Classifications

• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
  • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
  • F01C11/00—Combinations of two or more machines or engines, each being of rotary-piston or oscillating-piston type
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
  • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
  • F01K13/00—General layout or general methods of operation of complete plants
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
  • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
  • F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
  • F01C21/06—Heating; Cooling; Heat insulation
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
  • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
  • F01K21/00—Steam engine plants not otherwise provided for
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
  • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
  • F01K25/00—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
  • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
  • F01K27/00—Plants for converting heat or fluid energy into mechanical energy, not otherwise provided for
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
  • F02G1/00—Hot gas positive-displacement engine plants
  • F02G1/04—Hot gas positive-displacement engine plants of closed-cycle type
  • F02G1/043—Hot gas positive-displacement engine plants of closed-cycle type the engine being operated by expansion and contraction of a mass of working gas which is heated and cooled in one of a plurality of constantly communicating expansible chambers, e.g. Stirling cycle type engines

Definitions

• the invention is a gas heat engine with the external supply of heat Q, in which the working substance is a compressed real gas and that works in a perfect closed continuous thermodynamic cycle.
• the task of the invention submitted is to achieve a marked increase in practical efficiency, using a newly designed closed continuous thermodynamic cycle and the actual design of the engine adapted to it, which ensures the best execution of the individual processes in the cycle.
• a gas heat engine which works in a newly designed continuous closed thermodynamic cycle, which comprises two isothermal and two isobaric processes, which, with regard to the engine's design, take place continuously.
• the course of the cycles is as follows: isobaric expansion of the working gas, which takes place during the movement of gas at high pressure p1, from an isobaric compressor through a recuperator and regulator valve to an isobaric engine, where in this first process in the cycle the temperature of the working gas is increased from T to T1 in the recuperator, and in accordance with the gas law the volume of the working gas is increased in the isobaric engine under constant pressure and positive Wizobar isobaric work is performed.
• the working volume in the isobaric engine must always be larger than the working volume in the isobaric compressor, so that the whole process can take place as precisely as possible under constant pressure.
• the working gas is moved from the isobaric engine to an isothermal engine, where it expands isothermally, i.e. under constant temperature its pressure falls from p1 to p, and positive +Wizotherm isothermal work is performed, at the expense of heat Q1, which is transmitted to the engine through a heat-supplying substance, which flows through the container in which both engines are housed.
• the working gas is transmitted from the isothermal engine through the recuperator to an isothermal compressor, where its temperature falls from T1 to T and, at constant low pressure p it is compressed into an isothermal compressor, with negative -Wizobar work being provided to it.
• the working volume in the isothermal compressor must be smaller than the working volume in the isothermal engine, so that the process can be as isobarically precise as possible, i.e. under constant pressure.
• the working gas in the isothermal compressor is compressed isothermally into the isobaric compressor under high pressure p1.
• -Witotherm work is provided to it and in the form of heat Q it is transmitted through a heat-carrying substance at temperature T, which flows through the container in which both compressors are housed. This concludes the whole cycle.
• the whole gas heat engine comprises an assembly made up of hydrostatic rotary machines with a linear and non-linear working area and two work segments, or machines with similar work characteristics, the whole cycle is linked, i.e. continuous, in such a way that during every half-rotation the first half of one cycle and the second half of the previous cycle always take place, so the engine performs two complete cycles during one rotation, meaning that the output performance has the shape of a saw blade.
• the gas heat engine consists of a hydrostatic rotary isobaric compressor, which is connected by a shaft to a hydrostatic rotary isothermal compressor and both are housed in a container through which a cooling substance flows and where a constant lower temperature T is maintained.
