Hydraulic Assembly for Modulating a Brake Pressure of a Wheel Brake, which can be coupled fluidically to the Hydraulic Assembly, of a Motor Vehicle Brake System with Electronic Slip Control

Patent metadata

Field	Value
Publication number	US-2018264484-A1
Application number	US-201815885586-A
Country	US
Kind code	A1
Filing date	Jan 31, 2018
Priority date	Mar 17, 2017
Publication date	Sep 20, 2018
Grant date	—

Abstract

A hydraulic assembly for modulating a brake pressure of a wheel brake of a motor vehicle brake system with electronic slip control includes a housing block through which a brake fluid is configured to flow and which is equipped with an electronically controllable member for setting the brake pressure. The hydraulic assembly also includes at least one particle-filtering device that is fitted with the housing block and forms a magnetic field. Using the particle-filtering device, particles of ferromagnetic material are configured to be filtered out of the brake fluid without reducing a cross-section of a fluid-conducting channel and thereby choking the throughflow of the housing block or hindering the fluid throughflow.

First claim

What is claimed is:

1 . A hydraulic assembly for modulating a brake pressure of a wheel brake of a motor vehicle brake system with electronic slip control, the wheel brake configured to be coupled fluidically to the hydraulic assembly, the hydraulic assembly comprising:
a housing block through which a brake fluid is configured to flow and which is equipped with an electronically controllable device configured to set the brake pressure; and a particle-filtering device configured to filter particles out of the brake fluid, the particle-filtering device forming a magnetic field.

2 . The hydraulic assembly according to claim 1 , wherein the housing block defines pressure medium ports and channels that conduct brake fluid, and wherein at least one of the pressure medium ports or the channels is arranged inside the magnetic field of the particle-filtering device.

3 . The hydraulic assembly according to claim 2 , wherein the particle-filtering device is configured in annular form, and wherein at least one of the channels that conduct brake fluid runs through a ring opening.

4 . The hydraulic assembly according to claim 3 , wherein a wall limiting the ring opening in a region of the particle-filtering device is identical to a wall limiting the channel.

5 . The hydraulic assembly according to claim 1 , wherein the particle-filtering device comprises a permanent magnet.

6 . The hydraulic assembly according to claim 1 , wherein the particle-filtering device is received in a portion of wider inner diameter of a channel of the housing block and is anchored therein by one or more of force, form-fit, and material bonding.

7 . The hydraulic assembly according to claim 1 , wherein the particle-filtering device is arranged on a fluid-connection element that is configured to be attached to the hydraulic assembly.

8 . The hydraulic assembly according to claim 1 , wherein the particle-filtering device is a fluid-connection element formed of a magnetized ferromagnetic material.

9 . The hydraulic assembly according to claim 1 , wherein the particle-filtering device is a single component arranged on the housing block separately from the electronically controllable device.

10 . The hydraulic assembly according to claim 1 , wherein the particle-filtering device is combined with the electronically controllable device into one component that is configured to be anchored on the housing block.

11 . The hydraulic assembly according to claim 6 , wherein the particle-filtering device is anchored in the portion of wider inner diameter of the channel by being pressed or caulked therein.

Assignees

• Bosch Gmbh Robert

Inventors

• Gaertner Oliver

Classifications

• B03C1/288

  disposed at the outer circumference of a recipient · CPC title

• F15B2211/655

  Methods of contamination control, i.e. methods of control of the cleanliness of circuit components or of the pressure fluid · CPC title

• F15B13/0814

  Monoblock manifolds · CPC title

• B60T8/3615

  Electromagnetic valves specially adapted for anti-lock brake and traction control systems (electromagnetic valves in general F16K31/06) · CPC title

• F15B13/0885

  using valves combined with other components · CPC title