Glossary “SRI” Definition:
Service Reminder Indicator
s
SR
Glossary “SR” Definition:
Silver
squish
Glossary “squish” Definition:
The action where some compressed air/fuel mixture is pushed out of a decreasing space between the piston and cylinder head of the combustion chambers in some engines.
squiish area
Glossary “squiish area” Definition:
Narrow space between the piston and the cylinder head. As the piston approaches TDC, the mixture squishes or shoots out of the suish area across the combustion Chamber. Mixture turbulence results and improve combustion.
squirrel cage
Glossary “squirrel cage” Definition:
Type of fan design with multpial veins or fins, used in heater and A/C applications.
squirt hole
Glossary “squirt hole” Definition:
1). A hole in the side of a connecting rod in an OHV engine which squirts oil toward the camshaft. 2). A hole in the pin end of a connecting rod to squirt oil to the underside of a piston for cooling.
squeal
Glossary “squeal” Definition:
A continuous high-pitched noise.
squeegee
Glossary “squeegee” Definition:
1). A flexible rubber block used to apply glazing putty and light coats of body filler. 2). Metal-backed rubber blade having a handle used to clean windshields.
squeeze type resistance spot welding
Glossary “squeeze type resistance spot welding” Definition:
Type of welding that uses electric current through the base metal to form a small, round wled between the base metals.
squib
Glossary “squib” Definition:
A pyrotechnic term used for a fire cracker that burns but does not explode. The squib starts the process of air bag deployment
square wave
Glossary “square wave” Definition:
Repetitive waveform whose shape is essentially square or rectangular, usually with equal on and off times.
square cut piston seal
Glossary “square cut piston seal” Definition:
Fixed seal for a caliper piston that has a square cross section.
squash area
Glossary “squash area” Definition:
Term used for quench area.
squeak
Glossary “squeak” Definition:
A high-pitched noise of short duration.
SPX
Glossary “SPX” Definition:
Tool and equipment manufacturer
square
Glossary “square” Definition:
Relationship between the bore and the stroke when the bore is the same dimension as the stroke.
square engine
Glossary “square engine” Definition:
An engine in which the bore and stroke dimensions are the same.
spur gear
Glossary “spur gear” Definition:
A transmission or differential gear having teeth cut straight across its face, parallel to the rotational axis.
sprocket pitch diameter
Glossary “sprocket pitch diameter” Definition:
Pitch diameter of a sprocket used in a synchronous belt drive that coincides with the belt pitch line and is always greater than the sprocket outside diameter.
sprung weight
Glossary “sprung weight” Definition:
Mass of the vehicle that is supported by the springs, including the body, engine and transmission.