Range section preexhaust
US5172604A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 23, 1992 |
| Grant date | Dec 22, 1992 |
| Priority date | — |
| Expiry date | Jan 23, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/20018
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A fluid pressure actuated auxiliary transmission section (14) shift control system (230)/method is provided which includes control members to minimize the possibility of auxiliary section synchronized clutch (92, 128) damage by the main transmission section (12) being engaged during an auxiliary section shift. A range interlock assembly (258) is provided which will release the range slave valve (238) as the main transmission section is shifted into the neutral position thereof and preexhaust valves (300, 302) are provided which will exhaust the appropriate actuator chamber (222A, 224A) upon preselection of an auxiliary section shift.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.