초록 ▼

In an autogenous generator (1) in which electrical energy is generated by a linkage between fixed windings (2) and permanent magnets which move integrally on the alternating motion of one or more pistons of a two-stroke internal combustion engine, the cylinders (5) coupled to the pistons (4) have a

In an autogenous generator (1) in which electrical energy is generated by a linkage between fixed windings (2) and permanent magnets which move integrally on the alternating motion of one or more pistons of a two-stroke internal combustion engine, the cylinders (5) coupled to the pistons (4) have a conical precombustion chamber (10) opening towards the cylinders (5), the engine runs with variable compression strokes, and the magnets (3) and windings (2) are designed such that the ratio between the quantities of mechanical energy used to generate electrical energy for two different strokes of the magnets (3) is equal to the ratio between the two compression ratios obtained in the cylinders (5) in relation to the two different strokes performed by the pistons (4) integral with the said magnets (3) multiplied by the ratio between the two overall efficiency values of the engine in relation to the said compression ratios.

대표청구항 ▼

[ I claim:] [1.] An autogenous electrical generator comprising:a two-stroke combustion engine adapted for variable stroke operation, having:a piston in a piston cylinder,a precombustion chamber having a base opening toward said piston cylinder, defining a volume containing air and providing a volume

[ I claim:] [1.] An autogenous electrical generator comprising:a two-stroke combustion engine adapted for variable stroke operation, having:a piston in a piston cylinder,a precombustion chamber having a base opening toward said piston cylinder, defining a volume containing air and providing a volume for combusting an air/fuel mixture to cause said piston to complete an expansion stroke within said cylinder;a mechanical energy return means positioned to receive kinetic energy from said piston during said expansion stroke and, on completion of said expansion stroke, enabling said piston to complete a compression stroke by imparting said received kinetic energy to said piston, wherein at the end of said compression stroke within said cylinder there remains a cylinder volume of air between said piston and said precombustion chamber;fixed windings with connections for attachment to a load; anda permanent magnet mounted to move integrally with said piston and to interact by flux linkage with said fixed windings to develop a voltage across said connections and provide energy to said load,said precombustion chamber further comprising metered fuel injection means so as to ensure that, under any operating condition, at least part of said volume of air mixes with an at least stoichiometric quantity of fuel forming a mixture for said combustion, wherein said combustion of said mixture produces the energy required for enabling said piston to complete said expansion stroke within said cylinder, and said mixture during combustion expands into said cylinder volume of air into which no fuel has been injected and said combustion is completed,wherein said magnet and said fixed windings are dimensioned such that under steady-state operations, for a given air/fuel ratio and with said part of said volume of air remaining constant, the relationship between a first quantity of energy required to generate electrical energy for said load at a first expansion and compression stroke and a second quantity of energy required to generate electrical energy for said load at a second expansion and compression stroke is substantially equal to a first compression ratio obtained within said precombustion chamber while generating electrical energy at said first stroke over a second compression ratio obtained within said precombustion chamber while generating electrical energy at said second stroke times the overall efficiency of said engine at said first compression ratio over the overall efficiency of said engine at said second compression ratio.