Direct-acting, non-close clearance solenoid-actuated valves
US4893652A · kind A · utility
22Cited by
19References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 29, 1988 |
| Grant date | Jan 16, 1990 |
| Priority date | — |
| Expiry date | Apr 29, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/87217
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Solenoid-actuated valves in a four-speed automatic transmission which are direct-acting and have a non-close clearance design to prevent dirt or other contaminants from interfering with the operation of said valves. The solenoid-actuated valves also include armature having an offset portion extending toward electromagnetic means to be offset toward the center inside the electromagnetic means for efficient magnetic flow.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.