Pulse actuated hub locks and control arrangement
US5445258A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 22, 1994 |
| Grant date | Aug 29, 1995 |
| Priority date | — |
| Expiry date | Feb 22, 2014 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D25/061
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A pulse actuated clutch and control arrangement for coupling and decoupling a drive line of a vehicle relative to a wheel such as when shifting between two-wheel and four-wheel drive modes. The pulse actuated clutch has a coupling member that is permanently engaged with one of a driven member and a driving member. The coupling member is movable in a first direction to engage one of the driven and driving members and is movable in a second direction to engage both the driven and driving members. The coupling member is moved in the second direction by a first pulse of air pressure applied thereto. Formations of the piston assembly and the driven member cooperatively latch the piston in the second position to maintain the coupling member in engagement with both the driven and driving members following first pulse of air pressure. A second, greater magnitude pulse of air pressure moves the primary piston further to unlatch the piston and uncouple the driven member from the driving member. The illustrated control arrangement incorporated into a general purpose control module for a vehicle to accomplish pulse actuated control over the clutch mechanism in coordination with other vehicle c…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.