Factory Tractors Engine Hydraulic Oil Filter HF6684 P173789 P564468 P170949 P179763 for For Excavator Diesel Engine

Product Size

Outer Diameter : 117mm
Height : 362mm
Seal Ring Diameter : 86mm
Thread Size : 1 3/4-12 U
Transmission Type : Manual- / optional automatic transmission

OEM reference number

AGCO : 534039D1
CASE IH : 277311A1
CATERPILLAR : 152-6902
CLAAS : 00 0366 387.0
CLAAS : 0366 387 0
JOHN DEERE : RE152658
JOHN DEERE : RE174130
JOHN DEERE : RE51797
JOHN DEERE : RE51797A
NEW HOLLAND : 87413809
BALDWIN : BT742
BALDWIN : BT8870-MPG
DONALDSON : P170949
FLEETGUARD : HF6590
FLEETGUARD : HF6684
FRAM: P8463
HENGST FILTER : HY378W
IHC : 19 71 728 C1
KNECHT : HC 130
LUBERFINER: LFH8417
MANN-FILTER : WH 12 005
PUROLATOR : H65027
TRP : 1535370
WIX FILTERS : 51729
WOODGATE : WGH6590
The principle structure of the hydraulic filter has two aspects, one is the continuous gradient density filter bed structure with sparse upper and lower dense, and the other is the asymmetric fiber filter material structure of the hydraulic filter. The hydraulic filter uses a flocculation dosing device to add flocculant to the circulating water from the pump. After the raw water is pressurized by the booster pump, the flocculant is stirred by the pump impeller and evenly mixed to suspend the fine solid particles and colloidal substances in the raw water for micro-flocculation. After the reaction, flocs with a volume greater than 5 microns are rapidly generated, which flow through the pipeline of the filtration system and enter the high-efficiency asymmetric fiber filter, and the flocs are filtered and retained by the filter material.

1. The hydraulic filter has a continuous gradient density filter bed structure with sparse upper and lower density: the filter bed composed of asymmetric fiber bundle filter material is compacted by the water flow, and resistance is generated when the water flows through the filter layer. From top to bottom, the water head is lost. Gradually reduce, the water flow speed is getting faster and faster, the compaction degree of the filter material is higher and higher, and the porosity is smaller and smaller, so that along the water flow direction, a continuous gradient dense hydraulic filter is automatically formed.

2. Hydraulic filter asymmetric fiber filter material structure: The core technology of high-efficiency automatic gradient density fiber hydraulic filter is to use asymmetric fiber bundle material as filter material, one end of which is loose fiber tow, and the other end of the fiber tow is fixed at the specific gravity In a larger solid body, during filtration, the solid core with a larger specific gravity plays a role in compacting the fiber tow. At the same time, due to the small core size, it has little effect on the uniformity of the porosity distribution of the filter section, thereby improving the efficiency of the filter. The interception capacity of the filter bed. The filter bed has the advantages of high porosity, small specific surface area, high filtration rate, large amount of dirt interception, and high filtration accuracy for fiber filtration. The adhesion between the solid and the fiber bundle is much greater than that with the quartz sand, which is beneficial to improve the filtration speed and filtration precision of the hydraulic filter. During backwashing, due to the difference in specific gravity between the core and the fiber filaments, the comet tail fibers spread out and swing with the backwashing water flow, resulting in a strong drag force; Mechanical force, the irregular shape of the filter material makes the filter material rotate under the action of backwash water flow and air flow, which strengthens the mechanical shear force on the filter material during backwashing. The solid particles attached to the surface of the fiber are easy to fall off, thereby improving the cleaning degree of the filter material. In this way, the asymmetric fiber filter material has the backwash function of the particle filter material at the same time. The principle of the hydraulic filter is basically composed.