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Shock absorber buffer having a piston rod 12 engaged with a piston 14 and a spring 32, where a seal 30 functions like a check valve, so that when the damper is in compression stroke, the seal 30 seals the grooves (Fig 7, 28) around the piston 14, restricting fluid flow; and in expansion stroke, the seal 30 moves away from piston 14 and opens the grooves (Fig 7, 28) to minimise resistance. The piston 14 may have a central hole (Fig 7, 56) for receiving the piston rod 12 and a flow channel (Fig 7, 58). The seal 30 may be an O-ring and may have protrusions (Fig 20a, 48) and grooves (Fig 20a, 52); and the piston 14 may have protrusions (Fig 20b, 60) and chamfers (Fig 20b, 62) to allow a gap between the seal 30 and the piston 14 for fluid flow. Alternate embodiment of piston has channel (Fig 24-25, 40) on both sides linked by a through hole 66.
Shock absorber buffer having a piston rod 12 engaged with a piston 14 and a spring 32, where a seal 30 functions like a check valve, so that when the damper is in compression stroke, the seal 30 seals the grooves (Fig 7, 28) around the piston 14, restricting fluid flow; and in expansion stroke, the seal 30 moves away from piston 14 and opens the grooves (Fig 7, 28) to minimise resistance. The piston 14 may have a central hole (Fig 7, 56) for receiving the piston rod 12 and a flow channel (Fig 7, 58). The seal 30 may be an O-ring and may have protrusions (Fig 20a, 48) and grooves (Fig 20a, 52); and the piston 14 may have protrusions (Fig 20b, 60) and chamfers (Fig 20b, 62) to allow a gap between the seal 30 and the piston 14 for fluid flow. Alternate embodiment of piston has channel (Fig 24-25, 40) on both sides linked by a through hole 66.
Improvements in Dampers
DAVID PECAR (author)
2021-07-14
Patent
Electronic Resource
English
| Springer Verlag | 2024
| Engineering Index Backfile | 1931