Distributed fuel injection equipment

Patent metadata

Field	Value
Publication number	US-10030622-B2
Application number	US-201414902658-A
Country	US
Kind code	B2
Filing date	Jul 4, 2014
Priority date	Jul 5, 2013
Publication date	Jul 24, 2018
Grant date	Jul 24, 2018

Abstract

Fuel injection equipment includes a high pressure fuel source able to flow high pressure fuel via connecting pipes to a plurality of injectors. The fuel injection equipment is high pressure fuel reservoir-less, a distributed storage for high pressure fuel being arranged in the pipes and in the injectors.

First claim

The invention claimed is:

1. Fuel injector equipment comprising:
a high pressure fuel source able to flow high pressure fuel;
a plurality of connecting pipes which flow fuel from said high pressure fuel source; and
a plurality of fuel injectors, each of said plurality of fuel injectors having an internal reservoir able to withstand 4 to 8 cm 3 of high pressure fuel and two inlets which outwardly extend along respective axes such that said respective axes are set at an angle or parallel to a main axis of said fuel injector, said plurality of fuel injectors being connected to said high pressure fuel source and to each other by said connecting pipes forming a daisy chain, said inlets being provided with threaded members which connect said plurality of connecting pipes to said plurality of fuel injectors via a nut;
wherein said fuel injection equipment is high pressure fuel reservoir-less;
wherein a distribution storage for high pressure fuel is arranged in said plurality of connecting pipes and in said plurality of fuel injectors;
wherein said high pressure fuel source comprises a plurality of high pressure pumps; and
wherein said plurality of high pressure pumps are connected in series.

Assignees

• Delphi Tech Ip Ltd

Inventors

• Graham Mark S
• Harcombe Anthony Thomas
• Phillips Simon H

Classifications

• F02M63/02 Primary

  Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively · CPC title

• F02M55/02

  Conduits between injection pumps and injectors {, e.g. conduits between pump and common-rail or conduits between common-rail and injectors} · CPC title

• F02M2200/40

  Fuel-injection apparatus with fuel accumulators, e.g. a fuel injector having an integrated fuel accumulator · CPC title