Bypass flow path open/close type active engine mount device using air chamber

Patent metadata

Field	Value
Publication number	US-9676264-B2
Application number	US-201514919654-A
Country	US
Kind code	B2
Filing date	Oct 21, 2015
Priority date	Oct 21, 2014
Publication date	Jun 13, 2017
Grant date	Jun 13, 2017

Abstract

An active engine mount has a liquid chamber for keeping liquid in a housing. The active engine mount includes a separation plate that is disposed in the liquid chamber, has a space at its center, and divides the liquid chamber into an upper liquid chamber and a lower liquid chamber. At least one primary flow path connects the upper liquid chamber and the lower liquid chamber. An orifice plate is disposed under the space at the center of the separation plate and has at least one bypass flow path connected with the lower liquid chamber. An air chamber is disposed between the orifice plate and the space at the center of the separation plate, and is configured to open or close the at least one bypass flow path by changing its size.

First claim

What is claimed is:

1. An active engine mount that has a liquid chamber for keeping liquid in a housing, the active engine mount comprising:
a separation plate that is disposed in the liquid chamber, has a space at its center, and divides the liquid chamber into an upper liquid chamber and a lower liquid chamber;
at least one primary flow path that connects the upper liquid chamber and the lower liquid chamber;
an orifice plate that is disposed under the space at the center of the separation plate and has at least one bypass flow path connected with the lower liquid chamber; and
an air chamber that is disposed between the orifice plate and the space at the center of the separation plate and is configured to open or close the at least one bypass flow path by changing its size; and
a piston connected to a bottom of the air chamber and configured to move towards and away from the air chamber in an up and down direction;
wherein the air chamber is contracted or expanded by pneumatic pressure adjusted by towards the upper and lower sides movement of the piston.

2. The active engine mount of claim 1 , wherein the piston is configured to move towards and away from the air chamber in an up and down direction using a solenoid valve.

3. The active engine mount of claim 1 , wherein the piston is connected to a piston return spring.

4. The active engine mount of claim 3 , wherein the piston return spring comprises rubber.

5. The active engine mount of claim 1 , wherein the at least one primary flow path is two or more primary flow paths, and the at least one bypass flow path is two or more bypass flow paths.

Assignees

• Hyundai Motor Co Ltd

Inventors

• Kim Seung-Won

Classifications

• F16F13/18

  characterised by the location or the shape of the equilibration chamber, e.g. the equilibration chamber, surrounding the plastics spring or being annular (F16F13/1418 takes precedence) · CPC title

• F16F15/06

  with metal springs (with rubber springs also F16F15/08) · CPC title

• B60K5/12 Primary

  Arrangement of engine supports · CPC title

• F16F15/08

  with rubber springs {(grommet- or bushing-type resilient mountings F16F1/3732, F16F1/38); with springs made of rubber and metal (arrangement of internal-combustion or jet-propulsion units B60K5/12; mounting of propulsion plants on vessels B63H21/30; mounting of vehicle drivers' cabs B62D33/0604)} · CPC title

• B60K5/1283

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