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1. (WO2018163039) A LIQUID DISPENSING DEVICE, PARTICULARLY FOR DISPENSING WASHING AGENTS IN A WASHING MACHINE

Pub. No.:    WO/2018/163039    International Application No.:    PCT/IB2018/051382
Publication Date: Fri Sep 14 01:59:59 CEST 2018 International Filing Date: Tue Mar 06 00:59:59 CET 2018
IPC: D06F 39/02
A47L 15/44
Applicants: ELBI INTERNATIONAL S.P.A.
Inventors: MARONE, Giuseppe
Title: A LIQUID DISPENSING DEVICE, PARTICULARLY FOR DISPENSING WASHING AGENTS IN A WASHING MACHINE
Abstract:
Dispensing device for a liquid, comprising a reservoir (3) inside which a holding chamber (3d) for a liquid is defined; a ram (16) movable inside the holding chamber (3d), wherein between the ram (16) and the seat (14d) a variable volume working chamber (14e) is defined, able to communicate with the holding chamber (3d); and a non-return valve (30), arranged at the outlet opening (12b) and downstream of the seat (14d). During the stroke of the ram (16) from a forward end-of-stroke position to a backward end-of-stroke position the liquid flows from the holding chamber (3d) to the working chamber (14e), and during the stroke of the ram (16) from the backward end-of-stroke position to the forward end-of- stroke position the liquid is dispensed out from the working chamber (14e) through an outlet opening (12b). The device further comprises an actuating group (21, 22, 23, 24) arranged outside of the holding chamber (3d) and capable of contactlessly controlling motion of the ram (16).