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1. (WO2018162184) VALVE ASSEMBLY FOR A SOLENOID VALVE, AND CORRESPONDING SOLENOID VALVE

Pub. No.:    WO/2018/162184    International Application No.:    PCT/EP2018/053538
Publication Date: Fri Sep 14 01:59:59 CEST 2018 International Filing Date: Wed Feb 14 00:59:59 CET 2018
IPC: F16K 1/38
F16K 1/46
F16K 27/02
F16K 31/06
Applicants: ROBERT BOSCH GMBH
Inventors: KURZ, Edgar
SCHULLER, Wolfgang
Title: VALVE ASSEMBLY FOR A SOLENOID VALVE, AND CORRESPONDING SOLENOID VALVE
Abstract:
The invention relates to a valve assembly (20A, 20B) for a solenoid valve, having a movable closing body (24) and a valve seat arranged on the edge of a through-hole (12), wherein the closing body (24) has an elastic sealing element (30A, 30B) which allows a fluid flow through the through-hole (12) when lifted from the valve seat (26) and blocks a fluid flow through the through-hole (12) when bearing sealingly against the valve seat (26). The sealing element (30A, 30B) comprises a cylindrical main body (32A, 32B) having an elastic, circumferential sealing lip (34A, 34B), wherein a V-shaped depression (36A, 36B) is formed between the main body (32A, 32B) and the sealing lip (34A, 34B), said depression being open towards the fluid flow. The sealing element (30A, 30B) acts as a spring element which is prestressed axially by a reduction in an effective opening of the V-shaped depression (36A, 36B) during a closing process and is pressed against the valve seat (26) and in the process brakes the closing body (24). During an opening process, the sealing element (30A, 30B) is axially relaxed and lifted out of the valve seat (26).