Progress is being made on exoskeletons for US special forces. The exoskeletons are designed to increase strength and protection and help keep valuable operators alive when they kick down doors and engage in combat.
The technologies currently being developed include
- body suit-type exoskeletons
- strength and power-increasing systems and
- additional protection.
Liquid Piston high efficiency engine
high compression ratio (CR), constant-volume (isochoric) combustion, and overexpansion, has a theoretical efficiency of 75% using air-standard assumptions and first-law analysis. This innovative rotary engine architecture shows a potential indicated efficiency of 60% and brake efficiency of over 50%. As this engine does not have poppet valves and the gas is fully expanded before the exhaust stroke starts, the engine has potential to be quiet. Similar to the Wankel rotary engine, the ‘X’ engine has only two primary moving parts – a shaft and rotor, resulting in compact size and offering low-vibration operation. Unlike the Wankel, however, the X engine is uniquely configured to adopt the HEHC cycle and its associated efficiency and low-noise benefits. The result is an engine which is compact, lightweight, low-vibration, quiet, and fuel-efficient.
- High power density – up to 2 HP / Lb (3.3 kW / kg)
- 30% smaller and lighter for spark-ignition (SI) gasoline engines
- Up to 75% smaller and lighter for compression-ignition (CI) diesel engines
In an exoskeleton the engines would only be run to recharge batteries.
A SOCOM statement said some of the potential technologies planned for TALOS research and development include
- advanced armor,
- command and control computers,
- power generators, and
- enhanced mobility exoskeletons.
TALOS will have a physiological subsystem that lies against the skin that is embedded with sensors to monitor core body temperature, skin temperature, heart rate, body position and hydration levels
MIT and Poland working on liquid body armor
MIT is developing a next-generation kind of armor called “liquid body armor.”
Liquid body armor transforms from liquid to solid in milliseconds when a magnetic field or electrical current is applied.
The liquid is called Shear-Thickening Fluid (STF). STF does not conform to the model of Newtonian liquids, such as water, in which the force required to move the fluid faster must increase exponentially, and its resistance to flow changes according to temperature. Instead STF hardens upon impact at any temperature, providing protection from penetration by high-speed projectiles and additionally dispersing energy over a larger area