Saturday, 27 April 2024, 5:01 PM
Site: IMI eLearning
Course: IMI eLearning (IMI eLearning)
Glossary: Automotive Glossary
P
Pinion ShaftA shaft on which a small gear runs. |
PinkingNoise heard from an engine when the ignition of fuel occurs too early (advanced) in the cycle. Also 'ping'. |
PintauxType of injector for an indirect injection engine. Similar to pintle but with additional small injection orifice for low engine speeds. |
PintleType of injector for an indirect injection engine. Uses a spring-loaded needle that is raised by fuel pressure to allow a spray of fuel to enter the pre-combustion chamber. |
PIPProfile Ignition Pick Up Signal. |
Pipe UnionA joint in a pipe. |
PistonReciprocating component, usually in the form of a cylinder closed at one end, that operates under fluid pressure within a smooth walled cylinder. In a reciprocating engine, gas pressure on the piston crown provides the prime force that is converted into rotating mechanical power by the crankshaft. |
Piston BlowTerm used to describe gases blowing past the piston rings. |
Piston CrownThe top of the piston. |
Piston RingSealing rings usually made of cast iron. Fitted on to a piston to make a gas tight seal. |