Fan for ovens
AssigneeMa. Ti.Ka. S.R.L.
InventorsOscar Martini, Enrico Martini
Life of this patent
Estimating the term…
Abstract
Fan for ovens, which comprises a support plate and multiple blades projectingly fixed on the support plate and arranged around the rotation axis of the fan. Each blade is provided with a rear edge fixed to the support plate, with an external edge and with an internal edge placed to connect between the rear edge and the external edge and facing the front side of the fan. The fan also comprises a ring fixed to the blades, positioned in a position substantially intermediate between the internal edge of the blades and the support plate in order to create a non-interference zone.
Claims13
Fan (1) for ovens, which is provided with a rotation axis (X) thereof and is extended along said rotation axis (X) between a front side (2) and a rear side (3) directed in opposite directions with respect to each other, and is provided with a peripheral side (4) which is extended around said rotation axis (X) between said front side (2) and said rear side (3);
- said fan (1) comprising:
- a support plate (5) which is arranged substantially orthogonal to said rotation axis (X) and is provided with a first face (6), which delimits the rear side (3) of said fan (1), and with a second face (7) directed towards the front side (2) of said fan (1);
- multiple blades (8) projectingly fixed on the second face (7) of said support plate (5) and arranged around said rotation axis (X);
- each said blade (8) being provided with:
- a rear edge (15) fixed to the second face (7) of said support plate (5);
- an external edge (17) arranged on the peripheral side (4) of said fan (1);
- an internal edge (16) placed to connect between said rear edge (15) and said external edge (17) and facing the front side (2) of said fan (1);
- a ring (9) which is fixed to said blades (8), is extended around the rotation axis (X) of said fan (1), is provided with a third face (11) directed towards the rear side (3) of said fan (1) and with a fourth face (12) directed towards the front side (2) of said fan (1);
- and is positioned in a position substantially intermediate between the internal edge (16) of said blades (8) and said support plate (5);
- wherein the external edge (17) of each said blade (8) is provided with a recess (18) which is open on the peripheral side (4) and on the rear side (3) of said fan (1) and in such recess (18) said ring (9) is fixed;
- wherein the recesses (18) of said blades (8) define a non-interference zone (130) which is extended between the rear side (3) of said fan (1) and the third face (11) of said ring (9).
Dependencies are inferred from the claim text.