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5RT-PRC007-EN
Trane 3-D
®
Scroll Compressor
Simple Design with 70% Fewer Parts
Fewer parts than an equal capacity
reciprocating compressor means
significant reliability and efficiency
benefits. The single orbiting scroll
eliminates the need for pistons,
connecting rods, wrist pins and valves.
Fewer parts lead to increased reliability.
Fewer moving parts, less rotating mass
and less internal friction means greater
efficiency than reciprocating
compressors.
The Trane 3-D Scroll provides important
reliability and efficiency benefits. The 3-D
Scroll allows the orbiting scrolls to touch
in all three dimensions, forming a
completely enclosed compression
chamber which leads to increased
efficiency. In addition, the orbiting scrolls
only touch with enough force to create a
seal; there is no wear between the scroll
plates. The fixed and orbiting scrolls are
made of high strength cast iron which
results in less thermal distortion, less
leakage, and higher efficiencies. The
most outstanding feature of the 3-D
Scroll compressor is that slugging will
not cause failure. In a reciprocating
compressor, however, the liquid or dirt
can cause serious damage.
Low Torque Variation
The 3-D Scroll compressor has a very
smooth compression cycle; torque
variations are only 30 percent of that
produced by a reciprocating compressor.
This means that the scroll compressor
imposes very little stress on the motor
resulting in greater reliability. Low torque
variation reduces noise and vibration.
Suction Gas Cooled Motor
Compressor motor efficiency and
reliability is further optimized with the
latest scroll design. Cool suction gas
keeps the motor cooler for longer life and
better efficiency.
One of two matched scroll plates —
the distinguishing feature of the scroll
compressor.
Chart illustrates low torque variation of
3-D Scroll compressor vs
reciprocating compressor.
Proven Design Through Testing and
Research
With over twenty years of development
and testing, Trane 3-D Scroll
compressors have undergone more
than 400,000 hours of laboratory testing
and field operation. This work combined
with over 25 patents makes Trane the
worldwide leader in air conditioning
scroll compressor technology.
Features and
Benefits