Abstract: An electric valve device including a hollow body with an inlet and an outlet for a flow of fluid, in particular a liquid, between which, inside said body, there is defined a chamber in which there is provided a valve seat intended to cooperate with an associated closing member for controlling communication between the inlet and the outlet; and a tubular guiding formation which is nominally coaxial with the valve seat and inside which there is mounted, axially displaceably to and from the seat, a core which carries the closing member and the position of which with respect to the seat can be electromagnetically controlled by means of a winding or solenoid arranged around said tubular formation. The hollow body and the tubular guiding formation are made as a single piece of moulded plastic.

Abstract: A device (10; 110; 210; 310) includes a support structure (12), on which there are mounted a plug (16), which is adapted to assume a plurality of operating positions including an opening position and a closing position, in which the plug is adapted to at least partially free and respectively obstruct a passage (14), which is meant for a fluid flow. A mechanism (18) is suited to move and hold the plug (16) between said operating positions. An opening actuator (20) and a closing actuator (22) are suited to separately act upon the mechanism (18), so that the mechanism (18) moves and holds the plug (16) between said operating positions, namely towards said opening position and towards said closing position, respectively, due to electric current supplied to the opening actuator (20) and to the closing actuator respectively.

Abstract: The pilot valve (14) comprises a body (7, 7a) in which there is defined a control chamber (11) which is intended to communicate with the inlet (3) of the hydraulic valve (1) and which, through a restricted outlet passage (12) associated with a valve seat (13), is able to be selectively brought into communication with the outlet (4) of the hydraulic valve (1); at least one core (23) mounted movably within a portion (7a) of said body (7, 7a) and inside the control chamber (11) and carrying a closing member (24) cooperating with the valve seat (13); and an actuator (16-21) including a solenoid or coil (15) of copper wire, mounted around said portion (7a) of the body (7, 7a), for selectively controlling the position of the core (23) and the closing member (24) with respect to the valve seat (13) and the communication between the control chamber (11) and the restricted outlet passage (12); and wherein the ratio of the diameter (d) of the restricted outlet passage (12) to the weight (m) of the solenoid (16) is betw

Abstract: A device (10; 110; 210; 310) includes a support structure (12), on which there are mounted a plug (16), which is adapted to assume a plurality of operating positions including an opening position and a closing position, in which the plug is adapted to at least partially free and respectively obstruct a passage (14), which is meant for a fluid flow. A mechanism (18) is suited to move and hold the plug (16) between said operating positions. An opening actuator (20) and a closing actuator (22) are suited to separately act upon the mechanism (18), so that the mechanism (18) moves and holds the plug (16) between said operating positions, namely towards said opening position and towards said closing position, respectively, due to electric current supplied to the opening actuator (20) and to the closing actuator respectively.

Abstract: An electric valve device including a body having an inlet and an outlet, and a main valve seat through which the fluid can flow from the inlet to the outlet, a main shutter movable with respect to the valve seat; a control chamber; first and second communication passages between the inlet and the control chamber and between the control chamber and the outlet, respectively; a fixed structure arranged in the control chamber and in which there is defined an auxiliary valve seat, which is coaxial with the main valve seat (8) and which communicates with said second passage; and a solenoid control valve including a control solenoid coaxial with the valve seats for controlling an auxiliary shutter mounted movably in the control chamber and cooperating with the auxiliary valve seat for controlling the communication between the control chamber and the second passage.

Abstract: A solenoid valve device that includes a body (2, 7) with an inlet (3) and an outlet (4) for the fluid, and with a main valve seat (6) through which the fluid can flow from the inlet (3) to the outlet (4); a main plug (8, 9); a control chamber (11) partially delimited by the main plug (8); a first passage (8d, 9b, 9c) for communication between the inlet (3) and the control chamber (11); a second passage (12, 13) for communicating the control chamber with the outlet (4); and a control solenoid valve (14) including a control solenoid (15) which controls a movable unit (17) including a first core (18) which can interact as a movable plug with the second passage (12, 13). Activation of solenoid (15) causes attraction of first core (18) towards a second core (21) and the opening of the second passage (12, 13).

Abstract: The pilot valve (14) comprises a body (7, 7a) in which there is defined a control chamber (11) which is intended to communicate with the inlet (3) of the hydraulic valve (1) and which, through a restricted outlet passage (12) associated with a valve seat (13), is able to be selectively brought into communication with the outlet (4) of the hydraulic valve (1); at least one core (23) mounted movably within a portion (7a) of said body (7, 7a) and inside the control chamber (11) and carrying a closing member (24) cooperating with the valve seat (13); and an actuator (16-21) including a solenoid or coil (15) of copper wire, mounted around said portion (7a) of the body (7, 7a), for selectively controlling the position of the core (23) and the closing member (24) with respect to the valve seat (13) and the communication between the control chamber (11) and the restricted outlet passage (12); and wherein the ratio of the diameter (d) of the restricted outlet passage (12) to the weight (m) of the solenoid (16) is betw

Abstract: An electric valve device including a hollow body with an inlet and an outlet for a flow of fluid, in particular a liquid, between which, inside said body, there is defined a chamber in which there is provided a valve seat intended to cooperate with an associated closing member for controlling communication between the inlet and the outlet; and a tubular guiding formation which is nominally coaxial with the valve seat and inside which there is mounted, axially displaceably to and from the seat, a core which carries the closing member and the position of which with respect to the seat can be electromagnetically controlled by means of a winding or solenoid arranged around said tubular formation. The hollow body and the tubular guiding formation are made as a single piece of moulded plastic.

