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A simple MacPherson strut suspension on the left front wheel of a rear-wheel drive vehicle. The front of the vehicle is at bottom right of the image. Upper green: Vehicle body/strut interface Red: Steering knuckle or hub carrier Blue: Lower control arm or track control arm Light blue: Steering gear tie rod or track rod Lower purple: Radius rod
Earle S. MacPherson was born in Highland Park, Illinois, in 1891, and was a graduate of the University of Illinois. He served in World War I and attained the rank of captain. [1] He worked successively for the Chalmers Motor Company and for the Liberty Motor Car Company in the early 1920s, and joined Hupmobile in 1923. [2]
The MacPherson strut is a common form of strut suspension. This was not the first attempt at strut suspension, but in MacPherson's original patent, the anti-roll bar forms an integral and essential part of the suspension, in addition to its usual function in controlling body roll. A strut suspension like MacPherson's requires a hinged lower ...
MacPherson strut/Chapman strut; Upper and lower A-arm (double wishbone) Multi-link suspension; Semi-trailing arm suspension; Swinging arm Transverse leaf springs when used as a suspension link, or four-quarter elliptics on one end of a car are similar to wishbones in geometry, but are more compliant.
Later on, in 1951, Ford Company decided to use the MacPherson strut on small production cars, the English Ford Consul and Ford Zephyr.[2] Thus, the double wishbone was applied early in automobile history and there is no genetic relationship between MacPherson strut and double wishbone suspension.
Many currently manufactured automobiles worldwide use MacPherson strut suspension, which utilises one ball joint per side, between the lower end of the strut and the control arm, with the necessary small amount of articulation at the top of the strut being usually provided by an elastomeric bearing, within which is a ball bearing to allow free ...
MacPherson's strut took advantage of the unitary car bodies appearing in new factories after World War II: the strut requires a high top mounting point, which would be difficult to arrange for a ladder chassis, but is also advantageous for unitary construction as it distributes suspension loads over a greater volume of the bodyshell. New car ...
Strut is a common name in timber framing for a support or brace of scantlings lighter than a post. Frequently struts are found in roof framing from either a tie beam or a king post to a principal rafter. Struts may be vertically plumb or leaning (then called canted, raking, or angled) and may be straight or curved.