Filloux piston ring retainer ring
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Why is the support ring of this company so thin? I also don’t know what material it’s made of. Does anyone know? I have a question.
Whether the support ring is thin or thick depends on whether it matches the height of the protrusion in the ring groove (compared to previous dimensions). The material composition mainly consists of filled polytetrafluoroethylene, with additives such as graphite, glass fiber, and lead powder; the exact proportions are kept confidential!
Okay, thank you. There’s a question bothering me: assuming the cylinder diameter is 500, is the outer diameter of the piston ring also 500? Is the inner diameter of the piston ring determined by the depth of the ring groove on the piston? Also, is the height of the piston ring determined by the width of the ring groove, that is, how much it will protrude once the piston ring is installed on the piston?
The material of the support ring is usually graphite-filled polytetrafluoroethylene. Due to relative motion, there is a gap between the outer diameter and the cylinder diameter, which equals the thickness of the oil film plus the thermal expansion effect. The height of the inner diameter ring depends on the piston ring groove