Vibration isolation apparatus

Details Vibration isolation apparatus Vibration isolation apparatus

1992-01-24

1993-07-20

Butler, Douglas C.

Spring devices

Resilient shock or vibration absorber

Including energy absorbing means or feature

267219, 26714015, F16F 500, B60G 1506

Patent

active

052286622

ABSTRACT:
A vibration isolation apparatus comprises a first auxiliary fluid chamber communicating through a first restricted path with a main fluid chamber and a second auxiliary fluid chamber communicating through a second restricted path with the main fluid chamber. The second restricted path has electrode plates whose power supply condition is controlled by a control unit. Further, an electric viscous fluid is filled in the main fluid chamber, the first and second auxiliary fluid chambers, and the first and second restricted paths. When shake vibration is generated, the electrode plates are energized by the control unit so that none of the electric viscous fluid flows through the second restricted path. The electric viscous fluid causes a resonance of the fluid, and has flow resistance in the first restricted path to absorb the shake vibration. Idle vibration sets the first restricted path in the loading condition to prevent the electric viscous fluid from flowing through the restricted path. On the other hand, the electric viscous fluid flows through the second restricted path so that a resonance of the fluid is caused in the second restricted path to decrease the dynamic spring constant and absorb the idle vibration.

REFERENCES:
patent: 4909489 (1990-03-01), Doi
patent: 4923178 (1990-05-01), Matsumoto et al.
patent: 4936555 (1990-06-01), Ishiyama et al.
patent: 4971299 (1990-11-01), Doi
patent: 5029825 (1991-07-01), Doi
patent: 5037071 (1991-08-01), Takano et al.
patent: 5050850 (1991-09-01), Noguchi et al.
patent: 5088699 (1992-02-01), Doi
patent: 5088703 (1992-02-01), Takano et al.

Affiliated with

Also associated with

Rating

Vibration isolation apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Vibration isolation apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Vibration isolation apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1755983