Method of operating an internal combustion engine and an interna

Details Method of operating an internal combustion engine and an interna Method of operating an internal combustion engine and an interna

1988-02-02

1989-03-28

Husar, Stephen F.

Internal-combustion engines

Charge forming device

Supercharger

1235593, 123561, F02D 2300

Patent

active

048154377

ABSTRACT:
An internal combustion engine may be driven in the suction mode as well as the supercharging mode. Switchover from the suction to the supercharging mode takes place with the accelerator pedal in a switchover position, and switchback to the suction mode is effected in the return switching position of the accelerator pedal. The switchover and switchback positions are offset with respect to each other with the accelerator pedal in a central position between its initial position and its final position. The arrangement is such that the switchover position is reached at the end of the suction mode at fully open throttle flap (full power position). Upon switchover the throttling of the supercharging flow (throttling begin position) is increased as compared to the end of the suction mode. This throttling of the supercharging is diminished by further actuation of the accelerator pedal in the direction of the final position. Corresponding switchback from the supercharging to the suction mode takes place when the accelerator pedal is in the switchback position at which the drive of the supercharger established by the engine shaft is interrupted and a change is made from the stronger throttling during the supercharging mode to the weaker throttling in the suction mode.

REFERENCES:
patent: 3180079 (1965-04-01), Freeman, Jr.
patent: 4519373 (1985-05-01), Hardy et al.
patent: 4530339 (1985-07-01), Oguma et al.
patent: 4589396 (1986-05-01), Tokushima et al.

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