Active engine mount for vehicle

Patent metadata

Field	Value
Publication number	US-9605727-B2
Application number	US-201514870907-A
Country	US
Kind code	B2
Filing date	Sep 30, 2015
Priority date	Nov 18, 2014
Publication date	Mar 28, 2017
Grant date	Mar 28, 2017

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;
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,
a hole which is formed at a central portion of the orifice circular plate;
a first fluid entrance hole which is formed at an end of the edge of the orifice to communicate with the lower liquid chamber and a second fluid entrance hole which is formed at an opposite end of the orifice at the central portion of the orifice circular plate to communicate with the upper liquid chamber; and
a switching valve is configured to selectively open or close the hole in a position to cover the hole at the central portion of the diaphragm and to compressively deform by pressure of the fluid in the upper liquid chamber.

2. 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.

3. The active engine mount of claim 2 , wherein the electromagnet has a spring therein to elastically support the plunger.

4. 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.

5. The active engine mount of claim 1 , 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.

6. 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.

7. 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;
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;
a hole which is formed at a central portion of the orifice circular plate;
a first fluid entrance hole which is formed at an end of the edge of the orifice to communicate with the lower liquid chamber and a second fluid entrance hole which is formed at an opposite end of the orifice at the central portion of the orifice circular plate to communicate with the upper liquid chamber;
a switching valve which is configured to selectively open or close the hole in a position to cover the hole at the central portion of the diaphragm and to compressively deform by pressure of the fluid in the upper liquid chamber; and
a fork which has a wall standing along an edge of the fork, the wall being coupled to a bottom surface of the switching valve at the central portion of the diaphragm; and
an air chamber sealed by the bottom surface of the switching valve, the fork and the wall between the fork and the switching valve.

Assignees

• Hyundai Motor Co Ltd

Inventors

• Kim Seung Won

Classifications

• F16F13/26

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

• 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

• 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

• F16F15/16

  using a fluid {or pasty material}(F16F9/53, F16F15/13157 take precedence; devices connecting input and output members F16D) · CPC title