公开(公告)号：US09885344B2

公开(公告)日：2018-02-06

申请号：US14365214

申请日：2012-12-05

Applicant: Exergyn Limited

Inventor： Keith Warren ,  Barry Cullen ,  Kevin O'Toole ,  Nicholas Breen ,  Daniel Healy Grace ,  Robert Kelly

IPC: F03G7/06 ,  F03G1/00 ,  F02B73/00 ,  F02G5/00

CPC classification number: F03G7/065 ,  F02B73/00 ,  F02G5/00 ,  F03G1/00

Abstract: The present application relates to the field of energy recovery and in particular to the use of shape memory alloys (SMA) for same. An energy recovery device is provided which comprises a one way drive mechanism for incrementally winding a spring. An SMA engine comprising a length of SMA material is fixed at a first end and connected at a second end to the one way drive mechanism. The SMA engine is housed in an immersion chamber and adapted to be sequentially filled with fluid to allow heating and/or cooling of the SMA engine to enable high frequency contractions and expansion. An output transmission is provided which is coupled to and driven by the spring. In this manner, repeated contractions of the SMA material incrementally wind the spring to store energy. The spring is restrained by a release mechanism which may be activated to allow the spring to drive an output transmission.

公开(公告)号：US10288049B2

公开(公告)日：2019-05-14

申请号：US15741021

申请日：2016-06-29

Applicant: EXERGYN LIMITED

Inventor： Georgiana Tirca-Dragomirescu ,  Keith Warren

IPC: F03G7/06 ,  F16J1/09

Abstract: The invention provides an energy recovery system comprising a first Shape Memory Alloy (SMAs) or Negative Thermal Expansion (NTE) core and adapted to convert movement of the core into energy in response to a first temperature. Various embodiments are disclosed to include cascaded core arrangements, preheating/cooling of cores and how to decrease the time of reaction for the shape memory alloy in an efficient manner.

公开(公告)号：US20180149141A1

公开(公告)日：2018-05-31

申请号：US15536931

申请日：2015-12-16

Applicant: EXERGYN LIMITED

Inventor： Barry Cullen ,  Georgiana Tirca-Dragomirescu ,  Kevin O'Toole ,  Keith Warren ,  Ronan Byrne ,  Robert Kelly

IPC: F03G7/06

CPC classification number: F03G7/065 ,  F03G7/06

Abstract: An energy recovery device comprising a drive mechanism; an engine comprising a plurality of Shape Memory Alloy (SMA) Negative Thermal Expansion (NTE) elements fixed at a first end by a holder element and connected at a second end to a drive mechanism wherein a compensation mechanism is positioned and adapted to combat the shrinkage of the SMA or NTE elements encountered in heating cycles.

公开(公告)号：US20170198682A1

公开(公告)日：2017-07-13

申请号：US15315083

申请日：2015-05-29

Applicant: EXERGYN LIMITED

Inventor： Barry Cullen ,  Kevin O'Toole ,  Geogiana Tirca-Dragomirescu ,  Keith Warren ,  Rory Beirne

IPC: F03G7/06

CPC classification number: F03G7/065

Abstract: The invention provides an energy recovery device comprising an engine comprising a plurality of Shape Memory Alloy (SMA) or Negative Thermal Expansion (NTE) elements fixed at a first end and connected at a second end to a drive mechanism wherein a holder is configured with a plurality of slots adapted to receive the plurality of Shape Memory Alloy (SMA) or NTE elements.

公开(公告)号：US10563640B2

公开(公告)日：2020-02-18

申请号：US15536931

申请日：2015-12-16

Applicant: EXERGYN LIMITED

Inventor： Barry Cullen ,  Georgiana Tirca-Dragomirescu ,  Kevin O'Toole ,  Keith Warren ,  Ronan Byrne ,  Robert Kelly

IPC: F03G7/06

Abstract: An energy recovery device comprising a drive mechanism; an engine comprising a plurality of Shape Memory Alloy (SMA) Negative Thermal Expansion (NTE) elements fixed at a first end by a holder element and connected at a second end to a drive mechanism wherein a compensation mechanism is positioned and adapted to combat the shrinkage of the SMA or NTE elements encountered in heating cycles.

