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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.
As early as 1924 Rootes had become the largest truck and car distributor in the United Kingdom. [3] They advertised that their showrooms in Devonshire House , Piccadilly could supply new cars priced from £145 to £3,000 manufactured by Rolls-Royce, Daimler, Sunbeam, Austin, Hillman, Fiat or Clyno.
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 ).
The Roots blower, a type of air turbine, was invented by the Roots brothers in Connersville in the 1850s, patented in 1859, and manufactured in Connersville for over 150 years. The town of Connersville became a chartered city in June 1869, and William H. Beck was chosen as its first mayor. The first high school opened in 1875.
This was an opposed-piston engine with a choice of two, three and four cylinders (2ZG9, 3ZG9, 4ZG9); the two-cylinder version developed 120 bhp. Its layout was very similar to the Commer engines, but it used a piston scavenge pump rather than a Roots blower. This was mounted vertically above one rocker, driven by a bellcrank from the main rockers.
The post-war Commer TS3 was similar but the Sulzer had a piston-type blower instead of a Roots blower. It was made in two sizes: 69 mm bore x 101.6 mm stroke or 89 mm bore by 120 mm stroke. It was made in two sizes: 69 mm bore x 101.6 mm stroke or 89 mm bore by 120 mm stroke.
Roots blower – A positive displacement lobe pump (a lobe-type compressor) Slip factor – Measure of the fluid slip in the impeller of a compressor or a turbine; Trompe – Water-powered air compressor; Vapor-compression refrigeration – Refrigeration process