Brake clearance sensing and control system
US4749063A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 17, 1987 |
| Grant date | Jun 7, 1988 |
| Priority date | — |
| Expiry date | Mar 17, 2007 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D66/00
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A brake clearance sensing and control system (60) is provided for controlling brake released clearance (c) between a frictional braking member (6) and a rotary brake surface (15). System (60) includes an air flow rate sensor (18) operative to provide a signal (26) indicative of air flow rate through conduit (4) between a pressurized air source (2) and a gap (16) between frictional member (6) and rotary brake surface (15) that is a function of clearance (c) and which creates a variable air flow restriction. System (60) preferably includes a pulse control (20) operative to cause pressurized air to flow through conduit (4) only in the brake released condition and signal (26) is operative to either or both provide a warning signal (32) when clearance (c) has exceeded a predetermined maxiumum and to enable an adjusting mechanism to adjust clearance (c) to a desired predetermined clearance in the brake released condition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.