Global Patent Index - EP 2796705 A1

EP 2796705 A1 20141029 - Fuel injection system and fuel pump

Title (en)

Fuel injection system and fuel pump

Title (de)

Kraftstoffeinspritzsystem und Kraftstoffpumpe

Title (fr)

Système d'injection de carburant et pompe à carburant

Publication

EP 2796705 A1 20141029 (EN)

Application

EP 13164627 A 20130422

Priority

EP 13164627 A 20130422

Abstract (en)

A fuel injection system (100) for an internal combustion engine is disclosed. The fuel injection system comprises at least one electronically-controlled fuel injector (102), a fuel pump (104) for supplying pressurised fuel to the or each injector (102), and a controller (130) arranged to control the injection of fuel from the or each injector (102). The fuel pump (104) comprises a pump chamber (146), a pumping element (140), and a drive mechanism (360) for driving the pumping element (140) in a pumping stroke in which the volume of the pump chamber (146) is reduced, and a filling stroke in which the volume of the pump chamber (146) is increased and in which fuel is admitted to the pump chamber (146) from a fuel source (116). The drive mechanism (360) comprises a biasing arrangement (468) arranged to apply a resilient biasing force, such as a spring force, to the pumping element (140) to drive the pumping stroke. In this way, the resilient biasing force acts to pressurise the fuel for injection, providing a simplified fuel injection system with electronic control of the injection timing and duration. Fuel pumps suitable for use in such a system are also disclosed.

IPC 8 full level

F02M 59/18 (2006.01)

CPC (source: EP)

F02M 59/18 (2013.01)

Citation (applicant)

Citation (search report)

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA ME

DOCDB simple family (publication)

EP 2796705 A1 20141029

DOCDB simple family (application)

EP 13164627 A 20130422