A shock absorber for a vehicle suspension system may include a damper tube having an axis defining an axial direction extending between a first end and a second end, a bumper cap, and a dust gaiter operably coupled to the bumper cap. The bumper cap may have a cover portion and a retention portion. The cover portion may be operably coupled to the second end of the damper tube, and the retention portion may extend along a lateral periphery of the damper tube to an opposite end of the bumper cap relative to the cover portion. The retention portion may include a continuous ring at a distal end of the bumper cap relative to the cover portion to define a limit for movement of the dust gaiter along the bumper cap in the axial direction. The continuous ring may be retained by a plurality of fixed fingers that extend from the cover portion to the continuous ring. A movable finger is disposed between each of the fixed fingers, each instance of the movable finger having a radially extending locking tab to engage the dust gaiter. Each instance of the moveable finger has a radial deflection rate of less than about 8 N/mm.

A strut assembly including a reservoir tube that extends about and along a center axis and has an interior surface and defines a chamber. A bearing sleeve is disposed in the chamber of the reservoir tube and extends about and along the center axis between a proximal end and a distal end. The bearing sleeve presents an inner surface and an outer surface. A damper body tube is disposed in the bearing sleeve and is moveable relative to the bearing sleeve. A piston assembly is disposed in the damper body tube. The outer surface of the bearing sleeve has a tubular portion and a protrusion portion that extends radially outwardly relative to the tubular portion and annularly and providing an interference fit between the outer surface of the bearing sleeve and the interior surface of the reservoir tube.

A vehicle is provided. The vehicle includes: a chassis including a chassis body and chassis modular units; at least one driving unit arranged in at least one of the chassis modular units, and configured to provide a driving force to at least a pair of wheels; and suspension systems. The chassis body is of an elongate shape in a first direction of the vehicle. A cockpit is arranged in the chassis body. The chassis modular units are connected to the chassis body in series in the first direction, and arranged at first and second ends of the chassis body in the first direction. Each chassis modular unit is connected to a corresponding pair of wheels through a corresponding suspension system.

The present invention relates to a hydraulic damper for a motor vehicle, comprising a tube with a slidably piston assembly attached to an end of a piston rod that is led outside the tube through a rod guide. A protective cap surrounds a portion of the tube. A partially axially elastic protective tube is attached to the cap and surrounds it and the piston rod. The cap is a unitary plastic component and has an annular flange provided with locking means attaching it to the protective tube. The cap has a plurality of spaced axial ribs separated by axial slots and joining a cylindrical section of the cap with the flange. A plurality of auxiliary ribs join the axial ribs and the annular area of the axial slots is larger than the total annular area of the axial ribs and the auxiliary ribs combined.

A protective sheet enveloping an air suspension module of a vehicle is disclosed. The protective sheet comprises a first edge, a second edge, a third edge, a fourth edge, and a middle portion. The first edge, the second edge, the third edge, and the fourth edge having a pleat with a plurality of incises. The third edge and the fourth edge are in a perpendicular orientation with respect to the first edge and the second edge. The middle portion having a mesh encapsulated within the pleat of the first edge, the second edge, the third edge, and the fourth edge. The protective sheet envelopes around an outer circumferential surface of the air suspension module using fastening means. The plurality of incises provide flexibility for easy installation of the protective sheet over the air suspension module. The protective sheet protects the air suspension module during operation of the vehicle.

Methods and systems for vehicle suspension are provided. A leveling manifold includes, in one example, a plurality of electrically-activated valves arranged between, on a first end, a rod-side and a piston-side of one or more hydraulic cylinders, and on a second end, a pressure source and a tank, wherein the plurality of electrically-activated valves include a first valve, a second valve, a third valve, and a fourth valve. The leveling manifold further includes a first flow path extending through the first and second valves and from the rod-side to the second end and a second flow path extending through the third and fourth valves and from the piston-side to the second end, the leveling manifold is designed to manage operation of the first, second, third, and/or fourth valves to independently adjust a position and a stiffness of the one or more hydraulic cylinders.

Provided is a trailing arm riding mower suspension system that includes trailing arms adapted to support hydraulic motor units and having leading ends pivotally coupled to a mower frame by way of leading end spherical joints and trailing ends having hydraulic drive unit mounts, where the trailing arms are adapted to pivot about leading end pivot locations defined by the leading end spherical joints.

Methods and systems for vehicle suspension are provided. A leveling manifold includes, in one example, a plurality of electrically-activated valves arranged between, on a first end, a rod-side and a piston-side of one or more hydraulic cylinders, and on a second end, a pressure source and a tank, wherein the plurality of electrically-activated valves include a first valve, a second valve, a third valve, and a fourth valve. The leveling manifold further includes a first flow path extending through the first and second valves and from the rod-side to the second end and a second flow path extending through the third and fourth valves and from the piston-side to the second end, the leveling manifold is designed to manage operation of the first, second, third, and/or fourth valves to independently adjust a position and a stiffness of the one or more hydraulic cylinders.

The invention relates to a suspension unit, in particular for commercial vehicles, including an arm and a support element. The support element includes a support region and a support-side engagement region and comprises as a single piece, and the arm has an arm-side engagement region. A first engaging structure is provided on the arm-side engagement region, the engaging structure being attachable to a second engaging structure located on the support-side engagement region, and the support region includes a securing portion that fixes an air spring bellows and a rolling surface.

A dust cover is configured to cover an outer side of a damper extending in a predetermined direction. The dust cover includes bellows portions and a flange portion. The bellows portions are inclined alternately toward a radially outer side and a radially inner side in an axial direction. The flange portion extends radially outward from a cylindrical portion of the dust cover. The flange portion protrudes radially outward from the cylindrical portion of the dust cover by a dimension larger than a height dimension in a radial direction between a radially inner end and a radially outer end of each of the bellows portions. A thickness of the flange portion is larger than a thickness of the radially outer end of each of the bellows portions.