US 12,005,775 B2
Valve assembly for a fuel tank
Christoph Reichardt, Buchdorf (DE); Werner Ruppert, Langenaltheim (DE); and Markus Stephan, Gnotzheim (DE)
Assigned to Alfmeier Präzision SE, Treuchtlingen (DE)
Filed by Alfmeier Präzision SE, Treuchtlingen (DE)
Filed on Dec. 6, 2022, as Appl. No. 18/075,715.
Claims priority of application No. 20 2021 106 663.6 (DE), filed on Dec. 7, 2021.
Prior Publication US 2023/0173912 A1, Jun. 8, 2023
Int. Cl. B60K 15/035 (2006.01); F16K 1/36 (2006.01); F16K 1/42 (2006.01); F16K 24/04 (2006.01); F16K 27/02 (2006.01); F16K 31/56 (2006.01)
CPC B60K 15/03519 (2013.01) [F16K 1/36 (2013.01); F16K 1/42 (2013.01); F16K 24/04 (2013.01); F16K 27/02 (2013.01); F16K 31/566 (2013.01); F16K 2200/302 (2021.08); F16K 2200/3053 (2021.08); Y10T 137/86324 (2015.04)] 18 Claims
OG exemplary drawing
 
1. A valve device for a fuel tank of a motor vehicle, comprising: a housing having a tank connection for connecting the valve device to a vent line going to or coming from the fuel tank and a filter connection for connecting the valve device to a vent line going to or coming from an activated charcoal filter, wherein the tank connection and the filter connection are fluidically connected to one another inside the housing through a vent duct; a valve arranged inside the housing for opening and at least partially closing the vent duct, wherein the valve has a valve element movably mounted inside the housing, along a longitudinal axis of the housing, between an opening position and a closed position; an actuating element accessible from outside the valve housing, movably mounted inside the housing along the longitudinal axis and motion-coupled with the valve element in such a way that a movement of the actuating element in a closing direction moves the valve element in closing direction; and a valve element return element, configured to move the valve element in an opening direction; wherein the valve element return element is arranged outside the vent duct between the valve element and the housing.