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Machine component used to compress or contain expanding fluids in a cylinder
A piston is a component of reciprocating engines, reciprocating pumps, gas compressors, hydraulic cylinders and pneumatic cylinders, among other similar
Piston
Topics referred to by the same term
Look up piston in Wiktionary, the free dictionary. A piston is an engineering component of engines and pumps. Piston(s) may also refer to: Misnomer for
Piston_(disambiguation)
In optics, piston is the mean value of a wavefront or phase profile across the pupil of an optical system. The piston coefficient is typically expressed
Piston_(optics)
National Basketball Association team in Detroit, Michigan
The Detroit Pistons are an American professional basketball team based in Detroit. The Pistons compete in the National Basketball Association (NBA) as
Detroit_Pistons
Engine utilising one or more reciprocating pistons
reciprocating engine, more often known as a piston engine, is a heat engine that uses one or more reciprocating pistons to convert high temperature and high
Reciprocating_engine
Type of positive-displacement pump
A piston pump is a type of positive displacement pump where the high-pressure seal reciprocates with the piston. Piston pumps can be used to move liquids
Piston_pump
Combustion engine using disks compressing fuel in the same cylinder
opposed-piston engine is a piston engine in which each cylinder has a piston at both ends, and no cylinder head. Petrol and diesel opposed-piston engines
Opposed-piston_engine
Part of a reciprocating engine
A piston ring is a metallic split ring that is attached to the outside of a piston in an internal combustion engine or steam engine. The main functions
Piston_ring
Tool for kindling a fire
A fire piston, sometimes called a fire syringe or a slam rod fire starter, is a device of ancient Southeast Asian origin which is used to kindle fire.
Fire_piston
Engine in which fuel combusts with an oxidizer
force to components of the engine. The force is typically applied to pistons (piston engine), turbine blades (gas turbine), a rotor (Wankel engine), or
Internal_combustion_engine
System of operation used to provide energy to operate autoloading firearms
trap at the muzzle. This high-pressure gas impinges on a surface such as a piston head to provide motion for unlocking of the action, extraction of the spent
Gas-operated_reloading
Forced-air flow inside a tunnel caused by moving vehicles
Piston effect refers to the forced-air flow inside a tunnel or shaft caused by moving vehicles. It is one of numerous phenomena that engineers and designers
Piston_effect
Type of engine with no crank
A free-piston engine is a linear, 'crankless' internal combustion engine, in which the piston motion is not controlled by a crankshaft but determined by
Free-piston_engine
American composer (1894–1976)
Walter Hamor Piston, Jr. (January 20, 1894 – November 12, 1976), was an American composer of classical music, music theorist, and professor of music at
Walter_Piston
Link connecting the piston to the crank in a reciprocating piston mechanism
In a piston engine, a piston rod joins a piston to the crosshead and thus to the connecting rod that drives the crankshaft or (for steam locomotives) the
Piston_rod
Piston made with high-silicon alloy
A hypereutectic piston is an internal combustion engine piston cast using a hypereutectic aluminum alloy with silicon content greater than the eutectic
Hypereutectic_piston
Phase of an engine piston's travel
exhaust stroke), during which the piston travels from top to bottom or vice versa. The type of power cycle used by a piston engine (e.g. two-stroke engine
Stroke_(engine)
Assault rifle
The Colt Advanced Piston Carbine or Colt APC (internal product number P0923) is a lightweight modular 5.56mm caliber piston-operated, magazine fed carbine
Colt_Advanced_Piston_Carbine
Internal combustion engine type
the piston, one up and one down, in one revolution of the crankshaft in contrast to a four-stroke engine which requires four strokes of the piston in two
Two-stroke_engine
Closed-cycle regenerative heat engine
space (cylinder). As the fluid expands, mechanical work is extracted by a piston, which is coupled to a displacer. The displacer moves the working fluid
Stirling_engine
Positive-displacement pump
