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The first patent of Costin and Densham deals with ways to achieve compression within the Roots-style blower. [2] Although initially focussed on engine superchargers, they were soon to diversify into other application areas, including aircraft cabin pressurisation, refrigeration, reversible air motors and pneumatic conveying of powders and other ...
In 1900, Gottlieb Daimler patented a Roots supercharger for a car's internal combustion engine. [7] In 1931, Roots Blower Company and Connersville Blower Company were bought by the International Derrick and Equipment Company to found Roots-Connersville Blower Company. The same year, the company began production of centrifugal compressors. [8]
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.
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.).
Buffalo Forge was acquired by the Howden Group. 1997: Buffalo Machine Tools of Lockport, New York was created from the machine tool division of Buffalo Forge. 1999: The Howden subsidiary containing the remainder of Buffalo Forge was renamed Howden Buffalo. 2006
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.
In 1917 he formed Rootes Limited to buy the Maidstone branch of his father's motor business, founded by his father in 1897, to expand his aircraft engine repair business and the manufacture of aircraft parts. [1] In 1919 the distribution of cars and commercial vehicles resumed and operations extended to London and other part of the country. [2]
All 567 engines use forced induction, with either a Roots blower or a turbocharger. The turbocharger (a combination turbo-compressor system) follows EMD's innovative design that uses a gear train and over-running clutch to drive the compressor rotor during low engine speed, when exhaust gas temperature (and, correspondingly, heat energy) alone ...