Pulstar Spark Plugs

Patented Capacitor

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About Capacitors

The capacitor is a component which has the ability or “capacity” to store energy in the form of an electrical charge... In its basic form, a Capacitor consists of two or more parallel conductive (metal) plates which are not connected or touching each other, but are electrically separated either by air or by some form of a good insulating material such as waxed paper, mica, ceramic, plastic or some form of a liquid gel as used in electrolytic capacitors. The insulating layer between a capacitors plates is commonly called the Dielectric. Due to this insulating layer, DC current can not flow through the capacitor as it blocks it allowing instead a voltage to be present across the plates in the form of an electrical charge. The conductive metal plates of a capacitor can be either square, circular or rectangular, or they can be of a cylindrical or spherical shape... When used in a direct current or DC circuit, a capacitor charges up to its supply voltage but blocks the flow of current through it because the dielectric of a capacitor is non-conductive and basically an insulator.

Definition courtesy of Electronics Tutorials: Capacitors

A typical capacitor has three parts: a positive plate, a negative plate, and a dielectric media. The positive plate attracts the energy while the negative plate provides it access to ground. The dielectric media allows the negative plate to attract energy but prevents it from crossing between the two plates, forcing the energy to collect and be “stored” on the positive plate. When the energy is released, a quick and powerful pulse of energy is created; delivering a large amount of instantaneous power over a short period of time.

CapacitorDielectric Media (Insulator):
Repurposed by using high-purity, engineered, ceramic. Prevents energy from traveling between the two plates yet allows the shell to act as negative plate.

Negative Plate (Shell):
Normal metal shell. Attracts energy to ground.

Positve Plate (Gas Seal):
Copper silica gas seal. Stores energy unable to access ground.

Parallel Capacitor

The capacitor is in parallel with the high voltage circuit, meaning the energy delivered by the ignition coil sees the capacitor and the spark gap simultaneously. While the voltage is ionizing the gap, energy is flowing into the capacitor (charging the capacitor). The resistance across the gap is infinite (open circuit) while the resistance in the capacitor is less than infinite. A resistance reversal takes place when ionization occurs and the spark is formed, the resistance in the gap becomes less than the resistance in the capacitor. The gap acts as a switch, automatically triggering the capacitor. At which point whatever energy is stored in the capacitor (3-10mJ) discharges into the combustion chamber creating the plasma-forming pulse.

Pulstar Patents

RE32,505 Reissue 9/15/1987 Combustion Initiation System
4,333,126 Utility 6/1/1982 Combustion Initiation Device
4,402,036 Utility 8/30/1983 Method of Producing High Energy Plasma for Igniting Fuel
4,589,398 Utility 5/20/1986 Combustion Initiation System Employing Hard Discharge Ignition
5,272,415 Utility 12/21/1993 Combustion Ignitor
5,371,436 Utility 12/6/1994 Combustion Ignitor
6,329,743 Utility 12/11/2001 Current Peaking Spark Plug
8,278,808 Utility 10/2/2012 Metallic Insulator for High Capacity Spark Plug (co-owned with Federal-Mogul)
8,049,399 Utility 11/1/2011 High Power Discharge Fuel Ignitor
8,672,721 Utility 3/18/2014 High Power Discharge Fuel Ignitor
8,922,102 Utility 12/30/2014 Composite Spark Plug
1,576,071 Japan 12/29/1985 Combustion Initiation System
1,875,134 Japan 12/8/1993 Combustion Initiation System Employing Hard Discharge
0,044,862 Euro 6/25/1985 Ignition Device for the Combustion of Fuel
0,174,346 Euro 1/8/1992 Combustion Initiation System Employing Hard Discharge Ignition
2,365,138 Canada 6/15/2010 Current Peaking Sparkplug
285,423 Mexico 4/4/2011 Composite Spark Plug
289,773 Mexico 8/29/2011 High Power Discharge fuel Ignitor
5,033,872 Japan 7/6/2012 Composite Spark Plug
300,543 Mexico 6/21/2012 High Power Discharge fuel Ignitor
ZL200780013176.9 China 6/27/2012 Metallic Insulator for High Capacity Spark Plug (co-owned with Federal-Mogul)
2007249192 Australia 3/17/2011 Composite Spark Plug
5383491 Japan 10/11/2013 High Power Discharge fuel Ignitor
ZL200780027642.9 China 12/4/2013 High Power Discharge fuel Ignitor
2007275029 Australia 12/5/2013 High Power Discharge fuel Ignitor
10-1446725 Korea 9/25/2014 Composite Spark Plug
10-1401059 Korea 5/22/2014 High Power Discharge fuel Ignitor