Genset / Roundup

Sentron oil approved for Jenbacher engines

After accumulating more than 10 000 hours of service in each of two field trials, Petro-Canada Lubricants today announced that its Sentron LD 5000 premium natural gas engine oil has been approved by GE Jenbacher for use in all of their Type 6 engines fuelled by natural gas.

The field trials were conducted in GE Jenbacher J620 and J420 engines up to 20 bar used in CHP (Combined Heat and Power) applications, including a chemical plant in Germany and a textile plant in Spain.

“Our continued cooperation with GE Jenbacher over the past several years, involving several robust field trials, has subsequently led to the approval of Sentron LD 5000,” says Nick Moat, Research Associate, Petro-Canada Lubricants. “They are one of the industry’s leading OEMs and manufacture some of the finest engines in the world. We are thrilled to add this prestigious approval to our OEM list, and look forward to offering Sentron LD 5000 to our customers with GE Jenbacher Type 6 engines.”

During field trials, Sentron LD 5000 displayed several performance characteristics and benefits, including extended drain capability without detriment to engine cleanliness, particularly regarding ring zone deposits, due to its very robust detergency capabilities. “Especially exciting is that trials, and actual experience, have demonstrated oil drain intervals extending beyond 10 000 hours.

“This capability is very important when attempting to increase the equipment’s maintenance interval without impacting durability and performance,” says Allan Murray, Category Portfolio Manager, Commercial Industrial Engines, Petro-Canada Lubricants. “In fact,” added Moat, “over 16 000 hours have been reported based on field experience when engine preparation and set up are optimized.”

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Cummins’ launches next-gen Tier 4 engine

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With the US Environmental Protection Agency’s (EPA) Tier 4 Interim and European Stage IIIA off-highway emissions regulations approaching in January 2011, Cummins is at the forefront of efforts to meet stringent new standards for off-highway emissions with its G Drive series of engines.

Since the introduction of non-road Tier 1 regulations in 1996, the EPA has incrementally lowered the limits on emissions from diesel-powered, nonroad equipment. Tier 4 regulations require diesel engine exhaust emissions that are significantly lower than previous tiers. For example, Tier 4 electric power products will produce approximately 93 per cent less oxides of nitrogen (NOx) and 94 per cent less particulate matter (PM) than Tier 1 products.

Tier 4 regulations apply to both stationary and nonroad mobile applications and are split into two parts, termed Tier 4 Interim and Tier 4 Final. The Interim phase begins in 2011-2012, with even more stringent limits to come into effect in the Tier 4 Final phase in the 2013-2015 time period.

Cummins Tier 4 Interim and European Stage IIIA off-highway emissions regulations solution is driven by the need to deliver a cost-effective solution with improved fuel efficiency across the range for Original Equipment Manufacturers (OEMs) and, ultimately, operators. Generator sets, comprising an engine and alternator working together to produce electricity, require a reengineering process to satisfy new standards, which involves the removal of the existing engine from the generator set and replacement with a compliant engine.

Cummins achieved Tier 4 Interim emissions levels by developing the engine combustion technology to work with the after-treatment filter in reducing PM emissions levels by 90 per cent. The use of cooled exhaust gas recirculation (EGR) enables the required 45 per cent reduction in NOx.

Engine enhancements also include the use of Cummins Variable Geometry Turbochargers, advanced electronic controls and high pressure common rail fuel systems. Common Tier 4 subsystem architecture will extend across the compliant portfolio. Cummins was able to build on the proven durability of the company’s Tier 3 engines and combine it with successful technologies to deliver the most dependable power solution.

Cummins G Drive engines have been the driving force behind the world’s generator sets for 90 years, providing vital power solutions for rental and mobile applications in a variety of markets.

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