Cummins Filtration Ip, Inc.

Cummins Flitration Ip, Inc.

Yiming Zhang

Ismail C Bagci

Wassem Abdalla

Abby True-Dahl

Chad T Brummitt

Jeffrey A Husband

A 'no filter, no run' filtration system that is designed to verify that an appropriate filter cartridge is installed. A flow control sleeve is provided on a standpipe to control the flow of fluid, for example fuel, into the standpipe. The sleeve can be axially moveable between closed and open positions, with one or more members on an installed filter cartridge designed to release the sleeve to permit the movement from the closed position to the open position to allow fluid flow. A spring acts on the sleeve to bias the sleeve back to the closed position upon removal of the filter cartridge. The sleeve can also be designed without axial movement, but nonetheless is configured to be opened and closed to control fluid flow into the standpipe.

Fuel filter assembly with flow restriction sleeve

A 'no filter, no run' filtration system that is designed to verify that an appropriate filter cartridge is installed. A flow control valve is provided on a standpipe to control the flow of fuel into the standpipe. The valve has a component that has a first position at which any flow through the flow passage past the valve is insufficient to permit engine operation, and a second position at which a greater amount of flow through the flow passage is permitted by the valve in an amount sufficient to permit engine operation, and the component rotates about the longitudinal axis when it moves from the first position to the second position and from the second position to the first position.

Fuel filter assembly with flow restriction valve

Growing community of inventors

Cookeville, TN, United States of America

Yiming Zhang