Natural Gas-Driven Emergency Generator Exhaust

[KLH]

Hi,

Does anyone know the purpose of the conical shaped device located between the generator and the silencer?

Thanks.

 

[Artisi]

Mike, it could be a pump priming system - but it would have to go after the muffler.

 

[racookpe1978]

Ain't it fun to keep re-designing some other guy's rusted-out, busted-up, jerry-rigged junk old hardware? 8<)

On his budget no less!

PS. Merry Christmas to all. Robt

 

[racookpe1978]

MikeHalloran (Mechanical)
24 Dec 09 23:34
I could swear that it's a commercial _something_, that I have seen before, not a homebrew something ... but I can't remember what it is.

Mike:

I have worked with oil system check valves that are built similar to this cone + flange setup: The flapper is mounted on a central flat plate ( same size as the pipe flange) mounted between a cone and the inlet pipe flange. The flapper swings out into the space provided by the cone, swinging on two mounts at the top.

 

[whammett]

The ONLY reason I could see in using that, would be if for some un-godly reason, the system needed a little bit of backpressure. The sudden change would restrict flow causing some backpressure.
Just a suggestion, still not sure what the purpose of the backpressure would be.

 

[flash3780]

I feel like this is the "What Is It" portion of Ask This Old House.