An axial piston pump is a positive displacement pump that has a number of pistons in a circular array within a cylinder block. It can be used as a stand-alone
Axial_piston_pump
Effect in internal combustion engines
mixture as the piston approaches top dead centre (TDC). In an engine designed to use the squish effect, at top dead centre the piston crown comes very
Squish_(piston_engine)
Fluid control device using linear motion of a piston in a cylinder
A piston valve is a device used to control the motion of a fluid or gas along a tube or pipe by means of the linear motion of a piston within a chamber
Piston_valve
2025–26 NBA season by team
The 2025–26 Detroit Pistons season was the 85th season of the franchise, the 78th in the National Basketball Association (NBA), and the ninth in Midtown
2025–26 Detroit Pistons season
2025–26_Detroit_Pistons_season
Political party in the Philippines
Mayo Uno (KMU). Internationally, PISTON is affiliated with the International Transport Workers' Federation. PISTON is a national federation of drivers
PISTON_(transport_group)
Pin that holds connecting rod to piston head
S. English piston pin) connects the piston to the connecting rod, and provides a bearing for the connecting rod to pivot upon as the piston moves. In very
Gudgeon_pin
Device used to pump gases at high pressure
A reciprocating compressor or piston compressor is a positive-displacement compressor that uses pistons driven by a crankshaft to deliver gases at high
Reciprocating_compressor
Method for deriving motion equations using calculus
The reciprocating motion of a non-offset piston connected to a rotating crank through a connecting rod (as would be found in internal combustion engines)
Piston_motion_equations
Instrument in the oboe family
The piston (Breton: pistoñ, English phonetic "pist-on") is a type of oboe invented by Breton musician, teacher, and luthier Youenn Le Bihan in 1983. The
Piston_(music)
A radial piston pump is a form of hydraulic pump. The working pistons extend in a radial direction symmetrically around the drive shaft, in contrast to
Radial_piston_pump
Piston engine component which connects the piston to the crankshaft
connecting rod, also called a 'con rod', is the part of a piston engine which connects the piston to the crankshaft. Together with the crank, the connecting
Connecting_rod
Line of gaming PCs
hardware company Xi3 Corporation introduced a prototype modular PC codenamed "Piston". This unit was one of several possible designs that Valve was looking as
Steam_Machine
Combustion engine using pistons facing to the sides on a common crankshaft
A flat engine is a piston engine where the cylinders are located on either side of a central crankshaft. Flat engines are also known as horizontally opposed
Flat_engine
Engine configuration
A swing-piston engine is a type of internal combustion engine in which the pistons move in a circular motion inside a ring-shaped "cylinder", moving closer
Swing-piston_engine
Form of valve within a steam engine or locomotive
Piston valves are one form of valve used to control the flow of steam within a steam engine or locomotive. They control the admission of steam into the
Piston_valve_(steam_engine)
The piston-cylinder apparatus is a solid media device, used in Geosciences and Material Sciences, for generating simultaneously high pressure (up to 6
Piston-cylinder_apparatus
Average speed of the piston in a reciprocating engine
The mean piston speed is the average speed of the piston in a reciprocating engine. It is a function of stroke and RPM. There is a factor of 2 in the
Mean_piston_speed
Volume swept by all of the pistons
displacement is the measure of the cylinder volume swept by all of the pistons of a piston engine, excluding the combustion chambers. It is commonly used as
Engine_displacement
liquid piston compressor, ionic compressor or ionic liquid piston pump is a hydrogen compressor based on an ionic liquid piston instead of a metal piston as
Ionic liquid piston compressor
Ionic_liquid_piston_compressor
Coffee brewing device
A French press, also known as a cafetière, cafetière à piston, caffettiera a stantuffo, press pot, coffee press, or coffee plunger, is a coffee brewing
French_press
Device for drawing and blowing air
piston bellow used to lift water from one level to another. A piston is enclosed in a rectangular box with a handle coming out one side. The piston edges
Bellows
