公开(公告)号：US20170146134A1

公开(公告)日：2017-05-25

申请号：US15323534

申请日：2015-06-30

Applicant: LUXEMBOURG PATENT COMPANY S.A.

Inventor： Johan BROECHLER ,  Pascal CHIR ,  Jean-Claude SCHMITZ

IPC: F16K1/44 ,  F25J1/00 ,  F25J1/02 ,  F16K41/04

CPC classification number: F16K1/443 ,  F16K1/36 ,  F16K41/043 ,  F25J1/0022 ,  F25J1/0257 ,  F25J2240/40

Abstract: The invention is directed to a valve for gas under pressure, for example at temperatures below −100° C., comprising a body with a gas inlet, a gas outlet and a passage connecting the inlet with the outlet; a shut-off device for closing the gas passage; a spindle designed for operating the shut-off device; and at least one gasket between the spindle and the body. The valve further comprises at least one cavity around the spindle for accumulating particles separated from the at least one gasket while operating the spindle and the shut-off device, for example at temperatures below −100° C.

公开(公告)号：US20170328490A1

公开(公告)日：2017-11-16

申请号：US15535674

申请日：2015-12-02

Applicant: Luxembourg Patent Company S.A.

Inventor： Paul MUZZO ,  Jean-Claude SCHMITZ

IPC: F16K31/122 ,  F15B11/072 ,  F16K1/30 ,  F16K47/00

Abstract: The invention is directed to a valve actuating device comprising a body with a bore and a bottom, an actuating element sealingly housed in the bore of the body and forming a first chamber with the body, a piston sealingly extending through a bore in the actuating element, the piston and bore delimiting a second actuating chamber, a passage for an auxiliary fluid between the first and second chambers so that a movement of the piston in the bore of the actuating member can increase the pressure in the first chamber and move the actuating element. The fluid passage comprises a restriction and a check-valve, both arranged in parallel, so as to limit the flow of the auxiliary fluid from the second chamber to the first chamber.