Development of the D1105-K Electronically-Controlled Small Industrial Diesel Engine
27th September, 2022
See a Press Release by Kubota Corporation
Building off the D902-K to broaden the Kubota lineup of electronically-controlled small engines using the TVCR unique combustion system
Kubota developed the D1105-K electronically-controlled small industrial diesel engine (displacement of 1.123 L) as a power source complying with the latest European, American, and Chinese emission regulations.
The engine adopts the unique Kubota TVCR combustion system to realize both greater fuel efficiency and a compact size that makes it easy to use as a replacement to conventional Kubota engines. Kubota will contribute to a carbon-neutral society by expanding an engine lineup that can reduce CO2 emissions.
- Feature
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- [1] Suppress black smoke
- [2] Low-fuel consumption
- [3] Acquisition of engine operating data, improvement in drivability and work efficiency
- [4] Enhanced compatibility
- [5] Improved serviceability
- [1] Suppress black smoke
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The D1105-K eliminates visible black smoke emissions often produced when starting, accelerating, or suddenly applying load to an engine. This new engine complies with the strictest China's national smoke regulations, Category III.
- [2] Low-fuel consumption
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The D1105-K is equipped with the TVCR combustion system, which combines our original combustion system with a unique electronic control technology developed specifically for small engines. These innovative technologies improve fuel consumption by roughly 5% compared to conventional models.
- [3] Acquisition of engine operating data, improvement in drivability and work efficiency
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The electronic control enables use of the CAN*1 communication protocol, which can control engine rotation and torque through signals sent from the vehicles. The CAN also enables the collection of the engine drive data necessary for telematics technology. This data improves drivability and operational efficiency by aggregating the torque characteristics that mechanical control cannot realize to reduce rotation speed under sudden load.
*1. Controller Area Network (CAN): A global serial communication bus standardized by the ISO that allows microcontrollers and devices to communicate with one another without a host computer.
- [4] Enhanced compatibility
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Manufacturers can easily replace conventional mechanical engines with the D1105-K because specifications, such as the exterior dimensions as well as the position of the intake and exhaust and power take-off, stay the same. It can also reduce the extra labor placed on the design of the main machine generally necessary to install an engine with an electronic control unit, such as designing the installation position and harnesses, because the ECU is mounted directly to the engine.
- [5] Improved serviceability
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Use of a large oil pan extends the period between essential regular oil changes up to 500 hours*2. Better serviceability reduces the time required for engine maintenance.
*2. Performance varies according to the operation conditions.
Engine model D1105-K Displacement 1.123L Cylinders 3 Rated output/rpm 18.5kW (24.8HP)/3000 rpm Combustion and fuel system TVCR Start of mass production After December 2023
D1105-K Website
https://global.engine.kubota.co.jp/en/technology/tvcr/d1105k.html
