Cummins Emission Solutions Inc.

Kay Schmidt

Thomas Betz

Dirk Hinze

Friedrich Johann Zapf

Ralf Rohrmueller

Andreas Lannig

Julian Nicolas Aljoscha Raupp

A filtration assembly structured to filter reductant includes an outer housing and an inner housing. The inner housing is positioned within the outer housing. The inner housing is structured to contain the reductant and operable between a first state in which the inner housing has a first volume and a second state in which the inner housing has a second volume that is larger than the first volume, the inner housing including an end face. The inner housing is separated from the outer housing by a gap when the inner housing is in the first state. A volume of the gap decreases as the inner housing transitions from the first state to the second state and increases as the inner housing transitions from the second state to the first state.

Filtration assembly for use in aftertreatment systems for internal combustion engines

A valve comprising a base plate defining an inlet and outlet passageway. A cover plate is disposed on the base plate and defines a first and second channel. A pressure plate is disposed on the base plate and includes a first anchoring portion, a first sealing portion, and a first biasing portion connecting the first anchoring portion and the first sealing portion. Furthermore, a suction plate is disposed on the base plate and includes a second anchoring portion, a second sealing portion, and a second biasing portion connecting the second anchoring portion to the second sealing portion. The valve is movable between a first configuration, where the first sealing portion is distal to first channel and the second sealing portion is proximal to inlet passageway, and a second configuration, in which the first sealing portion is proximal to first channel, and second sealing portion is distal to inlet passageway.

Valve system

Growing community of inventors

Lohr a. Main, Germany

Kay Schmidt