Cummins: Ready for 2013 & EPA Tier 3 Standards

press release
Friday, January 04, 2013
The QSK50 EPA Tier 3 engine.

With a reputation built on reliability, Cummins Marine does extensive testing before releasing a new engine to the market.

 

The QSK50 EPA Tier 3 engines have been put through many hours of test bed operation at the Cummins factory. However Cummins believes that the real test of a marine engine is in marine operating conditions. With a need for frequent increase and decrease in power demand, push boats working the US inland water system are a particularly demanding application. One moment, while working around a down river bend, the engines may be idling while a few minutes later full power may be demanded to push a heavy tow on down the river. Backing power becomes important when working a tow off a fleeting area. Fluctuating power demands and frequent shifting put a new engine to the test.


It was with this demanding service-cycle in mind that the engineers at Cummins Marine choose the 105 by 32-foot towboat Eugenie, belonging to Houma-based Enterprise Marine Towing, for field-testing of the new Tier 3 compliant engines. Each 50-liter 16-cylinder engine produces 1800 HP at 1800 RPM. The installation saw the engines fitted to the existing Reinjest WAF-762 gears with 1:5.913 ratios. The new engines replaced a pair of Cummins 1600 HP QSK50 Tier 2 engines with only two minor alterations. To take advantage of the increased power, the propellers were changed, from 78-inch diameter with 68-inch pitch, to 80 by 60-inch props. In the engine room, since the new QSK50 T3 has the turbo chargers installed  in the top center of the engine instead of the rear of the engine as is on previous QSK50 T, the exhaust connection was moved 621 mm horizontally.
 

The US Environmental Protection Agency required that engines with 2.5 to 3.5 liters displacement per cylinder should achieve the stringent Tier 3 standards January 1, 2013. At 50 liters the 16-cylinder QSK50-M1 engine has 3.25 liters of displacement per cylinder. The EPA Tier 3 standard requires a 50% reduction in particulate matter (PM) and a 20% reduction in NOx compared to existing Tier 2 standards. The Tier 2 requirements apply to the popular Cummins QSK38 also.Cummins engineers achieved this standard with the established common rail fuel injection, newly designed single piece piston and high-efficiency turbo-charger and after-cooling among other refinements.
 

The engines were installed on August 26, 2012 and by mid-December had performed for approximately 1720 hours. As field-test engines they are closely monitored by Cummins engineers. Cummins Application Engineer John Echavarria says of the engines’ performance, “During this time no significant issues were reported. All coolant, fuel, lube, electric and mounting connections for the QSK50 Tier 3 are the same as they were for the Tier 2 engines.“
The field-testing of these engines is one more step in the continuing efforts by Cummins to maintain the high level of reliability that they have earned over the decades while meeting ever more stringent environmental standards.
 

Maritime Today


The Maritime Industry's original and most viewed E-News Service

Maritime Reporter June 2016 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

New Products

MSC Jade Sails with MAN's Biggest Engine

The largest and most powerful engine from MAN Diesel & Turbo’s portfolio ever designed and built has entered service.   Built by Doosan Engine in Korea and rated at 75,

Statoil’s 50 years to be Recorded

Statoil has decided to launch a large project to write the story about the company for its 50th anniversary in 2022. The University of Oslo has been chosen the

Orca Energy ESS to Power Fish Farm Support Vessel

Grovfjord Mek. Verksted AS (GMV) has selected Corvus Energy as the supplier of the lithium ion based energy storage system (ESS) for a fish farm support vessel called GMV ZERO.

Ship Repair & Conversion

Turkey to Modernize Pakistan’s Subs

The Turkish defense firm Defense Technologies and Engineering (STM) won the tender to modernize Pakistan's submarines against its French competitor DCNS, reports Daily Sabah.

