Friday, 19 April 2024, 12:28 AM
Site: IMI eLearning
Course: IMI eLearning (IMI eLearning)
Glossary: Automotive Glossary
P
Power split hybridA combination of a series and parallel hybrid that uses a mechanical splitting device. |
Power StrokePart of the four-stroke cycle following combustion. |
PowertrainTerm used to describe the engine, transmission and driveline components as a unit. |
PPEPersonal protective equipment |
PPMParts Per Million |
Pre-ignitionSpontaneous ignition in a petrol engine that occurs before the controlled ignition point. Can be caused by an overheated engine, incandescent particles in the combustion chamber or incorrect fuel. |
PreignitionSpontaneous ignition in a petrol engine that occurs before the controlled ignition point. Can be caused by an overheated engine, incandescent particles in the combustion chamber or incorrect fuel. |
PreloadAdditional tightening of a bearing or component after the backlash or free play has been eliminated. Used to eliminate backlash after the bearings have bedded in. Usually set by a Nm or angular torque. |
PresentationThe way in which something is displayed. |
PressurePressure is the product of a force multiplied by the area on which the force is applied. The standard unit of pressure is the Pascal which is equivalent to one N/m2. |