Patents by Inventor Jean-Marc Joffroy

Jean-Marc Joffroy has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11754061
    Abstract: Hybrid thermodynamic compressor (8) for compressing a working fluid, the compressor comprising a volumetric cylinder (1) and a thermal cylinder (2) connected to one another mechanically by a connecting rod system (5) and pneumatically by a connecting circuit (12) optionally with a valve (4), a reversible electric machine (6), the volumetric cylinder comprising a first piston (81) that separates a first chamber (Ch1) from a second chamber (Ch2), the thermal cylinder comprising a second piston (82) which separates a third chamber (Ch3) from a fourth chamber (Ch4), which can be brought into thermal contact with a heat source (21) to thereby generate a cycled movement in the thermal cylinder, and concerning the connecting rod system (5), the first and second pistons are connected to a rotor (52) by first and second respective connecting rods (91,92), with a predetermined angular offset (?d), the volumetric cylinder being equipped with non-return valves (61,62), the power produced in the thermal cylinder being tra
    Type: Grant
    Filed: March 6, 2020
    Date of Patent: September 12, 2023
    Assignee: BOOSTHEAT
    Inventor: Jean-Marc Joffroy
  • Publication number: 20220178359
    Abstract: Hybrid thermodynamic compressor (8) for compressing a working fluid, the compressor comprising a volumetric cylinder (1) and a thermal cylinder (2) connected to one another mechanically by a connecting rod system (5) and pneumatically by a connecting circuit (12) optionally with a valve (4), a reversible electric machine (6), the volumetric cylinder comprising a first piston (81) that separates a first chamber (Ch1) from a second chamber (Ch2), the thermal cylinder comprising a second piston (82) which separates a third chamber (Ch3) from a fourth chamber (Ch4), which can be brought into thermal contact with a heat source (21) to thereby generate a cycled movement in the thermal cylinder, and concerning the connecting rod system (5), the first and second pistons are connected to a rotor (52) by first and second respective connecting rods (91,92), with a predetermined angular offset (?d), the volumetric cylinder being equipped with non-return valves (61,62), the power produced in the thermal cylinder being tra
    Type: Application
    Filed: March 6, 2020
    Publication date: June 9, 2022
    Inventor: Jean-Marc JOFFROY
  • Publication number: 20210108804
    Abstract: A thermodynamic boiler for delivering heat into at least one heating circuit, includes a compressor forming the compression function of a heat pump type loop using a compressible fluid of type R744, and includes a fuel burner which delivers heat into the compressible fluid.
    Type: Application
    Filed: April 12, 2018
    Publication date: April 15, 2021
    Inventor: Jean-Marc JOFFROY
  • Patent number: 10704493
    Abstract: A device for compressing a gaseous fluid includes a first chamber thermally coupled with a hot source, a second chamber thermally coupled with a cold source, a movable piston moved by a rod, and a regenerating exchanger establishing fluid communication between the first and second chambers. The rod is arranged in a cylindrical socket and guided in axial translation by a linear guiding system such as to guide the piston without contact relative to the sleeve. A sealing ring attached to the cylindrical socket surrounds the rod with a very low radial clearance, in order to limit the passage of the gaseous fluid along the mobile rod. Also disclosed is an integral cold casing having machined boreholes, a thermal screen in the hot casing, and a self-driving system with a resilient return means.
    Type: Grant
    Filed: July 18, 2018
    Date of Patent: July 7, 2020
    Assignee: BOOSTHEAT
    Inventors: Jean-Marc Joffroy, Martin Bidar, Luc Dando
  • Patent number: 10539124
    Abstract: A thermodynamic boiler for exchanging (providing or drawing) heat with a heating circuit includes a thermal compressor. The thermal compressor acts on a compressible fluid and includes at least one compression stage, with an alternating bi-directional piston separating a first chamber and a second chamber, and a first fuel burner forming a heat source coupled to the first chamber. The thermal compressor uses the heating circuit as a cold source coupled to the second chamber and forms the compression function of a reversible heat pump type loop.
    Type: Grant
    Filed: October 20, 2016
    Date of Patent: January 21, 2020
    Assignee: BOOSTHEAT
    Inventor: Jean-Marc Joffroy
  • Publication number: 20190055932
    Abstract: A thermodynamic boiler for exchanging (providing or drawing) heat with a heating circuit includes a thermal compressor. The thermal compressor acts on a compressible fluid and includes at least one compression stage, with an alternating bi-directional piston separating a first chamber and a second chamber, and a first fuel burner forming a heat source coupled to the first chamber.
    Type: Application
    Filed: October 20, 2016
    Publication date: February 21, 2019
    Inventor: Jean-Marc JOFFROY
  • Publication number: 20180328312
    Abstract: A device for compressing a gaseous fluid includes a first chamber thermally coupled with a hot source, a second chamber thermally coupled with a cold source, a movable piston moved by a rod, and a regenerating exchanger establishing fluid communication between the first and second chambers. The rod is arranged in a cylindrical socket and guided in axial translation by a linear guiding system such as to guide the piston without contact relative to the sleeve. A sealing ring attached to the cylindrical socket surrounds the rod with a very low radial clearance, in order to limit the passage of the gaseous fluid along the mobile rod. Also disclosed is an integral cold casing having machined boreholes, a thermal screen in the hot casing, and a self-driving system with a resilient return means.
