Control device for shutting off an internal combustion engine

Details Control device for shutting off an internal combustion engine Control device for shutting off an internal combustion engine

1983-12-21

1986-01-21

Moy, Magdalen Y. C.

Internal-combustion engines

Engine speed regulator

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

123198DB, F02M 6302

Patent

active

045651701

ABSTRACT:
A control device for Diesel engines with which a rapid shutoff of the latter is possible by emptying the suction chamber of the injection pump by aspiration. The control device includes a control valve, which in the operating position (I) opens up the feed line of the feed pump toward the suction chamber and in the reversed shutoff position (II) blocks this feed line between the compression side (D) of the feed pump and the suction chamber. The control valve is an electromagnetic shutoff valve. A further part of the control device is an electric fuel pump, which as a special aspirating pump is disposed in an aspiration line leading from the suction chamber back to the fuel tank. For emergency engine shutoff, the control valve, displaced into its blocking position (II), blocks the flow of fuel between the feed pump and the suction chamber, while the aspirating fuel pump that has been turned on at the same time empties the suction chamber by aspiration. The emergency shutoff takes place rapidly, thereby reliably preventing engine damage and accidents.

REFERENCES:
patent: 4319550 (1982-05-01), Ishii et al.
patent: 4361121 (1982-11-01), Clemens et al.
patent: 4391241 (1983-07-01), Dohshita et al.
patent: 4403580 (1983-09-01), Bader
patent: 4452196 (1984-06-01), Indra

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