Patents Assigned to New Power Concepts LLC
  • Patent number: 11448158
    Abstract: A Stirling cycle machine with a liquid fuel/gaseous fuel burner. The burner may include a preheater to capture the thermal energy of the exhaust. The burner directs the preheated air to each burner head, where it enters a prechamber. Each burner head includes a fuel nozzle that directs liquid or gaseous fuel into the prechamber. The prechamber is fluidically connected to a combustion chamber via a prechamber nozzle that has a smaller opening than the prechamber. The burner head ignites the fuel air mixture in the prechamber with an ignitor located above or within the prechamber. The flame is initially lit as a diffusion flame in the prechamber. The flame is pushed out of the prechamber into the combustion chamber by an increased air flow rate. The liquid fuel from the nozzle now evaporates in the prechamber and forms a prevaporized flame in the combustion chamber.
    Type: Grant
    Filed: August 22, 2019
    Date of Patent: September 20, 2022
    Assignee: New Power Concepts LLC
    Inventors: Dean Kamen, Christopher C. Langenfeld, Prashant Bhat, Stanley B. Smith, III
  • Patent number: 11339743
    Abstract: A Stirling cycle machine with a liquid fuel/gaseous fuel burner. The burner may include a preheater to capture the thermal energy of the exhaust. The burner directs the preheated air to each burner head, where it enters a prechamber. Each burner head includes a fuel nozzle that directs liquid or gaseous fuel into the prechamber. The prechamber is fluidically connected to a combustion chamber via a prechamber nozzle that has a smaller opening than the prechamber. The burner head ignites the fuel air mixture in the prechamber with an ignitor located above or within the prechamber. The flame is initially lit as a diffusion flame in the prechamber. The flame is pushed out of the prechamber into the combustion chamber by an increased air flow rate. The liquid fuel from the nozzle now evaporates in the prechamber and forms a prevaporized flame in the combustion chamber.
    Type: Grant
    Filed: September 1, 2017
    Date of Patent: May 24, 2022
    Assignee: New Power Concepts LLC
    Inventors: Michael G. Norris, Felix Winkler, Christopher C. Langenfeld
  • Patent number: 10369299
    Abstract: An apparatus for determining the volume of fluid dispensed. The apparatus has an acoustic volume sensor that acoustically excites a reference volume and a measurement chamber with a loudspeaker and measures the acoustic response with microphones acoustically coupled to the reference and the measurement chamber. The loudspeaker and sensing microphones are connected to the measurement chamber by separate ports. A detachable dispensing chamber is coupled to the acoustic volume sensor. The volume of the fluid dispensed is determined by a processor based on the acoustic response of the microphones to acoustic excitement by the loudspeaker.
    Type: Grant
    Filed: October 1, 2015
    Date of Patent: August 6, 2019
    Assignee: New Power Concepts LLC
    Inventors: Dean Kamen, Larry B. Gray, Russell H. Beavis, John M. Kerwin, Derek G. Kane
  • Patent number: 10072607
    Abstract: An annular venturi burner assembly and Stirling engine. The annular venturi burner injects fuel into combustion air flowing axially through a port with an annular cross section. The fuel enters the annular cross-section from the outside diameter. The flow of air through the annular section creates suction that draws the fuel through the ports. A venturi bushing directs the flow of fuel to provide improved and more uniform mixing of fuel and air.
    Type: Grant
    Filed: November 25, 2014
    Date of Patent: September 11, 2018
    Assignee: New Power Concepts LLC
    Inventors: Christopher C. Langenfeld, Michael S. Place, Jeremy B. Lund, Prashant Bhat, Michael G. Norris, Andrew A. Schnellinger
  • Patent number: 9828940
    Abstract: A rod seal assembly. The rod seal assembly includes a housing between two spaces configured to receive a reciprocating rod, the reciprocating rod disposed within a first space and a second space, a floating bushing configured to move axially and radially within the housing and disposed coaxially around the reciprocating rod, a rod seal configured to seal the outside diameter of the reciprocating rod relative to an inside surface of the floating bushing, and at least one stationary bushing fixed within the housing that may form a seal with the floating bushing to the axial flow of fluid in the presence of a pressure difference between the two spaces.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: November 28, 2017
    Assignee: New Power Concepts LLC
    Inventors: Christopher Charles Langenfeld, Prashant Bhat
  • Patent number: 9828942
    Abstract: A thermal energy recovery system. The system includes a Stirling engine having a burner thermal energy output. Also, a superheater mechanism for heating the thermal energy output and an expansion engine coupled to a generator. The expansion engine converts the thermal energy output from the burner to mechanical energy output. The generator converts mechanical energy output from the expansion engine to electrical energy output. The expansion engine may also includes vapor output. Some embodiments of the system further include a condenser for condensing the vapor output, a pump for pumping the vapor output and a boiler in fluid communication with the pump. The pump pumps the vapor output to the boiler.
