Thursday, 25 April 2024, 11:02 PM
Site: IMI eLearning
Course: IMI eLearning (IMI eLearning)
Glossary: Automotive Glossary
H
HEGOHeated Exhaust Gas Oxygen Sensor. Also EGO Exhaust Gas Oxygen Sensor, EOS Exhaust Oxygen Sensor and Lambda sensor. Provides information to the fuel system ECU on the oxygen content in the exhaust gas. |
HEIHigh Energy Ignition. A distributor ignition system using electronic control of the coil secondary output. |
Helical GearA gear with teeth cut at an angle. |
Helical RotorA turbine or compressor in a turbocharger often has vanes that are helically shaped. |
Helical SpringMetal spring used in vehicle suspension. Also known as a coil spring. |
HemisphereA sphere is a perfectly round geometrical object in three-dimensional space, such as the shape of a round ball - a hemisphere is half a sphere |
HeptaneA fuel used in research tests as a comparison when determining the octane rating of fuels. Octane value of zero. |
HertzThe number of oscillations per unit of time. The SI unit for frequency is the Hertz which equals one oscillation per second. |
HexShort for hexagonal. |
HgMercury |