Abstract: The present invention refers to a procedure to prepare a Capsaicin solution in various steps, preferentially three; the first steps consists in the preparation of the solution "A" by mixing 80 milliliters of saline solution, 10 milliliters of polyoxyenthylenesorbitan monooleate and 10 milliliters of paraffin oil. Later on, the second stage is the preparation of solution "B" by mixing 3 milligrams of 8-Methyl-N-Vanillyl-6-Nonenamide in 100 milliliters of the solution "A". Finally the third stage includes the preparation of solution "C" mixing 10 milliliters of solution "B" in 90 milliliters of solution "A" in order to obtain a 10-micromolar concentration of 8-Methyl-N-Vanillyl-6-Nonenamide.

Abstract: In a heater head for a hot gas engine the connection between the regenerator tops and the cylinder tops consists of pipes of equal shape and dimensions. The pipes are shaped partly as involutes on a cone partly as straight tubes on a cylinder surface to ensure uniform gaps between them.