Hydrogen Fuel Cell Humidification Pump

This valveless piston pump precisely humidifies air going into the fuel cell by accurately recirculating deionized water created as a by product of the reaction. The accuracy and reliability of this function is important to the operation and efficiency of the fuel cell. The CeramPump model RHV variable speed pump with V200 controller features one moving part, no valves, and a ceramic and fluorocarbon fluid path.

Hydrogen rich fuel and air containing oxygen are injected into two chambers separated by a permeable proton exchange (PEM) membrane. Each hydrogen atom consists of one proton and one electron. The single proton of the hydrogen atom wants to join with the oxygen to form water and is drawn through the membrane leaving the electron behind. With the positively charged proton on one side of the membrane and the negatively charged electron on the other, the membrane creates an electrical difference that becomes a current.

Fluid Metering, Inc. (FMI), 5 Aerial Way Suite 500, Syosset, NY 11791. Tel: 516-922-6050; Fax: 516-624-8261.