In 2003, Hitachi introduced a new high back pressure scroll compressor with internal oil separation function for the first time in the industry.
In 2008, Hitachi applied the leading high-capacity scroll compressor to a new generation of commercial air conditioners. 19 10, the first motor in Japanese history came from Hitachi.
1964 The frequency converter, motor and control system of the 6000KW frequency conversion locomotive of Shinkansen in Japan all adopt Hitachi products;
1987, Hitachi pioneered the speed sensorless vector control technology of frequency converter, which has a global patent. On June 30th, 2008, at 65438+, the awarding ceremony of "Energy Saving Award" was held in Tokyo, Japan. * * * Winner 12, Hitachi inverter air conditioner is the only air conditioner brand that won the award. Hitachi Air Conditioning won this honor for 8 times in the history of air conditioning, which shows the scientific and technological strength of the leader of inverter air conditioning.