Patent ID: 11925950
Assignee: KOMET AUSTRIA GMBH
Field: Chemical engineering (Chemistry)
Classification: CPC B | IPC B

Claim 1:
2. A liquid-emitting device (1) for gravity-based irrigation systems, comprising:
a support structure (2) that defines a first longitudinal axis (X1) and has a nozzle (3) for generating an irrigation jet (J) coaxial with said first longitudinal axis (X1);
a tubular body (5) located below said support structure (2);
a circular baffle plate (6) facing said nozzle (3) and rotatably mounted in said tubular body (5) to rotate about a second longitudinal axis (X2),
wherein said liquid-emitting device (1) is a nutating device in which said circular baffle (6) is rotatable about said second longitudinal axis (X2) and has a precessional motion about said first longitudinal axis (X1), and
wherein said first longitudinal axis (X1) and said nozzle (3) are stationary relative to said support structure (2), said second longitudinal axis (X2) being free to rotate about said first longitudinal axis (X1) with said precessional motion;
a guide (12) designed to be removably coupled to said tubular body (5) to interact with said baffle plate (6) and prevent said precessional motion about said first longitudinal axis (X1) while allowing a rotational motion about said second longitudinal axis (X2); and
a diverting member (13) removably placed downstream of said nozzle (3) to direct the irrigation jet (J) over a sector portion (14) of said baffle plate (6) and distribute the liquid over a sector area of a soil,
wherein said guide (12) comprises an annular element (21) having a predetermined inside diameter (D3), said annular element being configured to be placed in said tubular body (5), said baffle plate (6) having a first portion (8) with radial grooves (9) directed toward the irrigation jet (J) and a second portion (11) having a cylindrical shape with an outside diameter (D1) that is smaller than said inside diameter (D3) of said annular element (21), and
wherein said annular element (21) has a frustoconical inner surface (21″) with a circular rim (22) for slidingly contacting said second cylindrical portion (11) of said baffle plate (6), to reduce friction between contact surfaces.