EPHIL is the leading supplier of gasoline engines and power systems for model aircraft and drones. Our company was established in 2020. Our main products include aircraft gasoline engines, glow gasoline engines and engine parts. Some models are equipped with larger air, fuel and oil filters, hardened crankshaft journals and self-draining choke carburetors . These engines are widely used in model aircraft, drones and other equipment, with powers ranging from 100 horsepower to 375 horsepower, and are exported to more than 25 countries and regions.

Our team consists of several engine engineers, electrical engineers, and product designers. We are good at engine design, production and debugging, and work closely with well-known companies such as Kenncth, Vossen, Westin, ACDelco, Coverking, etc.

We have our own R&D center and complete production workshop, equipped with professional cylinder processing, quality measurement, CNC, precision lathes and other equipment, which can fully cover the needs of large-volume urgent orders.

CDI Electronic Ignition Unit For Twin-Cylinder Gas Engine

Input Voltage: 6V - 14V. Output Voltage: 2kV. Static Electric Current: 30mA. Work Electric Current:

EPHIL 40A ESC Brushless Motor Speed Controller For Engine Starter

The ESC Speed Controller controls the brushless motor movement or speed by activating the appropriate to create the rotating magnetic field so that the motor rotates. The higher the frequency or the quicker the ESC goes through the 6 intervals, the higher the speed of the motor will be.

EPHIL AET Ignition System For Twin-Cylinder Glow Plug Engine

Ignition systems can be classified as either magneto-ignition systems or electronic Full Authority Digital Engine Control (FADEC) systems.An automatic ignition triggers an electrical spark to ignite the gas in the burner.

EPHIL AET Ignition System For Single-Cylinder Glow Plug Engine

CDI Electronic Ignition Unit For Single-Cylinder Gas Engine

E9 Glow Plug For Gasoline Engine

E9 Glow Plugs are small heaters in a car's bonnet that warm air and diesel in an engine to help with combustion. They work similarly to spark plugs, but instead of sparking the ignition in petrol engines, they heat air and fuel to start diesel engines.

E8 Glow Plug For Gasoline Engine

An E8 Glow Plug, also known as a heater plug, is a heating element in a diesel engine that warms up the combustion chamber. Glow plugs are short metal pencils with filaments made of platinum or iridium, which resist oxidation and high temperatures.

CM-6 Iridium Spark Plug

The CM6 / CM-6 plug is the spark plug used for the petrol air cooled engines, frequently used in large Radio Controlled aircraft with electronic ignition. e.g. DL 50 (50cc), DLE 55 (55cc), DL 100 (100cc), DLE 111 (111cc) also GP, 3W, RCGF engines.

A Capacitor Discharge Ignition or CDI is an electronic ignition device that stores an electrical charge and then discharges it through an ignition coil in order to produce a powerful spark from the spark plugs in a petrol engine. Here the ignition is provided by the capacitor charge. It is widely used in outboard motors, motorcycles, lawn mowers, chainsaws, small engines, turbine-powered aircraft, and some cars. Capacitor Discharge Ignition system is charging constantly and sends a large voltage charge (380–450 V) to the coil, producing a spark, at a higher voltage with a shorter duration compared to Inductive ignition systems.

Our ignition units are suitable for use with any 2 coil ignition unit as well as compatible with onboard CPU controlled ignition, vehicle load and all types of control systems to increase spark, improve combustion and overall electrical performance.

Our CDI ignition units have built-in launch limiters and programmable timing delays to receive the magnetic induction signal from the propeller hub faster and precisely control ignition timing.

AC-CDI Module

These DC current supplies throughout a wire toward an ignition coil placed at the external of the engine. Sometimes, the points were below the flywheel for engines with two-stroke & usually on the camshaft for 4-stroke engines.

DC-CDI Module

This kind of module works with the battery & thus an extra DC/AC inverter circuit is used within the capacitor discharge ignition module to increase the voltage from 2V DC – 400/600 V DC to make the CDI module somewhat larger. But, vehicles that utilize DC-CDI type systems will have more accurate ignition timing, as well as the engine, can be activated more simply once it gets cold.

The flywheel is a large horseshoe permanent magnet rolled into a circle that turns-ON the crankshaft. The Stator is the plate holding all of the electrical coils of wire, which is used to power ON the ignition coil, bike's lights, and battery charging circuits.

The charging coil is one coil in the stator, which is used to produce 6 volts to charge the capacitor C1. Based on the flywheel's movement the single pulsed power is produced and is supplied to the sparking plug by the charging coil to ensure the maximum spark.

The timing mark is an arbitrary alignment point shared by the engine case and stator plate. It indicates the point at which the top of the piston's travel is equivalent to the trigger point on the flywheel and stator. By rotating the stator plate left and right, you effectively change the trigger point of the CDI, thus advancing or retarding your timing, respectively. As the flywheel turns fast, the charging coil produces an AC current from +6V to -6V.

