Spring devices – Resilient shock or vibration absorber – Including energy absorbing means or feature
Patent
1992-11-23
1993-11-16
Graham, Matthew C.
Spring devices
Resilient shock or vibration absorber
Including energy absorbing means or feature
26714015, F16M 100, F16F 1300
Patent
active
052616495
ABSTRACT:
A fluid-filled elastic mount wherein an elastic body which elastically connects an inner and an outer sleeve partially defines a pressure-receiving chamber filled with a non-compressible fluid, and an oscillating plate is provided to partially define an auxiliary fluid chamber which cooperates with the pressure-receiving chamber to form a fluid chamber. Two yoke members are connected to respective opposite pole faces of a permanent magnet disposed on one of opposite sides of the oscillating plate remote from the fluid chamber. The yoke members, which cooperate with the permanent magnet to define a closed magnetic circuit, define therebetween an annular gap in the magnetic circuit, in which is received an annular moving coil fixed to the oscillating plate. The coil is axially displaced in the gap to oscillate the oscillating plate upon energization of the coil.
REFERENCES:
patent: 4650170 (1987-03-01), Fukushima
patent: 4693455 (1987-09-01), Andra
patent: 4941649 (1990-07-01), Funahashi et al.
patent: 5029825 (1991-07-01), Doi
patent: 5076550 (1991-12-01), Mayama et al.
patent: 5098072 (1992-03-01), Muramatsu et al.
Kato Rentaro
Matsui Tetsu
Graham Matthew C.
Tokai Rubber Industries Ltd.
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