5/11. This illustrates where the brake proportioning valve should be locatedâbetween the master cylinder and the rear brakes. 6/11. Production cars usually come with something called a combination valve that includes both a brake pressure warning light and a fixed rear brake proportioning valve.
The future is here: mass-market hydrogen cars take to Britain's roads. Billed for the last decade as a clean alternative to petrol or electric vehicles, hydrogen cars are no longer a car show concept but a driving reality. The challenge for manufacturers now is widescale adoption. This article is 1 year old.
In years to come, hydrogen itself may become one of the most important fuels for cars as on burning it does not produce carbon dioxide, but there are major problems to be overcome before it can be used in this way, including its manufacture, storage and distribution. Figure 1 Uses of hydrogen.