Metering valve for a pump unit for feeding fuel to internal combustion engine and pump unit comprising such a valve
US11073119B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 12, 2018 |
| Grant date | Jul 27, 2021 |
| Priority date | — |
| Expiry date | Oct 12, 2038 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02M63/008
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A metering valve for a pump unit for feeding fuel from a tank to an internal combustion engine; the metering valve having: a sleeve having an axis A and provided with a first open end for receiving a thruster, a second opposite end provided with an opening for axially discharging the fuel and at least one side opening for feeding fuel; a plug-shaped piston housed slidably along the axis A inside the sleeve, the piston being provided with a closed end having an outer surface in contact with the thruster, an open opposite end and at least one side opening; a plug housed inside the discharge opening of the sleeve and provided with an axial opening; a spring arranged between the plug and the inner surface of the closed end of the sleeve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.