Viscous isolator with air spring
AssigneeXCMG American Research Corporation
InventorLin Zhu
Life of this patent
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Abstract
A vibration isolator includes a housing forming an internal cavity, an elastomeric diaphragm within the internal cavity, the elastomeric diaphragm combining with a first end of the housing to form an air spring within the internal cavity, a mechanical spring in series with the air spring within the internal cavity; a mount in series with the mechanical spring opposite the air spring, an annular elastomeric stopper between a second end of the housing and the mount, wherein the mount and the annular elastomeric stopper combine to seal the second end of the housing to form a chamber within the internal cavity between the elastomeric diaphragm and the second end of the housing, and a plate seated on the mount within the chamber.
Claims20
A vibration isolator comprising:
- a housing forming an internal cavity;
- an elastomeric diaphragm within the internal cavity, the elastomeric diaphragm combining with a first end of the housing to form an air spring within the internal cavity;
- a mechanical spring in series with the air spring within the internal cavity;
- a mount in series with the mechanical spring opposite the air spring;
- an annular elastomeric stopper between a second end of the housing and the mount, wherein the mount and the annular elastomeric stopper combine to seal the second end of the housing to form a chamber within the internal cavity between the elastomeric diaphragm and the second end of the housing;
- and
- a plate seated on the mount within the chamber,
- wherein the elastomeric diaphragm includes a first spring seat for a first end of the mechanical spring,
- wherein the mount includes a second spring seat for a second end of the mechanical spring, and
- wherein the plate is seated on the second spring seat between the mount and the second end of the mechanical spring.
A vibration isolator comprising:
- a cylindrical housing forming an internal cavity;
- an elastomeric diaphragm within the internal cavity, the elastomeric diaphragm combining with a first end of the housing to form an air spring within the internal cavity;
- a mechanical coil spring in series with the air spring within the internal cavity;
- a metal mount in series with the mechanical coil spring opposite the air spring;
- an annular elastomeric stopper between a second end of the housing and the mount, wherein the mount and the annular elastomeric stopper combine to seal the second end of the housing to form a chamber within the internal cavity between the elastomeric diaphragm and the second end of the housing;
- a first plate seated on the mount within the chamber;
- and
- a second plate adjacent the second end of the housing, the second plate being fixed relative to the housing and dividing the chamber into a first portion and a second portion, the first portion including the first plate and the mechanical coil spring and the second portion including a portion of the mount,
- wherein the mount extends into the first portion of the chamber to contact the mechanical coil spring,
- wherein the elastomeric diaphragm includes a first spring seat for a first end of the mechanical coil spring,
- wherein the mount includes a second spring seat for a second end of the mechanical coil spring, and
- wherein the first plate is seated on the second spring seat between the mount and the second end of the mechanical coil spring.
Dependencies are inferred from the claim text.