An injection device for an internal combustion engine, the internal combustion engine including a combustion chamber and at least one intake manifold, the injection device including a first injector for injecting a fuel directly into the combustion chamber, and the injection device including a second injector for injection into the intake manifold, wherein the second injector is configured to inject water.

An electronically controlled fuel injection device that achieves reduced component count, simplified construction, and cost reduction while promoting discharge of vapor that is generated in a pressurizing chamber. With a fuel passage from a fuel intake pipe into a pressurizing chamber and a return passage that is a discharge passage for vapor generated in the pressurizing chamber, and a plunger with a prescribed reciprocating operation having a standby position set as a position enabling fuel supply and vapor discharge, the electronically controlled fuel injection device eliminates the need for an inlet check valve and promotes the discharge of vapor that is generated when fuel is supplied from the fuel intake pipe to the pressurizing chamber.

Present embodiments related to throttle body fuel injection systems intended to replace existing carburetors. More specifically, present embodiments relate to retrofitting carbureted engines with electronic fuel injection (EFI) which may be mounted on a manifold of an internal combustion engine and have bores of differing sizes and other characteristics which allow operation of such arrangement.

Present embodiments related to throttle body fuel injection systems intended to replace existing carburetors. More specifically, present embodiments relate to retrofitting carbureted engines with electronic fuel injection (EFI) which may be mounted on a manifold of an internal combustion engine and have bores of differing sizes and other characteristics which allow operation of such arrangement.

An intake control device 1 includes: a body 3 including an intake passage 2; and a valve body 4 located in the intake passage 2. The intake passage 2 includes a direction continuation segment 13 in which a first major axis direction d1 and a second major axis direction d2 are approximately parallel to each other continuously from a downstream opening 6 of the body 3. The body 3 includes a seal plane 14 formed along a plane that intersects with part of the direction continuation segment 13. The valve body 4 includes a valve plane 15 formed by a plane that abuts the seal plane 14, and is configured to slide relative to the seal plane 14 via the valve plane 15 to adjust an opening degree of the intake passage 2.

A cylinder block including: a plurality of cylinders; a cylinder head attached on the cylinder block and including, for each of the cylinders, an intake port extending from a combustion chamber upward and obliquely relative to an axis of the cylinder; a direct injector disposed at a position on an outer side of the intake port in a cylinder radial direction and directly injecting fuel into the combustion chamber; a port injector disposed at a position on a same side as the direct injector relative to the intake port, and injecting fuel into the intake port are provided. The intake port includes: a valve seat provided at an intake air inlet opened to the combustion chamber; and an arc portion protruding downward in a center area of the intake port on an upstream side of the valve seat, and an injection direction of the port injector is orientated in a direction in which the fuel injected from the port injector passes through a lower area of the arc portion.

Present embodiments provide a throttle body which may be used with a variety of engines of different manufacturers. The throttle body may be used to replace mechanical or hydraulically controlled carburetors with electronic fuel injection. The throttle body may provide improved fuel pathways and fuel injector placement.

An intake control device 1 includes: a body 3 including an intake passage 2; and a valve body 4 located in the intake passage 2. The intake passage 2 includes a direction continuation segment 13 in which a first major axis direction d1 and a second major axis direction d2 are approximately parallel to each other continuously from a downstream opening 6 of the body 3. The body 3 includes a seal plane 14 formed along a plane that intersects with part of the direction continuation segment 13. The valve body 4 includes a valve plane 15 formed by a plane that abuts the seal plane 14, and is configured to slide relative to the seal plane 14 via the valve plane 15 to adjust an opening degree of the intake passage 2.

A charge forming device includes a housing having an inlet chamber in which a supply of fuel is received, a vent passage communicating with the inlet chamber and a throttle bore with an inlet through which air is received, a throttle valve carried by the housing with a valve head movable relative to the throttle bore to control fluid flow through the throttle bore, a vent valve. The vent valve is carried by the housing and has a valve element that is movable between an open position wherein fluid may flow from the inlet chamber through the vent passage and a closed position where fluid is prevented or inhibited from flowing out of the inlet chamber through the vent passage, the vent valve being electrically actuated, and wherein the vent valve is actuated as a function of a pressure within the inlet chamber or the vent passage.

Present embodiments provide an electronic fuel injection throttle body which may be used with a variety of engines of different manufacturers. The throttle body may be used to replace mechanical or hydraulically controlled carburetors with electronic fuel injection. The bores or barrels of the throttle body may comprise one or more stackable fuel injectors. The fuel component cover may include a regulator with a housing formed integrally with the fuel component cover or alternatively, a regulator may be located remotely.