Abstract: An automobile fuel pretreatment device includes an instantaneous constant-temperature heating device including a fuel tube which allows fuel to flow, a heating unit positioned on and heating an outside surface of the fuel tube, and two spring clamp boards enclosing and clamping the heating unit on the fuel tube. Each of the spring clamp boards has a locking hole formed adjacent to a first free end and a locking tab formed adjacent to a second free end. The locking tab of each of the spring clamp boards is received through the locking hole of the other one of the spring clamp boards to engage the first free end of the other one of the spring clamp boards. A magnetization combustion-enhancing device includes two permanent magnets located adjacent to the fuel tube to induce magnetization on the fuel flowing through the fuel tube.

Abstract: A spark plug include an insulator, a central electrode, which is in the form of a bar received in the insulator, a metal case, which surrounds the insulator and is grounded, and a ground elbow fixed to the metal case. The central electrode includes a discharge terminal exposed outside the insulator and defining an extension line as an imaginary line extending from the discharge terminal along a central axis of the central electrode. The ground elbow has a connection end and an opposite, sharp-tip-like receiving end. The connection end is fixed to the metal case. The receiving end is set close to but spaced from the discharge terminal and is locate by one side of the extension line.

Abstract: A transmission cable assembly is connected between an ignition coil and a spark plug to transmit a high voltage generated by the ignition coil to the spark plug for ignition of a fuel-air mixture. The transmission cable assembly includes a transmission cable and a grounding unit. The transmission cable includes a high-voltage wire for transmission of high voltage and an insulation jacket wrapped around an outside surface of the high-voltage wire. The grounding unit is made of an electrically conductive substance and includes a grounding layer and multiple grounding wires. The grounding layer completely covers and tightly engages the insulation jacket. The grounding wires each have an end connected to an inside surface of the grounding layer.

Abstract: A transmission cable assembly is connected between an ignition coil and a spark plug to transmit a high voltage generated by the ignition coil to the spark plug for ignition of a fuel-air mixture. The transmission cable assembly includes a transmission cable and a grounding unit. The transmission cable includes a high-voltage wire for transmission of high voltage and an insulation jacket wrapped around an outside surface of the high-voltage wire. The grounding unit is made of an electrically conductive substance and includes a grounding layer and multiple grounding wires. The grounding layer completely covers and tightly engages the insulation jacket. The grounding wires each have an end connected to an inside surface of the grounding layer.

Abstract: A spark plug include an insulator, a central electrode, which is in the form of a bar received in the insulator, a metal case, which surrounds the insulator and is grounded, and a ground elbow fixed to the metal case. The central electrode includes a discharge terminal exposed outside the insulator and defining an extension line as an imaginary line extending from the discharge terminal along a central axis of the central electrode. The ground elbow has a connection end and an opposite, sharp-tip-like receiving end. The connection end is fixed to the metal case. The receiving end is set close to but spaced from the discharge terminal and is locate by one side of the extension line.

Abstract: A fuel tube includes a tube main body, a first tubular section, and a second tubular section. The tube main body defines a heating chamber. The first tubular section extends through one side of the tube main body and includes a first fuel inlet opening located outside the tube main body and a first fuel outlet opening located within the heating chamber. The second tubular section extends through another side of the tube main body that is opposite to the first tubular section and includes a second fuel inlet opening located within the heating chamber and a second fuel outlet opening located outside the tube main body. The tube main body, the first tubular section, and the second tubular section collectively form a single Z-shaped path. As such, the flow path of fuel is effectively shortened and stable flow rate of fuel can be maintained.

Abstract: An automobile fuel pretreatment device includes an instantaneous constant-temperature heating device including a fuel tube which allows fuel to flow, a heating unit positioned on and heating an outside surface of the fuel tube, and two spring clamp boards enclosing and clamping the heating unit on the fuel tube. Each of the spring clamp boards has a locking hole formed adjacent to a first free end and a locking tab formed adjacent to a second free end. The locking tab of each of the spring clamp boards is received through the locking hole of the other one of the spring clamp boards to engage the first free end of the other one of the spring clamp boards. A magnetization combustion-enhancing device includes two permanent magnets located adjacent to the fuel tube to induce magnetization on the fuel flowing through the fuel tube.