Belonging to United Technologies (Group) Corporation of America (Otis Elevator Company is one of them), it is called "the father of air conditioning" because of its founder Willis? Dr. Carrier invented the world's first air conditioning system in 1902. At present, Carrier ranks first in the global air-conditioning market (the sales in 2005 was about $654.38+0.05 billion). Carrier's products are relatively complete: from centrifuges, screw machines, lithium bromide units to piston units, domestic and commercial small units are produced.
Both centrifugal unit and lithium bromide unit were invented by Carrier.
Trane (Trane):
Trane is a subsidiary of American Standard Company, a bathroom manufacturer.
He is good at centrifuge and screw technology, and the three-stage compression centrifuge group produced by him (traditional civil centrifuges are all single-stage compression, and the compressor speed reaches 10000/ min, which makes great noise; Trane's three-stage compression centrifuge has a rotating speed of only 2950/ min, and the running noise is very small! ) enjoys a high reputation in the industry-even Carrier, the inventor of the centrifugal unit, is candidly admit defeat. Trane's products belong to high-grade and high-quality products in the industry. Trane's global sales are about $5 billion, ranking third in the world. Trane ranks first in the US market share, higher than Carrier, York and Macquarie.
YORK company (York):
Known as "the world's largest independent manufacturer of HVAC and refrigeration equipment, 1874 (30 years earlier than Carrier) was established in Yorktown, Pennsylvania, USA". Its company publicity materials show off that "York products are trusted by users all over the world for their high efficiency, energy saving and high reliability. Choosing York equipment in the world's most famous buildings and places with the highest requirements for air conditioning is an ironclad proof of the high quality and reliability of York products. Among them, there are the tallest buildings in the world: Kuala Lumpur Convention Center (1476 feet high), Western Europe Tower (1 10 stories high, 1454 feet high) and World Trade Center (1/kloc-0 stories high,/kloc) And some of the most influential buildings, such as the White House, the US Capitol, the British Parliament Building, the Channel Tunnel, the Paris Tower, the Sydney Opera House, the Tokyo World Trade Center, the Hong Kong Convention and Exhibition Center and the Hong Kong Central Plaza. Even the US Navy, the most demanding air conditioner user today, trusts York's products, making York the exclusive supplier of refrigeration equipment used on US Navy warships. "
It used to say that Citibank was its largest shareholder and was acquired by Johnson Company in the second half of 2004.
From a professional point of view, York is best at the units used in industrial occasions and low-temperature refrigeration industry (York boasts that "the most demanding user in the world, the US Navy ship" uses York's low-temperature refrigeration equipment, which is very different from ordinary civil comfortable air conditioners! ), the quality of civil comfortable air conditioning products is not as good as carrier, or even as good as Trane.
But in the China market, York is the best in public relations marketing, with a market share higher than Carrier and much higher than Trane.
York company's global sales are about 4 billion US dollars, ranking (possibly) the fourth in the world (equivalent to Maxwell).
Mcville:
Mcwell Company 1872 was founded in Minneapolis, Minnesota, USA. Its products are diverse and complete in specifications, and R 134A is the earliest refrigerant used in the industry. The quality of Maxwell's products is not much different from that of York, and they are all in general terms. Maxwell's global sales are about 3.4 billion US dollars, ranking (possibly) fifth in the world. It was acquired by Daikin in Japan in the first half of 2006.
Among the centrifugal and screw units of these four companies, York's compressor is open (the motor is external), and the other three are closed (the motor is built in the compressor). From a professional point of view, the open compressor is not suitable for civil comfort air conditioning occasions, and has inherent defects such as loud noise, oil leakage and refrigerant leakage. The price ranking of centrifugal and screw units of the four major companies of civil comfort air conditioning is as follows: Trane is the highest, followed by Carrier and York (the price difference between them is not big), and Maxwell is the last. Of course, the standard price is similar to everyone, but it depends on whose reserve price is high or low. Carrier has the highest output and the largest share in the domestic air-conditioning terminal equipment market.