Spring devices – Resilient shock or vibration absorber – Including energy absorbing means or feature
Patent
1997-08-04
2000-03-07
Butler, Douglas C.
Spring devices
Resilient shock or vibration absorber
Including energy absorbing means or feature
188378, 188352, 92 79, 267136, F16F 910
Patent
active
06032936&
ABSTRACT:
A fluid mounting (20) for isolating or damping vibration between a vibrating member (21) and a structure (23). In one aspect, the fluid mounting (20) includes inner (22) and outer (24) members, a flexible element (26), first (28) and second (30) operating chambers, a fluid passageway (32) interconnecting operating chambers (28, 30), and a partitionless volume compensator (36) including a compensator chamber (38) separated into a gas-filled portion (40) and a fluid-filled portion (42). Notably, the chamber (38) is devoid of any separating barrier. At least one lock passage (44) interconnects the fluid-filled portion (42) with one of the first and second operating chambers (28, 30), and a working fluid (34). Preferably a bubble trap depression (46) focuses any gas bubbles into the lock passage (44). In another aspect, mounting (20) may include laminated shim construction with sloping profiles thereon to prevent bubble trapping.
REFERENCES:
patent: 3651902 (1972-03-01), Peddinghaus
patent: 4103492 (1978-08-01), Sakazume
patent: 4236607 (1980-12-01), Halwes et al.
patent: 4349184 (1982-09-01), Peterson et al.
patent: 4817925 (1989-04-01), Sprang et al.
patent: 5501434 (1996-03-01), McGuire
patent: 5540549 (1996-07-01), McGuire
patent: 5735510 (1998-04-01), Takehara et al.
patent: 5788372 (1998-08-01), Jones et al.
Butler Douglas C.
Lord Corporation
Rupert Wayne W.
Wayland Randall S.
Wright James W.
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