Gas Expansion Motors Limited

United Kingdom

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F01K 25/06 - Plants or engines characterised by use of special working fluids, not otherwise provided forPlants operating in closed cycles and not otherwise provided for using mixtures of different fluids 6
F01K 21/04 - Steam engine plants not otherwise provided for using mixtures of steam and gasPlants generating or heating steam by bringing water or steam into direct contact with hot gas 3
F01K 25/08 - Plants or engines characterised by use of special working fluids, not otherwise provided forPlants operating in closed cycles and not otherwise provided for using special vapours 3
F22B 1/14 - Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being steam coming in direct contact with water in bulk or in sprays 3
F22B 1/18 - Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being a hot gas, e.g. waste gas such as exhaust gas of internal-combustion engines 3
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Registered / In Force 6
Found results for  patents

1.

Engine

      
Application Number 17422815
Grant Number 11530627
Status In Force
Filing Date 2019-12-18
First Publication Date 2022-03-03
Grant Date 2022-12-20
Owner Gas Expansion Motors Limited (United Kingdom)
Inventor
  • Pearce, Alan
  • Few, Simon
  • Winter, Natalie

Abstract

The engine has a thermodynamic expander (21) for extracting work from a vaporised working fluid (22) that is fed to a feed for it. There is also a condenser (26) downstream of the expander for condensing expanded vaporised working fluid that is exhausting from the expander. A liquid tank (28) is downstream from the condenser, and pump means (29) is located downstream from the liquid tank for pumping out condensed working fluid (38). Further, there is a means for heating (50) and at least partially vaporising working fluid pumped to it from the pump and feeding the heated working fluid to the expander. The heating means itself has at least one inlet for the working fluid pumped to it, and at least one output from which the working fluid is fed to the expander.

IPC Classes  ?

  • F01K 9/02 - Arrangements or modifications of condensate or air pumps
  • F01K 25/06 - Plants or engines characterised by use of special working fluids, not otherwise provided forPlants operating in closed cycles and not otherwise provided for using mixtures of different fluids
  • F01K 25/08 - Plants or engines characterised by use of special working fluids, not otherwise provided forPlants operating in closed cycles and not otherwise provided for using special vapours
  • F01K 9/00 - Steam engine plants characterised by condensers arranged or modified to co-operate with the engines

2.

ENGINE

      
Document Number 03126041
Status Pending
Filing Date 2019-12-18
Open to Public Date 2020-07-23
Owner GAS EXPANSION MOTORS LIMITED (United Kingdom)
Inventor
  • Pearce, Alan
  • Few, Simon
  • Winter, Natalie

Abstract

An externally heated thermodynamic engine has a closed working-fluid circuit. The engine has a thermodynamic expander (21) for extracting work from a vaporised working fluid (22) that is fed to a feed for it. There is also a condenser (26) downstream of the expander for condensing expanded vaporised working fluid that is exhausting from the expander. A liquid tank (28) is downstream from the condenser, and pump means (29) is located downstream from the liquid tank for pumping out condensed working fluid (38). Further, there is a means for heating (50) and at least partially vaporising working fluid pumped to it from the pump and feeding the heated working fluid to the expander. The heating means itself has at least one inlet for the working fluid pumped to it, and at least one output from which the working fluid is fed to the expander. The engine is adapted and arranged for operation with a working fluid, with the working fluid itself including at least two different boiling point constituent fluids. The pump means is adapted to pump, from the liquid tank to the heating means, both the different boiling point constituent fluids in a determined ratio as liquids, whereby, in use, on feeding of the working fluid to the expander in at least partially vaporised state the vapour and/or liquid of the higher boiling point liquid releases energy in the expander to the vapour of the lower boiling point constituent fluid for production of work in the expander.

IPC Classes  ?

  • F01K 25/06 - Plants or engines characterised by use of special working fluids, not otherwise provided forPlants operating in closed cycles and not otherwise provided for using mixtures of different fluids
  • F01K 25/08 - Plants or engines characterised by use of special working fluids, not otherwise provided forPlants operating in closed cycles and not otherwise provided for using special vapours

3.