The trigger circuit is a switch, probably using a Transistor, Thyristor, or SCR. This triggered by a pulse from the Hall Sensor on the stator. They only allow current from one side of the circuit until they are triggered. Once Capacitor C1 is fully charged, the circuit can be triggered again. This is why there is timing involved with the motor.

The major advantage of CDI is that the capacitor can be fully charged in a very short time (typically 1ms). So the CDI is suited to an application where insufficient dwell time is available.
The capacitor discharge ignition system has a short transient response, a fast voltage rise (between 3 to 10 kV/ µs) compared to inductive systems (300 to 500 V/ µs), and a shorter spark duration (about 50-80 µs).

Traditional automotive ignition systems can be either inductive discharge or capacitive discharge. Traditionally, old-school stock engines had inductive discharge systems that rely on the coil to do most of the work. The coil takes in battery voltage (typically, 12 to 14 volts) and steps it up to thousands of volts to create a hot enough spark to jump the spark-plug gap. At higher rpm, there may be insufficient time for the coil to recover and step up the battery voltage between firings.

Capacitive discharge (CD) systems step up 12-volt battery voltage to 500 volts or more, storing that power in a capacitor that's always ready whenever the distributor sends a trigger signal. When boosted again through a matched performance coil, the resulting charge can output significantly higher voltages than most inductive systems.

Most CD ignitions can tolerate a wider variety of input voltage compared with an inductive system and still function satisfactorily. On the other hand, an inductive system that's still points triggered needs a ballast resistor to drop voltage to keep from burning out. Some short-duration racers don't run alternators; if a system can operate satisfactorily on less than 12 volts, it may be beneficial if running solely off battery power.

Determining whether electrical problems are due to a malfunctioning CDI box can prove complicated. If you don't already have a CDI box on hand that you know is in good working condition, it will be expensive to purchase another one. Troubleshooting is complicated and multi-faceted, involving multiple parts of the electrical system. There are some symptoms of CBI box malfunction, including:

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A: If You Actually HAVE a : "CDI" (Not an Electronic Igniter, which I Suspect): It can manifest a failure in hard starting, no starting, bad running/idle, poor acceleration, or sparks can fall off above 4,000 RPM. It can fail Just Like a Real, Live Igniter box.

A: Inductive ignition systems produce a spark, at a lower voltage with a longer duration compared to capacitor discharge ignition systems. A CDI, Capacitor Discharge Ignition system is charging constantly and sends a large voltage charge (380–450 V) to the coil.

A: Your CDI has two plugs, a 4-pin and a 2-pin. The 4-pin side may have 3 or 4 wires connected to it (both AC and DC versions). If the 2-pin connector has only 1 wire going to it, it's a DC CDI. If there are 2 wires attached to the 2-pin connector, then it's an AC CDI.

A: If you are Positive it's a CDI (after market on a Racer) and Not just An igniter(as 99% Are) , well, what usually causes solid state electronic failure? Over voltage; sometimes under voltage; overheating due to clogged heatsink fins or loose heatsink. Vibration, age. Water entering.

A: In CDI, the magneto-flywheel assembly along with pickup coil generates ignition timing signals which is one negative and one positive pulse separated by some angular distance used to decide the ignition time for spark.

A: A CDI box works via the voltage from your motorcycle battery, and the electrical load discharges in one operation, starting the ignition and combustion processes. The capacitor can ignite without a battery connection, and there's a built-in capacitor for kick-starting.

A: CDI engines consume relatively low amount of fuel, are eco-friendly, offer more power and higher torque. Such renowned manufacturers, as Bosch and Delphi, produce injection systems for such motors.

A: The DC-CDI works well in areas where there is extreme cold temperatures and is very precise during ignition. The AC-CDI on the other hand, is simpler and rarely runs into problems. It is smaller and convenient too.

Q: What are the 3 types of ignition systems?

A: There are three basic types of automotive ignition systems: distributor-based, distributor-less, and coil-on-plug (COP). Early ignition systems used fully mechanical distributors to deliver the spark at the right time.

A: Generally a bad CDI won't fire at all since everything goes through the box to fire the motor. Since you still have fire, I would rule that one out. -Check to make sure the ignition leads aren't shorting.

A: The typical voltage of a motorcycle pickup coil pulse that is sent to the Capacitor Discharge Ignition (CDI) system is usually in the range of 50 to 100 volts. This pulse is generated by the pickup coil as the engine rotates, and it is used by the CDI to trigger the ignition spark at the correct time.

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CDI Electronic Ignition Unit For Single-Cylinder Gas Engine