Provided is a general-purpose engine having a sufficient cooling function. A general-purpose engine 1 is provided with: an engine body 10 which has an exhaust system component 13 connected to a cylinder 11; and a cooling mechanism 9 which cools the engine body 10. The cooling mechanism 9 is provided with: a cooling fan 90 which rotates to generate a cooling air flow; a discharge section 92 which discharges the cooling air flow generated by the rotation of the cooling fan 90; and an air guide 93 which guides, toward the cylinder 11 and the exhaust system component 13, the cooling air flow discharged from the discharge section 92.

An engine assembly may include an internal combustion engine and an expander couplable to the internal combustion engine in a force transmitting manner. The engine assembly may also include a pulley mounted rotatably on a shaft of the expander. The pulley may be coupled to the internal combustion engine in a force-transmitting manner via a belt drive. The engine assembly may further include a first driver plate connected non-rotatably to the pulley and a second driver plate arranged adjacent thereto and connected non-rotatably to the shaft. The engine assembly may additionally include a clutch device including at least one actuating device and a coupling wheel. The coupling wheel may contact the first driver plate and the second driver plate when the clutch device is closed such that the pulley is connected with the shaft of the expander in a driving manner.

There is disclosed a method of operating an engine assembly, including: driving a load with an internal combustion engine and an output of a turbine section, the turbine section driven by combustion gases from an exhaust the internal combustion engine; and injecting fuel upstream of the turbine section and downstream of the exhaust of the internal combustion engine. An engine assembly having a secondary injector for injecting fuel upstream of the turbine section and downstream of the combustion engine is also disclosed.

There is disclosed a method of operating an engine assembly, including: driving a load with an internal combustion engine and an output of a turbine section, the turbine section driven by combustion gases from an exhaust the internal combustion engine; and injecting fuel upstream of the turbine section and downstream of the exhaust of the internal combustion engine. An engine assembly having a secondary injector for injecting fuel upstream of the turbine section and downstream of the combustion engine is also disclosed.

A solid fuel power source that provides at least one of thermal and electrical power such as direct electricity or thermal to electricity is further provided that powers a power system comprising (i) at least one reaction cell for the catalysis of atomic hydrogen to form hydrinos, (ii) a chemical fuel mixture comprising at least two components chosen from: a source of H2O catalyst or H2O catalyst; a source of atomic hydrogen or atomic hydrogen; reactants to form the source of H2O catalyst or H2O catalyst and a source of atomic hydrogen or atomic hydrogen; one or more reactants to initiate the catalysis of atomic hydrogen; and a material to cause the solid fuel to be highly conductive, (iii) at least one set of electrodes that confine the fuel and an electrical power source that provides a short burst of low-voltage, high-current electrical energy to initiate rapid kinetics of the hydrino reaction and an energy gain due to forming hydrinos, (iv) a product recovery systems such as a condenser (v) a reloading system, (vi) at least one of hydration, thermal, chemical, and electrochemical systems to regenerate the fuel from the reaction products, (vii) a heat sink that accepts the heat from the power-producing reactions, (viii) a power conversion system that may comprise a direct plasma to electric converter such as a plasmadynamic converter, magnetohydrodynamic converter, electromagnetic direct (crossed field or drift) converter, direct converter, and charge drift converter or a thermal to electric power converter such as a Rankine or Brayton-type power plant.

A solid fuel power source that provides at least one of thermal and electrical power such as direct electricity or thermal to electricity is further provided that powers a power system comprising (i) at least one reaction cell for the catalysis of atomic hydrogen to form hydrinos, (ii) a chemical fuel mixture comprising at least two components chosen from: a source of H2O catalyst or H2O catalyst; a source of atomic hydrogen or atomic hydrogen; reactants to form the source of H2O catalyst or H2O catalyst and a source of atomic hydrogen or atomic hydrogen; one or more reactants to initiate the catalysis of atomic hydrogen; and a material to cause the solid fuel to be highly conductive, (iii) at least one set of electrodes that confine the fuel and an electrical power source that provides a short burst of low-voltage, high-current electrical energy to initiate rapid kinetics of the hydrino reaction and an energy gain due to forming hydrinos, (iv) a product recovery systems such as a condenser (v) a reloading system, (vi) at least one of hydration, thermal, chemical, and electrochemical systems to regenerate the fuel from the reaction products, (vii) a heat sink that accepts the heat from the power-producing reactions, (viii) a power conversion system that may comprise a direct plasma to electric converter such as a plasmadynamic converter, magnetohydrodynamic converter, electromagnetic direct (crossed field or drift) converter, direct converter, and charge drift converter or a thermal to electric power converter such as a Rankine or Brayton-type power plant.

The present invention relates to a method and apparatus for operating an engine having a cylinder and a piston reciprocable therein on compressed gas. The apparatus comprises a source of compressed gas connected to a distributor which distributes the compressed gas to the cylinder. A valve is provided to selectively admit compressed gas to the cylinder when the piston is in an approximately top dead center position. Compressed gas is provided by a compressor comprising a axial compressor, a deflector blade which is located downstream of the axial compressor, a radial compressor which is located downstream of the deflector blade and a housing with a which encloses the axial compressor, deflector blade, and radial compressor.

The present invention relates to a method and apparatus for operating an engine having a cylinder and a piston reciprocable therein on compressed gas. The apparatus comprises a source of compressed gas connected to a distributor which distributes the compressed gas to the cylinder. A valve is provided to selectively admit compressed gas to the cylinder when the piston is in an approximately top dead center position. Compressed gas is provided by a compressor comprising a axial compressor, a deflector blade which is located downstream of the axial compressor, a radial compressor which is located downstream of the deflector blade and a housing with a which encloses the axial compressor, deflector blade, and radial compressor.

A method and apparatus are shown for burning crude oil or natural gas extracted from an underground reservoir, or for burning both crude oil and natural gas extracted from an underground reservoir, for providing thermal energy. The method and apparatus are also shown transferring the thermal energy to brine separated from the extracted oil, gas or both, for providing heated brine, or for converting the thermal energy to mechanical work, or for both transferring the thermal energy to the separated brine and converting the thermal energy to mechanical work. The method and apparatus are also shown heating the underground reservoir with the heated brine injected into the underground reservoir, or heating the underground reservoir with a resistive cable energized by electricity generated by converting the mechanical work to electric energy, or heating the underground reservoir with both the heated brine and the energized resistive cable.

A method and apparatus are shown for burning crude oil or natural gas extracted from an underground reservoir, or for burning both crude oil and natural gas extracted from an underground reservoir, for providing thermal energy. The method and apparatus are also shown transferring the thermal energy to brine separated from the extracted oil, gas or both, for providing heated brine, or for converting the thermal energy to mechanical work, or for both transferring the thermal energy to the separated brine and converting the thermal energy to mechanical work. The method and apparatus are also shown heating the underground reservoir with the heated brine injected into the underground reservoir, or heating the underground reservoir with a resistive cable energized by electricity generated by converting the mechanical work to electric energy, or heating the underground reservoir with both the heated brine and the energized resistive cable.