Honda Giken Kogyo Kabushiki Kaisha

Eiji Taguchi

Toshio Nomura

Kenji Kimura

Tomio Aoi

An intake passage for an internal combustion engine is provided on the downstream side of a throttle valve with a fuel injection nozzle connected through a fuel passage to a fuel pump and is additionally provided on the upstream side thereof with an air metering valve arranged to be turned towards its opening side according to increase in an intake negative pressure, and the fuel passage is provided with a fuel metering valve interposed therein. The fuel metering valve is formed into a slidable type spool valve, a valve body thereof is disposed in parallel with a valve body of the air metering valve and a lever is swingably supported at its middle portion and is in engagement at its one end with a cam mounted on a turning shaft of the air metering valve and is in engagement at its other end with a valve rod projecting from one end portion of the fuel metering valve.

Fuel injection apparatus for internal combustion engine

An internal combustion engine having a plurality of in-line cylinders is provided with a series of exhaust pipes each connected to receive exhaust gases from one or more of the cylinders. A first reaction chamber receives exhaust gases from each of the exhaust pipes. A second reaction chamber extends along a first reaction chamber parallel with the line of cylinders, and has a wall in common with the first reaction chamber. A third reaction chamber surrounds and encloses the first and second reaction chambers and the exhaust pipes. An opening between the first and second reaction chambers is positioned near one of the exhaust pipes at the end of the series, and another opening between the second and third exhaust reaction chambers is positioned near an exhaust pipe at the other end of the series. This construction minimizes temperature drop in the long exhaust pipes at the ends of the series. Exhaust gases from the engine are held at high temperature for long residence time to oxidize HC and CO and thereby minimize discharge of these unwanted emissions into the atmosphere.

Growing community of inventors

Tokyo, Japan

Eiji Taguchi