# US 9,517,757 B2 · Hydraulic block for a hydraulic assembly of a slip-regulated, hydraulic vehicle brake system, and a hydraulic vehicle brake system

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- Number: US 9,517,757 B2
- Document ID: US9517757B2
- Status: Granted
- Kind: B2
- Application number: 14/648,596
- Filed: 2013-10-07
- Published: 2015-11-12
- Granted: 2016-12-13
- Earliest claimed: 2012-11-30
- Assignees: Robert Bosch GmbH
- Applicants: Robert Bosch GmbH
- Inventors: Michael Schlitzkus; Juergen Tandler; Matthias Mayr; Andreas Weh
- Web page: https://patentgrep.com/patent/US9517757B2

## CPC

- B60T 8/368: {combined with other mechanical components, e.g. pump units, master cylinders}
- B60T 8/4872: {pump-back systems}
- Y10T 137/1842: Ambient condition change responsive
- B60T: VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL (electrodynamic brake systems for vehicle, in general B60L; brakes per se, i.e. devices where braking effect occurs, including ultimate brake actuators, F16D); ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

A hydraulic block for a hydraulic assembly of a slip-regulated, hydraulic vehicle brake system, comprises a first plurality of receivers aligned in a first row that are each configured to fluidly connect to a respective brake pressure, and a second plurality of receivers aligned in a parallel second row that are each configured to fluidly connect to a respective brake pressure reduction valve. The second row is spaced from the first row in a first direction. The hydraulic block further comprises a first further receiver that fluidly connects to a brake master cylinder pressure sensor. The first further receiver is located perpendicularly offset from the first row in a second direction opposite the first direction and within a plane extending between two of the first plurality of receivers and between two of the second plurality of receivers and that is outside of a center plane defined by the hydraulic block.

## Claims

### Claim 1

A hydraulic block for a hydraulic assembly of a slip-regulated, hydraulic vehicle brake system, comprising:
a first plurality of receivers each configured to fluidly connect to a respective brake pressure build-up valve of the hydraulic vehicle brake system, each of the first plurality of receivers aligned next to each other in a first row;
a second plurality of receivers each configured to fluidly connect to a respective brake pressure reduction valve of the hydraulic vehicle brake system, each of the second plurality of receivers aligned next to each other in a second row parallel to the first row and spaced from the first row in a first direction; and
a first further receiver configured to fluidly connect to a brake master cylinder pressure sensor, the first further receiver located perpendicularly offset from the first row in a second direction opposite the first direction and within a plane that extends orthogonal to the first row between two of the first plurality of receivers and between two of the second plurality of receivers and that is outside of a center plane of the hydraulic block that is orthogonal to the first row.

### Claim 2 (depends on 1)

The hydraulic block as claimed in claim 1, further comprising:
a port configured to fluidly connect to a brake master cylinder and defining an outer circumferential casing surface,
wherein an imaginary extension of the outer circumferential casing surface casing surface defines a cylindrical region extending through the hydraulic block, and the first further receiver is located in the cylindrical region.

### Claim 3 (depends on 2)

The hydraulic block as claimed in claim 2, wherein the first further receiver is defined in a first side of the hydraulic block and the port is defined in a second opposite side of the hydraulic block.

### Claim 4 (depends on 1)

The hydraulic block as claimed in claim 1, further comprising:
a second further receiver and a third further receiver each configured to fluidly connect to at least one of a shut-off valve and an intake valve, the second further receiver and the third further receiver aligned next to each other in a third row parallel to the first row and the second row,
wherein the second further receiver and the third further receiver are fluidly connected via a transverse bore with a connecting line which runs outside the center plane of the hydraulic block between two of the first plurality of receivers and between two of the second plurality of receivers, and
wherein the second further receiver and the third further receiver fluidly communicate with a port that is configured to fluidly connect to a brake master cylinder.

### Claim 5

A hydraulic block for a hydraulic assembly of a slip-regulated, hydraulic vehicle brake system, comprising:
a first plurality of receivers each configured to fluidly connect to a respective brake pressure build-up valve of the hydraulic vehicle brake system, each of the first plurality of receivers aligned next to each other in a first row;
a second plurality of receivers each configured to fluidly connect to a respective brake pressure reduction valve of the hydraulic vehicle brake system, each of the second plurality of receivers aligned next to each other in a second row parallel to the first row and spaced from the first row in a first direction;
a first further receiver configured to fluidly connect to a brake master cylinder pressure sensor, the first further receiver located, perpendicularly offset from the first row in a second direction opposite the first direction and within a plane that extends between two of the first plurality of receivers and between two of the second plurality of receivers and that is outside of a center plane defined by the hydraulic block; and
a second further receiver configured to fluidly connect to a pressure sensor for a first brake circuit of the vehicle brake system, the second further receiver located in the center plane of the hydraulic block.

### Claim 6 (depends on 5)

The hydraulic block as claimed in claim 5, wherein the second further receiver is located outside of a space defined between the first row and the second row.

