-
公开(公告)号：US10352272B2
公开(公告)日：2019-07-16
申请号：US15766813
申请日：2016-10-15
Applicant: ThermoLift, Inc.
Inventor： David Yates , Paul Schwartz , Peter Hofbauer , Adrian Tusinean
Abstract: A thermodynamic apparatus, such as a Stirling engine or a Vuilleumier heat pump, has a heat exchanger in which energy is exchanged between a working fluid and an exhaust gas stream. On top of the cylinder of the thermodynamic apparatus is a dome-shaped section. By incorporating the heat exchanger within the dome, the flow paths can be simplified, the number of separate components reduced, and overall weight reduced. Flow passages for the working fluid are embedded in the dome. Channels for the exhaust gases are formed in an outer surface. The passages and the channels are helically arranged, one clockwise and one counter clockwise. The dome can be cast with a core for the casting fabricated via three-dimensional printing. In some embodiments, the dome is made of fiber-reinforced material.
-
公开(公告)号：US20180259023A1
公开(公告)日：2018-09-13
申请号：US15760303
申请日：2016-09-15
Applicant: ThermoLift, Inc.
Inventor： Peter Hofbauer , James F. Smith , Seann Convey , David Yates
CPC classification number: F16F1/028 , F01L1/462 , F01L3/10 , F01L9/04 , F01L2009/0434 , F01L2009/0436 , F02G1/053 , F02G2270/42 , F16F1/06 , F16F3/04 , F16F2226/04 , F16F2232/08 , F16F2234/02 , H01F7/1638
Abstract: Reciprocating apparatuses such as a displacer in a Stirling engine or Vuilleumier (thermally-driven) heat pump and such as a poppet valve in an internal combustion engine have been known to be built with a mechatronic actuator. The reciprocating element has two springs in compression biased against each other. It has been found that conventional springs in compression introduce losses. A spring is disclosed in which a portion of the coil is wound in a clockwise direction and a portion is wound in a clockwise direction. Also, in reciprocation, the spring is in compression at one end of travel and in tension at the other end of travel.
-
公开(公告)号：US20170122626A1
公开(公告)日：2017-05-04
申请号：US15342204
申请日：2016-11-03
Applicant: ThermoLift, Inc.
Inventor： Paul Schwartz , Seann Convey , David Yates , Gregory McFadden
CPC classification number: F25B9/14 , F02G1/057 , F02G2257/00 , F25B2309/003
Abstract: Regenerators for Stirling engines and Vuilleumier heat pumps are difficult to reliably manufacture. A regenerator is disclosed in which edges of the regenerator wire meshes are coated with a stabilizing material. The regenerator wire meshes are then sufficiently stable to be machined to the dimensions of the housing. In some embodiments, the material on the outer surface of the edges of the regenerator is relatively thermally insulating to limit heat transfer to the housing.
-
Patent Agency Ranking
公开(公告)号：US10670306B2
公开(公告)日：2020-06-02
申请号：US15769142
申请日：2016-10-18
Applicant: ThermoLift, Inc.
Inventor： Erik Kauppi , David Yates , Peter Hofbauer , Matthew Duthie
Abstract: Some heat pumps have displacers mechatronically-controlled via springs and coils acting upon a ferromagnetic plate. In some prior art heat pumps, the components are housed in hot parts of the heat pump and in others, the components are housed in a cold part of the heat pump, but the components are offset from a central axis of the heat pump. A heat pump with the mechatronic driver components collinear with a central axis of the heat pump has the components in a cold part of the heat pump.
-
公开(公告)号：US20190145670A1
公开(公告)日：2019-05-16
申请号：US16190947
申请日：2018-11-14
Applicant: ThermoLift, Inc.
Inventor： Peter Hofbauer , YueXin Huang , David Yates , Sai Ronit Kaza
IPC: F25B9/14
Abstract: A thermodynamic apparatus that includes a displacer within a cylinder is disclosed. The displacer reciprocates within the cylinder by a linear actuator that includes electrical coils, an armature, and a coil spring system. The spring system includes collinear first and second coil springs of opposite sense. First ends of the springs are captured in a first plate; second ends of the springs are captured in a second plate. Without constraint, the springs can compensate to forces by bending, rotating, increasing in diameter, and combinations thereof. In certain applications, such as the heat pump, bending should be minimized. By selecting the points of capture of the hooks at the ends of the springs in the plates, bending force of the first spring counteracts the bending force of the second spring.
-
公开(公告)号：US20180283319A1
公开(公告)日：2018-10-04
申请号：US15766813
申请日：2016-10-15
Applicant: ThermoLift, Inc.
Inventor： David Yates , Paul Schwartz , Peter Hofbauer , Adrian Tusinean
IPC: F02G1/055
CPC classification number: F02G1/055 , F02G1/053 , F02G1/057 , F02G2243/00 , F02G2243/30 , F02G2254/50
Abstract: A thermodynamic apparatus, such as a Stirling engine or a Vuilleumier heat pump, has a heat exchanger in which energy is exchanged between a working fluid and an exhaust gas stream. On top of the cylinder of the thermodynamic apparatus is a dome-shaped section. By incorporating the heat exchanger within the dome, the flow paths can be simplified, the number of separate components reduced, and overall weight reduced. Flow passages for the working fluid are embedded in the dome. Channels for the exhaust gases are formed in an outer surface. The passages and the channels are helically arranged, one clockwise and one counter clockwise. The dome can be cast with a core for the casting fabricated via three-dimensional printing. In some embodiments, the dome is made of fiber-reinforced material.
-
公开(公告)号：US20180313582A1
公开(公告)日：2018-11-01
申请号：US15769142
申请日：2016-10-18
Applicant: ThermoLift, Inc.
Inventor： Erik Kauppi , David Yates , Peter Hofbauer , Matthew Duthie
IPC: F25B9/14
Abstract: Some heat pumps have displacers mechatronically-controlled via springs and coils acting upon a ferromagnetic plate. In some prior art heat pumps, the components are housed in hot parts of the heat pump and in others, the components are housed in a cold part of the heat pump, but the components are offset from a central axis of the heat pump. A heat pump with the mechatronic driver components collinear with a central axis of the heat pump has the components in a cold part of the heat pump.
-
公开(公告)号：US11226138B2
公开(公告)日：2022-01-18
申请号：US16190947
申请日：2018-11-14
Applicant: ThermoLift, Inc.
Inventor： Peter Hofbauer , YueXin Huang , David Yates , Sai Ronit Kaza
Abstract: A thermodynamic apparatus that includes a displacer within a cylinder is disclosed. The displacer reciprocates within the cylinder by a linear actuator that includes electrical coils, an armature, and a coil spring system. The spring system includes collinear first and second coil springs of opposite sense. First ends of the springs are captured in a first plate; second ends of the springs are captured in a second plate. Without constraint, the springs can compensate to forces by bending, rotating, increasing in diameter, and combinations thereof. In certain applications, such as the heat pump, bending should be minimized. By selecting the points of capture of the hooks at the ends of the springs in the plates, bending force of the first spring counteracts the bending force of the second spring.
-
-
-
-
-
-
-
Search Results
8
records
(took 0.01 seconds)
