Abstract: The hydraulic apparatus includes: at least a pumping device for pumping a fluid at a first pressure; at least a user device of the fluid at the first pressure; at least an emergency supply device connectable to the user device activating a connection; at least an activation device of the connection that can be operated at a second pressure of the fluid different from the first pressure and interposed between the user device and the emergency supply device, the activation device having an emergency configuration wherein both the pumping device and the emergency supply device are connected to the user device.

Abstract: A hydraulic valve suitable for operating apparatus (500) of brakes of wheels of a vehicle includes body means (2) having first inlet means (21), second inlet means (22) that are connected to respective supply apparatus (23; 24) of pressurized fluid, first outlet means (25) and second outlet means (26); first distributing means and second distributing means (5) arranged to connect the first inlet means (21) to the first outlet means (25) and second inlet means (22) to the second outlet means (26) respectively, first thrust means (7) and second thrust means (8) arranged to operate the first distributing means (5) and second distributing means (6) respectively, and a hydraulic connection between said first distributing means (5) and second distributing means (6) so that the first distributing means (5) act on the second distributing means (6) and vice versa.

Abstract: A hydraulic valve suitable for operating apparatus (500) of brakes of wheels of a vehicle includes body means (2) having first inlet means (21), second inlet means (22) that are connected to respective supply apparatus (23; 24) of pressurised fluid, first outlet means (25) and second outlet means (26); first distributing means and second distributing means (5) arranged to connect the first inlet means (21) to the first outlet means (25) and second inlet means (22) to the second outlet means (26) respectively, first thrust means (7) and second thrust means (8) arranged to operate the first distributing means (5) and second distributing means (6) respectively, and a hydraulic connection between said first distributing means (5) and second distributing means (6) so that the first distributing means (5) act on the second distributing means (6) and vice versa.

Abstract: The dynamic fluid device has a first pumping arrangement and second pumping arrangement arranged in parallel with each other to pump a pressurized fluid to user devices; at least a distributor member interposed amongst the first pumping arrangement, second pumping arrangement and the user devices and connected to them with connection arrangements, the at least a distributor member being arranged to connect singly and/or jointly and/or according to predetermined sequences, the first pumping arrangement and/or the second pumping arrangement to the user devices.

Abstract: A valve for the hydraulic braking of work machines comprises an outer casing provided with a longitudinal seat and with at least one-to-third connection port, a slider slideable along the seat and provided with a contoured portion to control passage of the fluid through the connecting ports, and a reaction surface which is connected to the third connecting port, and an actuation for actuating sliding of the slider in the seat, which comprises first elastic element, interposed between the casing and the slider to contrast pressurized fluid thrust against the reaction surface, second elastic element interposed between a first abutment element of the slider and a second abutment element arranged inside the casing, which are adapted to contrast thrust of the first elastic element, and a manual actuation for actuating loading/unloading of the second elastic element.

Abstract: The hydraulic apparatus includes: at least a pumping device for pumping a fluid at a first pressure; at least a user device of the fluid at the first pressure; at least an emergency supply device connectable to the user device activating a connection; at least an activation device of the connection that can be operated at a second pressure of the fluid different from the first pressure and interposed between the user device and the emergency supply device, the activation device having an emergency configuration wherein both the pumping device and the emergency supply device are connected to the user device.

Abstract: The operating apparatus (500) suitable for operating first brakes of a front axle (501) and second brakes of a rear axle (502) of a vehicle comprises: first circuit means (503) and second circuit means (504) arranged to supply said first brakes and said second brakes with a pressurised fluid; first distributing means (505, 508) located between said first circuit means (503) and said second circuit means (504); supply means (23, 24) for said pressurised fluid; valve means (1) for sending said pressurised fluid to said first circuit means (503) and second circuit means (504), second distributing means (514, 515) being arranged between said first distributing means (505, 508) and said first brakes and second brakes arranged to deactivate said first distributing means (505, 508) in a malfunction condition of either said first circuit means (503) or second circuit means (504) and to connect said supply means (23, 24) with said first brakes or with said second brakes.

Abstract: Fluid-dynamic circuit for supplying primary and auxiliary uses with preset priorities comprises a pressurised fluid source, at least one first use with primary priority, at least one second use with secondary priority, at least one third use with low priority; said first use is directly connected to said source by a relative first pipe and said second use and third use are connectable to said source with respective second and third pipes by interposing a valve equipped with an internal distributor member to control said second and third pipes and movable according to at least three connection configurations, in a first configuration said second use and third use being shut, in a second configuration said second use being open and said third use being shut, in a third configuration said second use being open and said being open.

Abstract: A valve for the hydraulic braking of work machines comprises an outer casing provided with a longitudinal seat and with at least one-to-third connection port, a slider slideable along the seat and provided with a contoured portion to control passage of the fluid through the connecting ports, and a reaction surface which is connected to the third connecting port, and an actuation for actuating sliding of the slider in the seat, which comprises first elastic element, interposed between the casing and the slider to contrast pressurized fluid thrust against the reaction surface, second elastic element interposed between a first abutment element of the slider and a second abutment element arranged inside the casing, which are adapted to contrast thrust of the first elastic element, and a manual actuation for actuating loading/unloading of the second elastic element.

Abstract: The dynamic fluid device has a first pumping arrangement and second pumping arrangement arranged in parallel with each other to pump a pressurised fluid to user devices; at least a distributor member interposed amongst said first pumping arrangement, second pumping arrangement and said user devices and connected to them with connection arrangements, said at least a distributor member being arranged to connect singly and/or jointly and/or according to predetermined sequences, said first pumping arrangement and/or said second pumping arrangement to said user devices.

Abstract: Fluid-dynamic circuit for supplying primary and auxiliary uses with preset priorities comprises a pressurised fluid source, at least one first use with primary priority, at least one second use with secondary priority, at least one third use with low priority; said first use is directly connected to said source by a relative first pipe and said second use and third use are connectable to said source with respective second and third pipes by interposing a valve equipped with an internal distributor member to control said second and third pipes and movable according to at least three connection configurations, in a first configuration said second use and third use being shut, in a second configuration said second use being open and said third use being shut, in a third configuration said second use being open and said being open.