Energy-saving device for preventing double-bank ten-cylinder radial engine from idling and flaming out

Abstract

The invention relates to an energy-saving device for preventing idling flameout of a double-row ten-cylinder radial engine, which belongs to the technical field of power machinery. Including the output shaft of the double-row ten-cylinder radial engine, each row is provided with 5 cylinders arranged in a star shape around the output shaft, and the output shaft rotates 360° to form 5 cycles of torque pulsation. In the double-row ten-cylinder radial engine and the flywheel The combined permanent magnet device that enhances the negative torque ripple is arranged on the output shaft between them. The combined permanent magnet device includes a rotating permanent magnet assembly fixed on the output shaft of the engine and a fixed permanent magnet assembly fixed on the frame to cooperate with the rotating permanent magnet. The rotating permanent magnet assembly is composed of 10 permanent magnets of equal size and opposite polarity arranged alternately along the circumference. The rotating permanent magnet assembly is composed of 10 permanent magnets of equal size and opposite polarity arranged alternately along the circumference. Fixed permanent magnet assembly; between the rotating permanent magnet assembly and the fixed permanent magnet assembly, the permanent magnet torque pulsation is generated by the magnetic force line passing through the air gap.

Description

technical field [0001] The invention relates to an energy-saving device for preventing idling flameout of a double-row ten-cylinder radial engine, which belongs to the technical field of power machinery. Background technique [0002] In order to reduce the torsional vibration of the transmission system caused by the unbalanced rotation of the engine, a torsional damper is traditionally used in the clutch to achieve the purpose of vibration reduction. But on the one hand, the torsional damper cannot reduce the natural frequency of the entire power transmission system below the idle speed of the engine, so resonance still exists during the entire engine operation; on the other hand, due to the installation radius of the torsional damper spring To limit and transmit torque, it is difficult to reduce torsional vibration by reducing the spring stiffness in actual design. vibration effect. [0003] The separation and combination of the secondary mass of the dual-mass flywheel an...

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Problems solved by technology

However, on the one hand, the torsional damper cannot reduce the natural frequency of the entire power transmission system below the idle speed of the engine, so resonance still exists during the entire engine operation; on the other hand, due to the installation radius of the torsional damper spring To limit and transmit torque, it is difficult to reduce torsional vibration by reducing the spring stiffness in actual design. Therefore, it is difficult to obtain greater vibration reduction by reducing the vibration damping spring stiffness between the engine's practical speed range (1000-2000r / min). vibration effect

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