Fluid-filled cylindrical elastic connector having two orifice pa

Details Fluid-filled cylindrical elastic connector having two orifice pa Fluid-filled cylindrical elastic connector having two orifice pa

1990-03-19

1991-10-29

Halvosa, George E. A.

Spring devices

Resilient shock or vibration absorber

Including energy absorbing means or feature

180312, 248562, 248636, 267219, F16F 1300

Patent

active

050609181

ABSTRACT:
A fluid-filled cylindrical elastic connector having an inner sleeve, an outer sleeve, and an elastic body between the two sleeves. The elastic connector has a main fluid chamber and a first and a second auxiliary fluid chamber, which are formed between the inner and outer sleeves such that the first and second auxiliary fluid chambers are disposed diametrically opposite to the main fluid chamber with respect to the inner sleeve, and such that the first and second auxiliary fluid chambers are spaced from each other in an axial direction of the inner sleeve. The main, first auxiliary, and second auxiliary fluid chambers are filled with a non-compressible fluid. Upon application of a vibrational load, relative pressure changes occur between the main fluid chamber and the first and second auxiliary fluid chambers. The elastic mount further has a first orifice passage having a first cross sectional area and communicating with the main fluid chamber and the first auxiliary fluid chamber, so as to allow restricted fluid flows therebetween, and a second orifice passage having a second cross sectional area which is larger than the first cross sectional area, and communicating with the main fluid chamber and the second auxiliary fluid chamber, so as to allow restricted fluid flows therebetween.

REFERENCES:
patent: 4479638 (1984-10-01), Wolf et al.
patent: 4588174 (1986-05-01), Konishi
patent: 4720087 (1988-01-01), Duclos et al.
patent: 4763884 (1988-08-01), Matsui et al.
patent: 4884789 (1989-12-01), Takeda et al.
patent: 4893797 (1990-01-01), Le Fol et al.

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