Chapter 1.6: Types of Actuators

Question 1

what is a single action actuator?

Answer 1

fluid pressure is supplied to piston face to extend it linearly

Question 1

what is an actuator?

Answer 1

transformer energy in the form of fluid pressure into mechanical force

Question 2

what is a double action actuator?

Answer 2

2 port actuating cylinder

Question 3

how is a double action actuator controlled by?

Answer 3

four way selector valve

Question 4

what kinds of rotary actuators are there?

Answer 4

rack and pinion actuators

Question 5

formula to calcualte flow rate to extend cylinder

Answer 5

Q_{pump supply} = A_bore * V_extension

Question 6

formula to calculate flow rate coming out of rod end side

Answer 6

q_{return to resevoir} = (A_bore - A_rod) * V_extension

Question 7

formula to for retratction speed

Answer 7

V_retraction = (Q_{pump supply}) / (A_bore - A_rod)

Question 8

formula for flow coming out of end cap

Answer 8

q_{return to reservoir} = A_bore * V_retraction

Question 9

formula to calculate power to drive pump

Answer 9

Power = (P*Q)/η)

P - pressure

Question 10

m³/min to l/min?

Answer 10

multiply by 1000