    Type: Grant
    Filed: September 12, 2016
    Date of Patent: November 28, 2017
    Assignee: New Power Concepts LLC
    Inventors: Dean Kamen, Christopher C. Langenfeld
  • Patent number: 9823024
    Abstract: A Stirling cycle machine. The machine includes at least one rocking drive mechanism including a rocking beam having a rocker pivot, at least one cylinder and at least one piston. The piston is housed within a respective cylinder and is capable of substantially linearly reciprocating within the respective cylinder. The drive mechanism includes at least one coupling assembly. Also, a crankcase housing the rocking beam and housing a first portion of the coupling assembly is included. The machine also includes a working space housing the at least one cylinder, the at least one piston and a second portion of the coupling assembly. An airlock is included between the workspace and the crankcase and a seal is included for sealing the workspace from the airlock and crankcase. A burner and burner control system is also included for heating the machine and controlling ignition and combustion in the burner.
    Type: Grant
    Filed: July 1, 2010
    Date of Patent: November 21, 2017
    Assignee: New Power Concepts LLC
    Inventors: Dean Kamen, Christopher C. Langenfeld, Prashant Bhat, Michael G. Norris, Stanley B. Smith, III, Christopher M. Werner, David J. Peretz, Brian H. Yoo, Felix Winkler
  • Patent number: 9822730
    Abstract: A piston rod seal unit. The piston rod seal unit includes a housing, a cylinder gland, and at least one floating rod seal assembly mounted in the cylinder gland, the floating rod seal assembly comprising at least one rod seal mounted onto the floating rod seal assembly.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: November 21, 2017
    Assignee: New Power Concepts, LLC
    Inventors: Dean Kamen, Christopher C. Langenfeld, Prashant Bhat, Michael G. Norris
  • Patent number: 9797340
    Abstract: A Stirling cycle machine. The machine includes at least one rocking drive mechanism which includes: a rocking beam having a rocker pivot, at least one cylinder and at least one piston. The piston is housed within a respective cylinder and is capable of substantially linearly reciprocating within the respective cylinder. Also, the drive mechanism includes at least one coupling assembly having a proximal end and a distal end. The linear motion of the piston is converted to rotary motion of the rocking beam. Also, a crankcase housing the rocking beam and housing a first portion of the coupling assembly is included. The machine also includes a working space housing the at least one cylinder, the at least one piston and a second portion of the coupling assembly. An airlock is included between the workspace and the crankcase and a seal is included for sealing the workspace from the airlock and crankcase.
    Type: Grant
    Filed: June 30, 2014
    Date of Patent: October 24, 2017
    Assignee: New Power Concepts LLC
    Inventors: Dean Kamen, Christopher C. Langenfeld, Prashant Bhat, Michael G. Norris, Stanley B. Smith, III, Christopher M. Werner
  • Patent number: 9797341
    Abstract: An external combustion engine including a burner element, a heater head, a piston cylinder containing a piston, a cooler and a crankcase. The crankcase includes a crankshaft, a piston rod connected to the piston, a drive mechanism for converting the linear motion of the piston rod to rotary motion of the crankshaft and a linear cross-head bearing that is connected rigidly to the piston rod at one end and to the drive mechanism at the other end. Also the external combustion engine includes a piston clearance seal and a piston rod seal unit that has floating rod seals. The piston includes a inner dome to reduce axial heat transfer via radiation and convection.
