Fluid Power Journal

Decreasing Downstream Pressure To Increase The Flow

By Ernie Parker, CFPAI, CFPSD, CFPS, CFPMM, CFPMT, CFPMIP, CFPMMH, CFPMIH In the new International Fluid Power Society’s Reference Handbook and the Pneumatic …

Problem: Calculating The Effect Of High Wind Force

There have been some very strong winds in the eastern United States with upwards of 70 to 90 MPH. How much force and horsepower would the wind produce pushing …

Problem: Compressor Shuts Off When Pressure Rises

When troubleshooting for an air leak, a check was added between the separator and the receiver. Then every 10 minutes the compressor would try to start and …

Problem: Sizing a Two-Stage Air Compressor

Given: A two-stage air compressor with an intercooler System Pressure: 120 PSIG. Each stage raises the pressure 60 PSI. Initial air temperature: 70° F …

Problem: Car Hoist

How many SCF will it take to fully extend the cylinder if the air/oil tank is full of oil when starting? How many SCF will it take to fully extend the cylinder …

Problem: Cascading Cylinders

What is the maximum stroke if the blind end of each cylinder is connected to the rod of the previous cylinder? How many different discrete positions are there? …

Problem: Total Energy Needed

What is the total energy in Joules needed to be dissipated by a shock absorber that is positioned under a hoist that releases a free-falling load of 100 kg, 1 …

Problem: Calculate Cylinder Size

Winner of this Air Teaser: Ali Dashti, Applied Industrial Technologies, Inc., San Marcos, CA Deadline past. Not available for submissions. This teaser is …

Problem: Calculate SCFM

Calculate SCFM: 50 Pound Spring 2″ Diameter Cylinder 6″ Stroke 1 Second to Extend 1 Second to Retract No Dwell Time Hose is 3/8″ diameter and …

Problem: Bucket Cylinders

This is a sketch of a sandbox loader and bucket. Calculate the vertical distance that the bucket cylinders (2) should be mounted above the pivot points to …

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