List of Latin-script trigraphs

A number of trigraphs are found in the Latin script, most of these used especially in Irish orthography.

A

⟨aai⟩ is used in Dutch to write the sound /aːi̯/.

⟨abh⟩ is used in Irish to write the sound /əu̯/, or in Donegal, /oː/, between broad consonants.

⟨adh⟩ is used in Irish to write the sound /əi̯/, or in Donegal, /eː/, between broad consonants, or an unstressed /ə/ at the end of a word.

⟨aei⟩ is used in Irish to write the sound /eː/ between a broad and a slender consonant.

⟨agh⟩ is used in Irish to write the sound /əi̯/, or in Donegal, /eː/, between broad consonants.

⟨aim⟩ is used in French to write the sound /ɛ̃/ (/ɛm/ before a vowel).

⟨ain⟩ is used in French to write the sound /ɛ̃/ (/ɛn/ before a vowel). It also represents /ɛ̃/ in Tibetan Pinyin, where it is alternatively written än.

⟨aío⟩ is used in Irish to write the sound /iː/ between broad consonants.

⟨amh⟩ is used in Irish to write the sound /əu̯/, or in Donegal, /oː/, between broad consonants.

Spark plug

A spark plug (sometimes, in British English, a sparking plug, 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 the engine. A spark plug has a metal threaded shell, electrically isolated from a central electrode by a porcelain insulator. The central electrode, which may contain a resistor, is connected by a heavily insulated wire to the output terminal of an ignition coil or magneto. The spark plug's metal shell is screwed into the engine's cylinder head and thus electrically grounded. The central electrode protrudes through the porcelain insulator into the combustion chamber, forming one or more spark gaps between the inner end of the central electrode and usually one or more protuberances or structures attached to the inner end of the threaded shell and designated the side, earth, or ground electrode(s).

NGK

NGK Spark Plug Co., Ltd. (日本特殊陶業株式会社, Nippon Tokushu Tōgyō Kabushiki-gaisha) is a public company established in 1936 and based in Nagoya, Japan. NGK manufactures and sells spark plugs and related products for internal combustion engines, along with ceramics and applicable products.

As of March 2007, the company employed 10,407 people, and operated a network of 7 liaison offices, 12 sales offices, 13 production sites and 2 technical centers worldwide. NGK Spark Plugs was founded as a spin-off of the spark plug division of NGK Insulators. Originally, NGK supplied most of its products to Japanese automakers. Today the company is the largest OEM sparkplug maker in the world.

NGK stands for Nippon (Japan) Gaishi (insulator) Kaisha (company).

Micro combined heat and power

NGK is a manufacturer of SOFC fuel cell micro combined heat and power units in the range 700W - 1 Kw.

US operations

Established in 1966 - NGK Spark Plugs (USA), Inc. was founded as a subsidiary of NGK Spark Plug Co, Ltd., of Japan. Its corporate headquarters was first located in California and then moved to its current location in Wixom, Michigan. The company produces spark plugs in Irvine, California, and produces both spark plugs and oxygen sensors in Sissonville, West Virginia.

Spark

Spark may refer to:

Physical sparks

Computer science

Entertainment