NGK luettelo autot 2009-2010 (V-linja, LPG).pdf

LPG LaserLine –the bestfor gas operated enginesLPG LaserLine gives retailers and repair shops aproduct line with spark plugs developed especiallyfor gas operated engines. For both retailers andrepair shops this makes conversion and servicingnot only easier, but also more reliable.Drivers throughout Europe who convert their cars togas operation benefit from substantially lower fuelprices, due to the lower taxes on gas. The number ofconversions is increasing from year to year. Retailersand repair shops can profit from this development.Choosing the right spark plug in the past involvedmany factors, which often meant extra work. Becausethe combustion of gas is very different from thecombustion of gasoline: the gas/air mixture ismore difficult to ignite. The required ignition voltageincreases (see graph), together with the risk of failurefor the ignition coils. Also, the gas/air mixture burns atahigher temperature.Conventional electrode and housing materials corrodemore quickly in this environment, and the spark plugalso has to dissipate more heat. Until now, the bestsolution was to change from standard spark plugs toprecious metal spark plugs with adifferent heat rangeand to adjust the spark gap, in some cases.But now there isabetter alternative:special LPG LaserLine spark plugs. The product linecovers more than 90 percent of conversion-capableautomobiles in Europe and as many as 97 percent insome countries. Therefore, LPG LaserLine is theideal spark plug for practically every European carthat is converted.Required ignition voltage (kV)Required ignition voltage increases in gas operated engines35Conventional platinum spark plug3025201510501500 2000 2500 3000 3500 4000 4500 5000 5500 6000 6500 7000Engine speed (RPM)Super gasoline:Liquid gas (LPG):Spark gap 0.80 mmSpark gap 0.80 mm10 IS