ASE Auto Maintenance and Light Repair
Terms & Definitions
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In an automatic transmission, a device used to prevent members of the planetary gearset from rotating.
Rate of the volume in the cylinder above the piston when the piston is at bottom dead center to the volume in the cylinder above the piston when the piston is at top dead center.
A compound or substance that can speed up or slow down the reaction of other substances without being consumed itself. In a catalyst converter, special materials platinum or palladium and rhodium in parentheses are used to promote combustion of an burned hydrocarbons and reduce carbon monoxide and nitrogen oxides in the exhaust gases.
A friction reducing bearing that uses a series of steel balls held between inner and outer bearing races, such as in a roller clutch.