| 摘要 |
Disclosed is a manifold for a replaceable fluid filter cartridge. The manifold possesses inlet and outlet passages and a housing. A first valve assembly is provided in the inlet passage. The housing is provided with first and second fitting mechanisms which have second and third valve assemblies. Fitting portions of the first and second fitting mechanisms are fitted into outer and inner flanges of the filter cartridge. Upon coupling the filter cartridge to the manifold, a valve stem of the second valve assembly is positioned on an upper end surface of the inner flange, and thereby a flow channel is defined. Thus, fluid flows through the inlet passage into the filter cartridge. Upon decoupling the filter cartridge from the manifold, the valve stem of the second valve assembly is separated from the upper end surface of the inner flange to shut off fluid flow from the inlet passage into the filter cartridge. Also, as the second fitting mechanism is removed from the inner flange, a flow path extending between the filter cartridge and a reservoir of the housing is blocked. And, the second valve assembly opens another flow path which directly connects the inlet passage to the reservoir. Therefore, even when the filter cartridge is decoupled from the manifold, fluid can be continuously introduced through the inlet passage into the reservoir of the housing.
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