which uses no tools. Piston-ring compressors are strap wrenches that evenly squeeze (compress) the piston rings around a piston long enough to slide it
Strap_wrench
Piston engine with eight cylinders in V-configuration
A V8 engine is an eight-cylinder piston engine in which two banks of four cylinders share a common crankshaft and are arranged in a V configuration. The
V8_engine
Thermodynamic cycle
engine, used opposed pistons. The second and best-known design was the cycle engine, which used an over-center arm to create four piston strokes in one crankshaft
Atkinson_cycle
Proposed airliner project
an American piston-engined airliner project by Douglas Aircraft. A concept developed more than a decade before the DC-8 jetliner, the piston-engined DC-8
Douglas DC-8 (piston airliner)
Douglas_DC-8_(piston_airliner)
Mechanical tool for applying force
(also called the gland) where the piston rod comes out of the cylinder. The piston has sliding rings and seals. The piston divides the inside of the cylinder
Hydraulic_cylinder
Type of free-piston machine
The free-piston linear generator (FPLG) uses chemical energy from fuel to drive magnets through a stator and converts this linear motion into electric
Free-piston_linear_generator
2004 NBA game ended by a brawl
(NBA) game between the Indiana Pacers and the defending champion Detroit Pistons on November 19, 2004, at the Palace in Auburn Hills, Michigan. The Associated
Malice_at_the_Palace
American basketball player (born 2001)
17, 2001) is an American professional basketball player for the Detroit Pistons of the National Basketball Association (NBA). He played college basketball
Daniss_Jenkins
Railway propulsion system using atmospheric pressure
where the vehicle carries a piston running in the tube. Some form of re-sealable slot is required to enable the piston to be attached to the vehicle
Atmospheric_railway
Joseph Piston (French pronunciation: [ʒozɛf pistɔ̃]; 1754–1831), baron of the Empire, was a French general who served during the French Revolutionary Wars
Joseph_Piston
79th NBA season
Dennis Schröder and Lindy Waters III move from Golden State to the Detroit Pistons, Toronto acquire P. J. Tucker from the Utah Jazz, and Utah gets Josh Richardson
2024–25_NBA_season
Combustion engine block tube in which a piston operates
A piston is seated inside each cylinder by several metal piston rings, which also provide seals for compression and the lubricating oil. The piston rings
Cylinder_(engine)
Internal combustion engine designs
divided into two groups based on the number of pistons that contribute to the six strokes. In the single-piston designs, the engine captures the heat lost
Six-stroke_engine
An angle seat piston valve is a pneumatically-controlled valve with a piston actuator providing linear actuation to lift a seal off its seat. The seat
Angle_seat_piston_valve
Type of gas operation for a firearm
cleaner and cooler gas piston systems. Firearms with a direct impingement design can, in principle, be constructed lighter than piston-operated designs. Because
Direct_impingement
Pioneering machine of the Industrial Revolution
power stroke, the weight of the object being moved by the engine pulled the piston to the top of the cylinder as steam was introduced. Then the cylinder was
Watt_steam_engine
Mazda makes both piston and Wankel "rotary" engines. This page summarizes the various engine families and variations. Although Mazda is well known for
List_of_Mazda_engines
Device that uses compressed air to fire projectiles
different power sources for modern air guns, depending on the design: spring-piston, pneumatic or bottled compressed gas (most commonly carbon dioxide and recently
Air_gun
The Rotary Piston Machine (German: Rotationskolbenmaschine (RKM)) is a proposed (still in development) form of machine. It can be used either to transform
RKM_engine
Disney and Pixar media franchise
Wilson), who gets lost on the way to California for a tiebreaker race in the Piston Cup, a famous race worldwide, and ends up in a little town called Radiator
Cars_(franchise)
A piston (also known as a dart, prod, or tentacle) is a complex contractile organelle found in some dinoflagellates, namely the Erythropsidinium and Greuetodinium
Piston (subcellular structure)
Piston_(subcellular_structure)
Symphony No. 3 by Walter Piston was composed in 1946–47. The Koussevitzky Music Foundation commissioned the Third Symphony and Piston began work on it in 1946
