EP 1409275 A1 20040421 - CONTROLLED PNEUMATIC VALVE
Title (en)
CONTROLLED PNEUMATIC VALVE
Title (de)
VORGESTEUERTES PNEUMATISCHES VENTIL
Title (fr)
DEMANDE DE BREVET D'INVENTION
Publication
Application
Priority
- FR 0200596 W 20020215
- FR 0102166 A 20010216
Abstract (en)
[origin: FR2821140A1] The invention relates to a controlled pneumatic valve intended for the remote inflating and deflating of an enclosed space (2) comprising a diaphragm (18) which is disposed between a semi-body (15) and a grooved ring (16). The diaphragm and the semi-body define a control chamber (19) while said diaphragm and the grooved ring define an exhaust chamber (20). Said exhaust chamber communicates with (i) a bore (2a) that opens into the enclosed space (2) and (ii) the control chamber (19) by means of a non-return valve (32) which is housed in a body (22). The control chamber (19) is connected to a pressure-vacuum circuit (3) by means of a tube (26). Said servo valve (32) pushes the diaphragm (18) in order to close the bore. The valve comprises a mechanical means (28) which is controlled by the diaphragm and which is used to open the non-return valve (32) in conjunction with the force of the pressure in order to produce a low-pressure opening in said non-return valve. Said means comprises a bridge (29) that is fixed to the diaphragm (18) and a pin (30) which is disposed opposite the non-return valve. The invention is suitable for low-pressure tyre control.
IPC 1-7
IPC 8 full level
B60C 23/00 (2006.01); F16K 15/20 (2006.01); F16K 31/365 (2006.01)
CPC (source: EP US)
B60C 23/00354 (2020.05 - EP US); B60C 23/00372 (2020.05 - EP US); F16K 15/20 (2013.01 - EP US); F16K 31/365 (2013.01 - EP US); Y10T 137/3584 (2015.04 - EP US)
Citation (search report)
See references of WO 02066268A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
FR 2821140 A1 20020823; FR 2821140 B1 20030523; EP 1409275 A1 20040421; US 2004020534 A1 20040205; WO 02066268 A1 20020829
DOCDB simple family (application)
FR 0102166 A 20010216; EP 02704850 A 20020215; FR 0200596 W 20020215; US 46642103 A 20030716