ENGINE

      
Application Number GB2019053605
Publication Number 2020/148515
Status In Force
Filing Date 2019-12-18
Publication Date 2020-07-23
Owner GAS EXPANSION MOTORS LIMITED (United Kingdom)
Inventor
  • Pearce, Alan
  • Few, Simon
  • Winter, Natalie

Abstract

An externally heated thermodynamic engine has a closed working-fluid circuit. The engine has a thermodynamic expander (21) for extracting work from a vaporised working fluid (22) that is fed to a feed for it. There is also a condenser (26) downstream of the expander for condensing expanded vaporised working fluid that is exhausting from the expander. A liquid tank (28) is downstream from the condenser, and pump means (29) is located downstream from the liquid tank for pumping out condensed working fluid (38). Further, there is a means for heating (50) and at least partially vaporising working fluid pumped to it from the pump and feeding the heated working fluid to the expander. The heating means itself has at least one inlet for the working fluid pumped to it, and at least one output from which the working fluid is fed to the expander. The engine is adapted and arranged for operation with a working fluid, with the working fluid itself including at least two different boiling point constituent fluids. The pump means is adapted to pump, from the liquid tank to the heating means, both the different boiling point constituent fluids in a determined ratio as liquids, whereby, in use, on feeding of the working fluid to the expander in at least partially vaporised state the vapour and/or liquid of the higher boiling point liquid releases energy in the expander to the vapour of the lower boiling point constituent fluid for production of work in the expander.

IPC Classes  ?

  • F01K 25/06 - Plants or engines characterised by use of special working fluids, not otherwise provided forPlants operating in closed cycles and not otherwise provided for using mixtures of different fluids
  • F01K 25/08 - Plants or engines characterised by use of special working fluids, not otherwise provided forPlants operating in closed cycles and not otherwise provided for using special vapours

4.

Thermodynamic engine

      
Application Number 15752398
Grant Number 10787936
Status In Force
Filing Date 2015-08-13
First Publication Date 2019-01-03
Grant Date 2020-09-29
Owner Gas Expansion Motors Limited (United Kingdom)
Inventor
  • Pearce, Alan Charles
  • Few, Simon
  • Winter, Natalie Adele

Abstract

An expander of the piston (2) and cylinder (3) type is inverted from normal orientation, with the crankshaft (4) upper most and the cylinder “head” (5) lower most. The cylinder head has a pair of liquid injectors (6, 7) oriented for respective liquids pentane and glycerine to be injected as mists into contact with each other at the bottom of the cylinder. The pentane is vaporised by transfer of latent heat to it from the glycerine. Respective injector valves (9, 10) from high pressure rails (11, 12) fed by pumps (14, 15) are provided. An exhaust valve (16) is opened by a cam (17) driven at crankshaft speed by a chain drive.

IPC Classes  ?

  • F01K 25/06 - Plants or engines characterised by use of special working fluids, not otherwise provided forPlants operating in closed cycles and not otherwise provided for using mixtures of different fluids
  • F01K 21/04 - Steam engine plants not otherwise provided for using mixtures of steam and gasPlants generating or heating steam by bringing water or steam into direct contact with hot gas
  • F22B 1/14 - Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being steam coming in direct contact with water in bulk or in sprays
  • F22B 1/18 - Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being a hot gas, e.g. waste gas such as exhaust gas of internal-combustion engines
  • F01B 29/10 - Engines
  • F01K 7/16 - Steam engine plants characterised by the use of specific types of enginePlants or engines characterised by their use of special steam systems, cycles or processesControl means specially adapted for such systems, cycles or processesUse of withdrawn or exhaust steam for feed-water heating the engines being only of turbine type
  • F03G 6/00 - Devices for producing mechanical power from solar energy

5.

THERMODYNAMIC ENGINE

      
Document Number 02995424
Status In Force
Filing Date 2015-08-13
Open to Public Date 2017-02-16
Grant Date 2022-10-18
Owner GAS EXPANSION MOTORS LIMITED (United Kingdom)
Inventor
  • Pearce, Alan Charles
  • Winter, Natalie Adele
  • Few, Simon

Abstract

An expander of the piston (2) and cylinder (3) type is inverted from normal orientation, with the crankshaft (4) upper most and the cylinder "head" (5) lower most. The cylinder head has a pair of liquid injectors (6, 7) oriented for respective liquids pentane and glycerine to be injected as mists into contact with each other at the bottom of the cylinder. The pentane is vaporised by transfer of latent heat to it from the glycerine. Respective injector valves (9,10) from high pressure rails (11,12) fed by pumps (14,15) are provided. An exhaust valve (16) is opened by a cam (17) driven at crankshaft speed by a chain drive. An exhaust pipe 18 leads to a cyclone separator (19), in which the exhaust is caused to swirl, resulting in mist and droplets of glycerine flying out to the wall (20) of the separator and running to its bottom (21), whence it is drained periodically under control of a float valve (22). The pentane vapour is drawn off the centre (23) of the top of the separator. It should be noted that the fluid paths of the engine are closed The pentane vapour is passed to a condenser (26). From the bottom of this also via a float valve (27) liquid pentane is drained. The respective liquids are piped to collect in tanks (28,29). From the glycerine tank, this liquid is pumped by a low pressure pump (30) to a heater (31). This may be of many types, typically a waste-heat heat-exchanger or a solar collector.

