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Hitachi Appliances, Inc.

Hitachi

Compact Size

Saving Space&Low Height

Low Noise

The Scroll compressor has lower noise levels in the 200-500Hz range than rotary compressors.

Low Vibration

The vibration produced by a scroll compressor is one tenth of that produced by a rotary compressor.Therefore any noise or vibration produced by the compressor during start up or running will be greatly reduced.

High Pressure Chamber

High structure simplified construction(without the tip-seal and thrust bearing) assures atable operation and long life. The mechanical loss is minimised by these optimised forces thus ensuring improved performance.

Oil Injection Cooling System for Cryogenic Applications

This system maintains discharge gas and motor temperature at low levels, achieving simultaneously high reliability and high efficiency.

  1. Suction Pipe
  2. Oil Injection Pipe
  3. Discharge Pipe
  4. Oil Cooler
  5. Scroll Compressor
    (High Pressure Chamber)
    Include Oil Separator Effect
  6. Oil Outlet Pipe
  7. Strainer

Valuable New Technology

Higher Efficiency at Low Temperature Adoption of World's First "Algebraic Spiral"

The New Series attains up to approximately 20% more energy savings than its predecessor, by changing the shape of the spiral wall in the heart of the scroll compressors from a conventional round involute curve to algebraic spiral curve.
Efficiency in the low freezing temperature range (when suction pressure is low), is improved as the algebraic spiral increase the compressor's compression ratio.
Performance is also improved as the spiral wall is thickened in the centre.

Performance Comparison