Controlled, impulse-regulated feed of fluid in minimal quantities

摘要

There is a discharge channel (10) leading away from the displacement chamber (8) and issuing into a drip opening. This channel is tightly closable against the displacement chamber by a valve tensioned in the closing direction and against the delivery direction. A tappet-type displacement component (30), controllable by an impulse-regulated operating device (32) is movable forwards and backwards in the displacement chamber, causing fluid to be delivered from the feed channel to the discharge channel. A valve body (16) of the valve is formed as a separate component from the displacement component and is under spring tension. It can be raised from its valve seat by the backward movement of the displacement component.