LT-S-(L) Technical manual
If the piston is at the left side of the 50% hole (the loading is less than 50%), the
oil at the right side of the piston will pass through SV3 (50%) and discharge to the
low pressure side then the piston will move to right side until the position blocks the
50% hole. Thus the compressor is loaded to 50% smoothly.
Vice versa, if the piston is at the right side of the 50% hole (the loading is more
than 50%), the oil in the left side of the piston will pass through SV3 (50%) and go
out to the low pressure side then the piston will move to left until the position blocks
the 50% hole. Thus the compressor is loaded to 50% smoothly.
75% Load
Under 75% load, SV1
（
unload
）
&SV4 (75%)
are energized.
The logic of 75% load is
similar to that of 50%. The
piston can be held around
75% position by 75% hole
to make the compressor
run under 75% load.
Figure 3-5.75% Load
100%Load
Under 100% load, SV5
(100%) is energized. In this state,
the high pressure oil passes to the
left side of the piston continuously.
At the same time, the oil in the
right side of the piston passes
through SV5 (100%) then goes to
the low pressure side to make the
piston be held at 100% position.
fig3-4.50%负载
fig3-6.100% Load
