a fuel - injecting apparatus supplies fuel to an internal combustion engine in a timing and at a rate adapted for its operation . the internal combustion engine includes a lubricant trap provided at the bottom of the internal combustion engine to collect lubricant for lubricating the internal combustion engine and a fuel pump for supplying the lubricant held in the lubricant trap to a fuel - injection device . in the fuel - injecting apparatus the intermediate part of a passage through which lubricant is delivered to a fuel - injection timing control device is branched off , and the branched division of the lubricant passage is made to communicate with the lubricated section of the fuel pump .