Vibration suppression system
AssigneeTextron Inc.
InventorsDennis R. Halwes, William A. Simmons
Life of this patent
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Abstract
A vibration isolator (10) includes an outer housing (14) with an inner housing (16) supported for reciprocation therein. The inner housing (16) includes an elastomeric spring (32) supporting a sleeve or inner cylinder (30) with a passage (44) extending therethrough interconnecting a pair of spaced apart chambers (40,42) defined between the housings (14, 16). A tuning mass including liquid is disposed in the chambers (40,42) and the passage (44). The inner housing (16) functions as a piston to move the tuning mass through the inner cylinder (30) between the chambers (40,42) and generate amplified counter-inertial forces to cancel vibration.
Claims20
A vibration damper, comprising:
- a housing having an inner chamber;
- a piston in said housing having a cross-sectional dimension to substantially fill the inner chamber and forming spaced apart chambers on opposite ends of said piston in the housing;
- a passage extending through said piston to interconnect the spaced apart chambers;
- resilient mounting means bonded between the outside surface of said piston and the walls of the inner chamber, said mounting means forming a seal between the spaced apart chambers;
- and
- a tuning mass, including a liquid, substantially filling said passage and the spaced apart chambers.
Apparatus for damping vibration transfer between two bodies, comprising:
- a housing connected to one of the bodies and having an elongate inner chamber;
- a piston in said housing having a cross-sectional dimension to substantially fill the inner chamber and forming spaced apart chambers on opposite ends of said piston in the housing;
- said piston including means to connect to the other one of said bodies;
- a passage extending through said piston to interconnect the spaced apart chambers;
- resilient mounting means bonded between the outside surface of said piston and the walls of the inner chamber, said mounting means forming a seal between the spaced apart chambers;
- and
- a tuning mass, including a liquid, substantially filling said passage and the spaced apart chambers and generating by movement of said piston amplified inertial counterforces responsive to relative motion between the housing and the piston.
Dependencies are inferred from the claim text.