What is a piston ring?
A piston ring is a split ring that fits into a groove on the outer
diameter of a piston in a reciprocating engine such as aninternal
combustion engine or steam engine.
Most automotive pistons have three rings: The top two while also
controlling oil are primarily for compression sealing (compression
rings); the lower ring is for controlling the supply of oil to the
liner which lubricates the piston skirt and the compression rings
(oil control rings). At least two piston rings are found on most
piston and cylinder combination. Typical compression ring designs
will have an essentially rectangular cross section or a keystone
(right angled trapezoidal) cross section. The periphery will then
have either a barrel profile (top compression rings) or a taper
napier form (second compression rings or scraper rings). There are
some taper faced top rings and on some old engines simple plain
faced rings were used.
Piston Rings critical quality
The piston might be a fairly loose fit in the cylinder. If it were
a tight fit, it would expand as it got hot and might stick tight in
the cylinder. If a piston sticks (seizes) it could cause serious
damage to the engine. On the other hand, if there is too much
clearance between the piston and cylinder walls, much of the
pressure from the burning gasoline vapour will leak past the piston
(a condition known as blow-by) and into the crankcase, and the push
on the piston from combustion will be much less effective in
delivering power.
Product description
Located between the cylinder and the piston, piston rings are
necessary components that allow the engine to operate efficiently.
1. Piston rings maintain gas compression between the piston and the
cylinder wall.
2. Piston rings usually make necessary minimum lubricating oil film
for preventing scuffing.
3. Piston rings transfer heat from the piston crown to the
cylinder.
4. Piston rings prevent the piston from knocking on the cylinder
wall.
Maojia Industry’s piston rings advantages
1. Years of OEM experience in China and overseas.
2. High quality material and superior steel.
3. Specification perfectly match different engine.
4. Experienced engineers and technical team.
5. Advanced manufacturing equipment, R&D software and test
machine.
6. 100% tested for size and performance before shipment.
7. Wide range proudcts meet customers’ requirements.
