US 12,247,671 B2
Hydraulic valve
Georg Jemüller, Aschheim (DE); and Dominic Nießlein, Aschheim (DE)
Assigned to HAWE Hydraulik SE, Aschheim (DE)
Filed by HAWE Hydraulik SE, Aschheim (DE)
Filed on Jun. 5, 2023, as Appl. No. 18/328,933.
Claims priority of application No. 10 2022 207 208.1 (DE), filed on Jul. 14, 2022.
Prior Publication US 2024/0019037 A1, Jan. 18, 2024
Int. Cl. F16K 27/02 (2006.01); F16K 1/12 (2006.01); F16K 1/38 (2006.01); F16K 11/10 (2006.01); F16K 15/04 (2006.01); F16K 31/04 (2006.01); F16K 31/122 (2006.01)
CPC F16K 11/10 (2013.01) [F16K 1/126 (2013.01); F16K 1/385 (2013.01); F16K 15/04 (2013.01); F16K 31/122 (2013.01); F16K 27/0209 (2013.01); F16K 27/0254 (2013.01); F16K 27/0263 (2013.01); F16K 2200/201 (2021.08); F16K 2200/202 (2021.08); F16K 2200/3051 (2021.08); F16K 2200/501 (2021.08)] 14 Claims
OG exemplary drawing
 
1. A hydraulic valve, comprising:
a valve housing;
a valve cone;
a spring housing;
a check valve;
a first hydraulic connection; and
a second hydraulic connection,
wherein the valve housing comprises a valve seat,
wherein the valve cone is movably disposed in the valve housing between a closed position and an open position,
wherein the valve cone abuts the valve seat in the closed position and blocks a first flow path between the first hydraulic connection and the second hydraulic connection,
wherein the valve cone is lifted off the valve seat in the open position and opens the first flow path from the first hydraulic connection to the second hydraulic connection,
wherein a spring element is disposed in the spring housing,
wherein the spring element biases the valve cone into the closed position, and
wherein the check valve is disposed in the valve cone and, when pressure is applied to the second hydraulic connection, opens a second flow path from the second hydraulic connection to the first hydraulic connection,
wherein the valve cone has a fluid guide passing through the valve cone upstream of the check valve as viewed in the direction of flow from the second hydraulic connection to the first hydraulic connection, the fluid guide being part of the first and/or the second flow path.