SCHMIERMITTELPUMPE MIT EINER EINSTELLBAREN DOSIERVORRICHTUNG

The invention relates to a lubrication pump, having a stroke movement of a supply piston (10) with adjustable proportioning for the quantity of the lubricant supplied by one pump stroke, the supply piston, which is operated by the pump, sucking the lubricant into an induction chamber (12), whose volume can be adjusted, the lubricant furthermore being supplied from this induction chamber, via an intermediate holding chamber (33), to the lubricant outlet or lubricant circuit, and a non-return valve being provided in the aforesaid supply path of the lubricant. In order to feed the supply quantity, which is adjusted with the aid of the positioning arrangement, tolerably accurately, i.e. with only small quantity deviations per supply stroke to the lubricant circuit, it is provided that the non-return valve (20) is arranged, seen in the supply direction (32) of the lubricant, connected to the holding chamber (12) and in front of the intermediate holding chamber (33). This prevents air entering into the intermediate holding chamber and renders the adjusted supply quantity precise.