Studies on the Improvement of Cooling Performance of Farm Air Cooled Engines (V)

Abstract

In this report, the cooling performance of farm air cooled engine which was cooled by the radial fans having six different number of blades was compared, and the following results were obtained.
In this test, it was necessary to be cautioned that the cylinder temperature approached the extremely high value of 185°C at the rated load. The cylinder temperature rose higher han 185°C when cooled by less than eight blades fans.
From the viewpoint of the cylinder temperature and the required horse power of cooling fan, it seems that twelve blades fan was most favorable in this test.