Two-circuit pressure control unit
US4332423A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 18, 1980 |
| Grant date | Jun 1, 1982 |
| Priority date | — |
| Expiry date | Jun 18, 2000 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60T8/185
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
Twin brake force control units, for a two circuit brake system are known in which the initial control force is changeable dependent on the vehicle load. The control force is distributed to the control pistons by a lever. Due to tolerances and erosion of the individual elements considerable differences in pressure in both brake circuits may occur. This is overcome according to the present invention by providing a lever which directly operates upon both control pistons and which is rotatable about an axis perpendicular to the shifting movement of the control pistons and which is additionally rotatable about its longitudinal axis. This double rotation of the lever is accomplished by supporting the lever in a spherical joint.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.