STEEL WEIGHT 50 LB. LINKAGE WEIGHT 4 LB. 10 OZ. A FORCE OF 5 LB. 2 OZ., APPLIED AT THE UPPER TIP, IS REQUIRED TO RAISE THE PISTON WALLS. TOTAL LOAD 59.75 LB. VOLUME 23.589 CUBIC INCHES PRESSURE 60" WG (2.165 PSI) LIFT 1 INCH This drawing is based on Robert J. Blanchard P.Eng.'s recorded observations, while using certified test equipment. Note that 23.589 cubic inches of fluid at 60" WG (2.165 PSI) pressure, is at the point of equilibrium, with a 59.75 pound load, at one inch of travel.. TOTAL LOAD 51.07 LB. LIFT 1 INCH VOLUME 23.589 CUBIC INCHES PRESSURE 60" WG (2.165 PSI) This drawing is based on completely frictionless conventional piston. Note that 23.589 cubic inches of fluid at 60" WG (2.165 PSI) pressure is at the point of equilibrium with a 51.07 pound load, at one inch of travel. Note that the diamond-shaped piston lifts 16.9% more load than the conventional piston through one inch of travel with the same volume of fluid, at the same pressure. BOUNDARY FACE AREA EQUALS 23.589 SQUARE INCHES MECHANICAL ADVANTAGE OF THE NEW DIAMOND-SHAPED PISTON RELATIVE TO THE CONVENTIONAL PISTON 1 PSI = 27.71" WG DIAMOND-SHAPED PISTON CONVENTIONAL PISTON 13.282
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