Engine mount actuator for reducing vibrational forces

Details Engine mount actuator for reducing vibrational forces Engine mount actuator for reducing vibrational forces

1996-05-01

1998-10-13

Braun, Leslie A.

Spring devices

Resilient shock or vibration absorber

Including energy absorbing means or feature

188267, 248550, F16F 500

Patent

active

058201130

ABSTRACT:
An engine mount actuator having an upper casing open at one end, and connected at an opposite end to an engine mounting bolt. The engine mounting bolt extends within the casing and is supported by a bushing which is in turn laterally supported by an elastomeric isolator disk within the upper casing. A lower casing including a frame mounting bolt at one end, and opened at another end faces the opened end of the upper casing. A mounting flange is supported between the upper and lower casing open ends supports a stator, having first and second toroidal windings which define a circumferential space. A circumferential magnet assembly includes a permanent magnet means supported within the circumferential space, and is coupled to the engine mounting bolt through a spherical bearing. The magnet assembly produces a force against the engine mounting bolt in response to a current through the first and second toroidal windings. Counter vibratory forces may therefore be applied to the engine mounting bolt for suppressing vibrations from being transferred to the frame.

REFERENCES:
patent: 4083433 (1978-04-01), Geohegan, Jr. et al.
patent: 4624435 (1986-11-01), Freudenberg
patent: 4664219 (1987-05-01), Hoerig et al.
patent: 4687171 (1987-08-01), Freudenberg
patent: 4699348 (1987-10-01), Freudenberg
patent: 4759534 (1988-07-01), Hartel
patent: 4869474 (1989-09-01), Best et al.
patent: 5238232 (1993-08-01), Kobayashi et al.
patent: 5409078 (1995-04-01), Ishioka et al.
patent: 5427347 (1995-06-01), Swanson et al.
patent: 5445249 (1995-08-01), Aida et al.
patent: 5549284 (1996-08-01), Lee

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