Refurbishing a neglected gas grill I found

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Anonymous
Refurbishing a neglected gas grill I found 2017-08-05 06:49:34 Post No.
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Refurbishing a neglected gas grill I found Anonymous 2017-08-05 06:49:34 Post No. [Report]

I found an old Sunbeam gas camping grill in the shed of a house I'm renting from and am trying to refurbish it. The pipe that leads from the gas regulator into the burner has this weird gap in the end, what gives? (Pic related.) When I found it it had aluminum foil wrapped all around this hole as a ghetto way to induce gas to flow into the burner assembly.

Why would the manufacturer leave this open, allowing gas to just escape into the air? It's not a heated part and sits outside of the body of the grill so I can probably just wrap some electrical tape around it to jury rig it into working but I'm confused as to why this "feature" exists in the first place.

Replacement burner tubes for the model of grill (Sunbeam PG230) don't seem to have the same hole in them so I have no idea what the fuck is going on here.

Anonymous 2017-08-05 10:51:42 Post No.1222762
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Anonymous 2017-08-05 10:51:42 Post No.1222762 [Report]

>>1222615
fire need air, fire hot, fire burn

Anonymous 2017-08-05 10:59:56 Post No.1222767
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Anonymous 2017-08-05 10:59:56 Post No.1222767 [Report]

might have originally had a collar that allowed to adjust the air flow

Anonymous 2017-08-06 01:28:37 Post No.1222839
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Anonymous 2017-08-06 01:28:37 Post No.1222839 [Report]

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>>1222767
Like the collars around the openings here in pic related? Making a new one seems easy enough

Anonymous 2017-08-06 07:28:39 Post No.1222959
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Anonymous 2017-08-06 07:28:39 Post No.1222959 [Report]

>>1222615
Regulator regulates pressure.
There's a jet, a fitting with a very small hole after that... which acts as an orifice plate to regulate flow.

In order to burn, that fuel needs to be mixed with air. "Stoichiometric Ratio".

The "weird gap" is part of the venturi, which uses the gas flow to pull air into the mix, where it's ignited at the burner.

Anonymous 2017-08-06 02:06:20 Post No.1223051
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Anonymous 2017-08-06 02:06:20 Post No.1223051 [Report]

>>1222959
Should the hole be wide open like this though? It seems like it should be closed on at least one side

Anonymous 2017-08-06 11:54:05 Post No.1223379
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Anonymous 2017-08-06 11:54:05 Post No.1223379 [Report]

>>1223051
>Should the hole be wide open like this
yes
>it should be closed on at least one side
no

take a look at other cooking grills, you see the same setup

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