    Type: Grant
    Filed: March 13, 2015
    Date of Patent: October 24, 2017
    Assignee: New Power Concepts LLC
    Inventors: Christopher C. Langenfeld, Prashant Bhat, Mithun R. Bhat, Dean Kamen
  • Patent number: 9752532
    Abstract: A Stirling cycle machine. The machine includes at least one rocking drive mechanism which includes: a rocking beam having a rocker pivot, at least one cylinder and at least one piston. The piston is housed within a respective cylinder and is capable of substantially linearly reciprocating within the respective cylinder. Also, the drive mechanism includes at least one coupling assembly having a proximal end and a distal end. The proximal end is connected to the piston and the distal end is connected to the rocking beam by an end pivot. The linear motion of the piston is converted to rotary motion of the rocking beam. Also, a crankcase housing the rocking beam and housing a first portion of the coupling assembly is included. A crankshaft coupled to the rocking beam by way of a connecting rod is also included. The rotary motion of the rocking beam is transferred to the crankshaft.
    Type: Grant
    Filed: July 1, 2013
    Date of Patent: September 5, 2017
    Assignee: New Power Concepts LLC
    Inventors: Dean Kamen, Christopher C. Langenfeld, Prashant Bhat, Stanley B. Smith, III
  • Patent number: 9534561
    Abstract: An external combustion engine is disclosed. The external combustion engine includes a working fluid and a burner element, at least one heater head defining a working space, at least one piston cylinder containing a piston, a cooler, a crankcase including a crankshaft for producing an engine output, a rocking beam, a piston rod connected to the piston, a rocking beam driven by the piston rod, and a connecting rod connected at a first end to the rocking beam and at a second end to a crankshaft to convert rotary motion of the rocking beam to rotary motion of the crankshaft. The external combustion engine also includes an airlock space separating the crankcase and the working space for maintaining a pressure differential between the crankcase housing and the working space housing and an airlock pressure regulator connected between the crankcase and one of the airlock space and working space.
    Type: Grant
    Filed: April 16, 2012
    Date of Patent: January 3, 2017
    Assignee: New Power Concepts LLC
    Inventors: Dean Kamen, Christopher C. Langenfeld, Prashant Bhat, Michael G. Norris
  • Patent number: 9441575
    Abstract: A thermal energy recovery system. The system includes a Stirling engine having a burner thermal energy output. Also, a superheater mechanism for heating the thermal energy output and an expansion engine coupled to a generator. The expansion engine converts the thermal energy output from the burner to mechanical energy output. The generator converts mechanical energy output from the expansion engine to electrical energy output. The expansion engine may also includes vapor output. Some embodiments of the system further include a condenser for condensing the vapor output, a pump for pumping the vapor output and a boiler in fluid communication with the pump. The pump pumps the vapor output to the boiler.
    Type: Grant
    Filed: April 24, 2009
    Date of Patent: September 13, 2016
    Assignee: New Power Concepts LLC
    Inventors: Dean Kamen, Christopher C. Langenfeld
  • Patent number: 9151243
    Abstract: An improvement is provided to a pressurized close-cycle machine that has a cold-end pressure vessel and is of the type having a piston undergoing reciprocating linear motion within a cylinder containing a working fluid heated by conduction through a heater head by heat from an external thermal source. The improvement includes a heat exchanger for cooling the working fluid, where the heat exchanger is disposed within the cold-end pressure vessel. The heater head may be directly coupled to the cold-end pressure vessel by welding or other methods. A coolant tube is used to convey coolant through the heat exchanger.
    Type: Grant
    Filed: May 21, 2012
    Date of Patent: October 6, 2015
    Assignee: New Power Concepts LLC
    Inventors: Jonathan Strimling, Clement D. Bouchard, Thomas Q. Gurski, Christopher C. Langenfeld, Michael G. Norris, Ryan K. LaRocque
  • Publication number: 20150047336
    Abstract: A Stirling cycle machine. The machine includes at least one rocking drive mechanism which includes: a rocking beam having a rocker pivot, at least one cylinder and at least one piston. The piston is housed within a respective cylinder and is capable of substantially linearly reciprocating within the respective cylinder. Also, the drive mechanism includes at least one coupling assembly having a proximal end and a distal end. The linear motion of the piston is converted to rotary motion of the rocking beam. Also, a crankcase housing the rocking beam and housing a first portion of the coupling assembly is included. The machine also includes a working space housing the at least one cylinder, the at least one piston and a second portion of the coupling assembly. An airlock is included between the workspace and the crankcase and a seal is included for sealing the workspace from the airlock and crankcase.
