US 11,885,285 B2
Fuel vapor switch and ventilation valve for an internal combustion engine
Juri Wagner, Titz (DE); and Christoph Mondorf, Neuss (DE)
Assigned to PIERBURG GMBH, Neuss (DE)
Appl. No. 17/923,605
Filed by PIERBURG GMBH, Neuss (DE)
PCT Filed May 8, 2020, PCT No. PCT/EP2020/062932
§ 371(c)(1), (2) Date Nov. 7, 2022,
PCT Pub. No. WO2021/223889, PCT Pub. Date Nov. 11, 2021.
Prior Publication US 2023/0193858 A1, Jun. 22, 2023
Int. Cl. F02M 25/00 (2006.01); F02M 25/08 (2006.01); F16K 1/44 (2006.01); F16K 1/52 (2006.01); F16K 17/196 (2006.01); F16K 31/06 (2006.01)
CPC F02M 25/0836 (2013.01) [F16K 1/44 (2013.01); F16K 1/523 (2013.01); F16K 17/196 (2013.01); F16K 31/06 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A fuel vapor switching and venting valve for an internal combustion engine, the fuel vapor switching and venting valve comprising:
an electromagnet comprising an armature;
a first connection;
a second connection;
a first valve seat which is arranged between the first connection and the second connection;
a spring;
a flow limiting element;
a second valve seat which is arranged on the flow limiting element; and
a valve body coupled to the armature of the electromagnet, the valve body comprising a first contact surface with which the valve body can be lowered onto and lifted off of the first valve seat, and a second contact surface with which the valve body can be moved against the second valve seat,
wherein,
the second valve seat is configured to be axially displaceable, and
the spring is configured to load the second valve seat in a direction of the valve body.