High-pressure fuel pump
AssigneeDr. Ing. h.c. F. Porsche Aktiengesellschaft
InventorHans-Peter Deeg
Life of this patent
Estimating the term…
Abstract
A high-pressure fuel pump includes a housing and a swash plate which is mounted in the housing and is arranged in an oil space of the housing. A drive shaft is connected to the swash plate and passes through a housing opening, and with a seal for the drive shaft, which seal is mounted in the housing in the region of the housing opening. The high-pressure fuel pump has a plurality of pump elements for sucking up, compressing and ejecting fuel, which pump elements can be acted upon consecutively by the rotatable swash plate. In a pump of this type, the fuel pump has at least one magnet, the magnetic force field of which acts on the oil space of the housing. Premature wear of the pump, in particular premature wear of the seal, is avoided since the magnet separates off iron-containing dirt particles found in the oil.
Claims9
A high-pressure fuel pump comprising:
- a housing and a swash plate which is mounted in the housing and is arranged in an oil space of the housing,
- a drive shaft which is connected to the swash plate and passes through a housing opening,
- a seal for the drive shaft, which seal is mounted in the housing in a region of the housing opening,
- a plurality of pump elements for sucking up, compressing and ejecting fuel, which pump elements can be acted upon consecutively by the rotatable swash plate, and
- at least one magnet, a magnetic force field of which acts on the oil space of the housing, wherein the magnet is external to the oil space of the housing for drawing dirt particles into at least one dirt collecting pocket.
A high-pressure fuel pump comprising:
- a housing and a swash plate which is mounted in the housing and is arranged in an oil space of the housing,
- a drive shaft which is connected to the swash plate and passes through a housing opening,
- a seal for the drive shaft, which seal is mounted in the housing in a region of the housing opening,
- a plurality of pump elements for sucking up, compressing and ejecting fuel, which pump elements can be acted upon consecutively by the rotatable swash plate, and
- at least one magnet, a magnetic force field of which acts on the oil space of the housing, is mounted in the drive shaft for attracting dirt particles in the oil space.
Dependencies are inferred from the claim text.