The document summarizes GenShock technology, which turns wasted heat from hydraulic shock absorbers into electrical power. GenShocks route fluid through hydraulic motors and generators instead of orifices. This dampens springs while powering generators. Testing by the US Army found GenShocks generated over 600 watts, had no failures over 3,000 miles, and outperformed standard shocks. GenShocks could provide fuel savings and pay for themselves, with potential to expand from military to consumer vehicles.

1. GENSHOCK TECHNOLOGY
KRISHNA DAS.E
SAILASH.V
III B.E.Mechanical Engineering
Dr.N.G.P. Institute of Technology

2. BASIC CAR SUSPENSION SYSTEM
 As a vehicle travels over a rough surface, it
undergoes vertical acceleration. This can be
unpleasant for passengers and can degrade the
vehicle over time.
 In modern vehicles, a set of springs and shock
absorbers known as a suspension system serves to
minimize these unwanted effects.
 The spring absorbs kinetic energy involved in
vertical motion of the tyre while the shock absorber
acts as a damper on the spring. Typical shock
absorbers convert spring energy into thermal
energy, releasing wasted heat into the environment.

3. BASIC CAR SUSPENSION SYSTEM

4. HYDRAULIC SHOCK ABSORBERS
 Most modern vehicles make use of hydraulic shock
absorbers.
 In a hydraulic shock absorber, a piston slides back
and forth in a cylinder filled with a viscous fluid,
forcing it through a series of flow valves and tiny
orifices. As the fluid passes through the small
orifices it experiences viscous friction, causing the
fluid to heat.

5. A HYDRAULIC SUSPENSION SYSTEM

6. GENSHOCK SUSPENSION SYSTEM

7. HARNESSING WASTED HEAT
 Genshock technology offers a means for salvaging
the wasted energy associated with hydraulic shock
absorbers.
 Instead of using tiny orifices to create viscous
friction and damp the springs, Genshocks route
fluid through hydraulic motors.
 The fluid experiences resistance as it acts on the
motor, thus damping the springs. Instead of
creating wasted thermal energy, Genshocks create
rotational kinetic energy in a motor which powers
an electric generator.

8. WORKING OF GENSHOCK

9.  When testing the Gen Shock, it was discovered that
each shock absorber generates an average of
around 1 kW while on the road. This would be
enough to displace the large alternator load in
heavy trucks and other large vehicles.

10. INSTALLATION OF GENSHOCK
 GenShock is a turnkey solution that replaces
normal shock absorbers.
 Installation is a simple bolt-on retrofit, with the
electrical leads of each shock wired into a central
power regulator and into the truck's electrical bus.
 Quick, easy, and inexpensive.

11. VEHICLE WITH GENSHOCK INSTALLED

13. TESTING OF GENSHOCK BY US MILITARY
 US Army's Tank Automotive Research, Development, and
Engineering Center (TARDEC) recently completed a four
week accelerated durability test of GenShock technology on
the M1152 HMMWV.
 Testing was conducted under a CRADA agreement between
Levant Power and US Army. On an MTS 4-post hydraulic
shaker, the 3,000 mile test rotated six Aberdeen Test Center
(ATC) courses, with periodic RMS course characterizations on
the GenShock-retrofit M1152A1 HMMWV Enhanced up-
weighted to 11,570 lbs.
 GenShock was subjected to velocities in excess of 1.5 m/s
and generated peak power outputs of over 600 watts. The
Levant units had a 0% failure rate over the duration of the test
and post-test dynamometer characterization demonstrated
less than 5% deviation from pre-test damping performance.

14. M1152 HMMWV

15.  The US Army test was coupled with an in-house 3.8
million-cycle dynamometer durability test,
exceeding the specification for the original
equipment shock absorber on the HMMWV (MIL-
SCD 12480613). Post-test characterization
demonstrated negligible changes in damping force
from pre-test performance.
 In addition, since GenShock recovers energy, it
runs cooler than an energy-dissipative shock.
Thermal tests indicate that GenShock lasts 71%
longer than a passive shock absorber before
reaching temperature (ambient to 100°C test).

16. ADVANTAGES OF USING GENSHOCK
 Improved Fuel Economy at Low
Cost
 Rapid Return on Investment
 Operational and Maintenance
Savings
 Engineered Reliability and
Durability
 Intelligent Damping Control

17. Active Suspension
Electrical Power
Reduced Operating Costs
Better Handling and Comfort
Easy Installation

18. Greener Vehicles
Increased Range
Weight & Cost Savings
Improved Factory Efficiency

19. FUTURE OF GENSHOCK
 The GenShock system is making its debut in the
military marketplace.
 If all goes well it will soon progress to production in
civilian vehicles, and would likely become available
to consumers as an aftermarket addition to their
vehicles as well.
 Some trucking companies have already installed
the system for testing purposes and, according to
preliminary results, they already anticipate an
astounding 90 percent return on their initial
investment.

20. QUERIES