Hydraulic assembly, in particular for braking systems or hydraulic actuating circuits of devices, in the motor vehicle and motorcycle sector

A hydraulic assembly for braking systems and/or for actuating clutches, comprising:

• a hydraulic unit having a hydraulic unit body, in which a delivery channel is formed, wherein said hydraulic unit body comprises a hydraulic unit body base, in which an inlet mouth of said delivery channel is formed;
• said hydraulic assembly further comprising at least one connection comprising:
• a feed pipe configured to receive a hydraulic fluid, and
• an eyelet configured to output said hydraulic fluid, said eyelet delimiting an eyelet hole defining an eyelet axis (X-X) that defines an axial direction (A-A), a radial direction (R-R) perpendicular to said axial direction (A-A), and a circumferential direction (C-C) transversal to said axial direction (A-A) and to said radial direction (R-R), wherein said eyelet comprises an upper eyelet sealing surface and a lower eyelet sealing surface;
• said hydraulic assembly further comprising:
• at least one pipe union having a hollow cylindrical body and a pipe union head, wherein said hollow cylindrical body is configured to receive said hydraulic fluid from said eyelet and to introduce said hydraulic fluid into said delivery channel, wherein said pipe union is coaxially arranged to said eyelet hole,
• at least one upper gasket arranged between said upper eyelet sealing surface and said pipe union head,
• at least one lower gasket arranged between said lower eyelet sealing surface and said hydraulic unit body base;
• wherein said at least one connection comprises a shoulder that extends sideways, at least in the radial direction (R-R), to said eyelet, wherein said shoulder comprises a lower projection that extends in the axial direction (A-A) by a side of said lower eyelet sealing surface not to interfere with said lower gasket;
• and wherein said hydraulic unit body base comprises a cavity configured to accommodate said lower projection in a complementary manner, so that said at least one connection is coupled to said hydraulic unit, preventing the hydraulic unit from rotating in the circumferential direction (C-C) during assembly and use;
• wherein said shoulder comprises an upper projection that extends in the axial direction (A-A), diametrically opposite to said lower projection by a side of said upper eyelet sealing surface not to interfere with said upper gasket;
• and/or wherein said eyelet comprises an eyelet base and an eyelet head, which are diametrically opposite, wherein said eyelet base is arranged on a side of said feed pipe, and wherein said shoulder is formed either on said eyelet base or said eyelet head.