Patent ID: 8215456

Claim:
Auxiliary lubrication unit for lubricant introduction devices, said unit comprising a body having a longitudinal borehole in which a control piston is urged by a spring so that it can move axially in the direction of a seal, and lateral connections of a chamber held open by the control piston in the longitudinal borehole from a lubricant pump and to an installation to be supplied with lubricant, so that in the sealed position of the control piston lubricant can be fed through the chamber from the lubricant pump to the installation, wherein, if the pump fails, the control piston can be moved by means of auxiliary lubricant not supplied from the pump out of its sealed position against the urging of the spring into an auxiliary filling position in which the connection to the installation is open via the longitudinal borehole and the connection to the lubricant pump is closed, so that the installation can be filled with auxiliary lubricant.