US 12,403,872 B2
Hydraulic block for a brake unit of a hydraulic power brake system
Andreas Weh, Sulzberg (DE); Matthias Mayr, Rettenberg (DE); and Stefan Kaserer, Ofterschwang (DE)
Assigned to ROBERT BOSCH GMBH, Stuttgart (DE)
Appl. No. 18/550,434
Filed by Robert Bosch GmbH, Stuttgart (DE)
PCT Filed Apr. 12, 2022, PCT No. PCT/EP2022/059685
§ 371(c)(1), (2) Date Sep. 13, 2023,
PCT Pub. No. WO2022/263041, PCT Pub. Date Dec. 22, 2022.
Claims priority of application No. 10 2021 206 074.9 (DE), filed on Jun. 15, 2021.
Prior Publication US 2024/0157925 A1, May 16, 2024
Int. Cl. B60T 7/04 (2006.01); B60T 8/36 (2006.01); F15B 13/08 (2006.01)
CPC B60T 7/042 (2013.01) [B60T 8/368 (2013.01); F15B 13/0814 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A hydraulic block for a brake unit of a hydraulic power brake system for an automobile, the hydraulic block comprising:
a top side, which is configured for seating a brake fluid container and has connections for the brake fluid container;
a fastening side, which adjoins the top side, is configured for fastening the hydraulic block to a bulkhead of the automobile and into which a master brake cylinder bore leads;
a motor side, which adjoins the top side and the fastening side, into which a power cylinder bore leads and on which an electric motor can be arranged for displacement of a power piston of a power brake pressure generator in the power cylinder bore;
connections for hydraulic wheel brakes; and
a simulator cylinder bore for a pedal travel simulator of the power brake system;
wherein the power cylinder bore and the simulator cylinder bore are incorporated in the hydraulic block between the top side and the master brake cylinder bore, and a second return line in the hydraulic block runs from a receptacle for an outlet valve to one of the connections for the brake fluid container through the simulator cylinder bore.