How To Filter CNG Before It Goes Into Engine?

[wheeels1]

Greetings!

The question is with the use of regular CNG Regulators/Kits eg Landi Renzo GasPetro etc the unfiltered CNG gets into the the intake manifold and thus will also go to the valve seals etc.
This is obviously Not good for the Gasoline engine. It will not affect the engine immediately, however when the engine is driven 40-50,000km eventually it will start to deteriorate the Cylinder Head of the engine.

Can any of the worthy members give ideas about how to filter the CNG before it gets into the engine?
As an analogy we can take the example of regular gasoline/petrol filters which prevents contaminants getting into the engine?

Is there any way to install a CNG filter starting from the fuel tank all the way to the CNG regulator?

CNG filters are installed in the SIS kits eg Liana, however the question here is about the regular CNG kits?

Thanks

[waqas82]

Liana and new corlla cng has filter before injectors. Only company fitted cng.

[waqas82]

That is the reason , i have seen liana in original engine not overhauled yet at 2lacs km

[wheeels1]

Thanks for your reply,

however it would have been much more helpful had any one pointed towards a workable solution

[memad]

This filter is available at dealership of suzuki once I asked but do not remember the actua price it was 1300 or 2300 may be. It cleans the gas before it is injected to the engine.

[wheeels1]

Found the SOLUTION:

1. Firstly we are talking about the common CNG Kit ie which uses a mixer and a 3 stage Gas pressure reducer Regulator (eg Gas Petro/LandiRenzo etc). We are NOT discussing SIS kit(which injects CNG directly into each cylinder separately).
2. The 3 stage Gas Regulator has in built Filtration Mechanism which filters the CNG before it gets to the engine.
3. Thus the Gas which enters the Intake manifold of the vehicle is reasonably filtered.
4. Apart from this there is bolt/screw usually at the bottom of the regulator which is used to remove oil/accumulation from the regulator.

Hope this helps!

[shaizy007]

That is the reason , i have seen liana in original engine not overhauled yet at 2lacs km

Aisa is waja se nhi hua but proper maintenance se hota hay, one of my friends lancer also showing meter up to 2 lakh but still original and in good condition

[shaizy007]

First of all CNG already filterd hoti hay, us main jo oil hota hay wo CNG kit main sapatrate ho jata hay. is ke ilawa CNG main dust nahi hoti. so any further filtration is useless. if you are still not satisfied then you can easily use a filter like used in Motor Bikes before interring into intake. but it will effect on setting of CNG. because 2 filters will be involved, Air and CNG mixer will be upset because CNG filter will reduce its flow.

Simply, is sub ka koi faida nahi.