Although not as damaging as having a too low rated plug, the effects can still be detrimental to your engine. If a spark plugs temperature remains too low it can cause loss of ignition spark due to deposit build up on the firing end, which in turn will leave your engine struggling / do...
whereby a region of the space in which the amount of the seal6is relatively small becomes a weak point. As a result, when a resultant spark plug is used on an actual engine, because of vibration, thermal expansion caused by high temperature, or other causes, the center electrode4may rattl...
In order, however, to secure more perfect gas tightness when the plug is used under such high temperature and high pressure conditions as are met with in airplane service the upper end of the shell or casing is provided with a circumferentially extending groove whereby the wall thereof is reduc...
Along with spark plugs, NGK Spark Plug Co., Ltd. also develops oxygen, temperature and knock sensors, which improve performance and eco-efficiency of the automobile. The company’s spark plugs have been used by almost all automotive manufacturers domestically and worldwide, and the company is pr...
This is explained firstly by increased contact area and heat transfer to the ground electrodes in the initial period of flame kernel growth. Secondly, it is well known that as a spark channel forms between the two spark electrodes, the local resistance increases as the localized temperature grows...
Here, NOx emissions are mainly influenced by in-cylinder pressure since the combustion temperature, the main factor for NOx emissions, is proportional to in-cylinder pressure and combustion speed27. From this knowledge, the slight difference in NOx emissions was due to measurement error since there...
Grand Winners Directory Welcome to the Directory of all the Spark Winners, from our first year in 2007 to present. You may also review all of their winning work in the Galleries and every Spark Juror here.
As will be explained in Chapter 7, the optimum spark advance varies with the intake manifold pressure, RPM, and temperature. However, in order to generate a spark at the correct spark advance, the electronic engine control must have a measurement of the crankshaft angular position within an ...
A spark plug shell 43 is carried by the rotary carrying member 21 into a position between the jaws 40, 41 while the jaws are separated by the cams 52 acting through the lever 48 as above explained to compress the spring 44, and while the left hand end of the lifting member 34 is dow...
the same as heretofore explained. The material used is commonly heated to a temperature of around 100 to 150 degrees centigrade before being supplied to the plug casing, and the plug with the lining molded in place is commonly kept at a temperature of around 150 degrees centigrade for around ...