Hybrid drive system with integrated gas generation from carbon-containing solids for a gas engine with turbocharged power support and closed-loop recycling system
The hybrid drive system addresses the limitations of conventional hybrid drives by integrating thermal conversion and closed-loop recycling of carbon-containing residues, enhancing performance and stability with a flammable gas mixture for gas engines.
Patent Information
- Authority / Receiving Office
- DE · DE
- Patent Type
- Utility models
- Current Assignee / Owner
- WIRKUNGSDRIVE UG (HAFTUNGSBESCHRÄNKT)
- Filing Date
- 2026-05-02
- Publication Date
- 2026-07-09
AI Technical Summary
Conventional hybrid drives relying on liquid, gaseous, or electrical energy carriers require external charging or refueling infrastructure, while systems using solid carbon-containing materials face issues with particle formation, thermal instability, and increased wear.
A hybrid drive system integrating a thermal conversion process for carbon-containing residues, including a solids storage unit, dosing and comminution unit, thermal reactor module, gas purification, and closed material cycle, generating a flammable gas mixture for a gas engine with a turbocharger and closed-loop recycling.
The system provides a continuous energy supply, enhances performance, extends range, and supports high loads by using a flammable gas mixture from solid carbon-containing materials, while improving thermal stability and reducing wear.
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Abstract
Description
The invention relates to a drive system for energy conversion in mobile, stationary and maritime units, in particular in watercraft, in which carbon-containing solids are converted into a combustible gas mixture and supplied to a gas engine of a hybrid drive system. Conventional hybrid drives are predominantly based on liquid, gaseous, or electrical energy carriers and require external charging or refueling infrastructure. Systems for the direct use of solid carbon-containing materials, on the other hand, have disadvantages regarding particle formation, thermal instability, deposits, and increased wear. The present invention provides a hybrid drive system which combines the thermal conversion of carbon-containing residues with a gas engine, a charging unit and a closed material cycle. The following are preferred as solid materials: • carbon-containing residues, • fiber-based composites, • polymer-containing filter materials, • cellulose-containing composites, • organically contaminated composite materials, • multilayer fiber-reinforced plastic composites, • and comparable recovered carbon carriers. The hybrid drive system comprises: • a solids storage unit, • a dosing and comminution unit, • a thermal reactor module, • an air or oxygen supply, • a gas purification unit, • a thermally insulated hot gas line, • a buffer volume, • a gas engine, • a charging unit, in particular a turbocharger or compressor, • an exhaust gas recirculation system, • an electronic power control system, • and a take-back, deposit and material recycling system. Within the reactor module, the thermal activation of the solid takes place under controlled oxygen supply at temperatures between 800°C and 1100°C, thereby generating a flammable gas mixture which preferably comprises carbon monoxide and hydrogen. The generated gas is then cleaned of particles, condensates and residues via a mechanical separator, in particular a cyclone separator, and at least one downstream high-temperature filter unit. After cleaning, the gas is fed via a thermally insulated high-temperature line to a buffer volume, which compensates for pressure fluctuations and ensures a continuous supply to the gas engine. The gas engine is designed as a reciprocating piston engine and coupled with a charging unit, whereby the generated gas serves as an additional energy carrier for increasing performance, extending range and supporting loads. Part of the engine exhaust gases is fed back into the reactor module, thereby increasing thermal stability and improving energy yield. The hybrid drive system is preferably designed for high-performance applications, especially watercraft with speeds up to 180 km / h.
Claims
Hybrid drive system with integrated gas generation from carbon-containing solids for supplying a gas engine, comprising: • a solids storage unit, • a metering unit, • a thermal reactor module, • a gas purification unit, • a buffer volume, • a gas engine, • a charging unit, • an exhaust gas recirculation, wherein a combustible gas mixture is generated from the solids and supplied to the gas engine. Hybrid drive system according to claim 1, wherein the solid material comprises at least one recovered carbon-containing composite material. Hybrid drive system according to claim 1 or 2, wherein the solid comprises polymer-containing filter materials and / or cellulose-containing composite bodies. Hybrid drive system according to one of the preceding claims, wherein the reactor module is operated in the temperature range of 800°C to 1100°C. Hybrid drive system according to one of the preceding claims, wherein the generated gas comprises predominantly carbon monoxide and hydrogen. Hybrid drive system according to one of the preceding claims, wherein the gas purification comprises a cyclone separator. Hybrid drive system according to one of the preceding claims, wherein a pressure-compensating buffer volume is arranged between the reactor module and the gas engine. Hybrid drive system according to one of the preceding claims, wherein the gas engine is coupled with a charging unit. Hybrid drive system according to one of the preceding claims, wherein a portion of the exhaust gases is fed back to the reactor module. Hybrid drive system according to one of the preceding claims, comprising a take-back, deposit and material recycling system for the solid material used. Hybrid drive system according to one of the preceding claims for use in watercraft with speeds up to 180 km / h.