# US 2014/0151528 A1 · Dynamic damper for vehicle

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- Number: US 2014/0151528 A1
- Document ID: US20140151528A1
- Status: Published application
- Kind: A1
- Application number: 13/886,513
- Filed: 2013-05-03
- Published: 2014-06-05
- Earliest claimed: 2012-12-05
- Assignees: Hyundai Motor Company
- Applicants: Hyundai Motor Company
- Inventors: Yong-Bin Park
- Web page: https://patentgrep.com/patent/US20140151528A1

## CPC

- F16F 3/093: the springs being of different materials, e.g. having different types of rubber {(F16F1/3835 takes precedence)}
- F16F 7/108: on plastics springs
- F16F 15/08: 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)}
- F16M 13/02: for supporting on, or attaching to, an object, e.g. tree, gate, window-frame, cycle
- F16F: SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16M: FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS

## Abstract

A dynamic damper mounted within a vehicle is capable of tuning a resonance frequency for each direction and includes a housing formed by a vertical plate connected to a bottom plate. A first rubber having elasticity is seated on the bottom plate and a mass is seated on the first rubber in a vertical direction and is spaced apart from the vertical plate. A second rubber having elasticity is mounted between the mass and the vertical plate.

## Claims

### Claim 1

A dynamic damper mounted within a vehicle, the dynamic damper comprising:
a housing formed by a vertical plate connected to a bottom plate;
a first rubber seated on the bottom plate;
a mass seated on the first rubber in a vertical direction and spaced apart from the vertical plate; and
a second rubber mounted between the mass and the vertical plate.

### Claim 2 (depends on 1)

The dynamic damper of claim 1, wherein the first rubber and the second rubber are manufactured with materials having different elastic properties.

### Claim 3 (depends on 1)

The dynamic damper of claim 1, further comprising:
a third rubber having an elastic property different from that of the second rubber, wherein the third rubber is interdisposed between the mass and the vertical plate.

### Claim 4 (depends on 3)

The dynamic damper of claim 3, wherein the mass and the vertical plate are cylindrical.

### Claim 5 (depends on 3)

The dynamic damper of claim 3, wherein the mass has a cylindrical shape, and a horizontal cross section of the vertical plate is formed in a semicircular shape or a “C” shape to expose a lateral surface of the mass.

### Claim 6 (depends on 1)

The dynamic damper of claim 1, wherein the dynamic damper is mounted to an engine support bracket or a transmission mount.

### Claim 7

A damper, comprising:
a cylindrical housing with one closed end, one open end, and a vertical wall;
a first rubber seated on an inner surface of the closed end of the cylindrical housing;
a mass seated on a top of the first rubber; and
a second rubber interdisposed between at least a portion of the mass and the vertical plate.

### Claim 8 (depends on 7)

The damper of claim 7, wherein the first rubber and the second rubber are manufactured with materials having different elastic properties.

### Claim 9 (depends on 7)

The damper of claim 7, further comprising:
a third rubber having an elastic property different from that of the second rubber, wherein the third rubber is interdisposed between the mass and the vertical plate at a different portion than the second rubber.

### Claim 10 (depends on 7)

The damper of claim 7, wherein the mass is cylindrical.

### Claim 11 (depends on 7)

The damper of claim 7, wherein the damper is mounted to an engine support bracket or a transmission mount.