Valve protection of engine valves in the LPG and CNG Engine

Valve protection is currently being hotly debated topic in connection with the reconstruction of alternative fuel engine

LPG / CNG when the combustion of alternative fuels there is a slight increase in temperature in the combustion chamber and that due to an increased thermal load of the motor, valves and valve seats. Protection can be solved in the following ways:

At present he is the clear market leader in electronic metering company VALVE - PROTECTOR. It is a German company that guarantees a high quality product. In combination with another German company ERC (manufacturer additives), is the most effective protection vetilů in your car. Tested on the German market.

For more information click on the logo VALVE - PROTECTOR.

1) Blending of gasoline - in the software of the control unit to turn on blending gasoline and set the blending percentage.

The assumption is that software control unit is equipped with this function.

2) The addition of additives - when the vehicle mounted device which dispenses additive into the engine to protect

the valves and valve seats. These are a few ways dosage:

A) Mechanical vacuum dosage - is a simple device that dispenses additive into the dropping

intake manifold either a single point or multipoint.

Advantages:

- Low price

Disadvantages:

- Always the same dosage (the same number of drops per minute) regardless of engine power. Instillation into the capillary additive is consumed manifold vacuum - that is at low speed at low engine loads and higher at high speed and at high engine loads lower

- The device dispenses additive even when running on gasoline,

- Not suitable for engine type VALVETRONIC, Valvematic and turbocharged engines with turbo.

B) Electronically controlled programmable dosing equipment - dispenses exactly as additive

Content of the engine and according to its load. This ensures full protection, for example by prolonged driving on the highway where the classic vacuum system paradoxically additive metered, because when the engine load is not required in the engine intake vacuum. In contrast, when CUT-OFF dosing is stopped. Utilising high quality materials is secured long-term reliable operation.

Advantages:

- Uniform dosing additives in its entirety engine power depending on the time of injection or gas engine speeds (dosage is programmed according to engine capacity and according to the used additives)

- Dispenses only when running on alternative fuel,

- Indication additive level in the container,

- Possibility of alternative drive off in consumption of additives,

- Suitable for motors VALVETRONIC, Valvematic and supercharged engines with turbo

- Monitoring function self-diagnosis.

B.1) possibility of dispensing both the intake and the single or skvenčně to each cylinder

B.2) possibility of dosing into low pressure gas branch:

                B.2.1) at a single point between the filter and the gaseous phase of the injector

                B.2.2) sequentially to each injector per cylinder.

Dosing in this manner also cleans and lubricates the gas injectors, thereby extending their life.

Disadvantages:

- The higher price compared to mechanical vacuum system.