Technical Description
General Specification
Background

One Solution. One Vision.

Sierra Emissions Systems' mission is to develop world-class particulate partial flow sampling systems (PPFSS) that provide the highest quality sample data, greatly increase testing efficiency, drastically reduce costs, and improve test-cell safety. Sierra has a great track record. Throughout the 1990's, Sierra's Model BG-1 and Model BG-2 became the leading PPFSS in the world.

Now, Sierra has developed the next generation in this successful product line—the Model BG-3. After 30 years of using bulky, expensive, and maintenance-prone full-flow CVS to demonstrate engine compliance to exhaust particulate emissions regulations, engine manufacturers now have a more cost-effective and efficient tool to develop and certify cleaner engines.

Innovative Partnership.

Sierra has forged a unique partnership with Caterpillar and CP Engineering. Together, engineers from all three companies worked as a team to develop, design, and test the Model BG-3 to meet the stringent needs of engine manufacturers through cutting-edge technology and patented inventions. Sierra's BG is truly the next generation in emissions sampling.

This partnership allows Sierra to design the most innovative and state-of the art product on the market. Sierra owns the exclusive worldwide license on Caterpillar's patented micro-dilution technology Patent #5,058,440 and systems flow control features described in United States patent #6,615,677 and two additional US patents. Sierra Emissions Systems is a wholly owned subsidiary of Sierra Instruments, Inc.

In addition to Sierra's Caterpillar partnership, other technology partnerships are shaping Sierra's next generation emissions sampling tools and test cell automation technologies to complement the BG.  Sierra's mission is to continue to partner with world-class companies through our commitment to innovation, continuous process improvement, and customer responsiveness.