Abstract: Described are methods, systems, and computer readable media for adjusting the speed control of a pump assembly. The method can include the steps of setting the speed of a first stroke of the pump assembly to a first value and setting the speed of a second stroke of the pump assembly to a second value, modifying the speed of the first stroke while the pump is engaged in an upstroke, and modifying the speed of the second stroke while the pump is engaged in a downstroke through manual or automatic configuration processes. The computer readable medium can include an application that can be adapted to execute instructions that can configure the upstrokes and downstroke of the pump. Through these automatic or manual configuration parameters, a linear pump can execute fully configurable multiple speed settings within a stroke on the pump assembly, thus increasing the pump's efficiency irrespective of pump fillage.

Abstract: An aerosol generating device comprising a casing having a base end and a ainer end, with a firing primer mounted through the base end and extending into a propellant zone which contains a propellant. The firing primer is thereby detonationally connected to the propellant. A diffuser plate is mounted inside of the casing on a side of the propellant zone opposite to the firing primer. A filler area inside of the casing is adjacent to the diffuser on an opposite side to the propellant zone. The filler area contains particles of a powder having interstitial void space between the particles. A frangible end seal is attached to the casing within the retainer end, with the frangible end seal being positioned adjacent to the filler area on an opposite side of the diffuser. When activated, propellant gases expand through the diffuser into the fill area deagglomerating and fluidizing the powder particles and increasing pressure until the end seal ruptures and releases an aerosol cloud.