Method of actuating a butterfly valve arranged in the intake sys

Details Method of actuating a butterfly valve arranged in the intake sys Method of actuating a butterfly valve arranged in the intake sys

1990-09-27

1992-02-18

Argenbright, Tony M.

Internal-combustion engines

Engine speed regulator

Open loop condition responsive

123361, F02D 902

Patent

active

050884620

ABSTRACT:
A method of actuating a throttling element in the intake system of an air-compressing fuel-injected internal combustion engine, which in low load and speed ranges is held in the closing position and in central and high load and speed ranges is held in an opening position. The throttling element in each operating point of the internal combustion engine is adjusted to that opening position which corresponds to an absolute pressure, determined from a load-dependent and speed-dependent characteristic diagram, in the intake system downstream of the throttling element, the setpoint value for the absolute pressure being corrected as a function of further operating parameters of the internal combustion engine.

REFERENCES:
patent: Re33027 (1989-08-01), Danno et al.
patent: 4473052 (1984-09-01), Kamiyama et al.
patent: 4524745 (1985-06-01), Tominari et al.
patent: 4811713 (1989-03-01), Shimada et al.
patent: 4944267 (1990-07-01), Mann
patent: 5002028 (1991-03-01), Arai et al.

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