| 摘要 |
<p>The invention relates to a distributing element, especially a discharging distributor, for metering lubricants used for lubricating systems. Said distributing element comprises a valve piston (1) that is provided with a bore (2) and can be displaced, under the effect of the pressure prevailing at a lubricant inlet (6), counter to the effect of a first return spring (7) from an initial position in which the bore (2) opens a connection between a dispensing chamber (3) and a metering chamber (4) via a passage duct (5) into a metering position in which the valve piston (1) opens a passage (8) from the lubricant inlet (6) to the passage duct (5) and thus the metering chamber (4), and a dispensing piston (9) that can be displaced, under the effect of lubricant entering the metering chamber (4), counter to the effect of a second return spring (10) from an initial position so as to displace the quantity of lubricant located in the dispensing chamber (3) between the valve piston (1) and the dispensing piston (9) into a lubricant outlet (11). The valve piston (1) can be optionally moved into an intermediate position until the point of pressure equilibrium is reached, the valve piston (1) blocking the passage (8) from the lubricant inlet (6) to the passage duct (5) and thus the metering chamber (4) in said intermediate position. The valve piston (1) can be returned to the initial position thereof by the first return spring (7) while the dispensing piston (9) can be returned to the initial position thereof by the second return spring (10) when the pressure is relieved at the lubricant inlet (6).</p> |
