Method for varying the spring rigidity of an elastomer mount, an

Details Method for varying the spring rigidity of an elastomer mount, an Method for varying the spring rigidity of an elastomer mount, an

1991-10-15

1993-05-25

Oberleitner, Robert J.

Spring devices

Vehicle

Elastomeric

26714011, 26714015, 267153, F16F 308

Patent

active

052133150

ABSTRACT:
A method for varying the spring rigidity of an elastomer engine mount, such as for motor vehicles, includes bringing one of two at least intermittently simultaneously loadable parallel-connected spring bodies into continuous engagement with supports and bringing the other of the two spring bodies into intermittent contact with supports as a function of predetermined operating parameters, for absorbing induced forces in parallel with the two spring bodies. The other spring is connected in parallel with a force brought to bear separately from the outside for causing it to contact its supports. An elastic engine mount for motor vehicles includes a hollow-cylindrical spring body and a solid-cylindrical spring body disposed concentrically relative to one another between an engine mount plate and a support plate to be fixed to a vehicle body. According to one embodiment, a diaphragm is disposed between the lower end surface of the solid-cylindrical spring body and the support plate for defining a hollow chamber between the diaphragm and the support plate. The hollow chamber operatively connects the solid-cylindrical spring body with the plates upon forced introduction of hydraulic fluid into the hollow chamber. According to another embodiment, a mechanical plunger is disposed between the lower end surface of the solid-cylindrical spring body and the support plate. A threaded bolt engages the mechanical plunger. A control motor drives the threaded bolt and operatively connects the solid-cylindrical spring body with the plates.

REFERENCES:
patent: 3118659 (1964-01-01), Paulsen
patent: 3658314 (1972-04-01), Luzsicza
patent: 4468016 (1984-08-01), Pineau
patent: 4717130 (1988-01-01), Barkhage
patent: 4762309 (1988-08-01), Hutchins
patent: 4790521 (1988-12-01), Ide et al.

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