Hydraulic mount for vehicle

Patent metadata

Field	Value
Publication number	US-10473181-B2
Application number	US-201715829942-A
Country	US
Kind code	B2
Filing date	Dec 3, 2017
Priority date	Oct 31, 2017
Publication date	Nov 12, 2019
Grant date	Nov 12, 2019

Abstract

A hydraulic mount for a vehicle includes: a core bush coupled to a bolt; a main rubber formed on an outer surface of the core bush; an orifice portion coupled to a lower portion of the main rubber to divide an upper fluid chamber and a lower fluid chamber; and a lower rubber film coupled to a lower portion of the orifice portion. The orifice portion includes an upper nozzle plate formed with a first fluid inlet and outlet port, a lower nozzle plate formed with a fluid path and a second fluid inlet and outlet port, and a cylinder-type membrane vertically arranged between the upper nozzle plate and the lower nozzle plate, and a pattern of crests and valleys is formed along a circumference of the membrane, the pattern of crests and valleys selectively contacting the upper nozzle plate and the lower nozzle plate.

First claim

What is claimed is:

1. A hydraulic mount for a vehicle comprising:
a core bush coupled to a bolt;
a main rubber formed on an outer surface of the core bush;
an orifice portion coupled to a lower portion of the main rubber to divide an upper fluid chamber and a lower fluid chamber; and
a lower rubber film coupled to a lower portion of the orifice portion, wherein
the orifice portion includes an upper nozzle plate formed with a first fluid inlet and outlet port, a lower nozzle plate formed with a fluid path and a second fluid inlet and outlet port, and a cylinder shaped membrane vertically arranged between the upper nozzle plate and the lower nozzle plate, and
a pattern of crests and valleys is formed along a circumference of the membrane, the pattern of crests and valleys selectively contacting the upper nozzle plate and the lower nozzle plate,
wherein the upper nozzle plate includes a ring-shaped horizontal plate, and the first fluid inlet and outlet port and a vertical pipe are formed on an inner diameter portion of the horizontal plate and supported by the lower nozzle plate.

2. The hydraulic mount for the vehicle of claim 1 ,
wherein the vertical pipe is formed with a plurality of first fluid through-holes at a uniform interval along a circumference thereof.

3. The hydraulic mount for the vehicle of claim 1 , wherein:
the fluid path is formed on an outer circumference of an upper surface of the lower nozzle plate,
the second fluid inlet and outlet port is formed on a predetermined position of the fluid path, and
second fluid through-holes are repeatedly formed along an inner circumference of the upper surface of the lower nozzle plate, the second fluid through-holes vertically penetrated with an upper nozzle plate supporting surface.

4. The hydraulic mount for the vehicle of claim 1 ,
wherein a distance between the vertical pipe and an inner diameter portion of the lower nozzle plate is formed to be larger than a thickness of the membrane.

5. The hydraulic mount for the vehicle of claim 1 ,
wherein a distance between the horizontal plate and a bottom plate of the lower nozzle plate is formed to be larger than a height of the membrane.

Assignees

• Hyundai Motor Co Ltd
• Kia Motors Corp
• Pyung Hwa Ind

Inventors

• Kim Hyo Seok
• Lee Sang Cheon
• Park Jong Su

Classifications

• F16H57/028

  characterised by means for reducing vibration or noise · CPC title

• F16F13/106

  Design of constituent elastomeric parts, e.g. decoupling valve elements, or of immediate abutments therefor, e.g. cages · CPC title

• F16F13/101

  characterised by buffering features or stoppers · CPC title

• B60K5/1208 Primary

  Resilient supports (B60K5/1241 - B60K5/1291 take precedence) · CPC title

• F16H57/025

  Support of gearboxes, e.g. torque arms, or attachment to other devices · CPC title