US 12,366,294 B2
Piston for a valve, electromagnetic valve and fuel cell system
Dietmar Schulze, Muenzenberg (DE); and Christian Jung, Roden (DE)
Assigned to ECO Holding 1 GmbH, Marktheidenfeld (DE)
Filed by ECO Holding 1 GmbH, Marktheidenfeld (DE)
Filed on May 18, 2023, as Appl. No. 18/199,300.
Claims priority of application No. 102022114019.9 (DE), filed on Jun. 2, 2022.
Prior Publication US 2024/0384798 A1, Nov. 21, 2024
Int. Cl. F16K 1/36 (2006.01); F16K 1/46 (2006.01); F16K 31/06 (2006.01)
CPC F16K 1/36 (2013.01) [F16K 1/46 (2013.01); F16K 31/06 (2013.01)] 7 Claims
OG exemplary drawing
 
1. An electromagnetic valve configured to control a gaseous medium, the electromagnetic valve comprising:
an armature; and
a piston operatively connected with the armature, the piston including:
a piston head configured as a closure element and including a seal configured to seal the piston at a valve seat,
wherein the seal is arranged at the piston head by a retainer,
wherein the seal is arranged in a recess of the piston head and includes a circumferential retaining portion at a face of the seal oriented away from the piston head,
wherein the seal includes a center portion at an axial face oriented away from the piston head and arranged within the circumferential retaining portion,
wherein the axial face is configured as a closed substantially circular disk,
wherein the center sealing portion extends axially beyond the circumferential retaining portion, and the piston head, and
wherein the piston head is applicable to the valve seat for closing one or plural pass-through openings of the electromagnetic valve.