• heat Q equal to the supplied -Wizotherm work, is transmitted to the compressor.
• the shaft of the hydrostatic rotary isothermal compressor is connected on the other side through a thermal insulation coupling to the shaft of a hydrostatic rotary isothermal engine, whose shaft is connected on the other side to a hydrostatic rotary isobaric engine, where both engines are housed in a container to which heat Q1 at higher temperature T1 is supplied.
• the machines in both sections are connected by piping through a recuperator, where basically all the actual isobaric processes take place and where the majority of the measured heat cp, through the working gas going from the isobaric-isothermal engine to the isobaric-isothermal compressor, is delivered against the working gas flowing in the opposite direction, including the isobaric work, which is returned in the form of heat together with the measured heat of the gas Qcv to the ongoing cycle.
• the gas heat engine works in such a manner that heat Q1 is supplied to the engine with a higher temperature T1 through a heat-supplying substance, which flows through the container in which the rotary hydrostatic isothermal and isobaric engine is housed.
• the advantage is that the used rotary hydrostatic machines are equipped with two work segments, so the whole cycle takes place continuously, so for each rotation of the engine two cycles take place at the same time, where in every half-rotation the first part of one cycle and, at the same time, the second part of the previous cycle, take place.
• the rotations and performance of the gas heat engine are controlled by the regulator valve.
• a fundamental advantage is that the working volume of the recuperator could be theoretically unlimited, without this having a negative influence on the perfect execution of individual processes.
• thermodynamic isobaric-isothermal-isobaric-isothermal cycle is exactly the same as the Carnot cycle.
• Another advantage is that the usable work Wv can be removed from the compressor shaft, which is cold.
• the gas heat engine will have very wide usage and could gradually replace combustion engines, with regard to the fact that the practical efficiency will be at least comparable, where the engine is simpler in design terms, but heat will be delivered to it by a burner, where it will be possible to perfectly burn hydrocarbons with added oxygen, i.e. with minimal waste gases.
• Figure 2 is a p-V diagram, which shows the course of the thermodynamic cycle in a steam heat engine, where: segment 1-2 represents isobaric expansion, isotherm 2-3 represents isothermal expansion, segment 3-4 represents an isobaric compression and isotherm 4-1 represents isothermal compression.
• the gas heat engine consists of a hydrostatic rotary isobaric compressor 1 , which is connected by a shaft to a hydrostatic rotary isothermal compressor 10 , where a heat-removing substance flows through openings A, B, a constant temperature T is maintained and heat Q is removed during the engine's activity.
• the shaft of a hydrostatic rotary compressor 2 is connected on the other side through a thermal insulation coupling 8 to the shaft of a hydrostatic rotary isothermal engine 4 , whose shaft is connected on the other side to a hydrostatic rotary isobaric engine 3 , where both engines 4 and 3 are housed in a container 9 , where the heat-supplying substance that delivers heat Q1 at higher temperature T1 flows through openings D and C to the engine.
• the output from the hydrostatic rotary isobaric compressor 1 housed in a container 10 is connected by piping through a recuperator 7 and a regulator valve 6 to the hydrostatic rotary isobaric engine 3 housed in the container 9 , whose output is connected to the input to the hydrostatic rotary isothermal engine 4 , which is also housed in the container 9 , and its output is connected by piping through the recuperator 7 to the input to the hydrostatic rotary isothermal compressor 2 housed in the container 10 , where its output is connected through a check valve 5 to the input to the hydrostatic rotary isobaric compressor 1 also housed in the container 10 , from the shaft of which on the other side usable work Wv is taken.

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• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• General Engineering & Computer Science (AREA)
• Chemical & Material Sciences (AREA)
• Combustion & Propulsion (AREA)
• Structures Of Non-Positive Displacement Pumps (AREA)
• Compressors, Vaccum Pumps And Other Relevant Systems (AREA)

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Citations (6)

Family Cites Families (3)

• 2024
  • 2024-04-19 CZ CZ2024-148A patent/CZ2024148A3/cs unknown
• 2025
  • 2025-04-02 EP EP25168004.7A patent/EP4636229A1/en active Pending

Patent Citations (6)

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