JPS6429226U - - Google Patents

Description

[Brief explanation of the drawing]

FIG. 1 is a schematic configuration diagram of a highly supercharged engine showing an embodiment of the present invention, FIG. 2 is a diagram for explaining the operating range of the mechanical supercharger and the switching range of the variable capacity mechanism 1c, and FIG. The figure shows the relationship between rotation speed and shaft torque to compare the output characteristics of the engine of the present invention and a conventional engine. Figure 4 shows the relationship between rotation speed and shaft torque to show the output characteristics of the conventional engine. It is a diagram. 1...Variable capacity type exhaust gas supercharger, 1a...
Compressor, 1b...turbine, 1c...variable capacity mechanism, 2...engine, 3...intercooler, 4
...Switching valve, 5...Bypass passage, 6...Mechanical supercharger.

Claims (1)

[Scope of utility model registration request] The capacity of the engine exhaust gas that is blown onto the turbine is varied in stages to an optimal capacity based on the operating condition of the engine, and the compressor installed on the same axis of the turbine is blown onto the turbine and rotates the turbine. a variable capacity type exhaust gas type supercharger that rotates and sends supercharging pressure to the engine; and a variable capacity type exhaust gas type supercharger for lowering intake air temperature disposed between the variable capacity type exhaust gas type supercharger and the intake manifold. In a highly supercharged engine having an intercooler, a mechanical supercharger that pressurizes intake air, and an intake pipe that supplies air pressurized by one or both of the superchargers to the intake manifold. A highly supercharged engine, characterized in that the mechanical supercharger is operated only when the engine speed is extremely low.