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The Roots Blower Company was an American engineering company based in Connersville, ... and became a part of Colfax's UK based engineering company Howden. [10]
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 ]
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 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 term "blower" is applied to rotary screw, roots-type, and centrifugal compressors when utilized as part of an automotive forced induction system. The term 'cabin blower' is also used for the pressurisation of aircraft for high altitude flight, which used Roots type compressors particularly in the 1950s (see Marshall supercharger).
Howden was born in Prestonpans, East Lothian, in 1832, [1] the son of James Howden and his wife, Catherine Cowden, [2] [3] and was educated at the local parish school. [4] His first marriage was to Helen Burgess Adams, with whom he had one daughter, Catherine Spence Howden (1873–1925), [5] and his second to Allison Moffat Hay, with whom he had two sons, James Howden (1883–1908) and William ...
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 ...
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.
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