Bud Trinkel

Bud
Trinkel
Articles
Use a flow divider to double cylinder speed
A cylinder in a transfer unit on a production line transferred parts from an inbound conveyor to a sizing die, then to an outbound conveyor. Due to changes made upstream, the production line was now “waiting” for the transfer unit.
Fundamentals of Air logic
In the age of microchips and personal computers, air logic can still provide an effective, efficient, and inexpensive means of control for certain pneumatic machines.
CHAPTER 22: Fluid Power Formula
Ch 22: Fluid Power Formula Click here to download the PDF Version of this chapter. ...
CHAPTER 21: Sample Circuits
Ch 21: Sample Circuits For each of the circuit diagrams, identify the numbered components and describe the circuit's operation. A link to the answers follows at the bottom of the page. Click here for the ...
CHAPTER 20: Brain Teasers
BRAIN TEASERS Problem #1 Click here for answer to problem #1 Problem #2 Click here for answer to problem #2 Problem #3 Click here for answer to problem #3 Problem #4 Click here for answer to ...
CHAPTER 19: Moving Part Air Logic Controls
Moving part air logic controls Electrical and electronic devices normally control fluid power circuits. Relay logic circuits, programmable controllers, or computers are common control methods. Another way to control fluid power systems is with moving ...
CHAPTER 18: Miscellaneous Fluid Power Items
Fluid power accessories Miscellaneous items Some components used in fluid power systems do not necessarily fall into any of the categories discussed in preceding chapters. These accessory items may be used for powering, modifying, monitoring, or ...
CHAPTER 17: Air-Oil Systems & Intensifiers
Air-oil cylinders, tanks, and intensifiers Air-oil systems Compressed air is suitable for many low-power systems, but air’s compressibility makes it difficult to control actuators smoothly and accurately. Some low-power systems need the smooth ...
CHAPTER 16: Accumulators
Hydro-pneumatic accumulators Hydraulic accumulators Accumulators make it possible to store useable volumes of almost non-compressible hydraulic fluid under pressure. The symbols and simplified cutaway views in Figure 16-1 show several types of ...
CHAPTER 15: Fluid Power Actuators, part 1
Cylinders, fluid power motors, and rotary actuators Fluid power actuators Fluid power actuators receive fluid from a pump (typically driven by an electric motor). After the fluid has been pressure, flow, and directionally controlled, the actuator ...
CHAPTER 15: Fluid Power Actuators, part 2
Oversize rod cylinders Cylinders with oversize rods can end up with dangerously high intensification pressures under certain conditions. The cutaway in Figure 15-17 shows a cylinder mounted vertically with its rod down. The rod area is approximately ...
CHAPTER 14: Sequence Valves and Reducing Valves
Sequence Valves and Reducing Valves Pressure controls (other than relief and unloading valves) There are some parts of fluid power circuits that need pressure control. (Chapter 9 covered relief and unloading valves that control pressure in pump ...
CHAPTER 13: Flow Controls and Flow Dividers
Speed control of hydraulic and pneumatic actuators In some applications, there are times when it is necessary to vary the speed of an actuator. One method of controlling an actuator’s speed is by using a variable-volume pump. This works well for a ...
CHAPTER 12: Infinitely Variable Directional Valves
Proportional and servovalves Infinitely variable directional control valves The directional control valves discussed so far in this series have all been configured to either pass full flow or completely block flow. The only way to decrease flow through ...
CHAPTER 11: Slip-in Cartridge Valves (Logic Valves)
Cartridge valves The term cartridge valves commonly refers to pressure, directional, and flow control valves that screw into a threaded cavity. These valves are mostly rated for low flows - 40 gpm or less, although some manufacturers have units that ...
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