Coil spring energy storage China

What is a coil spring?

The coil spring is a spring with a uniform section and elongated material rolled or vortexed on a plane. Compared to torsion springs, coil springs have the advantage of storing more energy per unit volume, so they are used as mechanical energy storage devices.

How much energy is stored in a coil spring system?

The energy stored in this spring system was 6.06 J, as calculated using Hooke's law. The volume of this system was 91.36 cm3. Therefore, the space utilization rate when using only the coil springs was 62.22 %, and the energy density was 0.066 J/cm3.

Does a coileaf spring system improve space utilization and energy storage?

The CoiLeaf spring system significantly improved space utilization and energy storage compared to commonly used coil spring systems and additional springs with mechanical components, as shown in Fig. 11. Fig. 11. Comparison between CoiLeaf spring system and a common spring system in the CVGC.

What is the energy storage capacity of coileaf spring?

Finally, we fabricated the proposed CoiLeaf spring. The energy storage capacity of the CoiLeaf spring system was experimentally measured as 11.38 J. Compared to the general systems utilized in the Γ-space, the maximum energy-storage capacity of the proposed CoiLeaf spring system was 5.47 times higher.© 2017 Elsevier Inc.

What is the energy storage capacity of a parallel spring?

In case of the parallel spring configuration, the energy storage capacities of the optimized coil spring and the optimal commercially available coil spring were 4.20 J and 4.12 J, respectively, and the difference between their capacities was 1.9%.

What are the benefits of coil spring?

Second, the energy collected by the coil spring can be sued to provide start-up torque for vehicle. Therefore, it is possible to reduce damage to the vehicle motor caused by excessive start-up load. Finally, it can protect the battery by reducing the instantaneous energy consumption of the vehicle battery at start-up.