Stop-Start - is it worth it?

[Crazy Dazz]

For example, Mazda has a technology called i-Stop that doesn’t use a starter for restarts at all. It uses engine combustion. As a driver releases the brake pedal, the fuel injector in one cylinder fires, and the spark plug ignites, allowing the engine to start with combustion, rather than an electric starter motor.

I imagine in a direct injection engines, with decent compression that could work.

There are also some systems that don't require the starter motor to be activated, but start the car via compression – effectively bump starting the car while it's stationary.

Fuel is pumped into the combustion chamber which forces the piston down thus kick starting the combustion process.

???
Fuel or Air?

Starting Big Diesels with compressed air used to be reasonably common

[Yellow_Festiva]

Originally Posted by Crazy Dazz

I imagine in a direct injection engines, with decent compression that could work.



???

Fuel or Air?



Starting Big Diesels with compressed air used to be reasonably common

Fuel, they forgot to add that they they spark the cylinder to kickstart the engine.

Starting diesels with compressed air?

I've seen a model of tractor that starts with a shot gun shell. Guess which country lol.

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[GasoLane]

Originally Posted by Yellow_Festiva

Fuel, they forgot to add that they they spark the cylinder to kickstart the engine.

Starting diesels with compressed air?

I've seen a model of tractor that starts with a shot gun shell. Guess which country lol.

A Lot of Mack's had them, some were retrofitted to KW's as well.

I drove a Mack with one, it's ok so long as it starts first go. After three tries you need to find another Truck to refill your air tank

[roKWiz]

Originally Posted by GasoLane

A Lot of Mack's had them, some were retrofitted to KW's as well.

I drove a Mack with one, it's ok so long as it starts first go. After three tries you need to find another Truck to refill your air tank

Never run out of air with this guys 3508 air starter cylinder. Start at around the 5 min mark.

Sorry off topic.