公开(公告)号：US10036118B2

公开(公告)日：2018-07-31

申请号：US15535153

申请日：2015-12-14

Applicant: EXERGYN LIMITED

Inventor： Barry Cullen ,  Kevin O'Toole ,  Georgiana Tirca-Dragomirescu ,  Keith Warren ,  Ronan Byrne ,  Rory Beirne

IPC: F03G7/06 ,  D07B1/06 ,  E01D19/16

CPC classification number: D07B1/0673 ,  D07B5/00 ,  D07B2201/2009 ,  D07B2205/3085 ,  E01D19/16 ,  F03G7/065 ,  D07B2801/10

Abstract: A plurality of wire elements for use in an energy recovery device comprising Shape Memory Alloy or other Negative Thermal Expansion (NTE) material, wherein at least one wire element is fixed at one end and free to move at a second end, such that the wire elements are arranged adjacently and are in friction or interference contact with each other and are secured at the outer perimeter of wires utilising a securing means. In such arrangement, during the operation of the bundle arrangement in a heat engine system, the plate elements act to transmit the aggregated force generation of the wire grouping and thus usefully recover and transmit power.

公开(公告)号：US09995289B2

公开(公告)日：2018-06-12

申请号：US15315083

申请日：2015-05-29

Applicant: EXERGYN LIMITED

Inventor： Barry Cullen ,  Kevin O'Toole ,  Geogiana Tirca-Dragomirescu ,  Keith Warren ,  Rory Beirne

IPC: F03G7/06

CPC classification number: F03G7/065

Abstract: The invention provides an energy recovery device comprising an engine comprising a plurality of Shape Memory Alloy (SMA) or Negative Thermal Expansion (NTE) elements fixed at a first end and connected at a second end to a drive mechanism wherein a holder is configured with a plurality of slots adapted to receive the plurality of Shape Memory Alloy (SMA) or NTE elements.

公开(公告)号：US20180216604A1

公开(公告)日：2018-08-02

申请号：US15884536

申请日：2018-01-31

Applicant: Exergyn Limited

Inventor： Keith Warren ,  Barry Cullen ,  Kevin O'Toole ,  Nicholas Breen ,  Daniel Healy Grace ,  Robert Kelly

IPC: F03G7/06 ,  F03G1/00 ,  F02B73/00 ,  F02G5/00

Abstract: The present application relates to the field of energy recovery and in particular to the use of shape memory alloys (SMA) for same. An energy recovery device is provided which comprises a one way drive mechanism for incrementally winding a spring. An SMA engine comprising a length of SMA material is fixed at a first end and connected at a second end to the one way drive mechanism. The SMA engine is housed in an immersion chamber and adapted to be sequentially filled with fluid to allow heating and/or cooling of the SMA engine to enable high frequency contractions and expansion. An output transmission is provided which is coupled to and driven by the spring. In this manner, repeated contractions of the SMA material incrementally wind the spring to store energy. The spring is restrained by a release mechanism which may be activated to allow the spring to drive an output transmission.

公开(公告)号：US20170362772A1

公开(公告)日：2017-12-21

申请号：US15535153

申请日：2015-12-14

Applicant: EXERGYN LIMITED

Inventor： Barry Cullen ,  Kevin O'Toole ,  Georgiana Tirca-Dragomirescu ,  Keith Warren ,  Ronan Byme ,  Rory Beirne

IPC: D07B1/06 ,  E01D19/16 ,  F03G7/06

CPC classification number: D07B1/0673 ,  D07B5/00 ,  D07B2201/2009 ,  D07B2205/3085 ,  E01D19/16 ,  F03G7/065 ,  D07B2801/10

Abstract: A plurality of wire elements for use in an energy recovery device comprising Shape Memory Alloy or other Negative Thermal Expansion (NTE) material, wherein at least one wire element is fixed at one end and free to move at a second end, such that the wire elements are arranged adjacently and are in friction or interference contact with each other and are secured at the outer perimeter of wires utilising a securing means. In such arrangement, during the operation of the bundle arrangement in a heat engine system, the plate elements act to transmit the aggregated force generation of the wire grouping and thus usefully recover and transmit power.