3000W Chinese Gensets Info.

professor95 wrote:
Going back several years, the first full enclosure I built isolated the muffler from the rest of the components but did not insulate it so that heat would not radiate.

This design was very effective in reducing heat within the enclosure and would be a good approach for anyone attempting to design a new, portable sound abatement enclosure.

While it may sound silly, the use of 1/2" Hardibaker cement panels to create this isolation is ideal. Waterproof, heatproof, high density, easily cut for fabrication. The isolation panels I used in the above design were aluminum covered with auto carpet underlayment.

This (experimental) enclsure actually worked extremely well at reducing sound and still providing adequate cooling, but proved to be too large and heavy for my needs. Aditionally, I had not fully resolved the fuel tank/pump issue when I built this enclosure.

I think that is an excellent approach. There are a couple of things I would do differently. First, I would use the coffee can idea you mentioned earlier to extend the end of the generator head to an opening in the enclosure, so cool air would be drawn directly into gen head. Second, I would open up a vent between the cylinder and muffler, so all the air drawn into the housing (from the engine and generator) would exit the enclosure by way of the muffler. I believe if you do that, you will not need the fan in the bottom of the enclosure.

Bob R.