A temperature-controllable engine fuel supply device is used to feed fuel into a fuel inlet (40) of an engine (40). The temperature-controllable engine fuel supply device includes a fuel tank (1) for receiving the fuel, a cooling unit (2) and a nozzle (3). The cooling unit (2) communicates with the fuel tank (1) to cool the fuel. The nozzle (3) is disposed corresponding to the fuel inlet (40) to jet the fuel toward the fuel inlet (40). A cooling path (P) through which the fuel passes is from the cooling unit (2), through the nozzle (3), to the fuel inlet (40). A temperature sensor (21), (23) is installed on the cooling path (P) to detect temperature of the fuel, so temperature of the fuel is controlled to be within an ideal range before the fuel enters the engine (4).

A temperature-controllable engine fuel supply device is used to feed fuel into a fuel inlet (40) of an engine (40). The temperature-controllable engine fuel supply device includes a fuel tank (1) for receiving the fuel, a cooling unit (2) and a nozzle (3). The cooling unit (2) communicates with the fuel tank (1) to cool the fuel. The nozzle (3) is disposed corresponding to the fuel inlet (40) to jet the fuel toward the fuel inlet (40). A cooling path (P) through which the fuel passes is from the cooling unit (2), through the nozzle (3), to the fuel inlet (40). A temperature sensor (21), (23) is installed on the cooling path (P) to detect temperature of the fuel, so temperature of the fuel is controlled to be within an ideal range before the fuel enters the engine (4).

Fuel vaporizers and methods of use are disclosed herein. The fuel vaporizer comprises a housing, a fuel absorber, and an ultrasonic transducer. The housing defines a fuel absorption chamber, an equalization chamber, a fuel inlet port, and a fuel outlet port. The fuel inlet port is in fluid communication with the fuel absorption chamber. The fuel outlet port is in fluid communication with the equalization chamber. The fuel absorber is positioned within the fuel absorption chamber. The ultrasonic transducer is in contact with the fuel absorber and is positioned between the fuel absorption chamber and the equalization chamber.

Fuel vaporizers and methods of use are disclosed herein. The fuel vaporizer comprises a housing, a fuel absorber, and an ultrasonic transducer. The housing defines a fuel absorption chamber, an equalization chamber, a fuel inlet port, and a fuel outlet port. The fuel inlet port is in fluid communication with the fuel absorption chamber. The fuel outlet port is in fluid communication with the equalization chamber. The fuel absorber is positioned within the fuel absorption chamber. The ultrasonic transducer is in contact with the fuel absorber and is positioned between the fuel absorption chamber and the equalization chamber.

A vehicle engine includes a cylinder block, a cylinder head installed at an upper portion of the cylinder block and forming a combustion chamber therein, a piston installed at the cylinder block and reciprocating in the cylinder block so that the volume of the combustion chamber is compressed or expanded, an injector installed at the cylinder head for injecting fuel into the combustion chamber, a spark plug installed at the cylinder head for igniting the fuel injected from the injector, and a voltage generating member installed inside the piston so that a voltage is generated by a pressure generated during a compression stroke of the piston.

An apparatus to auto-adding an energy-saving activator has a container and a control unit. The container has a heater electrically connected to a control circuit of the control unit. The control unit has a vibration sensor and a sound sensor. When both the vibration and sound sensors transmit signals, the control circuit will actuate the heater to heat the energy-saving activator in the container so that the heated energy-saving activator turns into vapor and leaks out of the container toward the internal combustion engine to decrease the carbon deposits. Using both the vibration and sound sensors is in order to actuate the heater correctly without erroneous judgment. The heated vapor drafts into the internal combustion engine at once to mix with the fuel so that the fuel is burned oxyfuelly and completely to efficiently decrease the carbon deposits. Therefore, the efficiency of the internal combustion engine is also enhanced.

An apparatus to auto-adding an energy-saving activator has a container and a control unit. The container has a heater electrically connected to a control circuit of the control unit. The control unit has a vibration sensor and a sound sensor. When both the vibration and sound sensors transmit signals, the control circuit will actuate the heater to heat the energy-saving activator in the container so that the heated energy-saving activator turns into vapor and leaks out of the container toward the internal combustion engine to decrease the carbon deposits. Using both the vibration and sound sensors is in order to actuate the heater correctly without erroneous judgment. The heated vapor drafts into the internal combustion engine at once to mix with the fuel so that the fuel is burned oxyfuelly and completely to efficiently decrease the carbon deposits. Therefore, the efficiency of the internal combustion engine is also enhanced.

Fuel vaporizers and methods of use are disclosed herein. The fuel vaporizer comprises a housing, a fuel absorber, and an ultrasonic transducer. The housing defines a fuel absorption chamber, an equalization chamber, a fuel inlet port, and a fuel outlet port. The fuel inlet port is in fluid communication with the fuel absorption chamber. The fuel outlet port is in fluid communication with the equalization chamber. The fuel absorber is positioned within the fuel absorption chamber. The ultrasonic transducer is in contact with the fuel absorber and is positioned between the fuel absorption chamber and the equalization chamber.

Fuel vaporizers and methods of use are disclosed herein. The fuel vaporizer comprises a housing, a fuel absorber, and an ultrasonic transducer. The housing defines a fuel absorption chamber, an equalization chamber, a fuel inlet port, and a fuel outlet port. The fuel inlet port is in fluid communication with the fuel absorption chamber. The fuel outlet port is in fluid communication with the equalization chamber. The fuel absorber is positioned within the fuel absorption chamber. The ultrasonic transducer is in contact with the fuel absorber and is positioned between the fuel absorption chamber and the equalization chamber.

A method for improving fuel efficiency by applying a specific resonance frequency to a liquid fuel instead of using chemical additives. The method comprises the following steps: a) introducing a liquid fuel in a fuel tank; b) connecting a frequency generator to the fuel tank by a conductor configured to provide a frequency to the fuel tank; and c) applying a resonance frequency to the liquid fuel during at least one hour, wherein the resonance frequency is between 1.500 to 1.900 Hz.