Active engine mount for vehicle

Patent metadata

Field	Value
Publication number	US-2016138671-A1
Application number	US-201514870907-A
Country	US
Kind code	A1
Filing date	Sep 30, 2015
Priority date	Nov 18, 2014
Publication date	May 19, 2016
Grant date	—

Abstract

An active engine mount for a vehicle includes an upper body which has a main rubber and an upper liquid chamber, and a lower body which is coupled to a lower portion of the upper body. An orifice circular plate divides an interior of the upper and lower bodies into the upper liquid chamber and a lower liquid chamber inside the upper and lower bodies, and has an orifice through which a fluid flows between the upper and lower liquid chambers. A diaphragm is installed below the orifice circular plate inside the upper and lower bodies, and forms the lower liquid chamber. A semi-active mount is in contact with a central portion of the diaphragm by a plunger inside the lower body, and operates by an electromagnet.

First claim

What is claimed is:

1 . An active engine mount for a vehicle, comprising:
an upper body which has a main rubber and an upper liquid chamber; a lower body which is coupled to a lower portion of the upper body; an orifice circular plate which divides an interior of the upper and lower bodies into the upper liquid chamber and a lower liquid chamber inside the upper and lower bodies and which has an orifice through which a fluid flows between the upper and lower liquid chambers; a diaphragm which is installed below the orifice circular plate inside the upper and lower bodies and which forms the lower liquid chamber; and a semi-active mount which is in contact with a central portion of the diaphragm by a plunger inside the lower body and which operates by an electromagnet.

2 . The active engine mount of claim 1 , further comprising:
a switching valve which covers a hole formed at a central portion of the orifice circular plate at the central portion of the diaphragm and which compressively deforms by pressure of the fluid in the upper liquid chamber.

3 . The active engine mount of claim 1 , further comprising:
a fork which is coupled to a bottom surface of a switching valve at the central portion of the diaphragm and which forms an air chamber between the fork and the switching valve.

4 . The active engine mount of claim 2 , wherein the switching valve and the fork are coupled to an upper end of the plunger of the semi-active mount, and open and close the hole formed in the orifice circular plate while moving upward and downward when the semi-active mount operates.

5 . The active engine mount of claim 1 , wherein the semi-active mount includes a housing formed at a central portion of the lower body, and
the electromagnet is disposed in the housing.

6 . The active engine mount of claim 5 , wherein the electromagnet has a spring therein to elastically support the plunger.

7 . The active engine mount of claim 1 , wherein the orifice circular plate has a ring-shaped vibratory plate on the upper surface thereof to cover an edge of the orifice by the ring-shaped vibratory plate.

8 . The active engine mount of claim 7 , wherein the orifice has a fluid entrance hole, with which the lower liquid chamber communicates, at an end of the edge thereof, and
a central portion of the orifice communicates with the upper liquid chamber.

Assignees

• Hyundai Motor Co Ltd

Inventors

• Kim Seung Won

Classifications

• F16F13/10

  the wall being at least in part formed by a flexible membrane or the like (F16F13/14 - F16F13/18 take precedence) · CPC title

• B60K5/12 Primary

  Arrangement of engine supports · CPC title

• F16F13/26

  characterised by adjusting or regulating devices responsive to exterior conditions {(F16F13/101 takes precedence)} · CPC title

• F16F13/22 Primary

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

• B60K5/1283 Primary

  Adjustable supports, e.g. the mounting or the characteristics being adjustable · CPC title