Fuel pumping apparatus
US4345566A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 5, 1980 |
| Grant date | Aug 24, 1982 |
| Priority date | — |
| Expiry date | Dec 5, 2000 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02M41/1416
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A fuel pumping apparatus for supplying fuel to a compression ignition engine includes an injection pump having a cam ring which can be moved by a piston to vary the timing of delivery of fuel. The piston is biased by compression springs the extension of which is determined by a rod having a transverse pin engageable with cam surfaces defined on an annular member. An operating shaft can be moved angularly to move the pin angularly from a first to a second position so that it contacts a different portion of the cam surface, when it is required to start the engine. During this movement a spring is stressed and this when the engine starts, moves the pin to a third position for cold idling of the engine. When the engine is warm the shaft is moved to return the pin to the first position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.