Patent ID: 8973560
Filing Date: 2015-03-10
Classification: F02D,F02M,Y02T

Abstract:
1. A dual fuel supply system for supplying fuel to a direct-injection system of a diesel engine, the dual fuel supply system including: a diesel supply system to supply diesel to the direct-injection system; and a mixed fuel supply system that is operatively able to supply a liquid fuel mixture of diesel and liquefied gaseous fuel to the direct-injection system at a supply pressure within a fuel demand pressure range of the direct-injection system and at a corresponding temperature range that retains the fuel mixture below its vapor temperature as it flows through the fuel path of the direct-injection system and the diesel engine, wherein the mixed fuel supply system further comprising a controller configured to regulate the supply pressure of the liquid fuel mixture within a pressure range towards a high end of the fuel demand pressure of the direct-injection system and configured to supply the fuel mixture at a supply temperature that is sufficiently lower than the vapor temperature of the liquid fuel mixture at the supply pressure to compensate for heat that is introduced into the liquid fuel mixture by engine heat as it flows through the fuel path of the direct-injection system and the diesel engine and wherein the dual fuel supply system is configured to permit selective change over between the diesel supply system and the mixed fuel system to supply the direct-injection system selectively with either diesel or liquid fuel mixture respectively, and the controller is configured to control selectively the change over between the diesel supply system and the mixed fuel supply system.