Marine fuel system with an ullage control device
US7832380B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 28, 2009 |
| Grant date | Nov 16, 2010 |
| Priority date | — |
| Expiry date | May 11, 2029 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02M37/0082
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A marine engine fuel system provides a low pressure lift pump to draw fuel from a fuel tank and cause the fuel to flow into a reservoir and a high pressure fuel pump which draws fuel from the reservoir and provides it to a fuel rail. An inlet conduit of the high pressure fuel pump is provided with a primary and a secondary opening. The secondary opening can be an orifice formed through a wall of the inlet conduit. The secondary opening is positioned, relative to the primary opening, at a location which assists in controlling the fuel level within the reservoir and the quantity of gaseous fuel contained within an ullage above the liquid pool of fuel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.