US 12,410,955 B2
Proportional valve assembly for refrigerants
Dieter Maisch, Kohlberg (DE); and Hartmut Weber, Altdorf (DE)
Assigned to ECO Holding 1 GmbH, (DE)
Appl. No. 18/265,301
Filed by ECO Holding 1 GmbH, Marktheidenfeld (DE)
PCT Filed Oct. 13, 2021, PCT No. PCT/EP2021/078338
§ 371(c)(1), (2) Date Jun. 5, 2023,
PCT Pub. No. WO2022/128203, PCT Pub. Date Jun. 23, 2022.
Claims priority of application No. 102020134259.4 (DE), filed on Dec. 18, 2020.
Prior Publication US 2024/0035721 A1, Feb. 1, 2024
Int. Cl. F25B 41/20 (2021.01); F16K 11/044 (2006.01); F16K 11/056 (2006.01); F16K 31/04 (2006.01)
CPC F25B 41/20 (2021.01) [F16K 11/044 (2013.01); F16K 11/056 (2013.01); F16K 31/047 (2013.01); Y10T 137/86622 (2015.04)] 10 Claims
OG exemplary drawing
 
1. A proportional valve arrangement for refrigerant, comprising:
a valve housing comprising a valve body chamber, and
a valve body arranged within the valve body chamber, the valve body configured to be transferable between a first position and a second position,
wherein the valve housing comprises a first sealing seat and a second sealing seat, and the valve body is arranged to be transferable between the first sealing seat and the second sealing seat,
wherein the valve body comprises a first guide section, a second guide section, and a spherical section arranged between the first guide section and the second guide section, the first guide section and the second guide section configured to guide the valve body in the valve housing and the spherical section arranged to be transferable between abutment with the first sealing seat and abutment with the second sealing seat, and
wherein no return spring acting on the second guide section for closing the proportional valve arrangement is provided in the proportional valve arrangement,
wherein the valve housing comprises an inflow port, a first outflow port and a second outflow port, and
wherein the proportional valve arrangement comprises a pressure bypass connecting the second outlet port to the valve body chamber.