In 2003, Denso launched the first small, light-weight electric
compressor for hybrid electric vehicles.
compressor provides comfortable air conditioning even during
“idle” stops (when the engine shuts down to save fuel and
This maintains cabin comfort while significantly
reducing fuel consumption.
Benefits and Features
Small size and
By adopting a newly
developed motor winding method, DENSO achieves 30 percent size
reduction and 53 percent weight reduction of the electric compressor
compared to traditional electric compressors, providing more space
in the vehicle and further improving fuel consumption.
High revolution speed
(7500 rotations per minute), regardless of the engine speed, reduces
the displacement (amount of refrigerant discharged from the
compressor per one rotation) to 18 cm3, allowing the compressor to
be more compact.
and quiet operation
compressor combines a scroll compressor and a DC brushless motor.
The optimized scroll form and advanced motor control technology
improves efficiency and reduces noise and vibration.
Advanced motor control
technology enables the electric compressor to start at a high
revolution speed as soon as the air conditioning system is turned