Cryergon
A HeOntotita venture
Cryergon emblem
Cryergon, Inc. — energy from the cold, power from motion
Κρύος (kryos, cold) · ἔργον (ergon, work)

Energy from
the cold.

Energy from the cold. Power from motion.

A heat engine whose cold side radiates through the 8–13 µm atmospheric window to the deep-space cold, while its sky-facing emitter doubles as the proof mass of a vibration harvester. One structure, two ambient sources — the night sky and the motion already in the ground.

Cold reservoir · the night sky Warm reservoir · the ground Vibration · shared proof mass
01

A gradient that does work

Every clear night the ground stays warm while a sky-facing surface, radiating in the infrared, falls below the air around it. That standing temperature difference — warm earth below, cold sky above — is a thermodynamic gradient. A low-temperature-differential engine runs on it, producing mechanical power after dark, when photovoltaics produce nothing.

Cryergon's departure is structural. The sky-facing emitter is not a passive plate. It is also the seismic mass of a vibration harvester, so the same element that radiates heat captures the motion of the structure it sits on. The slow, reliable engine stroke is used to pluck the harvester — turning guaranteed low-frequency work into efficient harvesting events, even when the air is still.

02

Two pathways, one mass

The channels are complementary in time. Radiative power is largest at night and in still air; ambient vibration is largest by day, when the structure is active. Conditioned together onto one store, the output is steadier than either alone.

Strongest at night

Radiative thermal

The emitter cools below ambient and the engine turns on the resulting ΔT. Slow, low, and dependable — a baseline that holds through the quiet hours.

Strongest by day

Ambient vibration

The emitter mass, suspended over a base on the host structure, converts the vibration around it. The engine stroke plucks the same resonator, so neither source sits idle.

two sources summing in one transducerlive
thermal (slow engine stroke) vibration (ambient) aggregated
03

How the slow stroke harvests fast

An LTD engine turns slowly — a hertz or two. A piezoelectric resonator wants far higher frequencies. The engine's reciprocation plucks the resonator: each release rings it at its own efficient frequency, so reliable low-frequency work becomes efficient high-frequency harvesting — and ambient vibration feeds the very same resonator.

  1. The engine reciprocates at ~1–2 Hz, guaranteed whenever the sky is clear.
  2. A plucker deflects and releases a high-Q resonator once per cycle.
  3. The resonator rings down at its efficient frequency — that's the harvest.
  4. Ambient vibration adds further plucks through the shared emitter mass.
04

Forms it takes

One architecture, many bodies. The shared-mass principle holds from a single ground node to a tiled roof, from a free-piston unit to a buoy.

Ground node

Stake & plate

A single emitter plate over a ground-coupled engine — a continuous nighttime baseline for one remote sensor.

Tiled array

Rooftop field

Modules tiled and aggregated on a shared bus with per-module tracking; watts overnight for a cluster of nodes.

Free-piston

Shared magnetic circuit

Engine reciprocation and ambient vibration transduced through one coil and armature — fewest moving parts.

Marine float

Buoy on water

Water is the warm reservoir; wave motion drives the vibration channel. Built for lakes and coastal waters.

Self-powered node

It listens to what powers it

Ambient vibration is both the sensed signal and an energy source; the radiative pathway carries the node through still hours.

Daytime-capable

Selective & dew-managed

A solar-reflective, IR-emissive stack with anti-dew drainage extends the engine into daylight and humid nights.

05

At a glance

~10 °C
working ΔT, clear night
~0.4 W/m²
radiative-engine output
1–500 Hz
vibration tuning range
24 h
two channels, day and night

Representative values for illustration, not performance guarantees; output scales with emitter area, mass, and site conditions.

06

Where it runs

Anywhere a clear sky and ambient motion coexist and battery servicing is costly.

Structural-health monitoring Environmental sensors Agricultural & greenhouse Pipeline & grid telemetry Marine & lacustrine buoys Edge gateways Remote instrumentation Off-grid building airflow
07

Status

Provisional patent application — 2026. A twelve-figure specification with claim architecture centered on the shared-mass, dual-pathway structure described here. Cryergon, Inc. is a venture of HeOntotita Corporation.

Cryergon is pre-commercial. Inquiries from researchers, integrators, and counsel are welcome.

cryergon.com contact@heontotita.com
Sibling ventures

Caducel · Hapacta · Ditoxo
Ophinil · Atremia · Keraunophylax
Mnemostasis · Sigephylax · Cryergon

Each incorporated as a freestanding entity under the HeOntotita holding structure.