Cylinders And Compressors Flashcards
Two basic types of hydrostatic motors are what?
Piston and vane
A turbine motor is also called a what?
Hydrokinetic motor
A motor that spins forward and reverse is called what?
Bidirectional
What are 2 categories for pneumatic tools?
Percussive and rotary
Give an example of a percussive and rotary tool?
Percussive- air hammer
Rotary- impact wrench
A cylinder converts…..
Fluid power stored energy into straight line mechanical energy
How does a check valve work?
Allows air to flow only in 1 direction
Stroke adjusters limit stroke only in….
The retract position
Most popular type of cylinder?
Double acting cylinder
When cylinder rod is extended it is called the what?
Thrust load
When cylinder rod is retracted it is called the what?
Tension load
What bad thing can happen when the cylinder rod is fully extended?
Buckling from rod sag
To power a double acting cylinder in both directions you at least have to have a what?
4 way DCV
What is a popular primary seal?
Lip seal
What does a wiper seal do?
Keeps contaminants from entering that managed to pass through the primary seal
Name 3 cylinder mounting styles
Trunnion, clevis and side lug
3 reasons rod buckling can happen?
- Diameter of the rod
- Way cylinder is mounted
- Forces being applied
What are 2 compressor types?
Displacement and dynamic
Most common type of positive displacement compressor found in an industrial pneumatic system is what?
Reciprocating piston compressor
What do vane compressors do?
Generate pumping action by causing vanes to track along circular housing
Difference between motors and compressors?
Motors have the smallest volume chamber.
Compressors have the largest to smallest volume chamber
What are centrifugal compressors used for?
Moving large amounts of air at low pressures
5 unloading methods?
- Bypass
- Stop start
- Inlet throttling
- Inlet valve regulation
- Inlet closure
What do cushions do?
Slows down cylinder at the end of stroke, prevents shock
