Lubrication module for a turbomachine lubrication station

A lubrication module for at least one lubrication station of a turbomachine, the lubrication module comprising at least one positive displacement pump including a pump body delimiting a main chamber configured to be in fluid communication with a main lubrication circuit and an auxiliary chamber configured to be in fluid communication with an auxiliary lubrication circuit, and a piston movably mounted in the pump body between an inactive configuration and an active configuration, the piston being configured to perform, in the active configuration, a pumping movement between a top dead center and a bottom dead center by cooperation with a cam of a shaft of the turbomachine and, in the inactive configuration, not cooperate with the cam of the shaft of the turbomachine, the positive displacement pump including a return element configured to return the piston to the active configuration, and the piston extending into the main chamber so that the filling of the main chamber with lubricating fluid beyond a predetermined threshold brings the piston into the inactive configuration.