Abstract: A suspension system configured to exhibit low variance in vehicle ride frequency over a large range of vehicle loads. The suspension system includes a strut having a cylinder and a piston configured to reciprocate in the cylinder. The suspension system also includes a vessel coupled to the strut, and a valve in an interior chamber of the vessel. The valve divides the interior chamber into a first liquid volume and a second liquid volume. The suspension system also includes a hydraulic accumulator having a volume and a liquid volume. The suspension system further includes a compressible liquid in the cylinder, the first liquid volume in the vessel, and the second liquid volume in the vessel, and a spring element in the volume of the hydraulic accumulator.

Abstract: A suspension system configured to exhibit low variance in vehicle ride frequency over a large range of vehicle loads. The suspension system includes a strut having a cylinder and a piston configured to reciprocate in the cylinder. The suspension system also includes a vessel coupled to the strut, and a valve in an interior chamber of the vessel. The valve divides the interior chamber into a first liquid volume and a second liquid volume. The suspension system also includes a hydraulic accumulator having a volume and a liquid volume. The suspension system further includes a compressible liquid in the cylinder, the first liquid volume in the vessel, and the second liquid volume in the vessel, and a spring element in the volume of the hydraulic accumulator.

Abstract: A pivotal connection includes a pin through a bore in a carrier having an annular flange and annular groove at opposite ends, and opposing annular bearings having relative rotatable components fitted around the pin within the bore and abutting opposite sides of an annular member in the bore such that the pin is rotatable relative to the carrier. One bearing abuts a side of the flange and the other bearing is spaced from the groove so as to define an annular gap extending from the groove to the other bearing. The pivotal connection also includes a retainer member disposed in the groove and projecting therefrom and spaced by the gap from the other bearing and a series of shims and spacer positioned around the pin between the retainer member and other bearing so as to fill the gap to impose a predetermined preload on the bearings causing them to clamp therebetween the annular member in the carrier bore.

Abstract: A pivotal connection includes a pin through a bore in a carrier having an annular flange and annular groove at opposite ends, and opposing annular bearings having relative rotatable components fitted around the pin within the bore and abutting opposite sides of an annular member in the bore such that the pin is rotatable relative to the carrier. One bearing abuts a side of the flange and the other bearing is spaced from the groove so as to define an annular gap extending from the groove to the other bearing. The pivotal connection also includes a retainer member disposed in the groove and projecting therefrom and spaced by the gap from the other bearing and a series of shims and spacer positioned around the pin between the retainer member and other bearing so as to fill the gap to impose a predetermined preload on the bearings causing them to clamp therebetween the annular member in the carrier bore.