Received the Japan Society of Mechanical Engineers Award (Technology)

In 2007, there were 29 applications for the Japan Society of Mechanical Engineers Award (Technology). After a rigorous selection process consisting of document review (first stage), presentation review (second stage), and on-site inspection (third stage), eight projects, including this one, received the award.
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The Japan Society of Mechanical Engineers (JSME) Award is one of Japan's most prestigious and historically significant awards, established in 1958 as part of the 60th anniversary commemoration of the JSME's founding (1957). Among the JSME Awards (Technical Achievement, Papers, Technology), the JSME Award (Technology) targets the development of new technologies, new products, and systems completed within the last few years.

1. Originality, novelty

2. Relative superiority in quality or performance

3. Contributing to the economy and society through increased productivity

4. The relationship between mechanical engineering and industry.

5. Ripple effect or results

This award uses the following criteria for evaluation. (The Japan Society of Mechanical Engineers Award (Paper) is for researchers at universities and research institutes.)

Our company previously received the Japan Society of Mechanical Engineers Award in 1965 for our product, "Digital Torque Meter (Yoshichiro Ono, Takeshi Katsura)."

[Background of the award]

To reduce NOx (nitrogen oxides) and PM (particulate matter) in diesel engine exhaust gases and achieve cleaner emissions, improvements to diesel engines are being made, including high-pressure fuel injection, common rail systems, and multi-stage injection. To clean diesel engine exhaust gases, it is first necessary to accurately measure the injection volume and injection rate of the injection pump. However, conventional measurement methods, even globally, consist only of outdated equipment with low responsiveness and insufficient measurement accuracy, and furthermore, they have the drawback of not being able to measure the multi-stage injection rate using piezo common rails. In contrast, this technology is a new technique that combines a constant-volume method with a high-speed oil discharge mechanism and a new data processing method, enabling the measurement of multi-stage injection rate and injection volume. The injection volume measurement device, which commercializes this technology, has been introduced to major injection device and diesel engine manufacturers both domestically and internationally, serving as a mother machine for development and product inspection, and is internationally recognized as the new de facto standard for injection rate and injection volume measurement devices. This technology has contributed to improving the quality of multi-stage injection** of piezo common rails* and has contributed to the improvement of diesel engines, leading to this award.

Piezo Common Rail*: High-pressure fuel is stored in an accumulator chamber and supplied uniformly to each injector. A piezoelectric element is used to increase the opening and closing speed of the injectors, enabling multi-stage injection.
Multi-stage injection**: A technology that reduces PM NOx noise by injecting fuel in several stages within a single combustion cycle.
Japan Society of Mechanical Engineers: The Japan Society of Mechanical Engineers
Japan Society of Mechanical Engineers Award: http://www.jsme.or.jp/shou1.htm