Solenoid operated pressure regulating valve
US5121769A · kind A · utility
51Cited by
44References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 30, 1991 |
| Grant date | Jun 16, 1992 |
| 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 fluid medium flow restriction formed as of sintered metal enables the fluid medium to flow in and through the control device to thereby bring about purging of air and other gases from within said control device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.