Kubota is pleased to announce the D1105-K,
a new electronically-controlled small diesel engine with Kubota's original TVCR combustion system.
D1105-K complies with the latest emission regulations (output less than 19 kW) around the world,
and has been developed for clean exhaust gas, with no visible black smoke.
Fuel consumption has been improved by about 5% compared with conventional models, leading to a reduction in fuel consumption and CO2 emissions.
As well as complying with US EPA Tier 4, EU Stage V, and China IV standards, D1105-K has been improved so that its emissions are clean, with no visible black smoke. It is also compliant with the most stringent of China's national smoke regulations, Category III.
By adopting our original combustion technology "TVCR," fuel efficiency improved by about 5% compared to conventional models, reducing CO2 emissions and responding to the growing need for low-carbon emissions.
D1105-K is compatible with HVO that conforms to European Norm EN 15940. Compared to conventional mechanical control, output loss is smaller. It maintains the high performance of the engine with HVO.
*HVO: Hydrotreated Vegetable Oil
The TVCR is Kubota's original combustion system.
The new combination of Kubota's original E-TVCS combustion system (new three-jet combustion system) and an electronically controlled fuel-injection system that differs from conventional electronically controlled governors enables injection control optimized to the operating conditions.
TVCR, the solution to various challenges
While maintaining its compact size and ease of installation, the system contributes to clean exhaust gas, low fuel consumption, and highly efficient operations, as well as ICT needs such as automation, unmanned operations, and hybridization.
The new combustion method TVCR
reduces black smoke to an invisible level
Through adoption of the new combustion method TVCR, the D1105-K has been improved to produce clean exhaust gas with no visible black smoke during engine start-up, acceleration, and sudden load.
*1：Opacimeter less than 0.8m-1
Fuel efficiency improved by about 5% compared to conventional model
Kubota's unique technology has overcome the obstacles to improving fuel efficiency in this class. In addition, the engine has high output and torque per displacement, combining both fuel efficiency and performance.
Facilitating easy model upgrades
D1105-K allows for an ECU to be directly attached to the engine crankcase, reducing development and design work at OEM.
Additionally, the same external dimensions, air intake and exhaust positions, engine mount position, and PTO (power take-off) as the conventional models make it easy to upgrade.
Supports highly efficient and stable operations
The electronic control allows greater flexibility in setting the performance curve, enabling a broader output flat range in the rated range than with the conventional model.
As a result, the rotation fluctuation can be suppressed in response to workload fluctuations, contributing to an improved working environment for the operator.
Facilitating highly integrated control of the engine and machine
Intercommunication between the engine's ECU and the vehicle's ECU enables integrated control of the mounted equipment. The D1105-K with electronic control is therefore the optimal engine for equipment that requires advanced control, such as automatic/unmanned driving and hybrid systems. It is well equipped to respond to the growing need for digitalization.
Kubota has developed an extensive and complete line-up of Kubota engines, available in a wide range of outputs to meet the needs of various markets. Our engines for the OEM market have outputs ranging from 4 kW to 157.3 kW, with a lineup available for each of our series.
*1: Gross intermittent SAE J1995
*2: Excluding cooling fan
*3: Dimensions and weight when ECU is mounted directly on engine
Specifications and appearance are subject to change without prior notice.
Dimensions and dry weight are according to Kubota's standard specification.
Actual dimensions and weight depend on completed specifications.