Johnson Matthey has also appoint- ed Bay-San Co. Inc. as a manufac- turer’s representative of Johnson Matthey catalyst systems for station- ary diesel and gas engines in the Midwest. Bay-San is an established manufacturer’s representative to the stationary power generation and compression markets. The compa- ny’s territory includes Wisconsin, Minnesota, Illinois, Indiana, Iowa, Ohio and Michigan. Bay-San will carry Johnson Matthey’s line of two- way and three-way catalytic convert- ers, CRT DPFs and SCR systems, giving it a complete toolbox of emis- sions control products.
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KAVLICO Kavlico, part of Custom Sensors & Technologies (CST), is offering a line of emissions sensors for measuring diesel engine exhaust backpressure (EBP). The sensors can withstand operating temperatures of 5° to 257°F, Kavlico said. To protect an engine from damage due to over- pressure situations in systems with or without a diesel particulate filter (DPF), Kavlico’s EBP sensors are designed to provide diagnostic infor- mation to the engine control unit for regeneration of the DPF. Kavlico’s proprietary ASIC architec- ture, calibration and compensation methods, along with the ceramic capac- itive sense element make these sen- sors applicable for operation in the exhaust environment where there is severe vibration and caustic soot and acids. The sensors feature stainless- steel housings and operate on a 5 Vdc power supply, providing a linear ampli- fied analog output of 0.5 to 4. 5 Vdc pro- portional to pressure. The available pressure ranges are zero to 5.80 and zero to 7.975 psig. The low power con- sumption, humidity-tolerant sensors are EMI/EMC protected, exhibit low hys- teresis, and also have short-circuit and reverse polarity protection, Kavlico said. Kavlico said its EBS sensors can be custom configured with application-
specific electrical and process con- nections. Custom pressure ranges, outputs, accuracy and packaging are also available.
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MANN+HUMMEL USA INC.
TheSintROC filterfrom Mann+Hummel isavailablein sixsizesfor enginesrang- ingfrom100.5 to804.6hp.
Mann+Hummel’s latest develop- ment for diesel particulate filters is the SintROC filter to reduce soot and NO2 emissions of diesel engines. The series was developed for nonroad vehicles and includes six sizes for engines with outputs ranging from 100 to 804 hp. SintROC combines Mann+Hummel’s passive DOC systems and SMF-AR diesel particulate filters (DPF) in one product. As with a DOC system, SintROC regenerates continuously without downtimes. However, it does not require constantly high exhaust gas temperatures, simply higher than 716°F for 10% of the operating time. This requirement is usually satisfied in the engine output range for which SintROC was designed, said the company. The SintROC, like the SMF-AR, is a filter targeted toward applications with intermittent exhaust gas tempera- tures. The filter element has a high ash-holding capacity and can easily be cleaned with a power-wash device. Its element was designed to be robust and to last for the life of the machine. The regeneration of SintROC is fully automatic and is carried out quickly without any machine down- time. The filter functions independent- ly of the diesel sulfur content. Mann+Hummel said the new DPF
40 DIESEL PROGRESS NORTH AMERICAN EDI TION February 2010
TECHNOLOGY OF CLEAN AIR
filter reduces NO2 emissions by up to 70%, an important security aspect in the field of underground mining. The NO2 frequently released by blasting operations together with the NO2 from mining vehicles can reach a dimension that is critical for miners.
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NGK AUTOMOTIVE CERAMICS USA INC. The company introduced two new substrates: the hexagonal cell with increased hydraulic diameter to reduce pressure drop and provide better uniform catalyst distribution, and the high-porosity substrate for high washcoat loadings (DeNox) to increase performance and reduce pressure drop. NGK also announced a more ad- vanced NOx sensor under develop- ment, expected to be launched in 2010, whichisdeveloped for improved performance and better dynamics.
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NOTOX A/S Notox has developed and matured a ceramic technology for the produc- tion of silicon carbide diesel particu- late filters, which was acquired last year from the German filter company AFT GmbH. The technology has a porosity up to 70% and a special microstructure enabling reduced pressure drop while retaining the durability of SiC filters. The compa- ny also announced that an existing North American customer has received CARB verification on its fil- ter system based on the Notox MD200HP filter substrate.
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PARKER HANNIFIN CORP., RACOR DIVISION Racor has developed a range of alternative fuel filters designed and tested for new alternative fuels — compressed natural gas (CNG), liquid natural gas (LNG) and liquid propane
