Symbol explanation  
The right plug  
ENKER spark plugs  
Conditions of s. plugs  
Comparison chart  
Catalog  
   
 
RESISTIVE SPARK PLUGS

The ever increasing use of modern radio - diffusive and TV
receivers and electronic parts in automobiles
(this particularly applies to automobiles having electronically controlled fuel injection) have brought requirements for supression of electromagnetic radiation of all potential sources causing interferences are created in the secondary circuit of the ignition system, i.e. its sparking spots ( spark plugs, ignition distributor contact and platinum points ) Technical regulations of developed countries impose very high radio interference protection level. Suppresion of this interference source (on spark plugs) has been mainly done by cables and fittings with resistance installed.The basic disadvantage of such suppression method is that suppression elements are far from the interference source. This facilitates far more efficient suppression of interferences (elimination of noise, sputtering, ets.). Besides, the fitted resistor lowers the electrode errosion and therefore extendes the spark plug life. Resistive spark plugs ENKER have suffix "R" following the numerical type designation.

S. PLUGS WITH COPPER-CORED ELECTRODES-THERMOELASTIC
Spark plugs of high technological level, having electrodes with copper - core and nickel-chrom alloy envelope. This provides better heat conductivity, i.e. faster achievement of the selfcleaning temperature and elimination of carbon (soot) deposits. Also, at higher temperatures, heat dissipation is much less frequent. Thermoelastic ENKER Spark Plug with copper - cored central electrode works at lower temperatures than a standard one. This means it is colder, what is in direct relation with lower errosion. Thermoelastic spark plugs ENKER make the heat range wider, provide betteer cold start, acceleration without load, optimum fuel consumption (more fuel is burned due to stronger spark), more efficient under exremely heavy conditions and significantly longer life time. Thermoelastic ENKER spark olugs have suffix "C" following the numerical type designation.
 
 
  SPARK PLUGS WITH MORE ELECTRODES
    Development of automobile industry has recently
improved to a high extent so that requirements
for servicing of automobile assemblies and parts have been brought down to minimum. In order to increase spark plug life we have introduced spark plugs with several electrodes. Surfaces of side and central electrodes are considerably increased and therefore the errosion degree is decreased. This makes spark plug gap more stable in an extended period and therefore the voltage required for the mixture ignition is almost constant. This also provides more reliable engine start (particularly in cold weather), lower fuel consumption and considerably longer spark plug life time.



ENKER spark plugs with 2 electrodes have suffix "U" following the numerical type desidnation.
ENKER spark plugs with 3 electrodes have suffix "D" following the numerical type desidnation.
ENKER spark plugs with 4 electrodes have suffix "Q" following the numerical type desidnation.
     
    SPARK PLUGS WITH PLATINUM TIPPED ELECTRODES
  Central electrode of these spark plugs is made of a highly wear resistant platinum alloy by a special process. Besides, this platinum alloy is very good heat and electricity conductor. Central electrode wear rate, caused by corrosion due to combustion and errosion due to sparking, has been considerably reduced. In this way, ignition conditions between spark plug replacement intervals remain approximaterly the same i.e. optimum electrode gap and ignition voltage required remain almost constant. Characteristics of the power secondary circuit are improved and the existing voltage reserve is maintained. That is why the electrodes may be relatively thin end consequently a spark can easily pass through the mixture. By extending the insulator nose and fitting the platinum tipped electrode, the insulator nose can easily be heated up, i.e. selfcleaning temperature is easily achieved (to eliminate combustion deposits) at a lower r.p.m. and heat dissipation is increased under high engine loads. Platinum spark plugs provide an easier engine start even with lower accumulator power, which offers optimum fuel consumption and more efficient engine run under all operating conditions.