IPC Classes  ?

  • F01K 25/06 - Plants or engines characterised by use of special working fluids, not otherwise provided forPlants operating in closed cycles and not otherwise provided for using mixtures of different fluids
  • F01K 21/04 - Steam engine plants not otherwise provided for using mixtures of steam and gasPlants generating or heating steam by bringing water or steam into direct contact with hot gas
  • F22B 1/14 - Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being steam coming in direct contact with water in bulk or in sprays
  • F22B 1/18 - Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being a hot gas, e.g. waste gas such as exhaust gas of internal-combustion engines

6.

SOLAR ENERGY COLLECTOR

      
Application Number GB2015052343
Publication Number 2017/025699
Status In Force
Filing Date 2015-08-13
Publication Date 2017-02-16
Owner GAS EXPANSION MOTORS LIMITED (United Kingdom)
Inventor
  • Pearce, Alan Charles
  • Few, Simon
  • Winter, Natalie Adele

Abstract

A solar energy collector (101) comprises a casing (102) having a transparent window (103) and a plurality of glass tubes (105) connected at their ends to transverse inlet and outlet manifolds (106, 107). The manifolds are mounted, suitably insulated, in the case and carry the glass tubes. Behind the tubes each has a concave channel or generally U-shaped reflector (108) with a cusp (109) centrally in the bottom of its U. In use, the manifolds are connected to a circulation system (111) for heat transfer liquid to be heated by the solar energy collector. The heat transfer liquid has carbon black mixed in with it, in a weight percentage of 1 %. The carbon black acts to absorb energy in incident solar radiation and transfer it to the heat transfer liquid, heating it.

IPC Classes  ?

  • F24J 2/05 - surrounded by a transparent enclosure, e.g. evacuated solar collectors
  • F24J 2/10 - having reflectors as concentrating elements
  • F24J 2/46 - Component parts, details or accessories of solar heat collectors
  • C09K 5/00 - Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerantsMaterials for the production of heat or cold by chemical reactions other than by combustion

7.

THERMODYNAMIC ENGINE

      
Application Number GB2015052344
Publication Number 2017/025700
Status In Force
Filing Date 2015-08-13
Publication Date 2017-02-16
Owner GAS EXPANSION MOTORS LIMITED (United Kingdom)
Inventor
  • Pearce, Alan Charles
  • Winter, Natalie Adele
  • Few, Simon

Abstract

An expander of the piston (2) and cylinder (3) type is inverted from normal orientation, with the crankshaft (4) upper most and the cylinder "head" (5) lower most. The cylinder head has a pair of liquid injectors (6, 7) oriented for respective liquids pentane and glycerine to be injected as mists into contact with each other at the bottom of the cylinder. The pentane is vaporised by transfer of latent heat to it from the glycerine. Respective injector valves (9,10) from high pressure rails (11,12) fed by pumps (14,15) are provided. An exhaust valve (16) is opened by a cam (17) driven at crankshaft speed by a chain drive. An exhaust pipe 18 leads to a cyclone separator (19), in which the exhaust is caused to swirl, resulting in mist and droplets of glycerine flying out to the wall (20) of the separator and running to its bottom (21), whence it is drained periodically under control of a float valve (22). The pentane vapour is drawn off the centre (23) of the top of the separator. It should be noted that the fluid paths of the engine are closed The pentane vapour is passed to a condenser (26). From the bottom of this also via a float valve (27) liquid pentane is drained. The respective liquids are piped to collect in tanks (28,29). From the glycerine tank, this liquid is pumped by a low pressure pump (30) to a heater (31). This may be of many types, typically a waste-heat heat-exchanger or a solar collector.

IPC Classes  ?

  • F01K 25/06 - Plants or engines characterised by use of special working fluids, not otherwise provided forPlants operating in closed cycles and not otherwise provided for using mixtures of different fluids
  • F01K 21/04 - Steam engine plants not otherwise provided for using mixtures of steam and gasPlants generating or heating steam by bringing water or steam into direct contact with hot gas
  • F22B 1/14 - Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being steam coming in direct contact with water in bulk or in sprays
  • F22B 1/18 - Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being a hot gas, e.g. waste gas such as exhaust gas of internal-combustion engines