Hydraulic antivibratory sleeves

Details Hydraulic antivibratory sleeves Hydraulic antivibratory sleeves

1990-11-21

1992-04-07

Peters, Jr., Joseph F.

Spring devices

Resilient shock or vibration absorber

Including energy absorbing means or feature

267219, 248562, F16F 500

Patent

active

051021064

ABSTRACT:
A hydraulic antivibratory sleeve comprising two rigid tubular frames (1, 2), one surrounding the other and joined together by an elastomer body (3) shaped so as to form therewith at least two diametrically opposite sealed pockets (A, B) communicating together through a narrow channel (9), the assembly of said pockets and said narrow channel being filled with a damping liquid, the portion of the elastomer body which defines one at least of the pockets (A) having in axial section the general form of a U or a V open radially outwardly and being adhered to two rigid annular shaped sections (8) one at least of which contains the narrow channel. The mutual axial spacing of the two shaped sections (8) is provided by means of bosses (12, 15, 16) formed on the internal face of this frame (2).

REFERENCES:
patent: 4717111 (1988-01-01), Saito
patent: 4809960 (1989-03-01), Kakimoto et al.
patent: 4871151 (1989-10-01), Kanda
patent: 4896868 (1990-01-01), Thelamon et al.
patent: 4909489 (1990-03-01), Doi
patent: 4936557 (1990-06-01), Schwerdt

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