Filter assembly for fuel injectors
AssigneeCaterpillar Inc.
InventorsDiego Caceres, Thangaraj Ramalingam
Life of this patent
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Abstract
A filter assembly for filtering hydraulic fluid in a hydraulically actuated fuel injector is disclosed. The filter assembly includes a plurality of first rollers and a plurality of second rollers. The first rollers are parallelly disposed one after the other, and define first axes disposed in a first plane. The second rollers are parallelly disposed one after the other, and define second axes disposed in a second plane. The first plane is parallel to the second plane. Further, each second roller is disposed between a consecutively arranged pair of first rollers to define one or more filtration zones for filtering the hydraulic fluid.
Claims20
A filter assembly for filtering hydraulic fluid in a hydraulically actuated fuel injector, the filter assembly comprising:
- a plurality of first rollers parallelly disposed one after the other, and defining first axes disposed in a first plane;
- and
- a plurality of second rollers parallelly disposed one after the other, and defining second axes disposed in a second plane parallel to the first plane, each second roller of the plurality of second rollers being disposed between a consecutively arranged pair of first rollers of the plurality of first rollers to define one or more filtration zones for filtering the hydraulic fluid.
A fuel injector, comprising:
- a body with a channel to receive hydraulic fluid for actuating the fuel injector;
- and
- a filter assembly at least partly positioned within the channel to filter the hydraulic fluid, the filter assembly including:
- a plurality of first rollers parallelly disposed one after the other, and defining first axes disposed in a first plane;
- and
- a plurality of second rollers parallelly disposed one after the other, and defining second axes disposed in a second plane parallel to the first plane, each second roller of the plurality of second rollers being disposed between a consecutively arranged pair of first rollers of the plurality of first rollers to define one or more filtration zones for filtering the hydraulic fluid.
Dependencies are inferred from the claim text.