Fluid-sealed engine mount

Patent metadata

Field	Value
Publication number	US-11255396-B2
Application number	US-201916696843-A
Country	US
Kind code	B2
Filing date	Nov 26, 2019
Priority date	May 28, 2019
Publication date	Feb 22, 2022
Grant date	Feb 22, 2022

Abstract

A fluid-sealed engine mount may include an insulator integrally formed on an external side of a mount core configured to be coupled to an engine and having a chamber with which fluid for insulation of vibration is sealed; an orifice module mounted below the mount core to divide the chamber into two chambers and having a fluid passage for flow of the fluid; an air chamber provided at a center portion of the orifice module and filled with air; and an elastic membrane mounted above the air chamber at the center portion of the orifice module to seal the air chamber airtightly.

First claim

What is claimed is:

1. A fluid-sealed engine mount apparatus comprising:
a casing plate;
an insulator mounted inside the casing plate and integrally formed on an external side of a mount core configured to be coupled to an engine, wherein the insulator includes a chamber with which fluid for insulation of vibration is sealed;
an orifice module mounted below the mount core to divide the chamber into upper and lower chambers and having a fluid passage for flow of the fluid, wherein the orifice module includes an opening hole formed in an upper center portion of the orifice module and a partition wall surrounding the opening hole, the partition wall protruding a predetermined length from the orifice module;
an air chamber provided at a center portion of the orifice module and filled with air; and
an elastic membrane mounted on the opening hole and positioned above the air chamber and below the upper chamber to seal the air chamber.

2. The fluid-sealed engine mount apparatus of claim 1 ,
wherein the partition wall is formed to surround an upper space in the upper chamber above the membrane in a circumferential direction of the membrane.

3. The fluid-sealed engine mount apparatus of claim 2 ,
wherein the partition wall is mounted adjacent to an inner edge portion of the membrane in the circumferential direction of the membrane.

4. The fluid-sealed engine mount apparatus of claim 1 ,
wherein the orifice module is provided at a center portion of the orifice module with a mounting portion to which an external edge portion of the membrane is fixed, and
wherein the mounting portion is provided at a center portion of the mounting portion with the opening hole formed above the air chamber.

5. The fluid-sealed engine mount apparatus of claim 4 ,
wherein a center portion of the membrane is mounted in the opening hole, and
wherein the center portion of the membrane is pulled and moved upwards when the mount core is moved upwards by vibration of the engine.

6. The fluid-sealed engine mount apparatus of claim 5 ,
wherein the center portion of the membrane is pressed and moved downwards when the mount core is moved downwards by vibration of the engine.

7. The fluid-sealed engine mount apparatus of claim 6 ,
wherein the orifice module is provided at the center portion of the orifice module with a stopper mounted at a predetermined interval below the membrane, and
wherein the stopper stops downward movement of the membrane when the center portion of the membrane moved downwards contacts with the stopper.

8. The fluid-sealed engine mount apparatus of claim 7 ,
wherein the center portion of the membrane is provided at a lower surface of the center portion of the membrane with a plurality of elastic projections protruding from the lower surface of the center portion of the membrane.

9. The fluid-sealed engine mount apparatus of claim 7 ,
wherein an elastic sheet is provided on a top surface of the stopper, and
wherein the elastic sheet prevents the stopper from generating noise when the center portion of the membrane strikes the stopper.

10. The fluid-sealed engine mount apparatus of claim 4 , wherein the orifice module includes:
an upper plate having the mounting portion and the partition wall, and
a lower plate having the air chamber and the fluid passage.

11. The fluid-sealed engine mount apparatus of claim 10 , wherein the upper plate includes an upper hole communicating fluidly with the fluid passage.

12. The fluid-sealed engine mount apparatus of claim 10 ,
wherein the lower chamber is provided between the lower plate of the orifice module and a diaphragm connected to the casing plate.

13. The fluid-sealed engine mount apparatus of claim 10 ,
wherein the upper chamber is provided between the insulator and the upper plate of the orifice module.

14. A fluid-sealed engine mount apparatus comprising:
a casing plate;
an insulator mounted inside the casing plate and integrally formed on an external side of a mount core configured to be coupled to an engine, wherein the insulator includes a chamber with which fluid for insulation of vibration is sealed;
an orifice module mounted below the mount core to divide the chamber into upper and lower chambers and having a fluid passage for flow of the fluid, wherein the orifice module includes an upper plate adjoining the upper chamber and a lower plate coupled to the upper plate and adjoining the lower chamber, wherein the upper plate includes an opening hole, a partition wall, and a mounting portion, the opening hole formed in a center portion of the upper plate, the partition wall surrounding the opening hole and protruding a predetermined height from an upper portion of the upper plate and the mounting portion protruding from the partition wall toward the opening hole;
an air chamber provided at a center portion of the orifice module and filled with air; and
an elastic membrane mounted above the air chamber and below the upper chamber at the center portion of the upper plate to seal the air chamber, wherein the elastic membrane is fixed to the mounting portion.

Assignees

• Hyundai Motor Co Ltd
• Kia Motors Corp

Inventors

• Kim Seung Won
• Kim Hyo Seok

Classifications

• B60K5/1208

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

• B60K5/1291

  Supports comprising stoppers · CPC title

• B60K5/12 Primary

  Arrangement of engine supports · CPC title

• F16F9/0409 Primary

  characterised by the wall structure · CPC title

• F16F2222/126

  using gases · CPC title