Natwerk Designs

What are some designs that modern vehicles have to limit NOx (oxides of nitrogen) emissions?

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Public Comments

1. depends on the car. the most popular way to lower nox is use of an egr valve. this stands for exhaust gas recirculation. the burnt exhaust gases, a small amount, are introduced back into the combustion chamber, and slightly lower the combustion temperature. this reduces nox. a side benefit of this is getting rid of spark-knock, or ping, on acceleration. (some)diesels use a device that cools exhaust gases before they are exhausted out the back.
2. Reducing Gas Prices We can reduce gas prices, and in many cases reduce our expenses in other areas, by reducing the demand for petroleum products. How do we reduce demand? Easy. Reduce consumption. Here are some suggestions on how to do that: 1. Make sure your tires are properly inflated. Improperly inflated tires reduce gas mileage. Most tires should be inflated to 32-35 psi, but look on your tires for specific numbers. 2. Make sure your engine is properly tuned. An out of tune engine wastes gas and money. Have it checked. 3. When you stop at a stop light, stay stopped until the light is green. Don’t try to ease up a little at a time – this not only wastes gas, but wears out your brakes sooner than normal. 4. Accelerate slowly. Rapid acceleration (“jack rabbit starts”) wastes gas. 5. Use synthetic oil whenever you change or have your oil changed. Since it’s synthetic, you are not using a petroleum product therefore you are reducing demand. Most cars actually get better gas mileage with synthetic oil, so it’s a win win. 6. Whenever possible, use alternative fuels such as biodiesel or E85. They not only reduce petroleum consumption, but they are cheaper and better for the environment. Unfortunately, they are not widely available yet in most places, but start asking about them when you buy gas and fuel distributors will begin to get the message; if they think there is a market, they will supply that market. 7. Don’t rush out to buy a new car… but if you are in the market for one anyway, consider buying a more fuel efficient car or even a hybrid car. Hybrid cars are more expensive but you can get a federal tax credit which will offset much of the extra expense and if you do a lot of driving, the money you save on gas will offset the rest. 8. Carpool.