As a means of power transmission, hydraulics has many advantages. But overall efficiency is NOT one of them. A single-reduction gearbox has an efficiency of 98 to 99 percent, double-reduction 96 to 97 percent and triple-reduction 95 percent. And a chain drive in good condition has an efficiency of 97 to 98 percent.
A high-performance piston pump has an efficiency … Read more
The hydraulic pump is the hardest working component of a hydraulic system. And as the pump wears in service, internal leakage increases and therefore the percentage of output flow available to do useful work (volumetric efficiency) decreases. If volumetric efficiency falls below a level considered acceptable for the application, the pump will need to be changed-out. In a condition-based maintenance … Read more
In the current inflationary environment, the debate concerning peak oil (the end of cheap mineral oil) and global warming (the end of the planet as we know it) have been somewhat sidelined.
But these two major issues have not gone away. And they will almost certainly influence the source and cost of our energy needs for some time to come.… Read more