Spring devices – Resilient shock or vibration absorber – Including energy absorbing means or feature
Patent
1987-07-01
1988-11-08
Reger, Duane A.
Spring devices
Resilient shock or vibration absorber
Including energy absorbing means or feature
248566, F16F 934
Patent
active
047830620
ABSTRACT:
A hydraulic mount assembly includes a pair of mounting members connected to each other through a hollow elastomeric body of natural or synthetic rubber. The body is closed by a resilient diaphragm so as to form a cavity for damping liquid. A partition or plate is provided to divide the fluid filled cavity into two distinct chambers. A primary chamber is formed between the partition and the interior wall of the hollow body. A secondary chamber is formed between the partition and the interior wall of the diaphragm. The partition includes at least two passages connecting the two chambers. A sliding gate extends across the entry to the passages. This gate is displaceable to direct the flow of fluid between the primary and secondary chambers through a selected passage or passages in the partition. A solenoid actuator mounted on the partition includes multiple electric coils that allow the positive positioning of the gate. A control circuit with onboard transducers is provided to monitor vehicle operating and road conditions. A microprocessor acts in response to the sensed conditions causing the necessary sequential energization of the series of coils.
REFERENCES:
patent: 4422779 (1983-12-01), Hamaekers et al.
patent: 4583723 (1986-04-01), Ozawa
patent: 4588173 (1986-05-01), Gold et al.
patent: 4641808 (1987-02-01), Flower
patent: 4671227 (1987-06-01), Hollerweger et al.
patent: 4700933 (1987-10-01), Chikamori et al.
Hamberg James P.
Hoying John F.
General Motors Corporation
Phillips R. L.
Reger Duane A.
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