ENVIRONMENTAL ACTIVITIES

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Activities in the End-of-Vehicle-Life Stage

We have conducted numerous studies on ease of dismantling and recycling of end-of-life vehicles, and share the knowledge and techniques we have gained with our people involved in earlier phases of the life cycle to improve the process as a whole. We are finding ways to recycle as many parts as possible for use in new vehicles without allowing the quality of the reused material to degrade.

Experimental studies on dismantling

Nissan believes that to promote recycling of end-of-life vehicles it is important to design and produce vehicles that are easy to dismantle. We are also thinking of better ways to dispose of the automobile shredder residue after removing valuable materials that can be recycled and parts that can be reused after dismantling.
We have conducted experimental studies on development of efficient dismantling methods for the proper disposal of end-of-life vehicles, recycling of materials, and reuse of parts.
In past dismantling experimental studies, the main subject has been how to dispose of environment-impacting substances such as waste oil, fluids and lead. Over the past several years, however, research has been done on ways to improve recycling efficiency with the aim of reusing materials with high added value.
While improving dismantling technology, we provide feedback from the findings of these studies to our development department, so that they can be reflected in materials design and in design for ease of dismantling.

Evaluation of ease of dismantling

Evaluations of ease of part removal are done with the use of simulations and actual vehicles, to advance the proper disposal of end-of-life vehicles, recycling of materials, and reuse of parts.


Evaluation with computer simulations


Evaluation with actual vehicles

Results of experimental studies on dismantling

"One-stage drain" waste oil and fluid collector

Using know-how from the Nissan production system, we have developed a "one-stage drain" for efficient, reliable, and inexpensive recovery of waste oil and fluids from a single platform. We began selling this device to vehicle scrapping companies in May 2001. Using the one-stage drain, the amount of waste oil and fluids recovered was doubled, and a process that took 40 minutes in the past was shortened to less than seven minutes.

Engine long-life coolant (LLC) recycler

In addition to its principle component of ethylene glycol, engine long-life coolant contains many preservatives and depleted substances, such as decomposed elements and metallic ions produced in the course of use. Nissan developed an engine long-life coolant (LLC) recycler for appropriate treatment of these substances.

"Oil element cutter" oil thrower

We developed and are selling a simple oil element cutter for oil element throwing, which had been a time-consuming process in the past. This device cuts the elements and separates them into metal parts and paper filters, so that the metal sections can be reused.

Use of a deployment device for vehicles with air bags

Nissan began using deployment devices for air bags on new vehicles in 1998. With this device, air bags can be effectively deployed and dismantled.

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