One for the Merlin experts

“Two massive oil jets squirt oil into the reduction gears at the point of engagement, so it’s not a question of too little lubrication.”
From http://www.supercoolprops.com/articles/gwhitegearheads.php

I should have phrased that better.

I was wondering why there were two oil jets, and two different ones at that?

Anybody know?

WA$.

Well thats another lump of Lanc. ID’d. Thanks for all the replies the amount of information on this site is amazing.
Andy.

Ah good I’ve got my bit of education for today nice and early, I don’t need to learn anything later and can sleep peacefully.

Any idea why the two oil jets?

WA$

A lot of pressure between those reduction gears.

Nice drawing.

Any idea why the two oil jets?

WA$.

A good guess. 🙂

Mark

As an educated guess I would say it’s an oil spray jet to lubricate the reduction gear (or bearing).

In your second photo there appear to be two similar (hollow) rods and they look in the right place to spray oil between the gears as they mesh (and onto the bearing).

WA$.

Vacuum pump drive?

Best wishes
Steve P

Same engine different angle – any help ???

I’ve been thinking and I reckon it could be something like a mechanical rather than hydraulic pitch control for the prop. I don’t know much about the technical side of aereo engines so I could well be barking up the wrong tree(or just plain barking and out of my tree)

Thanks for the reply.
Not sure,the tapered part seems to be inside the reduction gear. The photo is from a crashed (I think) Mustang in a very good local museum.
Andy

Attachment point for an ancillary item? Or if it’s driven then it could be the drive for an acillary