Patent ID: 7931011
Filing Date: 2011-04-26
Classification: F02B,F02M,Y02T

Abstract:
1. A fuel supply circuit that supplies fuel in a fuel tank to an injector of an internal combustion engine, comprising: at least a fuel pump that is installed so as to feed the fuel in the fuel tank with pressure to the injector so as to improve a compression ratio of the fuel; a separator provided with a selective check valve so as to separate fuel vapor from the fuel supplied by the fuel pump; and an injection pump receiving the fuel from the separator, compressing it, and feeding the fuel with pressure to the injector; wherein the separator is partitioned into an fuel vapor collection compartment storing the fuel vapor separated from the fuel and a fuel collection compartment storing the fuel, and wherein the selective check valve is interposed between the fuel vapor collection compartment and the fuel collection compartment to separate the fuel vapor from the fuel.