Positive Compressor
Positive Compressor
Positive Displacement Compressor Consists of
A positive displacement compressor basically consists of a movable member inside
a housing. The compressor has a
piston for a movable member. The piston is
connected to a crankshaft, which is in turn connected to a prime mover (electric
motor, internal combustion engine). At inlet and outlet ports, valves allow air to
enter and exit the chamber.
A positive displacement compressor basically consists of a movable member inside
a housing. The compressor has a
piston for a movable member. The piston is
connected to a crankshaft, which is in turn connected to a prime mover (electric
motor, internal combustion engine). At inlet and outlet ports, valves allow air to
enter and exit the chamber.
How a Positive Displacement Compressor Works
As the crankshaft pulls the piston down, an increasing volume is formed within the
housing. This action causes the trapped air in the piston bore to expand, reducing its
pressure. When pressure differential becomes high enough, the inlet valve opens,
allowing atmospheric air to flow in.
As the crankshaft pulls the piston down, an increasing volume is formed within the
housing. This action causes the trapped air in the piston bore to expand, reducing its
pressure. When pressure differential becomes high enough, the inlet valve opens,
allowing atmospheric air to flow in.
With the piston at the bottom of its stroke, inlet
valve closes. The piston starts its upward movement to reduce the air volume which
consequently increases its pressure and temperature.
valve closes. The piston starts its upward movement to reduce the air volume which
consequently increases its pressure and temperature.
When pressure differential
between the compressor chamber and discharge line is high enough, the discharge
valve opens, allowing air to pass into an air receiver tank for storage.
between the compressor chamber and discharge line is high enough, the discharge
valve opens, allowing air to pass into an air receiver tank for storage.
Categories:
Pneumatic
0 التعليقات:
Post a Comment