    Type: Application
    Filed: June 30, 2014
    Publication date: February 19, 2015
    Applicant: New Power Concepts LLC
    Inventors: Dean Kamen, Christopher C. Langenfeld, Prashant Bhat, Michael G. Norris, Stanley B. Smith, III, Christopher M. Werner
  • Publication number: 20140182282
    Abstract: A piston rod seal unit. The piston rod seal unit includes a housing, a cylinder gland, and at least one floating rod seal assembly mounted in the cylinder gland, the floating rod seal assembly comprising at least one rod seal mounted onto the floating rod seal assembly.
    Type: Application
    Filed: March 15, 2013
    Publication date: July 3, 2014
    Applicant: New Power Concepts LLC
    Inventors: Dean Kamen, Christopher C. Langenfeld, Prashant Bhat, Michael G. Norris
  • Patent number: 8474256
    Abstract: A Stirling cycle machine. The machine includes at least one rocking drive mechanism which includes: a rocking beam having a rocker pivot, at least one cylinder and at least one piston. The piston is housed within a respective cylinder and is capable of substantially linearly reciprocating within the respective cylinder. Also, the drive mechanism includes at least one coupling assembly having a proximal end and a distal end. The proximal end is connected to the piston and the distal end is connected to the rocking beam by an end pivot. The linear motion of the piston is converted to rotary motion of the rocking beam. Also, a crankcase housing the rocking beam and housing a first portion of the coupling assembly is included. A crankshaft coupled to the rocking beam by way of a connecting rod is also included. The rotary motion of the rocking beam is transferred to the crankshaft.
    Type: Grant
    Filed: April 18, 2008
    Date of Patent: July 2, 2013
    Assignee: New Power Concepts LLC
    Inventors: Dean Kamen, Christopher C. Langenfeld, Prashant Bhat, Stanley B. Smith, III
  • Publication number: 20120227403
    Abstract: An improvement is provided to a pressurized close-cycle machine that has a cold-end pressure vessel and is of the type having a piston undergoing reciprocating linear motion within a cylinder containing a working fluid heated by conduction through a heater head by heat from an external thermal source. The improvement includes a heat exchanger for cooling the working fluid, where the heat exchanger is disposed within the cold-end pressure vessel. The heater head may be directly coupled to the cold-end pressure vessel by welding or other methods. A coolant tube is used to convey coolant through the heat exchanger.
    Type: Application
    Filed: May 21, 2012
    Publication date: September 13, 2012
    Applicant: New Power Concepts LLC
    Inventors: Jonathan Strimling, Clement D. Bouchard, Thomas Q. Gurski, Christopher C. Langenfeld, Michael Norris, Ryan Keith LaRocque
  • Publication number: 20110168467
    Abstract: A personal vehicle for transporting a user over a surface including an external combustion engine. The vehicle includes a generator for converting the mechanical energy produced by the external combustion engine to electrical energy and an energy storage device for storing power provided by the generator and for providing power to the external combustion engine and the assembly. The personal vehicle includes a controller for controlling a total power load placed on the external combustion engine providing short term regulation of external combustion engine parameters.
    Type: Application
    Filed: August 18, 2008
    Publication date: July 14, 2011
    Applicant: New Power Concepts LLC
    Inventors: Dean L. Kamen, Christopher C. Langenfeld, Michael Norris, Jason Michael Sachs
  • Publication number: 20110011078
    Abstract: A Stirling cycle machine. The machine includes at least one rocking drive mechanism which includes: a rocking beam having a rocker pivot, at least one cylinder and at least one piston. The piston is housed within a respective cylinder and is capable of substantially linearly reciprocating within the respective cylinder. Also, the drive mechanism includes at least one coupling assembly having a proximal end and a distal end. The linear motion of the piston is converted to rotary motion of the rocking beam. Also, a crankcase housing the rocking beam and housing a first portion of the coupling assembly is included. The machine also includes a working space housing the at least one cylinder, the at least one piston and a second portion of the coupling assembly. An airlock is included between the workspace and the crankcase and a seal is included for sealing the workspace from the airlock and crankcase.
    Type: Application
    Filed: July 1, 2010
    Publication date: January 20, 2011
    Applicant: New Power Concepts LLC
    Inventors: Dean Kamen, Christopher C. Langenfeld, Prashant Bhat, Michael G. Norris, Stanley B. Smith, III, Christopher M. Werner, David J. Peretz, Brian H. Yoo, Felix Winkler