How does Direct Injection work?
This week we’re going to be looking at another market-wide feature available in a number of vehicles from a number of manufacturers, not just Toyota. Today’s How’s This Work will focus on a technology not just found in your car, but specifically in your engine. We’re talking about Direct Injection, two words you’ve probably heard a lot when researching a vehicle’s engine, but also something you might not exactly understand. We thought we’d clear it up!
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What is Direct Injection?
Direct Injection is a technology that deals with how the fuel is injected into your vehicle’s engine. Conventionally, a multi-point fuel injection is standard. In this method, fuel is injected into the intake track or cylinder port rather than right into the engine. Direct injection on the other hand injects the fuel directly – hint hint – into the combustion chamber. In multi-point, a low pressure injection method is fine, but in direct injection you need a high pressure method to inject the fuel directly into the combustion chamber.
So, what’s the big deal? Well it has been proven that in many engines featuring direct injection, a stratified fuel charge or ultra-lean burn is enabled in the combustion, thus improving fuel efficiency and even reducing emission levels a bit. In this day and age, both of those things are pretty important. 8 years ago, only 2.3 percent of production vehicles featured direct injection, but last year that number jumped up to 45%.
We expect that number to keep climbing in years to come, and if you like the sound of it be sure to purchase a vehicle that’s engine features direct injection. You can feel free to give us a call with any further questions about direct injection or how it works, as well as to find out which Toyota vehicles come with direct injection in the engine. You can also watch the video below for a look at a special direct inject method available in some Toyota vehicles.