Fluid-filled engine mounting apparatus

Patent metadata

Field	Value
Publication number	US-10295010-B2
Application number	US-201715832507-A
Country	US
Kind code	B2
Filing date	Dec 5, 2017
Priority date	Oct 18, 2017
Publication date	May 21, 2019
Grant date	May 21, 2019

Abstract

A fluid-filled engine mounting apparatus may include a core provided with a center into which a center bolt is inserted; an insulator with an internal lower portion in which a first fluid chamber is formed and with an upper internal circumferential surface adhered to an external circumferential surface of the core; an upper housing mounted on an upper portion of the insulator; upper and lower orifice plates mounted on an internal circumferential surface of the insulator and are provided with a center hole; a membrane mounted on the center holes between the upper and lower orifice plates; a first case mounted on a lower external circumferential surface of the insulator; a first diaphragm mounted on a lower portion of the insulator that closes the first fluid chamber; and a longitudinal vibration absorbing device provided at an upper portion of the insulator.

First claim

What is claimed is:

1. A fluid-filled engine mounting apparatus comprising:
a core into which a center bolt is inserted;
a insulator provided with an upper internal circumferential surface adhered to an external circumferential surface of the core and with an internal lower portion, wherein a first fluid chamber is formed under the internal lower portion of the insulator;
an upper housing mounted on an upper portion of the insulator;
upper and lower orifice plates that are respectively mounted on a lower internal circumferential surface of the insulator at a lower portion of the first fluid chamber and that are respectively provided with a center hole at a center thereof;
a membrane mounted on the center holes of the upper and lower orifice plates between the upper and lower orifice plates;
a first case mounted on a lower external circumferential surface of the insulator;
a first diaphragm mounted on the internal lower portion of the insulator and that closes the first fluid chamber; and
a longitudinal vibration absorbing device provided at the upper portion of the insulator to absorb a longitudinal load and vibration of a vehicle.

2. The fluid-filled engine mounting apparatus of claim 1 , wherein
the longitudinal vibration absorbing device includes:
a protrusion that integrally protrudes with the upper portion of the insulator, in which a second fluid chamber is formed, and that includes an open side;
a second case that is inserted into the protrusion and of which internal and external circumferential surfaces are adhered to the insulator;
a first nozzle that is mounted on the open side of the protrusion in the second case and that is provided with a plurality of first through holes;
a second nozzle that is combined with the first nozzle and that is provided with a plurality of second through holes;
a decoupler interposed between the first nozzle and the second nozzle;
a second diaphragm that is mounted on the second nozzle in a direction opposite to the decoupler and that closes the second fluid chamber; and
a fixing plate mounted on the second case at an outside of the second diaphragm configured to fix the second diaphragm to the second nozzle.

3. The fluid-filled engine mounting apparatus of claim 2 , wherein
the decoupler partitions the second fluid chamber into a front chamber and a rear chamber.

4. The fluid-filled engine mounting apparatus of claim 3 , wherein
when a load and vibration of a predetermined displacement occurs in a longitudinal direction of the vehicle, the decoupler forms a gap between the first nozzle and the second nozzle wherein a working fluid filled in the second fluid chamber flows into the front or rear chamber through the gap.

5. The fluid-filled engine mounting apparatus of claim 3 , wherein
a reduction chamber is formed along circumferences of internal portions of the first nozzle and the second nozzle combined to each other.

6. The fluid-filled engine mounting apparatus of claim 5 , wherein
the reduction chamber communicates with the rear chamber through a connection hole formed in the first nozzle.

7. The fluid-filled engine mounting apparatus of claim 6 , wherein
when a load and vibration of a predetermined displacement occurs in the longitudinal direction of the vehicle, a working fluid of the rear chamber flows into the reduction chamber through the connection hole.

8. The fluid-filled engine mounting apparatus of claim 2 , wherein
the decoupler includes a rubber material.

9. The fluid-filled engine mounting apparatus of claim 2 , wherein
the longitudinal vibration absorbing device includes a protective case that is mounted to surround an outside of the second case.

10. The fluid-filled engine mounting apparatus of claim 1 , wherein
a first side of the upper housing corresponding to the longitudinal vibration absorbing device is formed to have an open cap shape.

11. The fluid-filled engine mounting apparatus of claim 1 , wherein
a lower housing into which a lower portion of the upper housing is inserted is mounted on an external circumferential surface of the first case.

12. The fluid-filled engine mounting apparatus of claim 11 , wherein
a first side of the lower housing corresponding to the longitudinal vibration absorbing device is formed to have an open pipe shape.

13. The fluid-filled engine mounting apparatus of claim 11 , wherein
at least a mounting bracket is mounted on the upper housing and an external circumferential surface of the upper housing.

14. The fluid-filled engine mounting apparatus of claim 1 , wherein
the center bolt is connected to an engine through a connection bracket.

15. The fluid-filled engine mounting apparatus of claim 1 , wherein
a ring stopper is mounted on the upper housing.

16. The fluid-filled engine mounting apparatus of claim 1 , wherein
the longitudinal vibration absorbing device is disposed toward a front of the vehicle.

17. The fluid-filled engine mounting apparatus of claim 1 , wherein
a ring plate is mounted on the first case wherein the first diaphragm is fixed to a lower portion of the lower orifice plate.

Assignees

• Hyundai Motor Co Ltd
• Kia Motors Corp

Inventors

• N Sreenivasan
• Oh Man Seok
• Han Sang Hoon
• Raghavendar P
• Teja B V Krishna
• Reddy S Chaitanya Kumar

Classifications

• F16F13/22

  characterised by comprising also a dynamic damper (dampers using inertia effect per se F16F7/10) · CPC title

• F16F13/24 Primary

  the central part of the unit being supported by one element and both extremities of the unit being supported by a single other element, i.e. double acting mounting · CPC title

• B60K5/1266

  Supports comprising friction damping devices (B60K5/125, B60K5/1283 take precedence) · CPC title

• F16F13/107 Primary

  Passage design between working chambers · CPC title

• B60K5/12 Primary

  Arrangement of engine supports · CPC title