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Development of the Lightweight, Compact Sine Wave Inverter-Equipped EU16i Generator

Article of Honda R&D Technical Review Vol.13 No.2


The EU16i sine wave inverter-equipped generator was developed as the most lightweight and compact generator in the 1.6 kVA-rated output class. This generator has both superior portability and output capable of powering household appliances with their large power consumption. It also provides a low noise level, low fuel consumption, low exhaust emissions, and high-quality electrical performance with low waveform distortion and frequency variation. The efficient and lightweight high-speed multi-pole alternator and sine wave inverter system enables the engine to achieve higher speeds with a smaller displacement. With a frame that is fully covered with lightweight resin, this generator achieves a weight approximately one-half that of conventional generators. It also employs an electronic governor with automatic load-dependent speed control, together with an efficient generating system and a two-tiered noise dampening system. These allow this generator to achieve a reduction in noise level of 6 - 8 dB (A) over the practical load range and an improvement in fuel consumption of 20 - 40% compared to conventional generators. The EU16i generator meets the requirements of the EU Noise Directive, Stage II, as well as the CARB Tier II/EPA Phase II exhaust emission regulations. The EU16i is marketed worldwide though it is only marketed as the EU16i domestically. It is sold in North America as the EU2000i and as the EU20i when exported to other regions.


(1) Tanaka, Y., Kouchi, T., Ito, K., and Nakamura, M.: Development of the Lightweight and Compact Portable Generators-GENE21 Series, HONDA R&D Technical Review, Vol. 11 No. 2, p.15-22 (1999)
(2) Kouchi, T., Ito, K., and Nakamura, M.: Development of Lightweight and Compact 1kVA-class Portable Generator, SAE Paper 1999-01-3304
(3) Suzuki, T., Hojo, H., Inoue, S., Moriyama, H., Fujinaga, Y.: Development of General Purpose OHC Engine with Built-in Timing Belt, HONDA R&D Technical Review, Vol.10, p.122-127 (1998)

Author (organization or company)

Toshifumi KOUCHI(Asaka Higashi R&D Center)、Motohiro SHIMIZU(Asaka Higashi R&D Center)、Tadafumi HIROSE(Asaka Higashi R&D Center)、Yukio SUGIMOTO(Asaka Higashi R&D Center)

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