Kubota Debuts New Engine and Micro-Hybrid
Kubota Engine America exhibited the S7509, a high power density, 300 hp, large displacement industrial diesel engine, at CONEXPO-CON/AGG. The new addition to Kubota’s 09 Series was announced by Kubota Corporation at the company’s headquarters in Japan on March 2, 2020.
The new large displacement industrial diesel engine, will comply with EU Stage V emission regulations.
The compact 7.5 l, 6-cylinder engine possesses low fuel consumption with its optimized, direct injection combustion system. It provides 100% power take-off at the flywheel and fan side, as well as selection of flywheel housing and flywheel for OEM coupling. The S7509 provides great versatility because the exhaust side auxiliary PTO takes up to 2 hydraulic pumps in addition to the intake side PTO. The engine also features a one-side easy maintenance and automatic belt tensioner. Mass production of the S7509 will begin in 2023.
Kubota Engine America also featured a prototype of its Micro-Hybrid System. It made its debut in North America at CONEXPO-CON/AGG. Kubota’s Micro-Hybrid System provides power assistance instantaneously during peak overloads to the engine providing an additional electrical power boost of up to 10 kW. The immediate torque available offers an efficiency boost at the most crucial time while recuperating and recharging its battery pack when not initiated.
Kubota first demonstrated its concept at Intermat, in France on April 2018. In 2019, at bauma, Kubota displayed the prototype system installed in a forklift. The Micro-Hybrid System started with the 1.8 l engine and now it has expanded to a larger 3.3 l engine. The peripheral key components, such as DC-DC converter and 48V lithium-ion battery have also been enhanced.
“Kubota’s Micro-Hybrid System allows for engine downsizing yet maintaining performance, productivity and efficiency,” said Mr. Matsushita. “The enhancement of the lineup will provide benefits to more OEM customers and equipment users.”
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