    Type: Application
    Filed: July 18, 2018
    Publication date: November 15, 2018
    Inventors: Jean-Marc JOFFROY, Martin BIDAR, Luc DANDO
  • Patent number: 10054078
    Abstract: A device for compressing a gaseous fluid includes a first chamber thermally coupled with a hot source, a second chamber thermally coupled with a cold source, a movable piston moved by a rod, and a regenerating exchanger establishing fluid communication between the first and second chambers. The rod is arranged in a cylindrical socket and guided in axial translation by a linear guiding system such as to guide the piston without contact relative to the sleeve. A sealing ring attached to the cylindrical socket surrounds the rod with a very low radial clearance, in order to limit the passage of the gaseous fluid along the mobile rod. Also disclosed is an integral cold casing having machined boreholes, a thermal screen in the hot casing, and a self-driving system with a resilient return means.
    Type: Grant
    Filed: June 16, 2014
    Date of Patent: August 21, 2018
    Assignee: Boostheat
    Inventors: Jean-Marc Joffroy, Martin Bidar, Luc Dando
  • Publication number: 20160146152
    Abstract: A device for compressing a gaseous fluid includes a first chamber thermally coupled with a hot source, a second chamber thermally coupled with a cold source, a movable piston moved by a rod, and a regenerating exchanger establishing fluid communication between the first and second chambers. The rod is arranged in a cylindrical socket and guided in axial translation by a linear guiding system such as to guide the piston without contact relative to the sleeve. A sealing ring attached to the cylindrical socket surrounds the rod with a very low radial clearance, in order to limit the passage of the gaseous fluid along the mobile rod. Also disclosed is an integral cold casing having machined boreholes, a thermal screen in the hot casing, and a self-driving system with a resilient return means.
    Type: Application
    Filed: June 16, 2014
    Publication date: May 26, 2016
    Inventors: Jean-Marc JOFFROY, Martin BIDAR, Luc DANDO
  • Patent number: 9273681
    Abstract: A gaseous fluid compression device includes: a first enclosure within which there is a movable first piston delimiting a first chamber and a second chamber; a second enclosure within which there is a movable second piston delimiting a third chamber and a fourth; a first exchange circuit connecting the first chamber and the fourth chamber, with a heat exchanger linked to a heat sink; a second exchange circuit connecting the second chamber and the third chamber, with a second heat exchanger linked to a heat source; and a transfer passage connecting the first chamber and the second chamber with an anti-backflow device. A back-and-forth movement of the interconnected pistons results in a compression of the gaseous fluid in the direction of the outlet.
    Type: Grant
    Filed: February 8, 2012
    Date of Patent: March 1, 2016
    Assignee: BOOSTHEAT
    Inventor: Jean-Marc Joffroy
  • Patent number: 9273630
    Abstract: A modular device for compressing gaseous fluid includes a first stage with a first hot chamber, a second cold chamber, a piston assembly separating the first and second chambers inside a main enclosure, a regenerative heat exchanger establishing a fluid communication between the first and second chambers by at least a first communication line, and optionally third and fourth chambers separated by a fixed divider separating the third and fourth chambers placed in communication by a second communication line. It thus includes a compressor with one, two, or four stages based on a modular architecture with common components.
    Type: Grant
    Filed: July 26, 2013
    Date of Patent: March 1, 2016
    Assignee: BOOSTHEAT
    Inventor: Jean-Marc Joffroy
  • Publication number: 20150211440
    Abstract: A modular device for compressing gaseous fluid includes a first stage with a first hot chamber, a second cold chamber, a piston assembly separating the first and second chambers inside a main enclosure, a regenerative heat exchanger establishing a fluid communication between the first and second chambers by at least a first communication line, and optionally third and fourth chambers separated by a fixed divider separating the third and fourth chambers placed in communication by a second communication line. It thus includes a compressor with one, two, or four stages based on a modular architecture with common components.
    Type: Application
    Filed: July 26, 2013
    Publication date: July 30, 2015
    Inventor: Jean-Marc Joffroy
  • Publication number: 20130323102
    Abstract: A gaseous fluid compression device includes: a first enclosure within which there is a movable first piston delimiting a first chamber and a second chamber; a second enclosure within which there is a movable second piston delimiting a third chamber and a fourth; a first exchange circuit connecting the first chamber and the fourth chamber, with a heat exchanger linked to a heat sink; a second exchange circuit connecting the second chamber and the third chamber, with a second heat exchanger linked to a heat source; and a transfer passage connecting the first chamber and the second chamber with an anti-backflow device. A back-and-forth movement of the interconnected pistons results in a compression of the gaseous fluid in the direction of the outlet.
    Type: Application
    Filed: February 8, 2012
    Publication date: December 5, 2013
    Applicant: BOOSTHEAT
    Inventor: Jean-Marc Joffroy