| 摘要 |
A lubricant pump in central-lubricating systems, consisting of a compressed-air cylinder which is controlled by a pressure valve 1 and whose piston 4 is connected via a piston rod 13 to the piston 10 of a second, smaller grease-compression cylinder, by means of which the grease is pressed in portions into the lubricating points, and to which lubricant pump a grease cylinder furthermore belongs, from which one portion at a time, under the influence of the pressure of a piston 9 in the grease cylinder, is pressed through a one-way valve 12 into the grease-compression cylinder, for compressing the next grease portion. The lubricant pump according to the invention is characterized in that the pressure valve 1 is connected to the air-pressure compression space C of the grease cylinder such that full operating pressure is present in the compression space during the operating phase of the grease press, and in that the pressure can dissipate slowly after completion of the operating phase. <IMAGE> |
