Hi!: merry Xmas and happy new year 2017 to all.

    I've found in my files these old documents about the ways a
two-rotor unit had the cooling liquid flow arranged, they say that the
rear rotor is always a bit hotter, but I don't know much about the
connection of this hot zone to the site or way liquid flow enters the
housings.

    Has anyone experience with the proposal in the Max Bentele patent
nº 3.007.460 of Nov 7, 1961, or alternative arrangements? Comments?

    Thanks, best regards, + Salut

      Jose Gros-Aymerich

     Madrid, Spain

    Good work Jose. Thanks.

    Yes! I and others have been aware of that problem for years and it
is a worse problem on the 3 and 4 rotor
    engines. We have considered re plumbing the cooling system in the
engine and using an external cold water gallery.

    Paul Lamar  Merry Christmas.

Paul, Jose,
On their "Superlight" engine Steve Beckham and Everett Hatch plumed the
water into the mid plate directly ajacent to the hot area. They flowed
inside to outside with 2 exits. This worked very well. (on the 2 rotor)
the parallel idea shown would be good on 3 or more rotor engines.
Bill jepson

My first idea was having liquid from radiator entering the rear rotor, but I don't know the way flow is actually arranged in the engines of today, the drawings are decades old, and a bit small, I don't see clearly the arrows indicating the flow pathways.

Thanks for the interest, good week, regards, + Salut

Jose Gros-Aymerich

 madrid, Spain

Still done the same way.

Paul Lamar Merry Christmas

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