Dictionary of Automotive Terms Abbreviations

DICTIONARY OF AUTOMOTIVE TERMS - "Ox"

Oxidation:

One of the processes by which enamel paint cures, by combining oxygen in the air with the paint film. This process dries and continues to harden enamel for several weeks. Oxidation also results in chalking in older paint.
A chemical reaction which increases the oxygen content of a compound or in which a compound or radical loses electrons, i.e., in which the positive valence is increased. Compare reduction
A form of corrosion caused by reacting a substance with oxygen. Rust (iron oxide) is a typical example.

Oxidation catalyst:: (OC) type of bead material in catalytic converter which aids in oxidation of CO and HC

Oxide:: A chemical compound of oxygen with another element.
Also See:
aluminum oxide
natural oxide skin
nitrogen oxides
nitrous oxide system
nitrous oxide
polyphenylene oxide

Oxidize:: Action where surface of metal is combined with oxygen in the air to produce rust, scale, etc.

Oxidizer:: A compound which gives up oxygen easily, removes hydrogen from another compound, or attracts electrons. Also see trap oxidizer

Oxidizing:: The combining of oxygen with any other substance. For example, a metal is oxidized when the metal is burned, i.e., oxygen is combined with all the metal or parts of it.

Oxidizing agent:: A compound which gives up oxygen easily, removes hydrogen from another compound, or attracts electrons

Oxidizing catalyst:: A catalyst which decreases CO and HC levels using excess air. Compare reducing catalyst

Oxidizing converter:: A converter with a conventional oxidation catalyst that needs a secondary air supply to convert hydrocarbons and carbon monoxide to carbon dioxide and water; does not control NO_x. Compare single-bed oxidizing converter

Oxidizing flame:: Flame produced by an excess of oxygen in the torch mixture, leaving some free oxygen which tends to burn the molten metal.

Oxyacetylene welding:: See oxygen-acetylene welding. Also called gas welding

Oxygen:: A gas formed of the element oxygen. When it very actively supports combustion it is called burning; when it slowly combines with a substance it is called oxidation.

Oxygen acetylene cutting:: Cutting metal using the oxygen jet which is incorporated with an oxygen-acetylene, preheating flame or flames.

Oxygen-acetylene welding:: A method of welding, using as a fuel a combination of the two gases - oxygen and acetylene.

Oxygenated gasoline:: Any fuel with a mixture of ethyl or methyl alcohol. The addition of oxygen causes a slightly leaner fuel-air mixture which is especially beneficial with older cars.

Oxygen corrosion:: An electrochemical corrosion caused by neutral or alkaline electrolytes in which, during the cathodic reaction, oxygen is reduced to hydroxide

Oxygen cylinder:: A specially built container manufactured according to I.C.C. Standards and used to store and ship certain qualities of oxygen.

Oxygen-hydrogen flame:: The chemical combining of oxygen with the fuel gas hydrogen.

Oxygen-LP gas flame:: Chemical combining of oxygen with the fuel gas LP (liquefied petroleum).

Oxygen regulator:: An automatic valve used to reduce cylinder pressures to torch pressures and to keep the pressures constant. They are never to be used as acetylene regulators.

Oxygen sensor:: A pollution control device which measures the amount of oxygen in the exhaust stream and sends that information the ECM. It controls the fuel-air mixture entering the engine. Also called a lambda sensor, exhaust oxygen sensor, or an O2 sensor

Oxygen sensor system thermo-switch:: A sensor of a fuel injection system that is usually located in a coolant hose to provide a coolant temperature signal to the ECM

Oxyhydrogen gas:: A highly explosive mixture of oxygen and hydrogen, generated during charging of lead-acid batteries. Compare gassing

Sign My Guestbook