Dry sump tank design

[outlawracer]

I'm getting started doing some reasearch on designing a dry sump tank. I was wondering if somebody had some rule of tumb's, guidelines or a recomandation on literature on this subject. My specs on this oil system is a 1 1/4 in pump feed line (tank outlet), one AN12 return and 19 qts total tank capacity.

My questions are:

(1) Separation tubes design
(a) Consistant cross sectional area or would an cross sectional area increase be benificail for the antiaeration process due to a (relativly low) pressure drop.
(b) Slots or holes and what ratios seems to work well, by ratio I think ratio of tube dia.
(c) Short or long sepration tubes

(2) Oil pick up
(a) Bell mouth type pickup or a duckbill type pickup and any pointers on how to dimensionalize either one. I have been told that I need a 15 sq in duckbill but there I want to know how to dimensionalize something like this.

(3) Oil tank vent
(a) size as a ratio of outlet ???
(b) Special consideration if a duckbill type pickup is used

I know this a big post but please bare with me )

thanks alot

 

[slotcar]

I am also looking into a dry sump system. Do you know where I might find some information on the basic operation of a dry sump?

 

[amorrison]

See

thread71-127346

 

[amorrison]

Also
Search Eng-tips for "dry sump" - lots of hits.

 

[r2800]

Over here we use pas pumps drawing oil from the base of the sump, float controlled anti aeration valves to allow only oil to return to the oil tank,a cooler & filter is also incorporated into the supply pipe to keep the oil cool & clean.
Perforated metal windage trays are also added to assist also of course all this is homemade and you can get a lot of information from piston aero engine books.