Hi, I am in the process of designing some production tooling, slightly outside my normal dutys. I have a dovetail slide which is about 400mm long and 150mm wide, the female part has 4 brass slipers (one on each side and two on the top), is brass the appropriate material to use here (particular...
Pre 1997 Husaberg engines (350cc 501cc and 600cc singles) did not have oil pumps, the top end is splash feed by the cam chain, the bottom end is essentially a dry sump, very small crankcase volume much like a 2-stroke (and full circle crank webs)with a reed valve to alow oil to be pumped out on...
Also with the pivotal engine the 'active' cooling of the piston must reduce the engines efficiency, while the combustion chamber shape is also far from ideal. I like how the picture of the engine in a car does not show any of the other parts required to get significant power out of this engine...
It might not belong here, but here is another 'new' engine concept that some of you may be interested in
www.pivotalengine.com
I dont think I have seen it on here before but sorry if its a re-post
I attended a tribology conference last year and one of the presentations was on using a liquid who’s viscosity could be greatly changed in the presence of a magnetic field. This was used in a type of hydraulic lifter so effectively the valve lift could be reduced, the maximum lift was governed...
Ive got an air cooled one out of an interpole II (well actually the whole bike) and its chewed up the out side side plates, the aluminium can be reground and then etched but the plasma sprayed coatings are much better.
Is this for a Norton engine?, although I've only tested one type of tungsten I think that the PS304 would be a much better coating but it may not be the best. If I was in the states I would be tempted to try it in a Mazda engine myself
Hohman plating can apply a PS304 coating, I tested this on a rotational tribometer with a nitrided stainless steel seal with a contact pressure of 5Mpa and lubrication, it is more abrasive during the running in process than some other iron based coatings but does appear to be better under...
