| 摘要 |
<p>A lubricant doser, assembly in which each doser includes a dosing cylinder and a dosing piston moving therein as well as conduits and other structure for leading lubricant alternately to both sides of the piston, including a stem in the cylinder, the stem both moving back and forth in the axial direction and turning about the longitudinal axis of symmetry thereof. The stem is provided with channels so that, by the movement of the stem the lubricant is allowed to flow to one side of either the control valve or the dosing piston depending on the doser, and accordingly by each next movement of the stem following a backward motion, to the other side of either the control valve or the dosing piston.</p> |
