Fans Waste Power Says P. A. C. Brockington, A.m.i.mech.e....

efficiency under operating conditions is difficult to estimate by dynamometer tests, and for this reason many of the figures for fan horsepower, quoted from static trials, are......

Ew Principle In Telescopic Damper I N A Conventional...

damper . there is a compressible medium in the system to allow for the extra volume of the piston rod as it enters the working chamber on the down-stroke of the piston. In a new......