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They have similar specifications as new MPXpress locomotives, but are rebuilt and refurbished from units that had previously operated on MARC as GP40WH-2 locomotives. Inside the locomotive, the 3,000 hp EMD 16-645E3C prime mover has been rebuilt and electronics have been upgraded using the same equipment as other MPXpress locomotives, as well ...
J & E Hall is an English manufacturer of refrigeration equipment (today part of the Daikin group). It was originally established as an iron works in Dartford, Kent in 1785, with products including papermaking machines, steam engines and gun carriages, before it started producing refrigeration machinery in the 1880s.
By 1950, the company was a large manufacturer of commercial refrigeration equipment. It entered the relatively new field of air conditioning in 1952 with its first window air conditioning units. The company is credited with several innovations, including introducing the first refrigerated display case for food retailers.
In air conditioning, an inverter compressor is a compressor that is operated with an inverter. In the hermetic type, it can either be a scroll or reciprocating compressor . This type of compressor uses a drive to control the compressor motor speed to modulate cooling capacity.
Animation of a spinning scroll compressor. Léon Creux first patented a scroll compressor in 1905 in France and the US. [2] Creux invented the compressor as a rotary steam engine concept, but the metal casting technology of the period was not sufficiently advanced to construct a working prototype, since a scroll compressor demands very tight tolerances to function effectively.
Break-in or breaking in, also known as run-in or running in, is the procedure of conditioning a new piece of equipment by giving it an initial period of running, usually under light load, but sometimes under heavy load or normal load. It is generally a process of moving parts wearing against each other to produce the last small bit of size and ...