US 11,746,917 B2
Pressure regulator with outlet overpressure security
Paul Muzzo, Yutz (FR); Guillaume Massin, Heisdorf (LU); and Philippe Schmitz, Steinsel (LU)
Assigned to ROTAREX S.A., Lintgen (LU)
Appl. No. 17/802,608
Filed by Rotarex S.A., Lintgen (LU)
PCT Filed Feb. 23, 2021, PCT No. PCT/EP2021/054463
§ 371(c)(1), (2) Date Aug. 26, 2022,
PCT Pub. No. WO2021/170586, PCT Pub. Date Sep. 2, 2021.
Claims priority of application No. LU101653 (LU), filed on Feb. 26, 2020.
Prior Publication US 2023/0167915 A1, Jun. 1, 2023
Int. Cl. F16K 17/04 (2006.01); F16K 17/16 (2006.01); F17C 13/04 (2006.01); G05D 16/06 (2006.01); F23K 5/00 (2006.01)
CPC F16K 17/048 (2013.01) [F16K 17/16 (2013.01); F17C 13/04 (2013.01); G05D 16/0658 (2013.01); F17C 2205/0332 (2013.01); F17C 2205/0338 (2013.01); F23K 5/002 (2013.01); F23K 2900/05001 (2013.01); F23K 2900/05002 (2013.01); F23N 2235/24 (2020.01)] 15 Claims
OG exemplary drawing
 
1. A regulator for compressed gas, said regulator comprising:
a body with a gas inlet, a gas outlet and a gas passage fluidly interconnecting the gas inlet and gas outlet;
a pressure reducer with, in the gas passage, a shut-off device and a movable assembly operatively connected to the shut-off device and delimiting with the body a regulating chamber downstream of the shut-off device;
a pressure relief device in the gas passage downstream of the regulating chamber; and
a flow restriction in the gas passage upstream of the shut-off device, dimensioned for reducing the gas pressure at the gas outlet under a maximum pressure value when the pressure relief device is opened and the shut-off device is opened.