Metal Elastomer CHG

Metal-elastomer cylinder-head gaskets from ElringKlinger: a customized, strong and durable sealing system consisting of metal carriers with vulcanized elastomer profiles. The basis for outstanding performance of the metal-elastomer cylinder-head gasket is the innovative distribution of compressive strength in the engine block / cylinder head region - specific compressive strength in the combustion chamber area and a low compressive strength in the liquid area. The metal-elastomer cylinder-head gasket is the leading sealing technique for heavy-duty engines in the commercial vehicle sector - for innovative drive concepts with four-valve technology, new injection systems, lightweight construction, higher ignition pressures and optimized engine performance.

Even under extreme conditions, the metal-elastomer cylinder-head gasket never fails to function with absolute reliability: ignition pressures up to 180 bar, engine outputs in excess of 2000 kW and an engine service life of more than 1,500,000 km present no problem whatsoever.

As one of the world's leading manufacturers of cylinder-head gaskets for commercial vehicles, ElringKlinger is committed to constantly improving its metal-elastomer system, providing the right engineering solution for this challenge. For instance at present, the top pressure limit is being redefined at 220 bar.


Cylinder-head gaskets for commercial vehicles, with vulcanized elastomer.

The solution with a single layer. Metal-elastomer cylinder-head gaskets can have one or more layers. The perfect interaction of the individual technical components guarantees that the system functions reliably.

Elastomer sealing lips
Elastomer sealing lips provide the seal for coolant and oil. Their material and geometry are specially adapted to each engine.

Carrier layer
Together with the combustion chamber bead, this layer determines the compressed thickness and the gas seal. Non-corroding steels, micro-alloyed steels, stainless steel or spring steel can be used, depending on the engine requirements.

Combustion-chamber base layer
The combustion-chamber base layer is a design element that serves to increase the compressive strength at the combustion chamber. The bolt forces are thus transferred to the combustion chamber area in a controlled manner.

Full bead
This generates a balanced compressive strength along the edge of the combustion chamber.

Diaphragm
The flow of coolant can be controlled by guiding the flow cross-sections over vulcanized diaphragms.