Blattventil mit verjüngtem Fuss und doppeltem Radius-Ventilfänger

摘要

The discharge valve assembly includes a valve stop having a natural frequency and a valve member movable into engagement with the stop and having a tip and a root with a free length between which is defined by a leg portion and a valve head. The leg portion tapers and widens in the direction of the valve head so as to have an increasing variable spring rate with opening movement and the valve stop has a profile starting at the root having a first portion which is of a first fixed radius and which transitions into a second portion which is of a second, larger fixed radius. Engagement between the valve member and stop takes place over an entire opening movement of the valve member.