Piston for hydraulic motor vehicle brake system, has supporting element supporting end of compression spring and snapped in undercut of piston and made of plastic, where supporting element has support ring

摘要

The piston (49) has a piston channel (56) for penetrating the piston, and a valve element (45) arranged relative to the piston and pretensioned against a valve seat (44) by a compression spring (46) and fluid-tightly attached to the valve seat for locking the piston channel. One end (47) of the compression spring is supported at the valve element. A supporting element (50) supports another end (48) of the compression spring. The supporting element is snapped in an undercut (51) of the piston, and is made of plastic, where the supporting element has a support ring (52).