Blog Layout

What Is CNG Fuel? A Guide Explaining How CNG Vehicles Work

What is a CNG vehicle? They aren’t that common, but they're vehicles that are powered by natural gas instead of gasoline. The engine functions in the same way as a gasoline-powered combustion engine. Have you thought about what CNG fuel is?


In this blog, we briefly breakdown how CNG vehicles work. 


Explaining CNG Engines


We explain step by step how your CNG vehicle breaks down natural gas into fuel: 


1.) CNG is compressed to 3600 psi and enters the vehicle through the CNG fill receptacle.


2.) It flows into high-pressure cylinders located in or under the vehicle.


3.) For a bi-fuel NGV, the vehicle will operate on CNG vehicles until the fuel runs out; then, it will switch to gasoline until the CNG tank is refilled. A fuel selector on the dash permits the driver to manually override the system and switch between CNG or gasoline. A dedicated NGV operates solely on CNG.


4.) When needed the CNG leaves the cylinders and passes through the (PRD) pressure relief device and electric solenoid shut-off valve (Which stops the flow of CNG fuel when the engine is not running or in the case of a bi-fuel vehicle, gasoline is selected).


5.) The CNG fuel travels through a short high-pressure fuel line and enters a (10 micron) coalescent filter, which removes oil droplets and other contaminates from the CNG.


6.) The CNG now enters the pressure regulator, which reduces pressure from up to 3,600 psi to approximately 70 - 125 psi.


7.) The CNG flows through a low-pressure fuel line and enters the fuel rail, which supplies pressurized fuel to all the specially designed CNG fuel injectors.


8.) The CNG injectors inject the CNG into the engine’s cylinder intake valves.


9.) The ECM (electronic control module) controls the sequential multi-port fuel injection pulse widths or amount of CNG fuel the injectors inject into the engine. This system allows each cylinder’s injector to open just before the intake valve opens.


Choose Advanced Vtech 


Every vehicle needs regular maintenance. If you need any automotive services for your CNG vehicle, book a service appointment today in Buffalo Grove. To learn more about what CNG fuel is and how to maintain your car’s engine, you can explore our blogs. 


Source: Altech-Eco

You might also like

Choosing the Right Suspension for Your Driving Needs

By Tony Mers • 29 Oct, 2024
The suspension system impacts many aspects of your vehicle, from ride comfort to vehicle handling. Whether you want to enhance your vehicle’s performance or enjoy a smoother drive, review these tips for choosing the right suspension for your driving needs. Learn About the Different Types of Suspensions Start your search by familiarizing yourself with the different types of automotive suspensions. Independent suspensions, such as MacPherson strut and double wishbone setups, can improve ride quality. Alternatively, solid axle suspensions provide durability and load-bearing capabilities. Understanding these options will help you match the suspension type to your driving needs. Consider the Way You Drive Another tip is to find a match for your driving habits. For example, a performance-oriented suspension with stiff springs and shocks may be best if you enjoy spirited driving and frequently take corners at high speeds. Conversely, a standard suspension is better if you primarily use your car for daily commuting and long highway drives. Evaluating your driving style will guide you toward a suspension that enhances your experience behind the wheel. Determine Your Car’s Weight You must also find a suspension system that supports your vehicle’s weight. Every suspension has a weight rating, and ignoring it can damage your vehicle and put you in danger. Check the manufacturer’s specifications to confirm that the suspension you’re considering will tolerate your vehicle and additional cargo or modifications. Think About Where You Travel When looking at suspensions, you should consider where you drive your vehicle. If you frequently take rough trails or uneven surfaces, an off-road suspension with increased ground clearance and durable components will serve you well. On the other hand, you should turn to a standard suspension if you mainly drive on city streets and highways. Tailoring your suspension to your driving environment enhances safety and driving pleasure. Make It Work With Your Budget While you may feel tempted to splurge on top-tier suspension systems, keep your budget in mind. High-end suspensions offer superior performance and durability but come at a premium price. Conversely, you may be able to find more affordable options that provide substantial improvements over stock suspensions. Assess your financial situation and set a realistic budget to get the best value without compromising on quality. Considering these factors will help you choose a suspension that makes your driving experience more comfortable and enjoyable. If you need to repair or replace your current system, Advanced Vehicle Technology Services can help. With our suspension service , you’ll enjoy smooth rides in your car once again and have more control while steering.
A mechanic changes the oil on a vehicle and lets the old oil pour into a bucket.

Tips for DIY Maintenance & When To Leave It to Professionals

24 Sep, 2024
You can provide care to your vehicle, but there are tasks only pros should handle. Learn tips for DIY maintenance and when to leave it to the professionals.
A mechanic wearing a blue shirt and glasses works on a suspension system underneath a lifted car.

5 Common Reasons Your Suspension Goes Bad

14 Aug, 2024
Your suspension is just as important to your car as the engine. Become a better car owner by learning five common reasons your suspension goes bad.
More Posts
Share by: