The invention relates to a valve device, in particular a wiper liquid valve, comprising a housing (2) having a supply connection (3), a discharge connection (4) and a media channel (5) connecting the supply connection to the discharge connection, and comprising a moveable valve element (12), which is pressed against a valve seat (19) formed in the housing by a first spring element (27) in order to close the media channel, and which is pressed away from the valve seat by a second spring element (15) in order to open the media channel (5), wherein the first spring element is produced from a thermally activatable material and has a first spring force in a deactivated state which is smaller than that of the second spring element, and a second spring force in an activated state which is greater than that of the second spring element in such a way that the valve element (12) is moved to closed the media channel (5), wherein at least sections of the first spring element are retained in a hollow cylindrical housing protrusion (6) protruding outwards from the housing. In addition, the housing protrusion has a heat-conducting pin (25) on the free end side facing away from the housing, which protrudes into the housing protrusion in the direction of the valve element and thereby forms an annular receiving pocket for a longitudinal section of the first spring element in the housing protrusion.
VENTILEINRICHTUNG, INSBESONDERE WISCHWASSERVENTIL
VALVE DEVICE, IN PARTICULAR A WIPER LIQUID VALVE
DISPOSITIF DE SOUPAPE, EN PARTICULIER SOUPAPE DE LIQUIDE D'ESSUIE-GLACE
2024-04-17
Patent
Electronic Resource
German