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In 1869 the company introduced the "Sturtevant system," still the basis for much interior heating of buildings. Sturtevant adapted hot blast technology for indoor heating, using ductwork to spread the warmed air. [1] In 1876 the company moved its plant to the Jamaica Plain neighborhood of Boston, and soon began work with the United States Navy.
A centrifugal fan is a mechanical device for moving air or other gases in a direction at an angle to the incoming fluid. Centrifugal fans often contain a ducted housing to direct outgoing air in a specific direction or across a heat sink; such a fan is also called a blower, blower fan, or squirrel-cage fan (because it looks like a hamster wheel).
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 ...
The Roots-type blower may achieve an efficiency of approximately 70% while achieving a maximum pressure ratio of two. Higher pressure ratios are achievable but at decreasing efficiency. Because a Roots-type blower pumps air in discrete pulses (unlike a screw compressor), pulsation noise and turbulence may be transmitted downstream. If not ...
A centrifugal fan produces more pressure for a given air volume, and is used where this is desirable such as in leaf blowers, blowdryers, air mattress inflators, inflatable structures, climate control in air handling units and various industrial purposes. They are typically noisier than comparable axial fans (although some types of centrifugal ...
Ayaka Tsurumi (鶴見綾香, born 1994), a Japanese female soccer player Kiyohiko Tsurumi (鶴見清彦, 1917-1976), a Japanese diplomat Ken Tsurumi (鶴見憲, 1895-1984), a Japanese politician
Industrial fans and blowers are machines whose primary function is to provide and accommodate a large flow of air or gas to various parts of a building or other structures. This is achieved by rotating a number of blades, connected to a hub and shaft, and driven by a motor or turbine .
The YF102-LD-100 was tested on an AJ Savage in the early 1970s.. The Lycoming ALF 502/LF 507 (later Honeywell ALF 502/LF 507) is a geared turbofan engine produced by Lycoming Engines, AlliedSignal, and Honeywell Aerospace.