Symphony_No._3_(Piston)
Internal combustion engine
engine is an internal combustion engine that does not use reciprocating pistons in the way a reciprocating engine does, but it still relies on the same
Pistonless_rotary_engine
Series of I6 and V8 engines built by Chrysler
partial hemisphere, a flat-topped piston would yield a low compression ratio unless a very long stroke is used. The piston crown is domed to protrude into
Chrysler_Hemi_engine
American heavy metal band
Pist.On (also spelled Pist*On, Pist-On, Pist•On, PistOn, and Piston) is an American alternative metal band from Staten Island, New York. They released
Pist.On
American assault rifle
problems. The first is that many of the gas piston modifications for the M4 isolate the piston so that piston jams or related malfunction require the entire
M4_carbine
Type of internal combustion engine
internal combustion piston engine in which one or more valves in the fully open position extends into any area through which the piston may travel. By contrast
Interference_engine
NBA team season
The 2003–04 Detroit Pistons season was the 63rd season for the Pistons, the 56th in the National Basketball Association, and the 47th in the Detroit area
2003–04 Detroit Pistons season
2003–04_Detroit_Pistons_season
Engine that uses steam to perform mechanical work
fluid. The steam engine uses the force produced by steam pressure to push a piston back and forth inside a cylinder. This pushing force can be transformed
Steam_engine
Engine type that controls valves without using conventional cams
A camless or free-valve piston engine is an engine that has poppet valves operated by means of electromagnetic, hydraulic, or pneumatic actuators instead
Camless_piston_engine
Type of motorcycle
racer which used oval pistons. This was followed during the 1980s by a 750cc endurance racer version known as the NR750. The oval piston concept allowed for
Honda_NR
Mechanism for converting reciprocating motion to rotation
A crankshaft is a mechanical component used in a piston engine to convert the reciprocating motion into rotational motion. The crankshaft is a rotating
Crankshaft
Range of piston engine types
Rolls-Royce produced a range of piston engine types for aircraft use in the first half of the 20th century. Production of own-design engines ceased in
Rolls-Royce aircraft piston engines
Rolls-Royce_aircraft_piston_engines
NBA professional basketball team season
The 2024–25 Detroit Pistons season was the 84th season of the franchise, the 77th in the National Basketball Association (NBA), and the eighth in Midtown
2024–25 Detroit Pistons season
2024–25_Detroit_Pistons_season
four-stroke engine bottom end and piston, with a ported cylinder head closely resembling that of a two-stroke engine. The head piston is smaller and moves at half
Beare-head_engine
distributed weight to ensure that the piston remains level at all times. The piston made up of the following sub-elements: Piston deck The outer annular area is
Dry-seal_Wiggins_gasholder
Unit of power
to include the output power of other power-generating machinery such as piston engines, turbines, and electric motors. The definition of the unit varied
Horsepower
Type of power tool
pressurized air to flow into the piston. As the piston moves, a port opens allowing the air pressure to escape. The piston strikes against the rivet set
Rivet_gun
Principle in fluid mechanics
of the right piston. (The pistons are simply "plugs" that can slide freely but snugly inside the tube.) The pressure that the left piston exerts against
Pascal's_law
Symphony No. 2 by Walter Piston is a symphony composed in 1943. Piston's Second Symphony was commissioned by the Alice M. Ditson Fund of Columbia University
Symphony_No._2_(Piston)
Reciprocating internal combustion engine
is a family of straight-four, straight-five, and straight-six automobile piston engines that was produced by Volvo Cars in Skövde, Sweden from 1990 until
Volvo_Modular_Engine
Machine that converts one or more forms of energy into mechanical energy (of motion)
products in the combustion chamber, causing them to expand and drive a piston, which turns a crankshaft. Unlike internal combustion engines, a reaction
Engine
Hot air engine
It has a stepped piston. The front part acts as a displacer and the back part acts as a work piston (the displacer and the work piston move as a single
