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Magnetic seal for magnetically-responsive devices, systems, and methods

A technology of magnetic response and seal, applied in the field of magnetic response system, can solve problems such as intermittent fault design and construction limitation

Inactive Publication Date: 2019-04-26
LORD CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] While current applications have been tested and passed specified durability life tests, intermittent failures and new design configurations have limited the technology

Method used

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  • Magnetic seal for magnetically-responsive devices, systems, and methods
  • Magnetic seal for magnetically-responsive devices, systems, and methods
  • Magnetic seal for magnetically-responsive devices, systems, and methods

Examples

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Embodiment Construction

[0023] The subject matter provides magnetic seals for magnetically responsive devices, systems and methods. The subject matter provides magnetic seals designed to prevent contamination of bearings or bushings by concentrating magnetic flux in areas that will prevent leakage of magnetically responsive material. As discussed above, typical sealing methods include axial / radial elastomeric contact seals, and these types of seals do not do well with dry contamination and fail over time. In contrast, non-contact magnetic seals retain powder and prevent leaks even when there is a gap between stationary and moving parts.

[0024] In one aspect, the subject matter provides a magnetically responsive device and a magnetic seal for use with the magnetically responsive device. Such as figure 1 As shown, a magnetically responsive device, generally designated 100, includes a shaft 110 and a rotor 130 interconnected with the shaft 110 to limit relative rotation therebetween. In some embodi...

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PUM

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Abstract

A magnetically-responsive device (100) having a magnetic seal (160,170) to retain magnetically responsive material within a defined space (150) is provided. The magnetically-responsive device (100) has a shaft (110), a rotor (130), a magnetic field generator (145), a magnetically-responsive medium and a magnetic seal (160,170). The seal (160,170) is preferably a non-contact seal (160,170) that does not deteriorate over time and generates little to no resistance.

Description

[0001] Cross References to Related Applications [0002] This application claims Patent Cooperation Treaty Application PCT / US16, filed August 23, 2016, entitled "Magnetic Seal for Magnetically-Responsive Devices, Systems, and Methods" / 48137, which application is hereby incorporated by reference in its entirety. technical field [0003] The subject matter disclosed herein generally relates to magnetically responsive systems. More specifically, the subject matter disclosed herein relates to seals for use with magnetically responsive systems to prevent migration of magnetically responsive material from the system. Background technique [0004] Mechanical systems containing magnetically responsive (MR) materials inside can provide controllable feedback to applied forces or torques. Such a system may provide a range of benefits, such as in a tactile feedback device of a steer-by-wire system, where torque feedback to the operator is generated when a rotor attached to a shaft sh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K5/124H02K1/24
CPCH02K1/246H02K5/124H02K5/161H02K7/083F16D57/002F16D2121/20
Inventor 迈克尔·加祖姆斯基阿斯卡里·巴德雷-阿拉姆卢卡·迪德科
Owner LORD CORP
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