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From: <atlasyts@bellsouth.net>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Subject: Re: [FlyRotary] Re: turbo oil drain
Date: Tue, 14 Jun 2005 20:29:12 -0400
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> 
> From: "Russell Duffy" <13brv3@bellsouth.net>
> Date: 2005/06/14 Tue PM 06:16:48 EDT
> To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
> Subject: [FlyRotary] Re: turbo oil drain
> 
> Rusty, you can create a 5 psi bypass of the pump. In suction the pressure
> relieve valve
> http://enginegearonline.com/prreva.html
> will be shut. If the pump stops, the engine will pressurize the pump intake
> side and the spring loaded valve will open and let the engine push the oil
> through at only 5 psi. How about that? Buly
> 
>  
> Hi Buly,
>  
> If I understand you correctly, when the pump stops, you'd have 5 psi on the
> turbo seals?  If they would take that, I don't think I'd need the pump at
> all :-)  Maybe I didn't understand you correctly?

Rusty, you better check with a turbo specialist. The valve could be a just a regular check valve that will open at 1/2 psi.
Buly