Manson_engine
Mechanical device with compressed gas
cylinder, something forces a piston to move in the desired direction. The piston is a disc or cylinder, and the piston rod transfers the force it develops
Pneumatic_cylinder
Device used in Hydraulics
a piston without moving seals. The seals are instead located in the wall through which the plunger slides (as opposed to piston rings on a piston). Plungers
Plunger_(hydraulics)
Device to increase pressure of hydrogen gas
apply reciprocating piston compressors. Widely used in refineries, they are the backbone of refining crude oil. Reciprocating piston compressors are commonly
Hydrogen_compressor
Mechanical component that converts rotational motion to reciprocal motion
convert rotational motion to reciprocating motion. Camshafts are used in piston engines (to operate the intake and exhaust valves), mechanically controlled
Camshaft
Internal combustion engine type
engine in which the piston completes four separate strokes while turning the crankshaft. A stroke refers to the full travel of the piston along the cylinder
Four-stroke_engine
Musical composition by Walter Piston
Walter Piston's Concerto for Clarinet and Orchestra was written in 1967. It was commissioned for the Hopkins Center Congregation of the Arts at Dartmouth
Clarinet_Concerto_(Piston)
Mechanism using friction to resist rotation of a circular plate
wheel hub. Calipers have evolved from simple single-piston units to two-, four- and even six-piston items. Compared to cars, motorcycles have a higher
Disc_brake
American physicist
David W. Piston is an American physicist. He is the Edward Mallinckrodt, Jr. Professor and Head of Cell Biology and Physiology at Washington University
David_W._Piston
Walter Piston's Serenata for Orchestra is an orchestral suite or miniature symphony written in 1956. Piston composed the Serenata in 1956, on commission
Serenata for Orchestra (Piston)
Serenata_for_Orchestra_(Piston)
Engine designed for use in powered aircraft
components are referred to as powered flight. Most aircraft engines are either piston engines or gas turbines, although a few have been rocket powered and in
Aircraft_engine
Reciprocating internal combustion engine
Volkswagen Group have produced a number of W12 internal combustion piston engines for their Volkswagen, Audi, and Bentley marques, since 2001. The only
Volkswagen_Group_W-12_engine
Categorization system of internal combustion engines
operating principles by which internal combustion engines are categorized. Piston engines are often categorized by their cylinder layout, valves and camshafts
Engine_configuration
Wind instrument with piston
or swannee whistle, lotus flute, piston flute, or jazz flute) is a wind instrument consisting of a tube with a piston in it, and a fipple mouthpiece similar
Slide_whistle
Classification of reciprocating engine cylinders
acts on the piston. A single-acting cylinder in a reciprocating engine is a cylinder in which the working fluid acts on one side of the piston only. A single-acting
Single- and double-acting cylinders
Single-_and_double-acting_cylinders
Assault rifle
SOAR-P (Piston) is the earlier piston variants of SOAR incorporated a short-stroke piston operating system with fully adjustable gas piston system. It's
Special Operations Assault Rifle
Special_Operations_Assault_Rifle
Highest speed obtained from an air vehicle
a number of weight categories. There are still further subdivisions for piston-engined, turbojet, turboprop, and rocket-engined aircraft. Within each of
List of flight airspeed records
List_of_flight_airspeed_records
PISTON
PISTON
PISTON
PISTON
Boy/Male
Indian
Brave, Champion, Hero
Boy/Male
Indian, Modern
Cheerful; Happy
Boy/Male
Shakespearean Italian
Twelfth Night', also called 'What You Will' Orsino, Duke of Illyria.
Girl/Female
Irish
Meaning “female champion†it is the feminine form of Niall.
Girl/Female
Muslim/Islamic
Beautiful Guardian of heaven
Boy/Male
German
Famous in battle.
Girl/Female
Tamil
Skill
Surname or Lastname
English
English : variant of Osborne.
Boy/Male
Biblical
Seed of God.
Boy/Male
Muslim/Islamic
Archangel of Allah (Gabriel)
PISTON
PISTON
PISTON
PISTON
PISTON
n.
A device, with valves, for raising water by steam, partly by atmospheric pressure, and partly by the direct action of the steam on the water, without the intervention of a piston; -- also called vacuum pump.
n.
