公开(公告)号：US11781532B2

公开(公告)日：2023-10-10

申请号：US17554472

申请日：2021-12-17

Applicant: Exergyn Limited

Inventor： Kevin O'Toole

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

CPC classification number: F03G7/0614 ,  F02B73/00 ,  F03G1/00

Abstract: An energy-recovery device comprises an engine, an immersion chamber, a drive, and a power module. The engine comprises a core comprising a core element that comprises working material, the core element comprising a fixed first end and a second end that is connected to the drive. The immersion chamber houses the engine and is configured to be sequentially filled with fluid to expand and contract the core element. The power module applies a controlled stress to the core element during at least one of a heating phase and a cooling phase of a power cycle carried out by the engine.

公开(公告)号：US20190154012A1

公开(公告)日：2019-05-23

申请号：US16313199

申请日：2017-06-28

Applicant: Exergyn Limited

Inventor： Kevin O'Toole

IPC: F03G7/06

Abstract: The invention provides an energy recovery system comprising a first Shape-Memory Alloy (SMA) or Negative Thermal Expansion (NTE) core and a first hydraulic chamber in communication with one end of the first core and adapted to convert movement of the core into energy; and a second Shape-Memory Alloy (SMA) or Negative Thermal Expansion (NTE) core and a second hydraulic chamber in communication with one end of the second core and adapted to convert movement of the core into energy. A storage energy device is configured and adapted to absorb the difference in the energy output from the first and second hydraulic chambers during operation.

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：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.