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2. Spark plug - Wikipedia

   en.wikipedia.org/wiki/Spark_plug

   Spark plug with single side electrode An electric spark on the spark plug. A spark plug (sometimes, in British English, a sparking plug, [1] and, colloquially, a plug) is a device for delivering electric current from an ignition system to the combustion chamber of a spark-ignition engine to ignite the compressed fuel/air mixture by an electric spark, while containing combustion pressure within ...

3. Wasted spark system - Wikipedia

   en.wikipedia.org/wiki/Wasted_spark_system

   Ignition system of a flat-twin Citroën 2CV. A wasted spark system is a type of ignition system used in some four-stroke cycle internal combustion engines.In a wasted spark system, the spark plugs fire in pairs, with one plug in a cylinder on its compression stroke and the other plug in a cylinder on its exhaust stroke.

4. Iridium - Wikipedia

   en.wikipedia.org/wiki/Iridium

   Iridium compounds are used as catalysts in the Cativa process for carbonylation of methanol to produce acetic acid. [92] [93] Iridium complexes are often active for asymmetric hydrogenation both by traditional hydrogenation. [94] and transfer hydrogenation. [95] This property is the basis of the industrial route to the chiral herbicide (S ...

5. Dual ignition - Wikipedia

   en.wikipedia.org/wiki/Dual_ignition

   A simple form of partial dual ignition on some amateur-built aircraft uses a single spark plug, but duplicates the coil and pick-up for better redundancy than traditional single ignition. [ 9 ] A further form of partial dual ignition (such as on the Honda VT500 ) is for each cylinder to have a single HT coil which sends the current to one plug ...

6. Iridium compounds - Wikipedia

   en.wikipedia.org/wiki/Iridium_compounds

   Iridium compounds are compounds containing the element iridium (Ir). Iridium forms compounds in oxidation states between −3 and +9, but the most common oxidation states are +1, +2, +3, and +4. [2] Well-characterized compounds containing iridium in the +6 oxidation state include IrF 6 and the oxides Sr 2 MgIrO 6 and Sr 2 CaIrO 6.

7. Chlorobis(cyclooctene)iridium dimer - Wikipedia

   en.wikipedia.org/wiki/Chlorobis(cyclooctene...

   Chlorobis(cyclooctene)iridium dimer is an organoiridium compound with the formula Ir 2 Cl 2 (C 8 H 14) 4, where C 8 H 14 is cis-cyclooctene. Sometimes abbreviated Ir 2 Cl 2 (coe) 4 , it is a yellow, air-sensitive solid that is used as a precursor to many other organoiridium compounds and catalysts.