The key to Toyota's system is a three-way catalytic converter that reduces NOx using a special nitrogen oxide-absorbing material. Toyota introduced the system to its lean-burn systems in 1994 and to its direct-injection petrol engine in 1996. So far, it has installed the system on 300,000 cars for the Japanese market. A spokesman said: 'Toyota is willing to license patents on environment-related technologies such as this to any company, domestic or overseas, that wants to introduce them.'
Toyota to share three-way 'cat'
14/05/1999 in NEWS