Master brake cylinder, braking system
US11084475B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 5, 2017 |
| Grant date | Aug 10, 2021 |
| Priority date | — |
| Expiry date | Dec 15, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60T13/145
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A master brake cylinder is described for a brake system of a motor vehicle as having a hydraulic cylinder that has a plurality of hydraulic connections, in which at least one hydraulic piston is mounted so as to be displaceable axially in a direction of actuation and in a relief direction, the hydraulic piston being displaceable against the force of a spring element in the direction of actuation, the hydraulic piston having at least one lateral wall opening that, in at least one sliding position, opens into an inner chamber of the hydraulic cylinder. It is provided that the lateral wall opening is assigned an elastically deformable sealing ring that on its inner side is fastened on the hydraulic piston and on its outer side is pre-loaded against the hydraulic cylinder by its inherent elasticity and is shaped such that when the hydraulic piston is displaced in the direction of actuation it detaches from the hydraulic cylinder, and when the hydraulic piston is displaced in the relief direction it bears on the hydraulic cylinder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.