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：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：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：US20170363073A1

公开(公告)日：2017-12-21

申请号：US15536951

申请日：2015-12-16

Applicant: EXERGYN LIMITED

Inventor： Georgiana Tirca-Dragomirescu ,  Kevin O'Toole ,  Barry Cullen ,  Robert Kelly ,  Rory Beirne

IPC: F03G7/06 ,  F01K23/10 ,  F01N5/02 ,  F02G5/04 ,  H01H61/01

CPC classification number: F03G7/065 ,  F01K23/10 ,  F01N5/025 ,  F02G5/04 ,  F02G2260/00 ,  F03G7/06 ,  F05D2300/505 ,  H01H2061/0115

Abstract: An energy recovery device comprising a drive mechanism; an engine comprising a plurality of Shape Memory Alloy (SMA) elements or 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 Shape Memory Alloy (SMA) elements or Negative Thermal Expansion (NTE) elements are positioned to from a gap between adjacent elements and configured to improve heat transfer from a fluid to each element.

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.