Patent ID: 11857899
Assignee: PLAS-FIT LTD.
Field: Chemical engineering (Chemistry)
Classification: CPC B | IPC B

Claim 9:
10. An internal fluid diverter for a self-cleaning fluid filter apparatus the filter apparatus having a filtering phase and a cleaning phase, the fluid diverter having a cylindrical body including an upper face, a lower face and perimeter surface, said cylindrical body having a open central lumen,
a. said upper face is adapted to be securely associated within a fluid filter housing; said upper surface is provided to associate with a fluid diverter controller disposed external to said fluid filter housing;
b. said lower face adapted to receive and be in fluid communication with a spine assembly of said fluid filter apparatus; said lower surface having a central opening that is in fluid communication with said open central lumen; said central opening is surrounded by a peripheral channel disposed about the perimeter of said lower surface; said peripheral channel configured to be in fluid communication with the spine assembly;
c. said perimeter surface having a flow inlet portion defined along said surface, and at least three apertures extending from said perimeter surface including; an outlet aperture; a spine aperture and a pressure relief aperture;
i. said flow inlet portion configured to receive a flow of upstream un-filtered flowing fluid internal to the filter housing during the filtering phase;
ii. the outlet aperture configured to receive and convey a flow of downstream filtered flowing fluid external to the filter housing during the filtering phase;
iii. the spine aperture in fluid communication with the peripheral channel therein configured to receive and divert fluid flow into the peripheral channel during the filter cleaning phase, the peripheral channel is disposed along said lower surface and is in fluid communication with the spine assembly;
iv. the pressure relief aperture having an opening featuring a pressure relief piston assembly, wherein the pressure relief piston assembly is configured maintain said opening at least partially open during the filtering phase and to close said opening during the filter's cleaning phase; wherein said pressure relief piston assembly provides for maintaining pressure equalization between said outlet aperture and said pressure relieve aperture by opening and/or closing said opening.