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1. (WO2018041819) COMPACT AND PRESSURE COMPENSATED GAS PRESSURE REGULATOR

Pub. No.:    WO/2018/041819    International Application No.:    PCT/EP2017/071638
Publication Date: Fri Mar 09 00:59:59 CET 2018 International Filing Date: Wed Aug 30 01:59:59 CEST 2017
IPC: G05D 16/10
Applicants: LUXEMBOURG PATENT COMPANY S.A.
Inventors: SELEN, Stephan
SCHMITZ, Philippe
Title: COMPACT AND PRESSURE COMPENSATED GAS PRESSURE REGULATOR
Abstract:
The invention is directed to a gas pressure regulator (2) comprising a body (4) with a gas inlet (6), a gas outlet (8) and a passage (20) fluidly interconnecting said inlet with said outlet; a piston (22) with a main portion (22.1) and a tubular portion (22.2), said tubular portion being sealingly and slidably housed in the body (4) and forming a portion (20.1) of the passage in said body; and a valve seat (24) in the body (4), said seat being configured to cooperate with a regulating edge (26) of the tubular portion (22.2) of the piston (22) for varying a flow section of the passage depending on the gas pressure in a regulating chamber (30) delimited by the piston (22) and downstream of said seat (24). The tubular portion (22.2) traverses the main portion (22.1) of the piston (22) and the regulating edge (26) of said tubular portion (22.2) is on a downstream side of said portion.