GAV-40 Gas Admission Valve Design
Fuel delivery modern reciprocating engines has been evolving for decades and recently, the GAV-40 gas admission valve from HUEGLI TECH was introduced for the purpose of setting even higher standards for fuel valve performance. Engine availability is a key performance indicator and operators are demanding longer run time between failure and overhaul.
Gas admission valves that leak or fail to precisely control fuel into the engine contribute to poor combustion, increased engine emissions into the environment and poor fuel economy. It’s not just a fuel valve anymore but rather a critical component in effective engine performance, fuel management and emissions control.
The GAV-40 gas admission valve is special because it uses an elastomer valve plate specifically designed by Cook Compression for HUEGLI TECH. The GAV-40 gas admission valve is different because it makes use of an elastomeric material to make the gas tight seal when the valve is closed. Elastomers offer a number of desirable advantages but none are more important than the ability to deform and change shape under load. Elastomers are well known for their ability to form leak free seals in the hydraulics industry and now this capability has been built into the mode GAV-40 gas admission valve. Over time, the opening and closing of the fuel valve causes wear in the parts that form the gas tight seal and when the sealing surface becomes damages, leaks occur and maintenance is required. The elastomeric sealing components dramatically increase run time and reliability because the elastomeric material can change shape and reconfigure itself to changing conditions and when the fuel quality is less than perfect (dirt in the gas), it’s good to know that the gas admission valve can take the punishment.
The whole point of using an elastomer rather than a rigid material is improve the ability of the valve to seal the gas when conditions are not perfect or when the parts are not new. Durability comes from implementing design changes or features that have the ability to operate when conditions changes. Because elastomers are flexible, the parts can adapt as the parts wear or as the surfaces become damaged over time from dirt or other solid contaminants in the gas. Run times for elastomeric fuel valves have exceeded 2 years of continuous duty without any leaks or degradation of performance. The GAV-40 gas admission valve offers reliable performance, lower maintenance costs and reduced emissions caused by leaking fuel valves while extending run time over traditional designs. It’s another example of how the engineers at HUEGLI TECH and their partners are improving the performance of your engines.
See more on the GAV product page