A throttle body fuel injection system including a throttle body with at least one air intake, a fuel injector coupled to the throttle body at a fuel port and an annular ring coupled to the cylindrical inner wall of the air intake. The annular ring includes a primary fuel discharge orifice adjacent to the fuel port and a plurality of secondary fuel discharge orifices arranged radially around the annular ring for spraying atomized fuel into the air intake.

A vehicle comprises an engine, a throttle body including a passage section and a throttle valve, and a throttle valve controller which controls opening or closing of the throttle valve, wherein the throttle valve controller includes: a memory section which contains therein a medium output control command such that the medium output control command continues to be stored in the memory section in a state in which electric power supply to the throttle valve controller is ceased, the medium output control command indicating an opening degree of the throttle valve, corresponding to a preset medium output range, and wherein the throttle valve controller controls opening or closing of the throttle valve, in accordance with the medium output control command read from the memory section, when an engine output meets a medium output condition in which the engine output is controlled to fall into the medium output range.

A method of using a throttle body fuel injection system including a throttle body with at least one air intake, an electronic fuel injector coupled to the throttle body at a fuel port and an annular ring coupled to the cylindrical inner wall of the air intake. The annular ring includes a fuel discharge orifices arranged radially around the annular ring for spraying atomized fuel into the air intake, in order to operate an internal combustion engine.

Provided is a throttle device including two throttle bodies having motors that face to each other, in which the wiring base member is compactly placed. A throttle device 1 includes first and second throttle bodies 2 and 3. The first and second throttle bodies 2 and 3 each include a gear case 10 that houses a deceleration mechanism 9 that transmits the rotational force of the motor 8 to the throttle shaft 6. A wiring base member 7 having a power coupler 14 is fixed between the first and second throttle bodies 2 and 3 while being placed between these gear cases 10. The wiring base member 7 has wiring 32 embedded therein, the wiring 32 connecting the motor terminal 25 of each motor 8, the motor terminal 25 protruding into the gear case 10, and the power coupler 14.

Present embodiments relate to an electronic fuel injection throttle body assembly for an internal combustion engine. More specifically, but without limitation, present embodiments relate to an improved electronic fuel injection (EFI) throttle body which has a remote communication capability as well as improved throttle position sensing.

Present embodiments relate to an electronic fuel injection throttle body assembly for an internal combustion engine. More specifically, but without limitation, present embodiments relate to an improved electronic fuel injection (EFI) throttle body which has a remote communication capability as well as improved throttle position sensing.

A throttle apparatus for an engine according to the present invention includes a pair of throttle bodies 2f and 2r disposed between a pair of banks Bf and Br of a V-type engine E, a pair of throttle bores 3 provided in the respective throttle bodies 2f and 2r and configured to guide intake air, throttle valves 5 supported to be openable/closable by a pair of throttle shafts 4 intersecting an arrangement direction of the banks and an axial direction of the throttle bores 3 and parallel to each other, and coupling portions 28 and 23 extending from the respective throttle bodies 2f and 2r in a direction approaching each other and configured to couple the throttle bodies 2f and 2r by being fastened at abutting portions 28b and 23c superimposed on each other with fastening members 30.