Method of manufacture of an electromagnetically actuatable fuel

Details Method of manufacture of an electromagnetically actuatable fuel Method of manufacture of an electromagnetically actuatable fuel

1987-08-18

1988-10-25

Echols, P. W.

Metal working

Method of mechanical manufacture

Electrical device making

29460, H01F 706

Patent

active

047793317

ABSTRACT:
An electromagnetically actuatable fuel injection valve, which serves to supply fuel to mixture-compressing internal combustion engines having externally supplied ignition. The fuel injection valve includes a base plate into which pole pieces having bent poles are inserted. Magnetic coils are fitted onto the pole pieces. A first permanent magnet is inserted between the poles and a second permanent magnet is disposed between the magnetic conductor elements disposed on the other end of the pole pieces. Beginning at the base plate, the magnetic coils and the pole pieces are provided with a sprayed-on plastic jacket. The plastic jacket is inserted together with the base plate into an internal housing bore of a valve housing. A valve group is inserted into an outlet pipe of the valve housing which has an armature oriented toward the poles and joined with a valve needle which on its other end has a closing head that cooperates with a valve seat on a valve seat body and can be raised from the valve seat in the fuel flow direction.

REFERENCES:
patent: 3040217 (1962-06-01), Conrad
patent: 3379214 (1968-04-01), Weinberg
patent: 4506701 (1985-03-01), Masaki et al.
patent: 4513780 (1985-04-01), Evans
patent: 4525695 (1985-06-01), Sheng et al.
patent: 4574841 (1986-03-01), Hugler

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