A skeleton, or frame, having radiating arms or members, often connected by crosspieces; as, a casting forming the hub and spokes to which the rim of a fly wheel or large gear is bolted; the body of a piston head; a frame for strengthening a core or mold for a casting, etc.
n.
A kind of small hand-pump for throwing a stream of liquid, or for purposes of aspiration. It consists of a small cylindrical barrel and piston, or a bulb of soft elastic material, with or without valves, and with a nozzle which is sometimes at the end of a flexible tube; -- used for injecting animal bodies, cleansing wounds, etc.
n.
The extreme movement given to a sliding or vibrating reciprocating piece by a cam, crank, eccentric, or the like; travel; stroke; as, the throw of a slide valve. Also, frequently, the length of the radius of a crank, or the eccentricity of an eccentric; as, the throw of the crank of a steam engine is equal to half the stroke of the piston.
n.
A brass wind instrument, like the trumpet, furnished with valves moved by small pistons or sliding rods; a cornopean; a cornet.
v. t.
The movement, in either direction, of the piston plunger, piston rod, crosshead, etc., as of a steam engine or a pump, in which these parts have a reciprocating motion; as, the forward stroke of a piston; also, the entire distance passed through, as by a piston, in such a movement; as, the piston is at half stroke.
n.
A wind instrument of great antiquity, much used in war and military exercises, and of great value in the orchestra. In consists of a long metallic tube, curved (once or twice) into a convenient shape, and ending in a bell. Its scale in the lower octaves is limited to the first natural harmonics; but there are modern trumpets capable, by means of valves or pistons, of producing every tone within their compass, although at the expense of the true ringing quality of tone.
n.
A powerful brass instrument of the trumpet kind, thought by some to be the ancient sackbut, consisting of a tube in three parts, bent twice upon itself and ending in a bell. The middle part, bent double, slips into the outer parts, as in a telescope, so that by change of the vibrating length any tone within the compass of the instrument (which may be bass or tenor or alto or even, in rare instances, soprano) is commanded. It is the only member of the family of wind instruments whose scale, both diatonic and chromatic, is complete without the aid of keys or pistons, and which can slide from note to note as smoothly as the human voice or a violin. Softly blown, it has a rich and mellow sound, which becomes harsh and blatant when the tones are forced; used with discretion, its effect is often solemn and majestic.
n.
A yielding ring, as of metal, which surrounds a piston and maintains a tight fit, as inside a cylinder, etc.
n.
One of the series of disks or pistons in the chain pump.
n.
A large pipe forming the piston rod of a steam engine, of sufficient diameter to allow one end of the connecting rod to be attached to the crank, and the other end to pass within the pipe directly to the piston, thus making the engine more compact.
n.
A lining within the cylinder, in which the piston works and between which and the outer shell of the cylinder a space is left to form a steam jacket.
n.
A kind of cage inserted in a stuffing box and surrounding a piston rod, to separate the packing into two parts and form a chamber between for the reception of steam, etc. ; -- called also lantern brass.
n.
An hydraulic machine, variously constructed, for raising or transferring fluids, consisting essentially of a moving piece or piston working in a hollow cylinder or other cavity, with valves properly placed for admitting or retaining the fluid as it is drawn or driven through them by the action of the piston.
n.
The width of port opening which is uncovered by the valve, for the admission or release of steam, at the instant when the piston is at end of its stroke.
n.
A sliding piece which either is moved by, or moves against, fluid pressure. It usually consists of a short cylinder fitting within a cylindrical vessel along which it moves, back and forth. It is used in steam engines to receive motion from the steam, and in pumps to transmit motion to a fluid; also for other purposes.
n.
Motion; movement, regular or irregular; as, the play of a wheel or piston; hence, also, room for motion; free and easy action.
n.
The substance in a stuffing box, through which a piston rod slides.
n.
A long solid cylinder, used, instead of a piston or bucket, as a forcer in pumps.
pl.
of Cornet-a-piston