38 | ROTEC AEROSPORT
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LUBRICATION
SYSTEM / PLUMBING
OIL TANK
GENERAL
BASIC DESIGN REQUIREMENTS
As with all piston engines, the lubrication system is the lifeblood of the Rotec Radial and, therefore, it is critical that the
correct fluid dynamics are achieved for engine survival and longevity.
The Rotec Radial utilises a full dry sump lubrication system and, as a result, requires the use of an oil tank, which is
mounted separately from the engine. The oil tank construction is the responsibility of the aircraft manufacturer and
should be designed within the parameters of the airframe, which, of course, will vary for each machine.
1. Have an oil capacity of 6-8 litres or more of oil with a minium usable level of 3 litres.
2.
An air pocket above the oil level of approx. 20%. This is allocated as an area for the expansion and over fill of oil
and is where the scavenge pump, oil pressure relief, and crank case vents all return oil to.
3. Oil Tank to be mounted slightly above CL of lower oil pump. With aircraft in static position. This allows for a head
of oil to be present at the inlet of oil pump.
4.
Various fittings on the tank for:
•
(A) Oil pressure relief valve return 3/8 nipple for hose clamp attachment fitted to high point on tank.
•
(B) Crank case vent. 3/8 nipple, hose clamp attachment fitted to high point on tank.
•
(C) Crankcase scavenge pump return. 3/8 nipple, hose clamp attachment fitted to high point on tank.
•
(D) Oil tank breather. 3/8 nipple vented to atmosphere, fitted to very highest point on tank or if higher than tank
fit to oil filler cap.
•
(E) Oil drain sump plug tapped into very lowest point on tank.
•
(F) Oil pump suction pick up AN fitting to suit 3/8 ID hose, mounted slightly above lowest point on tank so as to
avoid sedimentary debris.
•
(G) Oil temperature sender mounted to lowest point on tank (could also be used as sump plug).
•
(H) Oil filler port and cap. Could also incorporate tank vent as described in (E).
WARNING!
The above mentioned oil tank does not facilitate inverted flight or negative gravity operation!!!! Oil starvation for just a
short period can cause engine failure and or permanent engine damage.
OIL TANK BY ROTEC AEROSPORT
We design and fabricate Rotec Radial oil tanks, specifically to suit your airframe.
Save time and the hassle of doing it yourself. The fastest and often cheapest way to move your project forward is to
have our experienced fabricators produce auxiliary components for you.
Just follow these simple steps:
1. Contact [email protected] for pricing information.*
2. Fill out the Oil Tank Dimensions Form that will be sent to you.
3. Send your completed form to [email protected]. An engineering drawing will be generated and
then sent back for your approval.
4. Once your approval is received, fabrication will be scheduled.**
*NOTE:
Rotec do not supply oil tanks that allow inverted use. Deviations from the standard top mount and side mount de-
signs incur additional costs. For customers who have purchased a new engine and wish to fabricate their own, and oil
tank design is offered free of charge if requested.
**NOTE:
While we have designed oil tanks for many aircraft, each is different and in order to ensure correct fitments, custom
-
ers must provide dimensional data and then approve the engineering drawing before fabrication commences. If the
mount is purchased with an engine it will generally be fabricated towards the end of the engine production batch,
assuming payment has been received.
Summary of Contents for AEROSPORT R2800
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