Savi says DynoValvePro achieves testing milestone

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SaVi Media Group has announced that its core product, the DynoValvePro, has reduced tailpipe emissions and particulate matter while improving fuel economy during its latest testing phase.

Savi says it initially evaluated an “open system,” which is the normal operating condition of a diesel engine. Diesel engines vent the “blow-by” gases and oil vapors from a “draft tube” to the atmosphere, unlike gasoline automobiles that have a PCV (positive crankcase valve) that seals the engine, and re-circulates the “blow-by” gases to the intake manifold to be reburned.

Savi says that after operating the test engine for 33.75 hours in the “open system,” the engine “blow-by” was measured and the oil accumulation was 3.7 grams. A baseline test was run according to the Federal 8-Test Cycle as specified in the Code of Federal Regulations (40 CFR), Part 89 to measure the tailpipe emissions. A modified baseline was developed to add the “blow-by” gases in to the tailpipe to measure the total emissions. SaVi’s DynoValvePro then was installed between the “draft tube” and the intake to seal the engine and introduce the “blow-by” gases into the intake of the engine to be reburned and to filter the oil vapors and return them to the crankcase.

According to the company, the results indicate notable reduction in tailpipe emissions and particulate matter, while improving fuel economy. The reductions were 5.1 percent in hydrocarbons, 5.1 percent in carbon monoxide and 5.5 percent in nitrogen oxides, while increasing fuel economy by .3 percent, Savi says.

“Considering the test engine is relatively new, the recorded amount is considered notable and the total amount could be expected to be significantly greater in an older engine that may not be as well maintained,” says Joe Jones, CEE research director. “The measurable ‘blow-by’ of engine combustion variable [oil film/droplets, oil residues, gases] from an individual engine is particularly meaningful when considered in context of the large volume of vehicles that currently use the same engine.”

“I am very pleased with this latest series of test results,” says Greg Sweeney, chief executive officer of Santa Ana, Calif.-based SaVi Media Group. “The reduction in emissions is significant, especially considering the test engine was relatively new. We intend to begin testing different types of engines that have more hours of service and expect to achieve even greater results. With the new federal regulations that went on January 1 requiring cleaner diesel engines, we believe our technology will help trucking companies comply with the new laws while increasing fuel efficiency.”