Glossary “thermosetting plastics” Definition:
Plastics which are heated during manufaturing and molded into a fixed shaped. After manufacture, the shape can not be altered by heat.
thermoplastic seizure
Glossary “thermoplastic seizure” Definition:
When coolant has found its way into the engine oil, it can seize the engine.
thermoplastic plastics
Glossary “thermoplastic plastics” Definition:
Plastics that are flexible; that is, they can bend or flex and recover their shape quickly. They are affected by high heat.
thermometer
Glossary “thermometer” Definition:
Device used to measure temperature.
thermoelectric principle
Glossary “thermoelectric principle” Definition:
Production of a voltage potential created by heating the connection of two dissimilar metals.
thermoelectric meters
Glossary “thermoelectric meters” Definition:
Type of dash instrument that uses heat created by current flow through the gauge to deflect the indicator needle
thermocouple
Glossary “thermocouple” Definition:
Thermoelectric couple used to measure temperature.
thermistor
Glossary “thermistor” Definition:
Resistor that changes it’s resistance in relationship to the temperature surrounding it. May be a PTC or NTC.
thermic reaction
Glossary “thermic reaction” Definition:
Chemical reaction between metal oxide and aluminum that produces superheated molten metal and a slag containing aluminum oxide.
thermal vent valve
Glossary “thermal vent valve” Definition:
Temperature sensitive valve assembly located in the canister vent line. Closes when the engine is cold and opens when hot. Prevents fuel tank vapors from being vented through the carburetor fuel bowl.
thermal stability
Glossary “thermal stability” Definition:
Ability of a device to reach and maintain a specific temperature for a long period of time.
thermal reactor
Glossary “thermal reactor” Definition:
An obsolete early attempt of an emissions-control device comprising a large, heavy, exhaust manifold in which hydrocarbons and carbon monoxide that escape from the cylinders are oxidized.
thermal paint
Glossary “thermal paint” Definition:
A paint that either melts or changes color when a specific temperature has been reached.
thermal limiter
Glossary “thermal limiter” Definition:
Electrical or mechanical device, similar to a fuse, that opens at 300¡ãF to control the intensity or quantity of heat.
thermal fuse
Glossary “thermal fuse” Definition:
Temperaturessensitive fuse link designed so that it melts at a certain temperature and opens a circuit.
thermal efficiency
Glossary “thermal efficiency” Definition:
The ratio of how effectively an engine converts a fuel’s heat energy into usable work.
thermal efficience
Glossary “thermal efficience” Definition:
Difference between potential and actual energy developed in a fuel measured in Btu’s per pound or gallon (kilogram or liter).
thermal delay fuse
Glossary “thermal delay fuse” Definition:
Device once used in conjunction with the compressor protection switch that heats and blows a fuse to stop a compressor action during abnormal operation. Also found in electrical circuits that open in response to higher than rated current flow.
thermal cutting
Glossary “thermal cutting” Definition:
Cutting process that removes metal by localized melting, burning, or vaporizing of the work piece.
thermal
Glossary “thermal” Definition:
Pertaining to heat or the energy of heat..