Electromagnetically actuated fuel injection valve
AssigneeRobert Bosch GmbH
InventorsKlaus-Henning Krohn, Waldemar Hans, Christian Preussner, Johann Bayer
Life of this patent
Estimating the term…
Abstract
In a fuel injection valve, the direct attachment of a protective sleeve to the valve housing has the effect that breathing of the inside of the valve can take place without spray water or other fluids penetrating into the inside of the valve (coil space). The fluid is, rather, held in a space with many passages. Corrosion on the contact pins or on the coil wire is, therefore, ruled out. The fuel injection valve is particularly suitable for use in fuel injection systems of mixture-compressing internal combustion engines with externally supplied ignition.
Claims11
An electromagnetically actuated fuel injection valve comprising:
- a valve housing;
- a protective sleeve having a first end and a second end, the protective sleeve surrounding the valve housing such that at least one space is formed between the first end of the protective sleeve and the valve housing;
- and
- a plastic covering being connected in a leak-tight manner to the second end of the protective sleeve.
An electromagnetically actuated fuel injection valve comprising:
- a valve housing;
- a protective sleeve having a first end and a second end, the protective sleeve surrounding the valve housing such that at least one space is formed between the first end of the protective sleeve and the valve housing;
- and
- a plastic covering being connected in a leak-tight manner to the second end of the protective sleeve, wherein the protective sleeve further includes a plurality of ribs and an inner wall, the plurality of ribs protruding radially inward from the inner wall of the protective sleeve and into the space and subdividing the space.
An electromagnetically actuated fuel injection valve comprising:
- a valve housing;
- a protective sleeve having a first end and a second end, the protective sleeve surrounding the valve housing such that at least one space is formed between the first end of the protective sleeve and the valve housing;
- and
- plastic covering being connected in a leak-tight manner to the second end of the protective sleeve, wherein the protective sleeve further includes a plurality of ribs and an inner wall, the plurality of ribs being arranged in a substantially circular shape, interleaved into the space and subdividing the space.
Dependencies are inferred from the claim text.