Combustion engine with fuel injection system, and a spray valve for such an engine

Claim 1

A combustion engine with a fuel system, said engine having at least one cylinder with an air inlet passage, into which passage opens a fuel spray valve which is connected to a fuel pipe with a pump, while disposed in a selected part of the fuel system is a fuel heating element with which the infed fuel can come into direct contact, characterized in that the fuel system comprises a fuel injection system having a fuel spray valve which is connected to the fuel pipe and the fuel heating element is provided in the form of a thermistor of material with a positive temperature coefficient associated with the fuel spray valve, said thermistor being connected to an electrical supply and discharge cable, a holder being disposed on the fuel spray valve and having therein the thermistor in the form of a PTC tablet which is connected to a heat sink for transfer of heat to the fuel, said heat sink being designed as a metal box to have good heat-conducting properties and low mass with at least one fuel passage for heat transfer from the box to fuel flowing in the passage.