Patent ID: 7152577
Filing Date: 2006-12-26
Classification: F02D,F02M

Abstract:
1. A throttle body for a V-type engine comprising: a first throttle body in which a first suction air passage is provided through; a second throttle body in which a second suction air passage is provided through, the first throttle body and the second throttle body being arranged adjacently in sideward parallel to each other; a throttle valve shaft arranged so as to penetrate across the first suction air passage and the second suction air passage; a first throttle valve opening and closing the first suction air passage; a second throttle valve opening and closing the second suction air passage, the first throttle valve and the second throttle valve being attached to the throttle valve shaft; a first fuel injection valve which is open toward a suction air passage in a downstream side of the first throttle valve, and is attached to one side wall of the first throttle body; and a second fuel injection valve which is open toward a suction air passage in a downstream side of the second throttle valve, and is attached to the other side wall of the second throttle body, wherein a first fuel distribution pipe is formed by a first fuel passage boss portion formed toward a side portion, a first fuel injection valve support boss portion formed so as to protrude toward an upper side from the first fuel passage boss portion, first and second mounting collar portions protruding toward the other side portion (X) from the first fuel passage boss portion and having a mounting hole provided therein, and a first fuel connection pipe portion protruding toward the other side portion (X) from the first fuel passage boss portion, wherein a first fuel passage is provided in the first fuel passage boss portion toward a side portion, wherein a first injection valve insertion hole connected to the first fuel passage and open toward an upper end is provided in the first fuel injection valve support boss portion, wherein a first fuel connection path is provided in the first fuel connection pipe portion from a leading end toward the first fuel passage, wherein a second fuel distribution pipe is formed by a second fuel passage boss portion formed toward a side portion, a second fuel injection valve support boss portion formed so as to protrude toward an upper side from the second fuel passage boss portion, third and fourth mounting collar portions protruding toward one side portion (Y) from the second fuel passage boss portion and having a mounting hole provided therein, and a second fuel connection pipe portion protruding toward the one side portion (Y) from the second fuel passage boss portion, wherein a second fuel passage is provided in the second fuel passage boss portion toward a side portion, wherein a second injection valve insertion hole connected to the second fuel passage and open toward an upper end is provided in the second fuel injection valve support boss portion, wherein a second fuel connection path is provided in the second fuel connection pipe portion from a leading end toward the second fuel passage, wherein an inflow side end portion of the first fuel injection valve is arranged so as to be inserted into the first injection valve insertion hole of the first fuel injection valve support boss portion by arranging said first fuel distribution pipe so as to face to the one side walls of the first and second throttle bodies and fixing by screw to the one side walls of the first and second throttle bodies via the mounting holes of the first and second mounting collar portions, wherein the first fuel connection pipe portion is arranged above inflow ends of the first and second throttle bodies and between facing walls of the first and second throttle bodies, wherein an inflow side end portion of the second fuel injection valve is arranged so as to be inserted into the second injection valve insertion hole of the second fuel injection valve support boss portion by arranging said second fuel distribution pipe so as to face to the other side walls of the first and second throttle bodies and fixing by screw to the other side walls of the first and second throttle bodies via the mounting holes of the third and fourth mounting collar portions, wherein the second fuel connection pipe portion is arranged above inflow ends of the first and second throttle bodies and between the facing walls of the first and second throttle bodies, wherein a fuel inflow pipe connected to a fuel pump is arranged so as to be connected to an opening portion to an end portion of the first fuel passage boss portion in the first fuel passage, and wherein the first and second fuel connection pipe portions are arranged so as to be connected by a fuel coupling pipe.