Doosan’s new DX140LCR-5 15tonne reduced tail swing crawler excavator is powered by the Perkins 1204F engine, which combines reduced fuel consumption with the power and torque of larger engines with a smaller displacement.
The new Perkins 1204F engine provides a 6% increase in power with an output of 85.9kW at 2,000 rpm and a 3% increase in torque. Swing torque has also been boosted by 28%.
Trouble-free operation is guaranteed by meeting Stage IV emission regulations without the need for a diesel parti
Yanmar’s two latest diesels, the 4TN101 and 4TN107, are said to combine high power density with low fuel consumption. According to Carlo Guidici, sales director for Yanmar Europe: “The engines have 10% lower fuel consumption than the average for the competition.” With power outputs ranging from 90-155kW, the 4.6litre 4TN107 can provide a power density of 33.7kW/litre, which the firm claims is the highest in its class, while it delivers 805Nm of torque.
The issue of power density is important and Guidici
New diesel developments from JCB and Volvo
Innovative diesel technologies are being developed by all the major engine manufacturers at present. New emission requirements have pushed the boundaries in terms of technology, with all the firms working on new systems to ensure their products meet requirements. And companies are also developing new engine sizes to broaden their range of offerings to the market.
Searching questions are being asked within the construction industry of the need for the Tier 4 Interim/Stage IIIB emissions legislation now coming into force. A senior figure within the European construction equipment sector with an executive role at a major manufacturer said, "Who are we doing this for?" He said that there is a need to reduce engine emissions so as to minimise pollution.
