Solenoid operated transmission cartridge valve
US5156184A · kind A · utility
18Cited by
5References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 21, 1991 |
| Grant date | Oct 20, 1992 |
| Priority date | — |
| Expiry date | Oct 21, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/86622
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A low cost valve results from the use of a single machined part for a valve housing. The housing is made of a non-magnetic material which can be less expensive and eliminates the requirement for screens or filters in automotive applications. A tube stop is threadably connected to the valve housing eliminating the requirement of brazing in manufacturing. Finally, a biasing spring acting on a plunger pin eliminates the requirement for providing a counterbore in the plunger for maintaining the plunger and thus a valve member in the normal or unactuated position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.