Patents by Inventor David Genevois
David Genevois 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: 11852144Abstract: The present disclosure relates to a scroll compressor and its lubricating oil supply system.Type: GrantFiled: August 31, 2022Date of Patent: December 26, 2023Assignee: Danfoss (Tianjin) Ltd.Inventors: Qian Hu, Gang Yao, Xueyou Zhou, Alain Picavet, Arnaud Daussin, Rémi Bou Dargham, David Genevois
-
Publication number: 20230407869Abstract: The counterweight (26) is manufactured by an additive manufacturing process and includes a mounting portion (28) having a first density and a mass portion (29) having a second density, the mass portion (29) being formed radially outward of the mounting portion (28), wherein the first density of the mounting portion (28) and the second density of the mass portion (29) are different from each other, and wherein the mass portion (29) includes at least a first segment (29.1) having a first segment density and a second segment (29.2) having a second segment density which is different from the first segment density.Type: ApplicationFiled: November 24, 2021Publication date: December 21, 2023Inventors: Arnaud DAUSSIN, David GENEVOIS, Remi BOU DARGHAM
-
Patent number: 11841013Abstract: The scroll compressor includes a fixed scroll (8) having a fixed end plate (11) and a fixed spiral wrap (12) extending from the fixed end plate (11); an orbiting scroll (9) having an orbiting base plate (14) and an orbiting spiral wrap (15) extending from a first face of the orbiting base plate (14), the orbiting spiral wrap (15) of the orbiting scroll (9) meshing with the fixed spiral wrap (12) of the fixed scroll (8) to form compression chambers (18), the orbiting base plate (14) having a flange portion (16) radially extending on at least part of the circumference of the orbiting base plate (14) and beyond an outer wall surface of the orbiting spiral wrap (15); and a first and a second axial stabilizing arrangement (29, 31) configured to axially stabilize the orbiting scroll (9), the first axial stabilizing arrangement (29) being formed between the flange portion (16) of the orbiting base plate (14) and the fixed scroll (8), and the second axial stabilizing arrangement (31) being formed between a portion ofType: GrantFiled: November 2, 2020Date of Patent: December 12, 2023Assignee: Danfoss Commercial CompressorsInventors: Remi Bou Dargham, Arnaud Daussin, David Genevois
-
Publication number: 20230103461Abstract: The present disclosure relates to a scroll compressor and its lubricating oil supply system.Type: ApplicationFiled: August 31, 2022Publication date: April 6, 2023Inventors: Qian HU, Gang YAO, Xueyou ZHOU, Alain PICAVET, Arnaud DAUSSIN, Rémi Bou DARGHAM, David GENEVOIS
-
Patent number: 11519408Abstract: The scroll compressor (1) includes a fixed scroll (7); an orbiting scroll (8); a support arrangement (5) including a thrust bearing surface (9) on which is slidably mounted the orbiting scroll (8); a rotation preventing device configured to prevent rotation of the orbiting scroll (8) with respect to the fixed scroll (7), the rotation preventing device including a plurality of orbital discs (28) respectively rotatably mounted in circular receiving cavities (29) provided on the support arrangement (5), each orbital disc (28) being provided with an outer circumferential bearing surface (31) configured to cooperate with an inner circumferential bearing surface (32) provided on the respective circular receiving cavity (29); and a lubrication system configured to lubricate the inner and outer circumferential bearing surfaces (32, 31) with oil supplied from an oil sump (36), the lubrication system including a plurality of oil reservoirs (43) each arranged in a bottom surface of a respective circular receiving cavityType: GrantFiled: November 15, 2021Date of Patent: December 6, 2022Assignee: Danfoss Commercial CompressorsInventors: Arnaud Daussin, David Genevois, Remi Bou Dargham
-
Publication number: 20220372975Abstract: The scroll compressor includes a fixed scroll (8) having a fixed end plate (11) and a fixed spiral wrap (12) extending from the fixed end plate (11); an orbiting scroll (9) having an orbiting base plate (14) and an orbiting spiral wrap (15) extending from a first face of the orbiting base plate (14), the orbiting spiral wrap (15) of the orbiting scroll (9) meshing with the fixed spiral wrap (12) of the fixed scroll (8) to form compression chambers (18), the orbiting base plate (14) having a flange portion (16) radially extending on at least part of the circumference of the orbiting base plate (14) and beyond an outer wall surface of the orbiting spiral wrap (15); and a first and a second axial stabilizing arrangement (29, 31) configured to axially stabilize the orbiting scroll (9), the first axial stabilizing arrangement (29) being formed between the flange portion (16) of the orbiting base plate (14) and the fixed scroll (8), and the second axial stabilizing arrangement (31) being formed between a portion ofType: ApplicationFiled: November 2, 2020Publication date: November 24, 2022Inventors: Remi BOU DARGHAM, Arnaud DAUSSIN, David GENEVOIS
-
Publication number: 20220163036Abstract: The scroll compressor (1) includes a fixed scroll (7); an orbiting scroll (8); a support arrangement (5) including a thrust bearing surface (9) on which is slidably mounted the orbiting scroll (8); a rotation preventing device configured to prevent rotation of the orbiting scroll (8) with respect to the fixed scroll (7), the rotation preventing device including a plurality of orbital discs (28) respectively rotatably mounted in circular receiving cavities (29) provided on the support arrangement (5), each orbital disc (28) being provided with an outer circumferential bearing surface (31) configured to cooperate with an inner circumferential bearing surface (32) provided on the respective circular receiving cavity (29); and a lubrication system configured to lubricate the inner and outer circumferential bearing surfaces (32, 31) with oil supplied from an oil sump (36), the lubrication system including a plurality of oil reservoirs (43) each arranged in a bottom surface of a respective circular receiving cavityType: ApplicationFiled: November 15, 2021Publication date: May 26, 2022Inventors: Arnaud Daussin, David Genevois, Remi Bou Dargham
