SYSTEM AND METHOD FOR IMPROVING OPERATION OF AN ENGINE COMBUSTING LIQUEFIED PETROLEUM GAS

摘要

A method and system for improving operation of an engine that is supplied a fuel having a low super critical temperature is presented. In one example, the method supplies fuel to cool a direct injection fuel pump and participate in combustion in an engine cylinder after the fuel is vaporized. The method also provides for injecting a liquid fuel to the engine cylinder via the direct injection fuel pump.

主权项

1. A method for operating an engine, comprising:
cooling a direct injection fuel pump with a liquid fuel, the liquid fuel not pumped via the direct injection fuel pump.