Solenoid operated pressure regulating valve
US5217047A · kind A · utility
40Cited by
44References
21Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 30, 1991 |
| Grant date | Jun 8, 1993 |
| Priority date | — |
| Expiry date | May 30, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/86614
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A pressure control device, preferably for use in a control system of an automatic transmission of a motor vehicle, is shown as having a solenoid motor assembly the armature of which, through a cooperating servo orifice, is effective for varying the magnitude of pressure of a fluid medium acting upon a spool slave-like valving member which ultimately provides a fluid medium to associated fluid medium receiving structure; a spring normally urges the armature toward the servo orifice and an adjustable spring seat is operatively engaged with the spring; the adjustable spring seat is formed of at least two pieces.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.