Pressurized Oil Accumulators

[Prop Job]

I would prob have taken you up on that a few days ago but have since ordered the 1.5 qt 23903.

How many seconds are you guys seeing out of the 1.5 qt units with no check valve? I also have an inverted system with my valve mounted as stated above but, for a non-aerobatic prop, there is too much of a delay in the transition from normal to inverted operation and during zero G of more than 3-4 seconds.

[ronschreck]

Originally Posted by Prop Job

I would prob have taken you up on that a few days ago but have since ordered the 1.5 qt 23903.

How many seconds are you guys seeing out of the 1.5 qt units with no check valve? I also have an inverted system with my valve mounted as stated above but, for a non-aerobatic prop, there is too much of a delay in the transition from normal to inverted operation and during zero G of more than 3-4 seconds.

I get about 6 or 7 seconds of pressure with a 1.5 quart accumulator.

[Michael Henning]

I just ordered the check valve... seems simple to install and will direct oil in one direction to the engine.

[witek]

Hello,

I bought the Moroso 1.5 QT. accumulator for my RV7A project.
Where do you recommend to install this unit?
My first idea was to install it on the firewall on the side of engine.

Witold

[ronschreck]

Originally Posted by witek

Hello,

I bought the Moroso 1.5 QT. accumulator for my RV7A project.
Where do you recommend to install this unit?
My first idea was to install it on the firewall on the side of engine.

Witold

You can put it anywhere you want. Many aerobatic planes have it in the tail if they need weight back there. Of course the hose would be expensive, but the length of hose is not an issue otherwise.

[witek]

Hello,

Moroso 1.5 QT. accumulator in RV7A - which oil line the accumulator should be connected to?
Moroso recommends to install T-piece on oil line from oil cooler to engine - is it correct installation on Lycoming IO360?

Photos of existing installation would be very helpful for me :-)


Thanks,
Witold

Originally Posted by ronschreck

You can put it anywhere you want. Many aerobatic planes have it in the tail if they need weight back there. Of course the hose would be expensive, but the length of hose is not an issue otherwise.

[ronschreck]

Originally Posted by witek

Hello,

Moroso 1.5 QT. accumulator in RV7A - which oil line the accumulator should be connected to?
Moroso recommends to install T-piece on oil line from oil cooler to engine - is it correct installation on Lycoming IO360?

Photos of existing installation would be very helpful for me :-)


Thanks,
Witold

You connect at any point. I put a T-fitting at the oil cooler exit.

[witek]

Thanks Ron,

In my application would be easier to connect T-piece on the oil line from engine to cooler (this one which is located lower on Lycoming 360 engine). But I'm afraid if this option will work correctly due to the fact that this line is very close to oil sump - it means if oil pressure in engine drop, the oil from accumulator can go to sump instead of to engine. ??? But I'm not sure if it works in this way.

Witold

[ronschreck]

Originally Posted by witek

Thanks Ron,

In my application would be easier to connect T-piece on the oil line from engine to cooler (this one which is located lower on Lycoming 360 engine). But I'm afraid if this option will work correctly due to the fact that this line is very close to oil sump - it means if oil pressure in engine drop, the oil from accumulator can go to sump instead of to engine. ??? But I'm not sure if it works in this way.

Witold

That's a pressurized line too. It will work.

[f14av8r]

I'm actively researching these for my -4. Here's a good video of a 3 quart unit in action - https://youtu.be/vyaGoj60A6s

Too big for an RV but a good demonstration of operation.