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In 1875, Roots exhibited a blower at the Saint Petersburg Exhibition; Thwaites and Carbutt exhibited a Roots principle "air blowing machine" for mine ventilation in the same exhibition. [ 6 ] In 1885, Edgar Dwight Johnston joined the firm of 30 people; he became vice president in 1889 and president in 1898, remaining so until at least 1931.
An Eaton M62 Roots-type supercharger is visible at the front of this Ecotec LSJ engine in a 2006 Saturn Ion Red Line.. The Roots-type blower is simple and widely used. It can be more effective than alternative superchargers at developing positive intake manifold pressure (i.e., above atmospheric pressure) at low engine speeds, making it a popular choice for passenger automobile applications.
The Roots supercharger dates back to the 1860s, and this is the basis for the original Wade supercharger, but with patented modifications incorporated. The first patent of Costin and Densham deals with ways to achieve compression within the Roots-style blower. [ 2 ]
Howden is part of the US engineering group Colfax Corporation. The purchase price was 195 million euros. [2] Along with the Palatine factory there are also branches in Springfield, Missouri, Helsingor, Denmark and Mornago, Italy. [2] Howden Turbo GmbH, headquartered in Frankenthal, was founded on October 3, 2017, through the acquisition of Howden.
A fact from Roots Blower Company appeared on Wikipedia's Main Page in the Did you know column on 13 April 2012 (check views). The text of the entry was as follows: The text of the entry was as follows:
In the 1960s Godfrey continued to make the Roots-type cabin air compressors (a development of the original Marshall), but also a screw-type compressor. Surplus stores of these cabin superchargers (Marshall cabin blowers) were repurposed after the war and used for tuning cars (mainly for racing, hill-climbing, etc.).
An early example of a lobe pump is the Roots Blower, patented in 1860 [1] to blow combustion air to melt iron in blast furnaces, but now more commonly used as an engine supercharger. Lobe pumps are used in a variety of industries including pulp and paper, chemical, food, beverage, pharmaceutical, and biotechnology. They are popular in these ...
The Rootes Group was a British automobile manufacturer and, separately, a major motor distributors and dealers business. From headquarters in the West End of London, the manufacturer was based in the Midlands and the distribution and dealers business in the south of England.