### Claim 7 (depends on 5)

The hydraulic block as claimed in claim 5, wherein the second further receiver is located between the first row and the second row.

### Claim 8 (depends on 5)

The hydraulic block as claimed in claim 5, further comprising:
a third further receiver configured to fluidly connect to a pressure sensor for a second brake circuit of the vehicle brake system,
wherein the second further receiver and the third further receiver are located on opposite sides of the hydraulic block.

### Claim 9 (depends on 5)

The hydraulic block as claimed in claim 5, further comprising:
a fourth further receiver configured to fluidly communicate with a damper chamber,
wherein the second further receiver fluidly communicates with the fourth further receiver.

### Claim 10

A hydraulic vehicle brake system, comprising:
a first brake circuit;
a second brake circuit;
a first shut-off valve positioned in the first brake circuit;
a second shut-off valve positioned in the second brake circuit;
a first brake pressure build-up valve positioned in the first brake circuit;
a second brake pressure build-up valve positioned in the second brake circuit;
a first brake pressure reduction valve positioned in the first brake circuit;
a second brake pressure reduction valve positioned in the second brake circuit;
a plurality of wheel brakes;
a brake master cylinder, wherein at least one of the plurality of wheel brakes is fluidly connected via the first shut-off valve and the first brake pressure build-up valve to the brake master cylinder, and at least one other of the plurality of wheel brakes is fluidly connected via the second shut-off valve and the second brake pressure build-up valve to the brake master cylinder;
a first pressure sensor configured to sense a pressure of the brake master cylinder; and
a hydraulic block comprising:
a first receiver fluidly connected to the first brake pressure build-up valve;
a second receiver fluidly connected to the second brake pressure build-up valve, the first receiver and the second receiver being aligned next to each other in a first row;
a third receiver fluidly connected to the first brake pressure reduction valve;
a fourth receiver fluidly connected to the second brake pressure reduction valve, the third and fourth receivers being aligned next to each other in a second row parallel to the first row and spaced from the first row in a first direction; and
a first further receiver fluidly connected to the first pressure sensor, the first further receiver located perpendicularly offset from the first row in a second direction opposite the first direction and within a plane that extends orthogonal to the first row between the first and second receivers and between the third and fourth receivers and that is outside of a center plane of the hydraulic block that is orthogonal to the first row.

### Claim 11 (depends on 10)

The hydraulic vehicle brake system as claimed in claim 10, wherein:
the hydraulic block further comprises a port fluidly connected to the brake master cylinder, the port defining an outer circumferential casing surface; and
an imaginary extension of the outer circumferential casing surface casing surface defines a cylindrical region extending through the hydraulic block, and the first further receiver is located in the cylindrical region.

### Claim 12 (depends on 11)

The hydraulic vehicle brake system as claimed in claim 11, wherein the first further receiver is defined in a first side of the hydraulic block and the port is defined in a second opposite side of the hydraulic block.

### Claim 13 (depends on 10)

The hydraulic vehicle brake system as claimed in claim 10, wherein:
the hydraulic block further comprises a fifth receiver fluidly connected to the first shut-off valve and a sixth receiver fluidly connected to the second shut-off valve, the fifth receiver and the sixth receiver being aligned next to each other in a third row parallel to the first row and the second row;
the second further receiver and the third further receiver are fluidly connected via a transverse bore with a connecting line which runs outside the center plane of the hydraulic block between the first and second receivers and between the third and fourth receivers; and
the hydraulic block further comprises a port fluidly connected to the brake master cylinder, the fifth receiver and the sixth receiver being in fluid communication with the port.

### Claim 14 (depends on 10)

The hydraulic vehicle brake system as claimed in claim 10, further comprising:
a second pressure sensor positioned hydraulically between the first shut-off valve and the first brake pressure build-up valve in the first brake circuit,
wherein the hydraulic block further comprises a second further receiver configured to fluidly connect to the second pressure sensor, the second further receiver located in the center plane of the hydraulic block.

### Claim 15 (depends on 14)

The hydraulic vehicle brake system as claimed in claim 14, wherein the second further receiver is located outside of a space defined between the first row and the second row.

### Claim 16 (depends on 14)

The hydraulic vehicle brake system as claimed in claim 14, wherein the second further receiver is located between the first row and the second row.

### Claim 17 (depends on 14)

The hydraulic vehicle brake system as claimed in claim 14, further comprising:
a third pressure sensor positioned hydraulically between the second shut-off valve and the second brake pressure build-up valve in the second brake circuit,
wherein the hydraulic block further comprises a third further receiver fluidly connected to the third pressure sensor, the second further receiver and the third further receiver being located on opposite sides of the hydraulic block.

### Claim 18 (depends on 14)

The hydraulic vehicle brake system as claimed in claim 14, further comprising:
a damper chamber positioned in the first brake circuit,
wherein the hydraulic block further comprises a fourth further receiver in fluid communication with the damper chamber and with the second further receiver.
