Dubonnet allowance is a stand-alone front suspension system and a popular steering wheel especially in the 1930s and 1940s. Not durable unless properly maintained, it was soon replaced by another version. It consists of a rigidly mounted axle beam in which the steering pops up and the suspension arm rotates around the kingpin mounted on the end of the shaft. The wheels themselves are fitted to the stub axle, hung from the kingpin. The system features coiled wrapped springs and shock absorbers, which are sealed in the oil required to lubricate and protect the suspension parts. This is also a drawback of the layout, because any leak will have a negative effect on travel and endurance.
The system was created by French engineer and designer AndrÃÆ' Â © Dubonnet (heir of Dubner's vermouth wealth), and built into Hispano-Suiza based on 1933. He sold it to General Motors who adapted it as their "knee-jerking action", but it was also used by many others including Fiat, Alfa Romeo, Simca, and Iso Rivolta.
The General Motors connection caused one of the most suspended uses, returning to Europe for Vauxhall Twelve and Vauxhall Fourteen before the war from 1935 to 1938. The postwar Vauxhall Velox in 1949 reintroduced a similar trailing rear suspension. widely depicted as a 'Dubonnet' suspension. However this suspension uses torque rods rather than coil springs so Vauxhall himself denies that this is 'true' Dubonnet.
Video Dubonnet suspension
References
Source of the article : Wikipedia
0 Comments