EP 3411769 A1 20181212 - GAS PRESSURE REDUCER WITH ADJUSTABLE SEAT
Title (en)
GAS PRESSURE REDUCER WITH ADJUSTABLE SEAT
Title (de)
GASDRUCKMINDERER MIT VERSTELLBAREM SITZ
Title (fr)
RÉDUCTEUR DE PRESSION DE GAZ À ASSISE VARIABLE
Publication
Application
Priority
- LU 92967 A 20160202
- EP 2017051942 W 20170130
Abstract (en)
[origin: WO2017134014A1] The invention is directed to a gas pressure reducer (2) comprising a body (10) with an inlet (4) intended to be in flow communication with a high pressure gas source; an outlet (6) intended to deliver the gas at a predetermined low pressure; a passage (8) through the body (10) in flow communication with the inlet (4) and with the outlet (6). A resilient element (24) engages with a pressure reducing piston (18) with a through flow path (22) formed by a needle (20). The needle (20) cooperates with a movable seat (16). The outlet pressure acts on the piston (18) in opposite direction than the spring (24) so as to urge the path (22) against the seat (16) in order to reduce the gas flow through the path (22). Pressure setting means comprise an electric actuator (32), such as a stepper motor, which moves the seat (16) along the moving direction of the piston (18) in order to set the predetermined outlet pressure.
IPC 8 full level
G05D 16/10 (2006.01); G05D 16/20 (2006.01)
CPC (source: EP US)
G05D 16/103 (2013.01 - EP US); G05D 16/2086 (2013.01 - EP)
Citation (examination)
US 4791954 A 19881220 - HASEGAWA YOSHIHIKO [JP]
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2017134014 A1 20170810; EP 3411769 A1 20181212; LU 92967 A1 20170807; LU 92967 B1 20170925
DOCDB simple family (application)
EP 2017051942 W 20170130; EP 17701730 A 20170130; LU 92967 A 20160202