The use of ultrasound or acoustics applied at a level below that which causes cavitation to control the energy balance between particles and the liquid phase in a metastable liquid.

A system and method for generating microwaves for microwave enhanced combustion (MEC) input to an MEC antenna of an internal combustion engine. The system uses a microwave generator and a directional coupler, which delivers the MEC input signal to the MEC antenna and receives a reflected signal from the MEC antenna. A feedback path determines a desired frequency for the MEC input signal, based on the reflected signal, and also determines a power feedback correction value. An open loop path determines desired power and timing for the MEC input signal, based on various engine conditions. The desired power is corrected with the power feedback correction value.

A system and method for generating microwaves for microwave enhanced combustion (MEC) input to an MEC antenna of an internal combustion engine. The system uses a directional coupler to deliver the MEC input signal to the MEC antenna and to receive a reflected power signal from the MEC antenna. A feedback path determines a desired frequency, based on the reflected power and using an impedance-matching controller that matches the reflected power to a desired frequency value. Additional inputs, such as various engine conditions, can also be used to determine the desired frequency.

A system and method for generating microwaves for microwave enhanced combustion (MEC) input to an MEC antenna of an internal combustion engine. The system uses a microwave generator and a directional coupler, which delivers the MEC input signal to the MEC antenna and receives a reflected signal from the MEC antenna. A feedback path determines a desired frequency for the MEC input signal, based on the reflected signal, and also determines a power feedback correction value. An open loop path determines desired power and timing for the MEC input signal, based on various engine conditions. The desired power is corrected with the power feedback correction value.

A system and method for generating microwaves for microwave enhanced combustion (MEC) input to an MEC antenna of an internal combustion engine. The system uses a directional coupler to deliver the MEC input signal to the MEC antenna and to receive a reflected power signal from the MEC antenna. A feedback path determines a desired frequency, based on the reflected power and using an impedance-matching controller that matches the reflected power to a desired frequency value. Additional inputs, such as various engine conditions, can also be used to determine the desired frequency.

A system and method for generating microwaves for microwave enhanced combustion (MEC) input to an MEC antenna of an internal combustion engine. The system uses a directional coupler to deliver the MEC input signal to the MEC antenna and to receive a reflected power signal from the MEC antenna. A first feedback path determines a desired frequency, based on the reflected power and using an impedance-matching controller that matches the reflected power to a desired frequency value. A second feedback path determines a power correction term. An open loop path determines a feedforward power term, as well as timing, for the MEC input signal, based on various engine conditions. The feedforward power term is corrected with the power correction term.

A system and method for generating microwaves for microwave enhanced combustion (MEC) input to an MEC antenna of an internal combustion engine. The system uses a directional coupler to deliver the MEC input signal to the MEC antenna and to receive a reflected power signal from the MEC antenna. A first feedback path determines a desired frequency, based on the reflected power and using an impedance-matching controller that matches the reflected power to a desired frequency value. A second feedback path determines a power correction term. An open loop path determines a feedforward power term, as well as timing, for the MEC input signal, based on various engine conditions. The feedforward power term is corrected with the power correction term.

A device is described, for optimizing the combustion of hydrocarbons, through induction of vibrations in the particles of fuel, comprising a tubular apparatus inserted in a fuel gas line, between a storage tank and an internal combustion engine; an ultrasound generator comprises a plurality of ultrasound piezoelectric transducers arranged on the tubular apparatus comprised of an internal tube coaxial with respect to an external tube, which supports the piezoelectric transducers, while the internal tube is composed of a series of tube sections made of ferromagnetic material arranged axially with interposed disks made of soft iron.

The use of ultrasound or acoustics applied at a level below that which causes cavitation to control the energy balance between particles and the liquid phase in a metastable liquid.

The use of ultrasound or acoustics applied at a level below that which causes cavitation to control the energy balance between particles and the liquid phase in a metastable liquid.