Pneumatic diaphragm control element for a fuel injection apparat

Details Pneumatic diaphragm control element for a fuel injection apparat Pneumatic diaphragm control element for a fuel injection apparat

1986-03-10

1988-03-01

Miller, Carl Stuart

Internal-combustion engines

Engine speed regulator

Having condition responsive means with engine being part of...

123382, F02M 3900

Patent

active

047278390

ABSTRACT:
A pneumatic diaphragm control element for a fuel injection apparatus for internal combustion engines, in particular for supercharged diesel engines, has a thrust rod that is axially displaceable between two end stop counter to the force of a restoring spring, which thrust rod acts upon a control member of the fuel injection apparatus and is connected to a pressure-actuated diaphragm. One end stop determines the position assumed by the thrust rod when there is no pressure and is embodied as a stop screw for the thrust rod. The second end stop defines the position assumed by the thrust rod with maximal pressure being exerted on the diaphragm, and to this end cooperates with a counterpart stop that is adjustably coupled with the thrust rod. For better adaptation of the regulating characteristic, the counterpart stop is embodied as a pre-stressed spring assembly with two stop positions, such that when the first stop position is attained, after the spring pre-stressing is overcome, a further displacement travel (S.sub.2) of the thrust rod until the second stop position is attained is available.

REFERENCES:
patent: 2569664 (1951-10-01), Gewinner
patent: 2893366 (1959-07-01), Nystrom
patent: 3149619 (1964-09-01), Whalen
patent: 3776210 (1973-12-01), Beasley
patent: 3795233 (1974-03-01), Crews
patent: 4149507 (1972-04-01), Little
patent: 4286559 (1981-09-01), Ritter
patent: 4441472 (1984-04-01), Knorreck

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