Abstract: A fluid dispersal device has a fluid inlet port, a nozzle, a fluid jet passage and an outlet throat provided in a housing and arranged from the upstream side thereof in order. The sidewalls defining the fluid jet passage are composed of deflection walls, turn walls and branch walls arranged in order from the upstream side thereof. The deflection walls are parallel walls symmetric with respect to the center line of said nozzle, each of the turn walls continues from the downstream end of each of the deflection walls and is formed into a rectangular concave wall, the distance between the opposed rectangular concave walls is larger than that between the deflection walls. The branch walls continue from the downstream ends of the turn walls and project in opposite directions. The outlet throat is defined by the oppositely projecting branch walls. The fluid jet jetted from the nozzle is rightward of leftward deflected due to the interaction between the fluid jet and the deflection walls.

Abstract: A supercharger apparatus for an internal combustion engine. A compressor impeller is arranged in a compressor housing so that a clearance is formed therebetween. The housing is slidably connected to a housing for supporting a shaft on which the compressor impeller is connected, so that the compressor housing is moved between a first position where the clearance is minimum and a second position where the clearance is maximum. A fluid chamber is provided for receiving a fluid flow to generate pressure for moving the compressor housing between the first position and the second position in accordance with the operating condition of the engine to vary the clearance.

Abstract: The temperature and air-fuel ratio of the exhaust gases of an internal combustion engine are sensed to generate signals indicative thereof and the amount of fuel to be injected into the engine is determined in accordance with the signals, thus controlling the air-fuel ratio at a predetermined value and thereby decreasing the abnormal temperature rise in the exhaust system.

Abstract: An internal combustion engine with a supercharger, for use in a vehicle having an acceleration pedal. A throttle valve disposed in an intake system of the engine is interlocked with the acceleration pedal and is movable between an idle position when the acceleration pedal is in a non-load position and a full-open position when the acceleration pedal is in a predetermined intermediate-load position. The throttle valve is held in its full-open position when the acceleration pedal is between the predetermined intermediate-load position and a full-load position. A control device is interlocked with the acceleration pedal for controlling the operation of the supercharger so as to cause the same to perform its supercharging only when the acceleration pedal is between the predetermined intermediate-load position and the full-load position.