Switching magnet for a high pressure pump

Details Switching magnet for a high pressure pump Switching magnet for a high pressure pump

1999-01-11

2000-11-21

Moulis, Thomas

Internal-combustion engines

Charge forming device

Fuel injection system

123458, F02M 3304

Patent

active

061487961

ABSTRACT:
A switching magnet with which a valve reed of a high-pressure pump is lifted from a seat in order to switch off a pump element of the high-pressure pump. The switching magnet is disposed in a housing that is manufactured as a plastic injection-molded part. An armature that floats in an armature chamber and a brass sleeve are disposed on the inside of the housing and the brass sleeve is turned upside down over a pole piece. The pole piece supports an O-ring, which rests against the inside of the brass sleeve and seals the armature chamber in relation to the outside and in relation to the coil. A second O-ring seals a passage of the tappet in relation to a pump cover of the high-pressure pump. The switching magnet is designated for use in a high-pressure pump of a common rail injection system of an internal combustion engine.

REFERENCES:
patent: 4411406 (1983-10-01), Inada et al.
patent: 4832312 (1989-05-01), Linder et al.
patent: 4953825 (1990-09-01), Osumi et al.
patent: 5476245 (1995-12-01), Augustin
patent: 5533480 (1996-07-01), Jenkins

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