| 摘要 |
This invention discloses a disposable-type filter particularly adapted for use in the coolant system of internal combustion engines, the filter including a housing having a support plate provided with a central interiorly threaded outlet neck and with inlet passages spaced radially from said neck, a rigid canister provided in said housing in spaced relation from said support plate, a stepped tubular adapter seated over said outlet neck and separating said canister from said support plate, and a spring mounted in said housing pressing said canister and said adapter toward said support plate. In accordance with the invention the canister includes a central tube which is perforated adjacent one end, a perforated bottom end plate, an imperforate top end plate, and an imperforate exterior tubular wall, said end plates being rigidly joined to the exterior and central tubes. The canister is separated into two interior chambers by an annular perforated partition. The bottom chamber is filled with a depth medium of filtering material such as wood wool, rayon fibers, or the like, on top of which rests a cathodic anode disc. The top chamber is provided with a chemical package including ion exchange beads and soluble corrosion prevention chemicals. The flow of liquid within the filter is through the inlet passages into the space between the top of the canister and the support plate, down between the outside of the canister and the housing to the bottom of the housing, upwardly in series through the perforated bottom end plate, the depth filtering media, the anode disc, the transverse partition into the chemical package, radially inwardly from the chemical package through the perforations in the central tube, upwardly through the central tube and thus out of the filter through the outlet neck.
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