Points bounce is a feature of a points-triggered system. In the standard system with pointsdistributorignition coilignition Kettering system points bounce prevents the coil from saturating fully as RPM increases resulting in a weak spark, thus limiting high speed potential.
In a CD ignition, at least those early attempts, the points bounce created unwanted trigger pulses to the SCR thyristor that resulted in a series of weak, untimed sparks that caused extreme misfiring.
There were two possible solutions to the problem. The first would be to develop another means of triggering the discharge of the capacitor to one discharge per power stroke by replacing the points with something else. This could be done magnetically or optically, but that would necessitate more electronics and an expensive distributor. The other option was to keep the points, as they were already in use and reliable, and find a way to overcome the 'points bounce' problem.
Winterburn working in his basement in OttawaOntario. The design used an inexpensive method that would only recognize the first opening of the points and ignore subsequent openings when the points bounced. A company was formed in Ottawa in early called Hyland Electronics building CD ignitions using the Winterburn design.
The discharge capacitor within the CD ignition Firin Off (CD) the ability to Firin Off (CD) a powerful spark in excess of 4 times the spark power of the Kettering system using the same coil, with the exception that spark energy could be maintained at high rpm unlike the Kettering system. The Hyland unit consumed only four amperes at rpm 8cyl or 10,rpm 4cyl.
Spark plug lifespan was increased to at least 50, miles and points lifespan was greatly extended from 8, miles to at least 60, miles. Points lifespan became a factor of rubbing block cam follower wear and the life cycle of the spring with some Real World - Various - Warmin Up almostmiles.
The Hyland unit was tolerant of varied points gaps. The system could be switched back to standard inductive discharge ignition by the swapping of two wires. The patents were applied for by Winterburn on September 23, United States patent 3, The design was leaked to the United States in the summer of when Hyland exposed the design to a US company in an effort to expand sales.
Afterward, numerous companies started building their own throughout the s and s without licence. Some were direct copies of the Winterburn circuit. The circuit of this system was similar to the Winterburn patent in that it used a push-pull converted switch mode oscillator for energy transfer to a store - discharge capacitor and conventional contact breakers to initiate a thyristor triggering discharge of the charged CD capacitor.
It was stated to offer several advantages over conventional ignition. Marston's replies, further discussed aspects of the design and Firin Off (CD). In July Mr. Harris, undergraduate of the City University London made a detailed electrical engineering analysis of the Marston design as well as automotive engine measurement trials to verify fuel economy. These confirmed the benefits of the CD ignition system. However, he found that the core ingredient of the CD design rested on careful hand winding of the switch mode transformer and appropriate selection of oscillator transistors and choice of oscillator frequency.
For various reasons, probably mostly cost, Real World - Various - Warmin Up, the majority of currently available aftermarket ignition systems appear to be of the inductive discharge type, although in the s and s a variety of capacitive discharge units were readily available, some retaining the points while others provided an alternative type of timing sensor. Most ignition systems used in cars are inductive discharge ignition IDI systems, which are solely relying on the electric inductance at the coil to produce high- voltage electricity to the spark plugs as the magnetic field collapses when the current to the primary coil winding is disconnected disruptive discharge.
In a CDI system, a charging circuit charges a high voltage capacitorand at the instant of Real World - Various - Warmin Up the system stops charging the capacitor, allowing the capacitor to discharge its output to the ignition coil before reaching the spark plug.
A typical CDI module consists of a small transformera charging circuit, a triggering circuit and a main capacitor. First, the system voltage is raised up to to volts by a power supply inside the CDI module. Then, the electric current flows to the charging circuit and charges the capacitor. The rectifier inside the charging circuit prevents capacitor discharge before the moment of ignition.
When the triggering circuit receives the triggering signal, the triggering circuit stops the operation of the charging circuit, allowing the capacitor to discharge its output rapidly to the low inductance ignition coil. Dense, cerebral, and often difficult, the record peaked at number nine but failed to sell well in America. It fared slightly better in Canada, where it went gold. He then turned his attention to a host of different projects, although the release of Big Blue Ball -- a compilation of collaborative performances recorded at Real World Studios during the '90s -- helped placate fans while Gabriel focused his energies elsewhere.
He eventually returned to the studio for another album, 's Scratch My Backwhich featured orchestral covers of songs originally performed by RadioheadArcade FirePaul SimonDavid Bowieand others.
Gabriel uncharacteristically delivered the sequel to Scratch My Back quickly, releasing New Blood -- a collection of orchestral reinterpretations of his own songs -- in the fall of The following year, Gabriel held a lavish celebration of the 25th anniversary of Soreleasing several deluxe editions of the record -- the largest being a four-CD, two-DVD, two-vinyl box -- and launching the Back to Front tour, where he played So in its entirety.
Romantic Sad Sentimental. Sexy Trippy All Moods. Here's why," 17 June In the real world, that same scattershot purchasing model is one that Tencent has used to build, stealthily, a bridgehead in the global gaming industry. Djoudalbaye says. Send us feedback. See more words from the same year Dictionary Entries near scattershot scatter pin scatterplot scatter rug scattershot scattery scatty scatula.
Accessed 6 Aug. More from Merriam-Webster on scattershot Thesaurus: All synonyms and antonyms for scattershot Rhyming Dictionary: Words that rhyme with scattershot Comments on scattershot What made you want to look up scattershot? Please tell us where you read or heard it including the quote, if possible.
Test Your Knowledge - and learn some interesting things along the way. Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free! And who put it there, anyway? Literally How to use a word that literally drives some people nuts. Is Singular 'They' a Better Choice?
Cant Get In - Roger Chapman - Live In Hamburg (CD, Album), Remember Me, When History Was Made - Bliss - They Made History (CD, Album), Relax - Calvin Harris - Ready For The Weekend (CD, Album), Starchild (Radio Edit), A Place In Time - Lana Lane - Ballad Collection (CD), Free Bird, Turn Around - Harry Belafonte - 24x Harry Belafonte (Vinyl, LP)