Fluid Dispensing Motorised Valve

Abstract: The invention relates to a fluid-dispensing motorised valve (1) comprising a housing (10) that includes a body (11) made of plastics material defining an internal volume (V11) connected to the outside of the housing by an inlet and outlets (10.2, 10.3), at least one of the outlets comprising an end piece (12, 13). An electric pump (30), a suction side of which is connected to the inlet, is arranged in a first sub-volume (V11.1) of the internal volume. A delivery side (33) of the pump opens into a passage (V11.3) of the internal volume, connecting the first sub-volume to a second sub-volume (V11.2). The body defines an opening (011) connecting the second sub-volume to the outside of the body. A plug (16), securely assembled to the body, sealingly closes the opening. A shutter (40) is arranged in the second sub-volume so as to be movable by an electromechanical actuating device to control the opening and closing of the outlets. A seat device (22, 23) carried by the housing (10) is inserted along a seat axis between each end piece and the shutter so as to allow the fluid to flow from the internal volume to the end piece when the shutter controls the opening of the associated outlet, while preventing the fluid from reaching the end piece when the shutter controls the closing of this outlet. Each seat device includes a bearing member, movable along the seat axis and cooperating by sliding sealing contact with the shutter, and an elastic member bearing against the end piece so as to keep the bearing member applied axially against the shutter. Each end piece is assembled to the body in a secure and sealed manner by welding between the body and a plastics portion of the end piece, forming a plastics weld that can withstand the stresses applied by the elastic member.

Patent Information

Applicants

Inventors

Specification

Documents

Application Documents