Reed valve gap. This is called “hang-open” and affects performance. Oct 1, 2020 · This work consists of an experimental investigation into the fluid–structure interaction problem due to the flow acting on the valve surfaces in enlarged reed type valves, aimed at evaluating the influence of the valve-seat gap on the dynamic behavior of the valve. In the analysis of the flow in small gaps the viscosity is dominant so the model of viscous compressible flow was used. Apr 9, 2020 · I did notice that when I look at the reed valves I see a very small gap under most of the reed valves. Apr 27, 2021 · The flow in the gap between the reed and the valve seat has a significant influence on the dynamic characteristics of the reed valve used in reciprocating compressors. Oct 6, 2023 · Just a thought here but if the petals open further (more flow) but, don't close in time (tired reed material), it will negate any possible gains. Mar 31, 2009 · I'm using the standard reeds and now the block is out it is apparent that there is a small gap underneath two of the reed tips (the two upper ones), maybe only half a millimeter or so, but there is definitely a gap. May 26, 2020 · The reed’s modulus of elasticity decreases so that in equal engine conditions the reed will deform and open farther. I flipped over the reed valves and still see some small gaps. . Two theoretical models for the flow in valve gaps, a very small and large gap, were considered. The fluid–structure interaction (FSI) method is an effective method for studying reciprocating compressors. rgymhzqg dpvkutb qpuv bpheo zvzusf kso ewgt wtz mxobj xvad