High pressure accumulator of brake system

Patent metadata

Field	Value
Publication number	US-9522660-B2
Application number	US-201514789989-A
Country	US
Kind code	B2
Filing date	Jul 2, 2015
Priority date	Jul 2, 2014
Publication date	Dec 20, 2016
Grant date	Dec 20, 2016

Abstract

Disclosed herein is a high pressure accumulator of a brake system capable of attenuating pressure pulsation of oil discharged from a pump. The present invention is directed to a high pressure accumulator a brake system in which a damping chamber disposed to attenuate pressure pulsation is optionally partitioned into a plurality of layers to change characteristics of a flow of brake oil so that pressure pulsation can be efficiently reduced. Therefore, it is an aspect of the present invention to provide a high pressure accumulator of a brake system in which an orifice part is integrally formed so that a processing time for installing an orifice separately and an assembling time therefor can be reduced.

First claim

What is claimed is:

1. A high pressure accumulator of a brake system disposed on a modulator block to reduce pressure pulsation of brake oil pressed by driving of a pump and pumped, the high pressure accumulator comprising:
a closing member that closes one end of a bore having one opened end and is in communication with an inport through which the brake oil is introduced and an outport through which the brake oil is discharged; and
a damping housing that is installed in the bore and has a damping chamber formed therein in communication with the inport and the outport,
wherein an orifice part is formed integrally with the damping housing in a portion in which the brake oil is discharged through the outport, and
a damping member is installed in the damping housing and partitions the damping chamber into a plurality of damping chambers so that the partitioned plurality of damping chambers is in communication with each other, and
the damping member comprises a body part having one opened side to partition the damping chamber into the plurality of damping chambers and a connection hole formed in a bottom surface of the body part in communication with the adjacent damping chamber partitioned by the body part, and
an inclined part is formed on the bottom surface of the body part so that the brake oil easily flows into the adjacent damping chamber, and the connection hole is formed in distal ends of the inclined part,
wherein a plurality of damping members is provided, the plurality of damping member being stacked and disposed in series, and
wherein the plurality of damping members has diameters at which they correspond to each other, and are installed in the damping housing, and one end of one of the damping members is pressed in and coupled to the closing member.

2. The high pressure accumulator of claim 1 , wherein the orifice part comprises an insertion part inserted into and coupled to the outport and an orifice formed in the insertion part so that the damping chamber and the outport are in communication with each other.

3. The high pressure accumulator of claim 1 , wherein a stepped part for supporting the damping member is formed in the damping housing.

4. The high pressure accumulator of claim 1 , wherein an introduction hole that is in communication with the inport is formed in the damping member disposed in a position corresponding to the inport.

5. The high pressure accumulator of claim 1 , wherein the plurality of damping chambers, each of which is partitioned into the plurality of damping chambers by the damping members, are optionally formed to have the same heights according to heights of the damping members or are optionally formed to have different heights.

6. The high pressure accumulator of claim 1 , wherein a coupling jaw corresponding to an inner diameter of each of the damping members is formed at an inside of the closing member.

Assignees

• Mando Corp

Inventors

• Kim Eun-Mi

Classifications

• B60T8/368

  combined with other mechanical components, e.g. pump units, master cylinders · CPC title

• B60T8/4068 Primary

  the additional fluid circuit comprising means for attenuating pressure pulsations · CPC title

• B60T13/148

  Arrangements for pressure supply · CPC title

• B60T13/14 Primary

  using accumulators or reservoirs {fed by pumps} · CPC title

• B60T8/34

  having a fluid pressure regulator responsive to a speed condition · CPC title