Resilient Vibration Isolator Having a Plurality of Bumps on an Engagement Surface Thereof
AssigneesGM Global Technology Operations LLC, DENSO International America, Inc.
InventorsKent Ting, Craig W. Lewitzke, Patrick E. Fix III, Dwayne R. Taylor
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Abstract
A dual-rate resilient isolator having a plurality of raised, generally conical bumps formed on an engagement surface thereof. The bumps in combination with a main body of the resilient isolator provide a dual-rate for isolating CRFM noise vibration and or other vibrations (via the relatively softer resiliency of the bumps) and isolating road vibration and shock (via the relatively harder resiliency of the main body) even though the bumps and the main body are composed of the same resilient material.
Claims20
A dual-rate resilient isolator, comprising:
- a main body having a first engagement surface and an oppositely disposed second engagement surface;
- and
- a plurality of raised, generally conically shaped bumps disposed at said first engagement surface;
- wherein said main body is composed of a predetermined resilient material, and wherein said plurality of raised bumps is integrally formed with respect to the predetermined resilient material of said main body.
A dual-rate resilient isolator, comprising:
- a main body having a first engagement surface and an oppositely disposed second engagement surface;
- and
- a plurality of generally conically shaped bumps disposed in a predetermined pattern across said first engagement surface, each bump of said plurality of bumps being raised in an axial direction which is normal to said first engagement surface;
- wherein said main body is composed of a predetermined resilient material, and wherein said plurality of bumps is integrally formed with respect to the predetermined resilient material of said main body;
- and
- wherein when said dual-rate isolator is subjected to vibration in the axial direction, said plurality of bumps provide a first rate of resilient response thereto, and said main body provides a second rate of resilient response thereto, wherein said first rate is resiliently softer than said second rate.
The dual-rate resilient isolator of claim 16, wherein said predetermined pattern is preselected so as to distribute loads of the vibration generally across the first engagement surface.
A mounting system for a condenser, radiator, fan module (CRFM) of a motor vehicle, comprising:
- at least one mounting foot connected with a CRFM;
- a cradle connected to a frame of the motor vehicle;
- and
- a dual-rate resilient isolator disposed in abutting relation between a respective said mounting foot and said cradle, said dual-rate resilient isolator comprising:
- a main body having a first engagement surface and an oppositely disposed second engagement surface;
- and
- a plurality of bumps disposed in a predetermined pattern across said first engagement surface, each bump of said plurality of bumps being raised in an axial direction which is normal to said first engagement surface;
- wherein said main body is composed of a predetermined resilient material, and wherein said plurality of raised bumps is integrally formed with respect to the predetermined resilient material of said main body;
- and
- wherein when vibration originating at either of said cradle and the CRFM is subjected to the dual-rate resilient isolator in the axial direction, said plurality of bumps provide a first rate of resilient response thereto, and said main body provides a second rate of resilient response thereto, wherein said first rate is resiliently softer than said second rate such that the vibration originating at one of the cradle and the CRFM is mitigated with respect to the other at said dual-rate resilient isolator.
Dependencies are inferred from the claim text.