FACTOID # 21: 15% of Army recruits from South Dakota are Native American, which is roughly the same percentage for female Army recruits in the state.
 
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Encyclopedia > Distributor
Distributor cap. At the center is a spring loaded carbon button that bears upon the rotor. The number of distribution points (in this case 4) is determined by the number of cylinders in the engine
Distributor cap. At the center is a spring loaded carbon button that bears upon the rotor. The number of distribution points (in this case 4) is determined by the number of cylinders in the engine
Rotor. This rotates at the same speed as the camshaft, one half the speed of the crankshaft
Rotor. This rotates at the same speed as the camshaft, one half the speed of the crankshaft
Breaker arm with contact points at the left. The pivot is on the right and the cam follower is in the middle of the breaker arm.
Breaker arm with contact points at the left. The pivot is on the right and the cam follower is in the middle of the breaker arm.

A distributor is a device in the ignition system of an internal combustion engine that routes high voltage from the ignition coil to the spark plugs in the correct firing order. distributor cap for a 4 cylinder engine Scan, upload by MH 18:38, 2004 Aug 22 (UTC) This image has been released into the public domain by the copyright holder, its copyright has expired, or it is ineligible for copyright. ... distributor cap for a 4 cylinder engine Scan, upload by MH 18:38, 2004 Aug 22 (UTC) This image has been released into the public domain by the copyright holder, its copyright has expired, or it is ineligible for copyright. ... Image File history File links RotorBakelite. ... Image File history File links RotorBakelite. ... Crankshaft (red), pistons (gray) in their cylinders (blue), and flywheel (black) Continental engine marine crankshafts, 1942 Components of a typical, four stroke cycle, DOHC piston engine. ... breaker points, inside the distributor of an internal combustion engine scan, upload by MH 18:59, 2004 Aug 22 (UTC) This image has been released into the public domain by the copyright holder, its copyright has expired, or it is ineligible for copyright. ... breaker points, inside the distributor of an internal combustion engine scan, upload by MH 18:59, 2004 Aug 22 (UTC) This image has been released into the public domain by the copyright holder, its copyright has expired, or it is ineligible for copyright. ... The ignition system of an internal-combustion engine is an important part of the overall engine system that provides for the timely burning of the fuel mixture within the engine. ... This article does not cite any references or sources. ... In electrical engineering High voltage refers to a voltage which is high. ... An ignition coil (also called a spark coil) is an electrical device in a automobiles ignition system which transforms a storage batterys 12 volts to the thousands of volts needed to spark the spark plugs. ... This article or section should include material from Spark gap A spark plug is an electrical device that fits into the cylinder head of some internal combustion engines and ignites compressed aerosol gasoline by means of an electric spark. ... The firing order is the sequence of sparking of the spark plugs in a reciprocating engine, or the sequence of fuel injection in each cylinder in a Diesel engine. ...


It consists of a rotating arm or rotor inside the distributor cap, on top of the distributor shaft, but insulated from it and the body of the vehicle ("earth"). The metal part of the rotor contacts the central high voltage cable from the coil via a spring loaded carbon brush. The metal part of the rotor arm passes close to (but does not touch) the output contacts which connect via high tension cables to the spark plug of each cylinder. As the rotor spins within the distributor, electrical current is able to jump the small gaps created between the rotor arm and the contacts due to the high voltage created by the ignition coil. General Name, Symbol, Number carbon, C, 6 Chemical series nonmetals Group, Period, Block 14, 2, p Appearance black (graphite) colorless (diamond) Standard atomic weight 12. ... This article or section should include material from Spark gap A spark plug is an electrical device that fits into the cylinder head of some internal combustion engines and ignites compressed aerosol gasoline by means of an electric spark. ... Cylinder with piston in a steam engine A cylinder in the central working part of a reciprocating engine, the space in which a piston travels. ...


The distributor shaft has a cam that operates the contact breaker. Opening the points causes a high induction voltage in the system's ignition coil. monkey ... Breaker arm with contact points at the left. ... Electromagnetic induction is the production of an electrical potential difference (or voltage) across a conductor situated in a changing magnetic flux. ... An ignition coil (also called a spark coil) is an electrical device in a automobiles ignition system which transforms a storage batterys 12 volts to the thousands of volts needed to spark the spark plugs. ...


The distributor also houses the centrifugal advance unit: a set of hinged weights attached to the distributor shaft, that cause the breaker points mounting plate to slightly rotate and advance the spark timing with higher engine rpm. In addition, the distributor has a vacuum advance unit that advances the timing even further as a function of the vacuum in the inlet manifold. Usually there is also a capacitor attached to the distributor. The capacitor is connected parallel to the breaker points, to suppress sparking and prevent wear of the points. The expression centrifugal force is used to express that if an object is being swung around on a string the object seems to be pulling on the string. ... Revolutions per minute (abbreviated rpm, RPM, r/min, or min-1) is a unit of frequency, commonly used to measure rotational speed, in particular in the case of rotation around a fixed axis. ... Look up Vacuum in Wiktionary, the free dictionary. ... Left side of a Ford Cologne V6 engine, clearly showing a (rusty) cast iron exhaust manifold - three exhaust ports into one pipe. ... Capacitors: SMD ceramic at top left; SMD tantalum at bottom left; through-hole tantalum at top right; through-hole electrolytic at bottom right. ... This article or section does not adequately cite its references or sources. ... To meet Wikipedias quality standards, this article or section may require cleanup. ...