Turkey Launches F-513 TCG Burgazada

Turkish Navy’s third Milgem class corvette, the F-513 TCG Burgazada, created as part of the MILGEM project, was launched with a ceremony attended by Turkish President

SeaPro FourStroke Making Gains in the Commercial Market

Mercury Marine’s family of SeaPro FourStroke outboard engines is suited for high-hour applications and harsh environments, according to the manufacturer, who said

Workboats

Alabama Pilots Order High-speed Launch from Gladding-Hearn

The Alabama Pilot, Inc., in Mobile, Ala., has ordered a Chesapeake Class pilot boat from Gladding-Hearn Shipbuilding, Duclos Corporation. Delivery of the new 53-footer is scheduled for mid-2017.

SeaPro FourStroke Making Gains in the Commercial Market

Mercury Marine’s family of SeaPro FourStroke outboard engines is suited for high-hour applications and harsh environments, according to the manufacturer, who said

Ulstein Delivers for BS Offshore

The first of two service operation vessels (SOV) ordered in 2015 by Bernhard Schulte Offshore (BS Offshore) and its client Siemens from Ulstein Verft in is now completed,

Environmental

MISC Publishes its 2015 Sustainability Report

MISC Berhad (MISC) today announces the publication of its 2015 Sustainability Report, covering the Company’s commitment, strategy and performance for the year ended

Admiral of the Ocean Sea Award Recipients Named

The United Seamen's Service (USS) 2016 Admiral of the Ocean Sea Awards (AOTOS) will be presented to Arthur E. Imperatore, Founder and President of New York Waterways; Donald Marcus,

Orca Energy ESS to Power Fish Farm Support Vessel

Grovfjord Mek. Verksted AS (GMV) has selected Corvus Energy as the supplier of the lithium ion based energy storage system (ESS) for a fish farm support vessel called GMV ZERO.

Fuels & Lubes

Conrad Shipyard Forms LNG Business Unit

Conrad Shipyard has formed a new business unit focused on LNG projects.   Conrad, builder of North America’s first LNG bunker barge scheduled for 2017 delivery,

Klüber Synthetic Gear Oils Offer Max Efficiency

Klüber Lubrication, manufacturer of specialty lubricants, provides high-performance gear oils that are based on high-grade raw materials and advanced additives,

Alfa Laval Announced Plans for SMM 2016

At SMM 2016, Alfa Laval will mark the 100th anniversary of its first marine separator, and present marine customers with more new solutions.   Over the course of a century,

Marine Power

MSC Jade Sails with MAN's Biggest Engine

The largest and most powerful engine from MAN Diesel & Turbo’s portfolio ever designed and built has entered service.   Built by Doosan Engine in Korea and rated at 75,

Terntank's first 15000DWT Chemical Tanker Passes Sea Trials

The first dual-fuel two-stroke engine employing the low-pressure X-DF gas admission technology developed by Winterthur Gas & Diesel (WinGD) has passed the final

Promoting National Maritime Transport Policy in Saint Lucia

A national workshop in Saint Lucia has brought together participants from various Government bodies and other stakeholders to discuss the development of a national maritime transport policy.

Government Update

Denmark Adopts Digital Ship Certification

As of June 24, 2016, ships flying the Danish flag are being digitally certified, making Denmark one of the first countries to put an end to the 100-year-old tradition

Prince Charles Places Final Section of UK Aircraft Carrier

The second of the largest warships ever built for the U.K. Royal Navy, the Queen Elizabeth Class carrier HMS Prince of Wales, was given the royal seal of approval when HRH The Prince of Wales,

More than 2,000 Migrants Rescued at Sea -Italy Coastguard

Ship crews pulled more than 2,000 migrants from overcrowded boats in the Mediterranean on Friday, Italy's coastguard said, as people smugglers stepped up operations

 
 
Maritime Contracts Maritime Security Maritime Standards Naval Architecture Pipelines Pod Propulsion Port Authority Salvage Ship Simulators Winch
rss | archive | history | articles | privacy | contributors | top maritime news | about us | copyright | maritime magazines
maritime security news | shipbuilding news | maritime industry | shipping news | maritime reporting | workboats news | ship design | maritime business

Time taken: 0.1341 sec (7 req/sec)