallic annular member integrated with the main body unit made of the synthetic resin, and one of the opening end portions of the diaphragm is air-tightly bonded to an outer peripheral surface of the annular member.

Flexible spring members can be dimensioned for securement to an associated gas spring end member. The flexible spring member can be at least partially formed from elastomeric material. The flexible spring member can also include a marking disposed along a surface thereof that includes one or more indicia. The marking can be at least partially formed by an indicia layer and an outer layer. The indicia layer can include one or more quantities of material that at least partially form the one or more indicia. The outer layer can be formed from a quantity of material that is disposed overtop of the indicia layer such that the one or more indicia of the indicia layer are substantially encapsulated. Gas spring assemblies, suspension systems, methods of manufacture and manufacturing systems are also included.

The present invention is directed to an air spring sleeve comprising: an outer layer, at least one reinforcing layer, and an inner layer that form the sleeve; the outer layer and the inner layer are formed of an elastomeric composition, with the proviso that the elastomeric composition does not comprise epichlorohydrin; and the at least one reinforcing layer comprises a plurality of reinforcing elements disposed between a layer of the elastomeric composition, wherein the elastomeric composition of the at least one reinforcing layer is identical to the elastomeric composition of the outer layer and the inner layer.

An air spring device for a vehicle includes a cover element, base element, spring-elastic sleeve, and distance sensor unit. The sleeve, together with the cover and base elements, defines an internal space, and includes a first section forming a first spring element having a first length and first spring constant and a second section forming a second spring element having a second length and second spring constant. The distance sensor unit is positioned in the internal space, is configured to determine a distance between the cover element and base element, and includes a measured value encoder and measured value pickup. A first of the encoder and pickup is positioned on the cover or base element. A second of the encoder and pickup is coupled to the cover element via the first spring element and to the base element via the second spring element.

An air spring comprises a hollow elastic sleeve, an end component for securing the air spring to a first frame, a hollow piston for securing the air spring to a second frame that is movable relative to the first frame, and a cylinder surrounding the hollow elastic sleeve to constrain the diameter of the hollow sleeve. A meniscus loop is formed adjacent the piston to define a major diameter of the air spring and thereby reduce the natural frequency of the air spring.

The present invention is directed to an air spring sleeve comprising: an outer layer, at least one reinforcing layer, and an inner layer that form the sleeve; the outer layer and the inner layer are formed of an elastomeric composition, with the proviso that the elastomeric composition does not comprise epichlorohydrin; and the at least one reinforcing layer comprises a plurality of reinforcing elements disposed between a layer of the elastomeric composition, wherein the elastomeric composition of the at least one reinforcing layer is identical to the elastomeric composition of the outer layer and the inner layer.

An air-sleeve for use in an air spring having a first, second, and a third sections with the second section being between the first and third sections. The first section has axial cords, the third section has cords in a cross-ply arrangement, and the second section has a combination of axial and cross cross-ply cords. The air-sleeve combines the benefits to withstand large strokes including cardanic angles while keeping its dimensional stability (low diameter expansion with pressure) and have the ability to twist, which avoids the need for an additional bearing element. The first section allows for twist and provides low stiffness to twist, the second section is supported by a restraining cylinder to secure the cord tension under inner air pressure and the third section rolls against the piston to allow the axial stroke.