As reflected in our vision “We lead the world in filtration making our planet a purer place”, we focus all of our expertise in the field of filtration on the goal of developing environmentally compatible drivetrain designs. One key technology for attaining sustainable power generation is fuel cell technology. The engineering of Hengst Filtration’s solutions guarantees that the fuel cell system will operate with maximum safety and optimized efficiency.
One example is the cathode filter designed by Hengst, which ensures that the intake air is purified from particles and catalyst toxins that are harmful to the fuel cell, such as sulfur dioxide (SO2), nitrogen oxides (NOX), ammonia (NH3) and volatile organic compounds (VOC). The treatment of the coolant to achieve a low level of electrical conductivity is performed by an ion exchanger. Hengst has developed an effective ion exchanger to keep electric conductivity in the coolant as low as possible and, thus, protect the fuel cell from any electrical short circuits. Liquid water in the hydrogen and air intake has a negative impact on the performance of the fuel cell. By ensuring that the liquid water is separated effectively, the separators designed by Hengst preserve and increase the performance of the fuel cell.
When developing their innovative products, the engineers and scientists at Hengst always focus on a holistic and integrative approach to find the right solution. #FiltrationForFuture is our guiding principle behind the drivetrain designs of the future!
- Cathode filter
- Ion exchanger
- Water separator
The essential components of the fuel cell are very sensitive to particles and harmful gases. As an example, noxious gases such as sulfur dioxide (SO2) may react with the catalytic converter and cause unwanted deposits, which may, in turn, cause damage to the fuel cell. The fuel cell’s high sensitivity to catalyst toxins is compounded by the use of costly precious metals such as platinum. Hengst Filtration has devised a cathode filter that effectively protects the fuel from all relevant noxious gases.
Experienced as a competent development partner for designing ion exchanger systems, Hengst can rely on a team of in-house experts as well as intelligent measuring equipment to create an ion exchanger that offers the perfect design.
The solubility of ionic components proves problematic in the coolant circuit of the fuel cell as it increases conductivity and may ultimately lead to electrical short-circuit effects and drops in fuel cell performance.
The ion exchanger engineered by Hengst provides for the safe operation of the coolant with minimum electrical conductivity, while the one-of-a-kind service concept scores high marks with its quick and clean service. What is more, Hengst offers integrative solutions in the area of valve and sensor technology that make it possible to control the fluids.
Proper water management is a key factor when it comes to avoiding liquid water inclusion and ensuring that the PEM fuel cell will operate at peak efficiency.
In this context, Hengst offers a new type of separator module for anode gas recirculation that combines the function of droplet water separation and gas drainage with an innovative valve technology.
Integrative approaches are a particular strong point of ours. Hengst Filtration is the perfect partner in everything that concerns the development of integrative module solutions for the recirculation and distribution of cooling medium at the fuel cell. We can draw on our long years of experience and expertise in developing, designing and manufacturing passive and active gas/liquid separator solutions that are currently setting the benchmark on the market.