Quote:
Originally Posted by funola
Help? I did not ask for help.
|
You asked me why a taper was used on the PS Pump.
and I said I do not know specifically about that..but that in machine theory books I have encountered... one use of the friction taper involves protecting the tool from unexpected problems in the material being dealt with... as an example you can see that a set of Silver and Deming drill bits used by the typical post drill of old times.... all the drill bits had the same size shank.. and a flat on one side... this fit quickly and accurately into the hole in the drill shaft... which had a lock bolt to keep the drill bit in place... a fast and accurate change of bits was thus accomplished..
BUT... if you hit something hidden in the drilled item... it broke the drill bit... or stripped cogs from a gear... or burned a flat on the drive belt...
Most people who need help do not realize they need help.
Here is one possible guess as the the thinking of the MB engineers.... they saw the ps pump as something which could lock up... and ruin the belt driving it... and did not want the ps pump to be an Achilles Heal in terms of the car making it home... or to safety... as the car can be steered ( with great effort )without the power steering pump working...
So they put a emergency slip clutch into the drive line of the PS pump.