Dichtungssystem mit Ringförmigem Dichtungselement und Spreizring für Bidirektionale Abdichtung, Fluidventil mit Dichtungssystem und Dichtungsverfahren

Details

Veröffentlichungs-Nr.

EP4227559

Aktenzeichen

EP22186497

Anmeldetag

22. Juli 2022

Veröffentlichung

16. August 2023

Rechtsraum

EP

IPC

F16J15/16F16J15/3212F16J15/3236F16K41/04F25B41/31

Abstract

The present invention relates to a sealing system (1; 100) for an annular seal mount (40). It comprises an annular seal member (10) with two sealing lip portions (12, 14) connected by a connecting portion (11) and a spring-elastic spreader (17) secured within an annular groove of the seal member (10) and forms a channel (18) opening towards a first side in an axial direction (L). For providing bi-directional sealing in an inexpensive but reliable manner within small installation space, the sealing system (1; 100) has an expanding ring (20; 120) for abutting on the seal mount (40) at the first side. An engagement portion (23, 24; 122) of the expanding ring (20; 120) protrudes in the axial direction (L) towards a second side and is received within the channel (18). When the seal member (10) is pressed along the axial direction (L) against the expanding ring (23, 24; 122), the latter directly abuts the spreader (17) at a first radial position (R1; R1') and a second radial position (R2; R2'), thereby inducing spreading force for forcing the end sections of the sealing lip portions (12, 14) apart from each other via the spreader (17). The present invention further relates to a fluid valve (50) with a sealing system (1; 100) and to a sealing method.

Anmelder

Firma

Danfoss A/S

Land

🇩🇰 Dänemark

Fachgebiete