Patent ID: 11879555
Assignee: BONTAZ CENTRE
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 21:
22. A solenoid valve type device, with a slide mechanism reactive to pressure, the device comprising:
a body comprising at least 3 liquid flow channels;
a slide that can be displaced in said body by a fluid under pressure, between a first position in which there is fluid communication between a first channel and a second channel among said 3 flow channels, and a second position in which there is fluid communication between said second channel and a 3rd channel;
an electromagnetic actuator and a mobile core, that can be displaced inside the device using said electromagnetic actuator, between an inactive position and an active position, to select an activation pressure threshold for a displacement of said slide, among at least one first pressure threshold (Ph) and at least one second pressure threshold (Pb, in which Pb<Ph);
a first spring, that tends to hold the slide in the first position, a variable longitudinal bearing force of the first spring on the slide regulating said at least one second activation pressure threshold (Pb) of said slide, the at least one first activation pressure threshold (Ph) being regulated by an element in adjustable bearing against said mobile core.