Electric Heating Steam Engine for Fast Start-Up

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Solution Overview

Problem

Steam engines for road motor vehicles face challenges such as complexity, high costs, longer start-up times, and environmental concerns, leading to a decline in research and development since the advent of internal combustion engines.

Innovation Solution

A closed-circuit steam engine design featuring an electric heating boiler, a depression tank, and a high-pressure steam motor with double-acting pistons, connected by sealed pipes and a turbocharger, utilizing a fatty hydrocarbon fluid and an alternator to recharge the battery, forming a compact, efficient, and environmentally friendly system.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Speed

If a traditional boiler is used to heat water to operating temperature, then the steam engine can generate sufficient power, but the start-up time becomes excessively long (more than a minute)

Engineering Contradiction:
Improvestart-up speedVSAvoidstart-up time
Core Design Contradiction:
SpeedVSLoss of time

Solution Approach 1:

The patent applies preliminary action by pre-heating a small quantity of water in the boiler before full operation begins. The system starts by heating a limited amount of water to operating temperature using the combustion chamber, enabling the engine to start producing steam and power much faster than waiting for the entire water volume to heat up. This preliminary heating of a portion of the working fluid resolves the contradiction between achieving operating temperature and minimizing start-up time.

Inventive Principle:
Principle #10Preliminary action

2Adaptability or versatility

If a steam engine system is designed with all necessary components (boiler, cylinders, condenser, etc.), then the engine can function as a complete steam-powered vehicle, but the device complexity increases significantly

Engineering Contradiction:
Improvefunctional completenessVSAvoidsystem complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent merges multiple functions into integrated components. The combustion chamber serves both as the heat source and part of the thermal management system. The boiler is designed as a compact unit that combines water heating, steam generation, and pressure regulation functions. The system integrates the exhaust system to drive the turbocharger, which in turn forces air into the combustion chamber, creating a coupled thermal-mechanical system that reduces overall complexity while maintaining functional completeness.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

Components are designed with multiple functions. The combustion chamber not only heats the working fluid but also its exhaust provides mechanical energy to the turbocharger. The turbocharger serves dual purposes: forcing air into the combustion chamber for efficient combustion and driving the exhaust flow through the system. This multi-functionality reduces the number of separate components needed, thereby reducing system complexity while maintaining complete steam engine functionality.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Power

If a complete steam engine system with combustion chamber and turbocharger is implemented, then the engine achieves better efficiency and power, but the manufacturing cost increases

Engineering Contradiction:
Improveengine powerVSAvoidmanufacturing cost
Core Design Contradiction:
PowerVSEase of manufacture

Solution Approach 1:

The system applies self-service through the turbocharger arrangement where the exhaust gases from the combustion chamber automatically drive the turbocharger, which in turn forces air into the combustion chamber. This self-sustaining arrangement improves combustion efficiency and engine power without requiring external power sources or additional complex control systems. The exhaust energy is utilized productively rather than being wasted, improving overall efficiency while avoiding the need for externally powered blowers or compressors that would increase manufacturing costs.

Inventive Principle:
Principle #25Self-service

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The system achieves faster start-up times, improved efficiency, reduced emissions, and increased reliability, while maintaining the use of steam as a primary energy source, making it more viable for modern applications.

Implementation Method 1

a heating/boiler chamber (10) containing a first heating means (12) that brings a fluid to a vapor state

Methodology Applied
Scientific EffectJoule heating: Joule Heating

Implementation Method 2

a first compression chamber (C1) connected to a first vaporized fluid inlet (52) communicating with the second pipe (50) and with a first vaporized fluid outlet (55) and a second compression chamber (C2) connected to a second vaporized fluid inlet (54) also communicating with the second pipe (50) and with a second vaporized fluid outlet (57)

Methodology Applied
Scientific EffectPressure gradient: Pressure Gradient

Implementation Method 3

the piston rod (62) being connected to a connecting rod/crank assembly (110) rotating a drive shaft (114) by means of the reciprocating linear motion of said rod (62)

Methodology Applied
Scientific EffectMechanical advantage: Mechanical Advantage

Data Source

PatentEP4339423B1Steam engine with an electric heating chamber connected to a rechargeable battery
Publication Date: 2025.01.01 HUET CHRISTIAN
  • EP4339423B1 patent drawingFigure 1

AI summary

The invention relates to a steam engine (M) comprising at least one fluid (F) reservoir (20), a first pipe (30) for transporting the fluid (F) from the reservoir (20) to a heating chamber (10) containing a first heating element (12) for vaporizing said fluid (F), a second inlet pipe (50) for transporting the vaporized fluid (F) from the heating chamber (10) to a high-pressure steam propulsion chamber (40) within which moves at least one double-acting piston (60) having a rod (62) and a head (64) on either side of which are defined a first compression chamber (C1) and a second compression chamber (C2), and a third exhaust pipe (70) for transporting the vaporized fluid from the propulsion chamber (40) to the vacuum reservoir (20), the first heating element (12) being electric and connected to a power supply battery. (120).