초록 ▼

Method and apparatus for cleaning fuel injector systems of internal combustion engines which comprises avoidance of burns and possible injuries in setting up the conventional system apparatus in the engine compartment. The present method is characterized by setting up the required connections and ap

Method and apparatus for cleaning fuel injector systems of internal combustion engines which comprises avoidance of burns and possible injuries in setting up the conventional system apparatus in the engine compartment. The present method is characterized by setting up the required connections and apparatus at the rear of the vehicle in an area isolated from the region under the vehicle hood. The invention has other advantages. In particular, filter replacement in the isolated area subsequent to completion of the cleaning process is effected by a novel aspect of the method which involves filter removal as a step in the method. In a conventional method the filter is left in place but ultimately replaced, for comprehensive maintenance of the fuel system, as an additional step. Another advantage of the invention is the method of detecting leakage in injector and fuel flow systems and to detect the extent of clogging of individual injectors to determine the need for replacement.

대표청구항 ▼

The method of cleaning the fuel injector system of an internal combustion engine of the kind having: an engine space with a fuel injector system for said engine; an area isolated from any heated or moving components of said engine space; said isolated area having therein a fuel tank with communicati

The method of cleaning the fuel injector system of an internal combustion engine of the kind having: an engine space with a fuel injector system for said engine; an area isolated from any heated or moving components of said engine space; said isolated area having therein a fuel tank with communication therefrom to said fuel injector system through a filter having upstream and downstream connector means from a fuel pump to said fuel injector system; and having a fuel return line to said tank therein; wherein said method comprises in said isolated area: preventing return flow to said tank; disconnecting and removing the filter from the upstream and downstream connector means thereof; shunting the output of said fuel pump to said tank; connecting a source of cleaning fluid to said fuel injector system via said upstream and downstream connector means; whereby effecting flow from a source of cleaning fluid to said fuel injector system.