Mounting arrangement for automotive engine or the like having mu

Details Mounting arrangement for automotive engine or the like having mu Mounting arrangement for automotive engine or the like having mu

1989-02-27

1990-05-29

Reger, Duane A.

Spring devices

Resilient shock or vibration absorber

Including energy absorbing means or feature

267218, F16F 934

Patent

active

049289357

ABSTRACT:
In order to attenuate low and intermediate frequency vibration ranges a mounting device is provided with two electronically controlled variable orifices. During low frequency vibrational ranges one is left either de-energized or partially energized to permit either free or limited communication between a main working chamber and a first auxiliary or expansion chamber, while the other is fully energized to close communication between the main chamber and a second auxiliary chamber. When the higher vibrational range is entered the first orifice is conditioned to cut off communication with the first auxiliary chamber and while the second is de-energized. The passage structure in the second orifice unit is designed to induce the fluid therein to undergo resonance when the higher vibration frequency is applied thereto.

REFERENCES:
patent: 3599428 (1971-08-01), Chaney
patent: 4559534 (1988-07-01), Hartel
patent: 4671227 (1987-06-01), Hollerweger et al.
patent: 4720087 (1988-01-01), Duclos et al.
patent: 4742998 (1988-05-01), Schubert
patent: 4757981 (1988-07-01), Hartel
patent: 4773632 (1988-09-01), Ha267140.1 E
Scientific American, "Phase Transition Electrorheological Fluids Flourish in Drought", Sep. 1988, p. 22.

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