Abstract: The device (1) comprises: a body (2; 3, 4) having an inlet (5) and an outlet (6) for the fluid, and a main valve seat (8) through which the fluid can flow from the inlet (5) to the outlet (6), a main shutter (12) movable with respect to the valve seat (8); a control chamber (13) delimited in part by the main shutter (12); at least one first and one second communication passage (17; 15, 16) between the inlet (5) and the control chamber (13) and between the control chamber (13) and the outlet (6), respectively; a fixed structure (10) which is arranged in the control chamber (13) and in which there is defined an auxiliary valve seat (14), which is coaxial with the main valve seat (8) and which communicates with said second passage (15, 16); and a solenoid control valve (20) including a control solenoid (21) arranged coaxially with the valve seats (8, 14), for controlling an auxiliary shutter (27) which is mounted movably in the control chamber (13) and which is intended to cooperate with the auxiliary valve s

Abstract: The device (1) comprises: a body (2, 7) with an inlet (3) and an outlet (4) for the fluid, and with a main valve seat (6) through which the fluid can flow from the inlet (3) to the outlet (4), a main plug (8, 9) associated with this main seat (6), a control chamber (11) partially delimited by the main plug (8); a first passage (8d, 9b, 9c) for communication between the inlet (3) and the control chamber (11); a second passage (12, 13) for putting the control chamber (11) into communication with the outlet (4); and a control solenoid valve (14) including a control solenoid (15) which controls a movable unit (17) comprising a first core (18) which can interact as a movable plug with the second passage (12, 13). The movable unit (17) comprises a second movable ferromagnetic core (21), adjacent to the first core (18). A spacer element (19) extends between the main plug (8, 9) and the second core (21). One or more springs (20, 22) push the second core (21) towards the main plug (8, 9).

Abstract: A valve assembly including a valve body with inlet and outlet ports, between which there is a main valve seat cooperating with an associated main obturator. The obturator defines together with the valve body, a variable volume control chamber in permanent communication with the inlet port through a first passage having a reduced cross-section. The control chamber is adapted to be brought into communication with the outlet port through a second passage having a larger cross-section. Also provided is a solenoid pilot valve including a control coil and a movable core associated with an auxiliary obturator adapted to open and close the second passage. Between the second passage and the outlet port, is defined a second variable volume control chamber, which is delimited in part by the auxiliary obturator, and the movable core associated with the auxiliary obturator is mounted outside of the flow-path of the fluid.

Abstract: The washing machine comprises a support structure in which is suspended a washing chamber in which a laundry drum is mounted to be rotatable, and in which a detector is provided, capable of providing electrical signals indicating the level of the washing liquid in the chamber. The detector comprises an inductive transducer including a coil and an associated core, the relative position of which is variable according to the level of the washing liquid such that the inductance of the coil varies accordingly. The inductive transducer is coupled to the laundry drum in such a way that the inductance of the coil is variable also according to the weight of the load contained in the drum.

Abstract: Locking device for a moving element, particularly for a drum of a top-loading washing machine. The locking device (20) for retaining a moving element (5) in a predetermined position, particularly a drum (5) of a top-loading washing machine (1) in a loading/unloading position of the drum (5), comprises a casing (21) in which is mounted a catch (22) which is slidable in a guided way between an outward position and a retracted position, in which it can, respectively, lock and release the moving element (5), and which is associated with first opposing resilient means (27) tending to move it to the outward position. The casing (21) also includes locking members (32, 33) which in an operating condition can move the catch (22) to the retracted position and retain it there, and release members (34) which in an operating condition can make the locking members (33) move to a release condition in which they allow the catch (22) to return to the outward position.

Abstract: The washing machine comprises a support structure in which is suspended a washing chamber in which a laundry drum is mounted to be rotatable, and in which a detector is provided, capable of providing electrical signals indicating the level of the washing liquid in the chamber. The detector comprises an inductive transducer including a coil and an associated core, the relative position of which is variable according to the level of the washing liquid such that the inductance of the coil varies accordingly. The inductive transducer is coupled to the laundry drum in such a way that the inductance of the coil is variable also according to the weight of the load contained in the drum.