Inflow nozzle
An inflow nozzle for an intake opening of a device for downward extraction of cooking vapours has a supporting structure and a plurality of pin-like elements arranged on the supporting structure.
1. An inflow nozzle for an intake opening of a device for downward extraction of cooking vapours, comprising:
a supporting structure; and
a plurality of pins arranged on the supporting structure,
wherein the supporting structure is formed as a grid structure, and the grid structure is formed from unitary cells with identical outer periphery, the grid structure comprising a checkerboard pattern of adjacent cells with transverse struts and cells without transverse struts; and
wherein the transverse struts of any two cells that have transverse struts and share a corner are oriented in different directions.
2. The inflow nozzle according to claim 1 , wherein each of the plurality of pins have a free end.
3. The inflow nozzle according to claim 1 , wherein each of the plurality of pins have a free end, and the free ends of two closest neighbouring pins are each configured differently.
4. The inflow nozzle according to claim 1 , wherein the surface density of the plurality of pins is at least 0.1 cm −2 .
5. The inflow nozzle according to claim 1 , further comprising a free flow cross-section which is at least as large as 25% of a total cross-section of the inflow nozzle.
6. The inflow nozzle according to claim 1 , wherein:
the plurality of the pins comprises one or more of: a grease filter; an odour filter and a moisture filter, or
the plurality of the pins is connected to one or more of a grease filter, an odour filter and a moisture filter.
7. The inflow nozzle according to claim 1 , wherein the supporting structure has a clear viewing angle range for the inflow nozzle that is at most 90°.
8. A hob system comprising:
a hob with:
at least one hotplate; and
at least one opening for downward extraction of cooking vapours; and
an inflow nozzle inserted in the at least one opening,
the inflow nozzle comprising:
a supporting structure; and
a plurality of pins arranged on the supporting structure,
wherein the supporting structure is formed as a grid structure, and the grid structure is formed from unitary cells with identical outer periphery, the grid structure comprising a checkerboard pattern of adjacent cells with transverse struts and cells without transverse struts.
9. The inflow nozzle according to claim 1 , wherein of any two cells that are adjacent and share a side, one has a free inner cross-section and the other has a transverse strut traversing the inner cross-section.
10. The hob system according to claim 8 , wherein of any two cells that are adjacent and share a side, one has a free inner cross-section and the other has a transverse strut traversing the inner cross-section.