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1. (WO2018178085) HIGH PRESSURE FUEL PUMP

Pub. No.:    WO/2018/178085    International Application No.:    PCT/EP2018/057792
Publication Date: Fri Oct 05 01:59:59 CEST 2018 International Filing Date: Wed Mar 28 01:59:59 CEST 2018
IPC: F02M 59/46
F02M 63/02
F02D 41/38
Applicants: DELPHI TECHNOLOGIES IP LIMITED
DELPHI FRANCE SAS
Inventors: LLOYD, James
FULLER, Trevor
Title: HIGH PRESSURE FUEL PUMP
Abstract:
A high pressure fuel pump, said pump including a low pressure fuel inlet and a cam-driven plunger and cylinder arrangement, said cylinder including a low pressure fuel inlet and a high pressure fuel outlet, and said plunger adapted to reciprocate in a cylinder so as to draw fuel from said inlet and to provide pressurised fuel via said high pressure fuel outlet, and characterised wherein said cylinder further includes an outlet to a depressurisation path via depressurization valve, adapted to provide a pathway for fuel to allow depressurisation of fuel in said cylinder.