Abstract: A fuel injector for an internal combustion engine is disclosed. An injection hole thereof has a width larger than a height thereof. In the fuel injector, the fuel before being injected is imparted with a swirl component about the center axis of the injection hole by a spiral groove.

Abstract: An oxygen enriched air producing apparatus includes a casing, at least one rotor rotatably disposed in the casing to thereby define a space between the casing and the rotor, and a magnetic field generating device for generating a magnetic flux extending axially within the space between the casing and the rotor. An oxygen enriched air outlet and a nitrogen enriched air outlet are formed in the casing so as to be spaced from each other in an axial direction of the space.

Abstract: A device, for mounting an engine on a vehicle body, comprising a mount insulator which has a shaft fixed onto the vehicle body. A hollow cylindrical rubber ring, surrounded by a cylindrical metallic outer member, is inserted onto the shaft. A dish-shaped insulator bracket is fixed onto the cylindrical outer member of the mount insulator. A dish-shaped engine mount bracket is fixed onto the engine body. The insulator bracket has inclined wall portions at the opposed ends thereof. Each of the inclined wall portions has a threaded hole formed thereon. The engine mount bracket has inclined wall portions at the opposed ends thereof. Each of the inclined wall portions has a slot formed thereon. When the engine mount bracket and the insulator bracket are superimposed in order to assemble the engine to the engine body, the engine mount bracket is just fitted onto the insulator bracket, and the threaded bores of the insulator bracket are aligned with the corresponding slots of the engine mount bracket.

Abstract: A throttle positioner adapted to be operated by an intake vacuum system to maintain a throttle valve at a throttle opening position for a predetermined time when an accelerating pedal has been released while an automobile is running, wherein a vacuum control valve is provided to selectively nullify said intake vacuum operating system as long as the rotational speed of an engine is above a predetermined level, said vacuum control valve being controlled by delivery air pressure of an air pump driven by the engine.