US 11,851,860 B2
Jet regulator
Manuel Keel, Wildegg (CH); Reto Berger, Neuenhof (CH); and Andreas Rueegg, Hildisrieden (CH)
Assigned to KWC AG, Unterkulm (CH)
Filed by KWC AG, Hergiswil (CH)
Filed on Jun. 29, 2020, as Appl. No. 16/914,676.
Claims priority of application No. 102019117381.7 (DE), filed on Jun. 27, 2019.
Prior Publication US 2020/0407955 A1, Dec. 31, 2020
Int. Cl. E03C 1/084 (2006.01); E03C 1/04 (2006.01); E03C 1/08 (2006.01)
CPC E03C 1/084 (2013.01) [E03C 1/0411 (2013.01); E03C 1/08 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A jet regulator for a fitting for dispensing at least one of boiling water or CO2-containing water, the jet regulator comprising:
a substantially cylindrical housing having an inlet opening, an outlet opening and a housing inner wall,
a swirl creating portion, arranged in a region of the inlet opening, having a substantially helically extending flow guide configured for rotationally accelerating a stream of water flowing through,
an expansion zone, following the swirl creating portion, configured such that the rotationally accelerated stream of water flows due to action of centrifugal force in a region of the housing inner wall,
a guide portion configured to decelerate the rotational movement of the stream of water and to guide the stream of water in a longitudinal direction, and
a laminar jet regulator portion arranged in a region of the outlet opening, downstream of the guide portion, said laminar jet regulator portion having a plurality of outer flow channels configured to dispense the stream of water as a laminar jet, and said laminar jet regulator portion further having a centrally extending channel configured to dispense pressurized water vapor or steam;
wherein the guide portion has a plurality of longitudinal ribs that are arranged on the housing inner wall and widen in a radial extent in a direction of flow.