Flow through fuel pressure regulator
US5435345A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 30, 1994 |
| Grant date | Jul 25, 1995 |
| Priority date | — |
| Expiry date | Jun 30, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/86228
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A flow-through type fuel pressure regulator having, for its valve element, a sphere laser-welded to the housing end wall of the fuel inlet chamber, and for its valve seat, a coined circular surface circumscribing a through-passage in an annular member at the center of a movable wall (diaphragm) that divides the fuel inlet chamber from the fuel outlet chamber and that is resiliently biased toward the fuel inlet chamber by a spring that is disposed in the fuel outlet chamber. The annular member includes a series of circumferentially spaced bars that form a cage for the sphere, allowing the sphere to guide the motion of the central region of the movable wall relative to the sphere substantially along the axis of the housing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.