The Groundsman

November 2014

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Page 19 of 51

AWARD SPONSOR PROFILE 20 the Groundsman November 2014 Visit for more information and digital editions mportant regulations relating to the use of 'off-road' diesel engines, effective from 1 January 2014, appear to some to have slipped somewhat under the radar, but they have important repercussions for end users in the groundscare sector. From 2014 onwards, most machinery fitted with an engine over 50 hp has to meet much tighter emission controls – in Europe this is known as EU Stage IIIB, not to be confused with the similar Tier 4 regulations in the USA. These new regulations affect all manufacturers and have been introduced to reduce exhaust emissions still further. Brief history The first regulations for off-road diesel engines over 50 hp were introduced in 2001 (Stage I). Subsequently, more stringent rules were set (Stage II and Stage IIIA) with phase-in schedules from 2002 to 2008. The changes made to the engines back then, to comply with these regulations were all but invisible to the end user. The current Stage IIIB regulations were implemented between 2011 and 2013, and call for a 90 per cent reduction in particulate matter (PM), along with a 50 per cent drop in nitrogen oxides (NOx). The Stage IIIB regulations, are unquestionably the most significant and stringent to date. Although this latest initiative was implemented between 2011 and 2013, we and other major equipment manufacturers have had dispensation via a flex scheme to continue selling Stage IIIA engines for a period of time. This was I The impact of EU emission regulations Richard Comely, Ransomes Jacobsen's director of global product management, looks at latest EU engine emission regulations and how they will impact the groundscare industry in the UK By: Richard Comely based on the number of machines we previously manufactured in this category, but now the flex period is, more or less, at an end and all our new models will comply with Stage IIIB. How has Ransomes complied? To achieve these restricted emissions, modern diesel engines incorporate exhaust gas recirculation (EGR) systems (to reduce NOx gasses in the exhaust fumes), high pressure common rail diesel injection designs, a diesel oxidation catalyst (DOC) and a diesel particulate filter (DPF) - to further reduce NOx gasses and particulate matter, such as soot and harmful metals. To ensure that we can power the machines we produce in the 50 hp and above category, we have been working closely with our engine suppliers over several years. What we have now are engines that are completely different from those previously used. They are High Pressure Common Rail diesel engines that are capable of producing cleaner emissions, to a great extent governed by the electronic control of the fuel injection system they utilise. What we have now are engines that are completely different from those previously used " "

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