Tandem brake master cylinder
US4472941A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 15, 1981 |
| Grant date | Sep 25, 1984 |
| Priority date | — |
| Expiry date | Jun 15, 2001 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60T11/20
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A tandem brake master cylinder comprising a longitudinal bore having two pressure chambers therein each associated with a different one of two pressure pistons, each of the two pressure chambers and its associated one of the two pressure pistons are associated with a different one of two brake circuits. Two parallel inlet sockets are provided in the housing of the tandem master cylinder, each of the two inlet sockets connecting a different one of the two pressure chambers to a brake fluid reservoir. A transverse bore is also provided in the housing of the tandem master cylinder containing a pressure control device for one of the two brake circuits, the control device including a stepped piston and a valve controlled by the stepped piston. The transverse bore intersects a plane containing the axes of the two inlet sockets in an approximate perpendicular manner between the two inlet sockets and beween the longitudinal bore and the reservoir. This construction provides a space-saving arrangement which enables ease of assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.