초록 ▼

A coolant filter for use in filtering a coolant solution which flows through the coolant filter includes a filter housing assembly which is made up of an outer housing which is crimped to a nutplate which defines an internally threaded flow outlet. A generally cylindrical filter element is positione

A coolant filter for use in filtering a coolant solution which flows through the coolant filter includes a filter housing assembly which is made up of an outer housing which is crimped to a nutplate which defines an internally threaded flow outlet. A generally cylindrical filter element is positioned inside of the filter housing assembly and a first endplate is bonded to the end of the filter element which is adjacent to the nutplate. An endplate member is provided for attachment to the opposite end of the filter element and is configured in such a way so as to define an interior chamber where supplemental coolant additive pellets are stored. A closing plate is applied across the open end of the interior chamber so as to create an enclosed chamber for the supplemental coolant additive pellets. A slow release mechanism is provided for controlling the rate of release of the supplemental coolant additive from the enclosed chamber into the coolant solution. In one embodiment of the present invention, the slow release mechanism includes a diffusion tube which defines a diffusion orifice. In another embodiment of the present invention, the slow release mechanism includes a semipermeable (or osmotic) membrane wafer. In both instances, the slow release mechanism is positioned between the source of supplemental coolant additive and the flow outlet in the nutplate.

대표청구항 ▼

A coolant filter for use in filtering a coolant solution which flows through the coolant filter and being designed for the release of a supplemental coolant additive into said coolant solution, said coolant filter comprising: a filter housing assembly defining a flow outlet and flow inlet means; a f

A coolant filter for use in filtering a coolant solution which flows through the coolant filter and being designed for the release of a supplemental coolant additive into said coolant solution, said coolant filter comprising: a filter housing assembly defining a flow outlet and flow inlet means; a filter element positioned inside said filter housing assembly; an endplate member which is configured with an interior chamber, said endplate member in cooperation with said filter element defining an interior space for receiving filtered coolant solution; a source of supplemental coolant additive positioned within said interior chamber; and slow release means disposed between said source of supplemental coolant additive and said flow outlet for permitting a portion of said filtered coolant solution from said interior space to enter said interior chamber to dissolve said supplemental coolant additive and for controlling the rate of release of said supplemental coolant additive from said interior chamber into said filtered coolant solution in said interior space.