Around the 1970s the primary breaker points were largely replaced with Hall effect sensors. As this is a non-contacting device and the primary circuit is controlled by solid state electronics, a great amount of maintenance in point adjustment and replacement was eliminated. This also eliminates any problem with breaker follower or cam wear, and by eliminating a side load extends distributor shaft bearing life. The remaining secondary (high voltage) circuit was as described above, using a single coil and a rotary distributor. The 1970s decade refers to the years from 1970 to 1979. ... The magnetic piston (1) in this pneumatic cylinder will cause the Hall effect sensors (2 and 3) mounted on its outer wall to activate when it is fully retracted or extended. ... In electronics, solid state circuits are those that do not contain vacuum tubes. ... A bearing is a device to permit constrained relative motion between two parts, typically rotation or linear movement. ...


Distributor caps

A distributor cap is used in an automobile's engine to cover the distributor and its internal rotor. The rotor switches a high sparking voltage to the spark plugs so that these fire in correct sequence. Karl Benzs Velo model (1894) - entered into the first automobile race An automobile or motor car (usually shortened to just car) is a wheeled passenger vehicle that carries its own motor. ... This article does not cite any references or sources. ... This article or section should include material from Spark gap A spark plug is an electrical device that fits into the cylinder head of some internal combustion engines and ignites compressed aerosol gasoline by means of an electric spark. ... The firing order is the sequence of sparking of the spark plugs in a reciprocating engine, or the sequence of fuel injection in each cylinder in a Diesel engine. ...


The distributor cap is a prime example of a component that eventually succumbs to heat and vibration. A relatively easy and inexpensive part to replace, if its bakelite housing does not break or crack first, carbon deposit accumulation or erosion of its metal terminals may also cause distributor-cap failure. Bakelite is a material based on the thermosetting phenol formaldehyde resin, polyoxybenzylmethylenglycolanhydride developed in 1907–1909 by Dr. Leo Baekeland. ... General Name, Symbol, Number carbon, C, 6 Chemical series nonmetals Group, Period, Block 14, 2, p Appearance black (graphite) colorless (diamond) Standard atomic weight 12. ...


The distributor cap has one post for each cylinder and in points ignition systems there is a central post for the coil voltage coming into the distributor. In HEI (High Energy Ignition) systems where there is not a central post, the ignition coil sits on top of the distributor. On the inside of the cap there is a terminal that corresponds to each post and the plug terminals are arranged around the circumference of the cap according to the firing order in order to send the secondary voltage to the proper spark plug at the right time. International safety symbol Caution, risk of electric shock (ISO 3864), colloquially known as high voltage symbol. ... The firing order is the sequence of sparking of the spark plugs in a reciprocating engine, or the sequence of fuel injection in each cylinder in a Diesel engine. ...


The "rotor" head is attached to the top of the distributor shaft which is driven by a gear on the engine's camshaft and thus synchronized to it. This rotor is pressed against a carbon brush on the center terminal of the distributor cap which connects to the ignition coil either through the top and wired directly to the coil in HEI systems; or via the center terminal in points ignition systems and remotely connected to the coil. The rotor is constructed such that the center tab is electrically connected to its outer edge so the voltage coming in to the center post will travel through the carbon point to the outer edge of the rotor. As the camshaft rotates, the rotor spins and its outer edge passes each of the internal plug terminals to fire each spark plug. Computer animation of a camshaft The camshaft is an apparatus often used in piston engines to operate poppet valves. ... General Name, Symbol, Number carbon, C, 6 Chemical series nonmetals Group, Period, Block 14, 2, p Appearance black (graphite) colorless (diamond) Standard atomic weight 12. ... In electrical engineering, brushes conduct current between stationary wires and moving parts, most commonly in a rotating shaft. ...


Direct ignition

Modern engine designs are tending to do away with the distributor and coil, instead performing the distribution function in the primary circuit electronically and applying the primary (low-voltage) pulse to individual coils on top of each spark plug (Direct Ignition or coil-on-plug). This avoids the need to switch very high voltages, which is very often a source of trouble, especially in damp conditions.


  Results from FactBites:
 
Film distributor - Wikipedia, the free encyclopedia (442 words)
A film distributor is an independent company, a subsidiary company or occasionally an individual, which acts as the final agent between a film production company or some intermediary agent, and a film exhibitor, to the end of securing placement of the producer's film on the exhibitor's screen.
The distributor must also ensure that enough film prints are struck to service all contracted exhibitors on the contract-based opening day, ensure their physical delivery to the theater by the opening day, and ensure the prints' return to the distributor's office or other storage resource also on the contract-based return date.
If the distributor is handling an imported or foreign-language film, it may also be responsible for securing dubbing or subtitling for the film, and securing censorship or other legal or organizational "approval" for the exhibition of the film in the country/territory in which it does business, prior to approaching the exhibitors for booking.
Distributor - Wikipedia, the free encyclopedia (901 words)
The distributor also houses the centrifugal advance unit: a set of hinged weights attached to the distributor shaft, that cause the breaker points mounting plate to slightly rotate and advance the spark timing with higher engine rpm.
The "rotor" head is attached to the top of the distributor shaft which is driven by a gear on the engine's camshaft and thus synchronized to it.
This rotor is pressed against a carbon brush on the center terminal of the distributor cap which connects to the ignition coil either through the top and wired directly to the coil in HEI systems; or via the center terminal in points ignition systems and remotely connected to the coil.
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