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FluidPowerUser's latest activity
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FluidPowerUser replied to the thread Piston motor speeds.Yes, if the displacement is limited to 50% of the standard motor, the power and the torque will be reduced by the same amount. -
FluidPowerUser replied to the thread Piston motor speeds.I was the hydraulic engineering manager at Caterpillar before moving to BR. Yes, they could very well have changed the swash angle to...
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FluidPowerUser replied to the thread Piston motor speeds.I used to work at Bosch Rexroth and now I work at a distributor for Bosch Rexroth. Try the link below...
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FluidPowerUser replied to the thread Piston motor speeds.Are you confident on that number? The minimum displacement on those A10 motors is 10.6 cc/rev. If this is the motor that is fitted...
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FluidPowerUser replied to the thread Piston motor speeds.A pump pushing oil through a motor will continue to do so until the pressure at the inlet of the motor goes above the max pressure. The...
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FluidPowerUser replied to the thread Piston motor speeds.The speed limit is set by the shaft seal and bearings. High speeds will limit the bearing and seal life.
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FluidPowerUser replied to the thread Adding load sense to a plain valve.If the load sense signal is draining across an orifice, the flow will vary depending on the pressure differential across the orifice. If...
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FluidPowerUser replied to the thread Adding load sense to a plain valve.Yes, that’s basically the right idea. The check valve isn’t required as there will be no pressure from the LS port. Is it safe to...
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FluidPowerUser replied to the thread Adding load sense to a plain valve.Hello Andy Your load sense line needs to go on the A and B line, with shuttle valve between them so that the highest pressure is sent...
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FluidPowerUser replied to the thread Hydraulic Hose Dash ID OD standards.The dash size refers to the bore of the hose and that is always given as nominal bore size as an approximate diameter. The OD of the...
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FluidPowerUser replied to the thread hydraulic breaker repair.Possibly A derivative can be found on Wikipedia. I’ve used it in 1D simulations like Amesim and Matlab.
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FluidPowerUser replied to the thread low hydraulic pressure problem CAT 988K loader.It's not just a line relief, it's also a make up check valve to allow the cylinders to pull oil in if there are external loads acting on...
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FluidPowerUser replied to the thread hydraulic breaker repair.Aim for 0.008mm radial clearance. Equation for leakage is Q = [πR (R-r₀)3/ (6 µ L )] (1+ 3/2ε²) ∆p where ε =e/ (R-r₀) R is bore...
