Pump housing arrangement of a hydraulic assembly of a vehicle brake system

Patent metadata

Field	Value
Publication number	US-9802595-B2
Application number	US-201514693231-A
Country	US
Kind code	B2
Filing date	Apr 22, 2015
Priority date	Apr 22, 2014
Publication date	Oct 31, 2017
Grant date	Oct 31, 2017

Abstract

A pump housing arrangement of a hydraulic assembly for a vehicle brake system includes a pump housing. At least one pump is arranged in the pump housing, and is configured to pump brake fluid for the vehicle brake system. A master brake cylinder for the vehicle brake system is also arranged in the pump housing.

First claim

What is claimed is:

1. A pump housing arrangement of a hydraulic assembly for a vehicle braking system, comprising:
a pump housing;
at least one brake conduit section arranged in the pump housing, the at least one brake conduit section being configured to connect to at least one wheel brake cylinder;
at least one pump arranged in the pump housing, and configured to pump brake fluid for the vehicle brake system; and
a master brake cylinder for the vehicle brake system, which is arranged in the pump housing,
wherein the pump housing defines at least one port that leads directly to the master cylinder and that is configured to connect the pump housing to an expansion tank such that the expansion tank is connected in a brake fluid-connecting fashion directly to the master brake cylinder,
wherein the pump housing defines at least one additional port that is fluidly connected directly to the at least one brake conduit section, the at least one additional port being configured to connect the pump housing directly to the expansion tank such that the expansion tank is connected in a brake fluid-connecting fashion to the at least one brake conduit section via the at least one additional port,
wherein the at least one additional port is spaced apart from the at least one port, and
further comprising:
a fastening element that is arranged on the pump housing and configured to positionally fixedly fasten the pump housing to the associated vehicle and to fasten the master brake cylinder within the pump housing; and
at least two screws,
wherein:
the fastening element comprises a flat plate having at least two fastening holes configured to guide the at least two screws; and
the at least two screws are received in the at least two fastening holes such that one screw fastens the fastening element to a front face of the pump housing, and another screw is configured to fasten the fastening element to the associated vehicle.

2. The pump housing arrangement according to claim 1 , wherein the fastening element defines a piston rod opening configured to enable a leadthrough of a piston rod coupled to a brake pedal to pass therethrough and into the master brake cylinder.

3. The pump housing arrangement according to claim 1 , wherein the pump housing defines at least one recess that enables access to the fastening element for fastening the pump housing to the associated vehicle.

4. The pump housing arrangement according to claim 1 , the pump housing further including:
a first housing section; and
a second housing section positioned adjacent to the first housing section;
wherein:
the at least one pump is arranged in the first housing section;
the master brake cylinder is arranged in the second housing section; and
the first housing section has a thickness that is smaller than a thickness of the second housing section.

5. The pump housing arrangement according to claim 4 , further comprising a drive motor that is arranged in the first housing section, and that is configured to drive the at least one pump.

Assignees

• Bosch Gmbh Robert

Inventors

• Kratzer Dietmar

Classifications

• B60T7/042

  by electrical means, e.g. using travel or force sensors · CPC title

• B60T13/686

  in hydraulic systems or parts thereof · CPC title

• B60T17/02 Primary

  Arrangements of pumps or compressors, or control devices therefor · CPC title

• B60T13/146

  Part of the system directly actuated by booster pressure · CPC title

• B60T8/368

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