Shulou(Shulou.com)11/24 Report--

CTOnews.com, July 29, according to Japan's Kyodo news agency, Toyota announced the development of liquid hydrogen engine vehicles under commercial testing in Oita Prefecture, Japan.

Two months after ▲ Touyuan Pexels completed the world's first test race in May, Toyota has now increased the durability of its liquid hydrogen fuel pump by 30%, reduced refueling time from 1 minute and 40 seconds to 1 minute, and reduced its body weight by 40 kilograms. In spite of this, there are still many problems in practical application, and it has not yet reached the stage where the timing of listing can be announced.

Liquid hydrogen needs to be stored below-253 ℃, which makes it more difficult to deal with than gaseous hydrogen. For liquid hydrogen vehicles, the biggest problem is the fuel pump that delivers fuel to the engine, which is difficult to work at ultra-low temperatures because it cannot prevent wear like the fuel pumps of traditional fuel vehicles.

As of May, the operating life of the liquid hydrogen fuel pump was only 10 hours. Toyota has extended its life to 13 hours by improving its parts, but it is still a far cry from the level required for commercial vehicles that can drive more than tens of thousands of kilometers. Toyota said it still has a lot of work to do to find out why it is not working well in a harsh environment and improve it.

CTOnews.com previously reported that German BMW also challenged hydrogen-burning internal combustion engine cars, but is now switching to hydrogen-powered fuel cell vehicles. BMW believes that converting hydrogen into electricity first is a more feasible way to turn cars into hydrogen energy.

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