-
Publication number: 20220074412Abstract: The scroll compressor (2) including a hermetic enclosure (3), a compression unit (11) configured to compress refrigerant, and an electric motor (16) configured to drive the compression unit (11) via a drive shaft (15), the hermetic enclosure (3) including a midshell (4), an upper cap (5) and a baseplate (6), the baseplate (6) including a mounting base (24) having a plate shape and including a central portion, and a cylindrical rim surrounding the central portion and extending upwardly, the cylindrical rim (28) being secured to the mounting base (24) by a double-welded T-joint (29), the double-welded T-joint (29) including an inner welding seam connecting an inner surface of the cylindrical rim (28) to the mounting base (24), and an outer welding seam connecting an outer surface of the cylindrical rim (28) to the mounting base (24).Type: ApplicationFiled: January 27, 2020Publication date: March 10, 2022Inventors: David Genevois, Remi Bou Dargham, Cyril Montes, Arnaud Daussin, Dominique Gross
-
Patent number: 11225967Abstract: The scroll compressor (2) comprises a hermetic enclosure (3) comprising an outer shell (4); a compression unit (11) arranged within the hermetic enclosure (3); an electric motor (21) configured to drive the compression unit (11), the electric motor (21) including a rotor (22) and a stator (23); and an inner shell (26) in which the electric motor (21) is arranged. A baffle (34) is arranged inside the inner shell (26) at a stator end winding (25) of the electric motor (21), the baffle (34) comprising deflecting means configured to deflect at least a part of a main refrigerant flow, flowing inside the inner shell (26), towards said stator end winding (25).Type: GrantFiled: May 1, 2019Date of Patent: January 18, 2022Assignee: Danfoss Commercial CompressorsInventors: Alain Laville, David Genevois, Julien Lavy
-
Patent number: 10890185Abstract: The scroll compressor comprises a fixed scroll element comprising a fixed end plate (13) and a fixed spiral wrap (14); an orbiting scroll element comprising an orbiting end plate and an orbiting spiral wrap (16), the fixed and orbiting spiral wraps (14, 16) being intermeshed with each other to define pairs of compression pockets, a radial inner pair of compression pockets comprising a direct pocket (17.1) and an indirect pocket (17.2); a central main discharge port (18) formed in the fixed end plate (13) and configured to communicate the direct pocket (17.1) with a discharge pressure volume; and an auxiliary discharge port (26) formed in the fixed end plate (13) at a position close to an outer wall side (14.2) of the fixed spiral wrap (14) and adjacent the inner end (14.4) of the fixed spiral wrap (14). The auxiliary discharge port (26), during orbiting movement of the orbiting scroll element (12), is at least partially uncovered by the orbiting spiral wrap (16) to communicate the indirect pocket (17.Type: GrantFiled: August 22, 2018Date of Patent: January 12, 2021Assignee: DANFOSS COMMERCIAL COMPRESSORSInventors: Sebastien Denis, David Genevois, Julien Lavy
-
Patent number: 10753360Abstract: The scroll compression device includes a first scroll element (11) having a first base plate (13) and a first spiral wrap (14); a second scroll element (12) having a second base plate (15) and a second spiral wrap (16), one of the first and second scroll elements (11, 12) being configured to perform an orbiting movement in relation to the other one of the first and second scroll elements, the first and second scroll elements (11, 12) intermeshing with each other and delimiting compression chambers (17); and a sealing device (28) arranged in an end face (19) of the first spiral wrap (14) and having a sealing surface configured to cooperate with the second base plate (15).Type: GrantFiled: February 15, 2017Date of Patent: August 25, 2020Assignee: Danfoss Commercial CompressorsInventors: Remi Bou Dargham, David Genevois, Dominique Gross
-
Patent number: 10746174Abstract: The scroll compressor (1) includes a fixed scroll (7); an orbiting scroll (8); a drive shaft (16); a support arrangement (5) including a thrust bearing surface (9) on which is slidably mounted the orbiting scroll (8); a rotation preventing device configured to prevent rotation of the orbiting scroll (8) with respect to the fixed scroll (7), the rotation preventing device including orbital discs (28) respectively arranged in circular receiving holes (29) provided on the support arrangement (5), each orbital disc (28) being provided with an outer circumferential bearing surface (31) cooperating with an inner circumferential bearing surface (32) of the respective circular receiving hole (29); and a lubrication system configured to lubricate the inner and outer circumferential bearing surfaces (32, 31) with oil supplied from an oil sump (50), the lubrication system including lubrication passages (41) formed within the support arrangement (5), each lubrication passage (41) including an oil outlet aperture (41.Type: GrantFiled: December 22, 2017Date of Patent: August 18, 2020Assignee: Danfoss Commercial CompressorsInventors: Arnaud Daussin, Sebastien Denis, David Genevois, Remi Bou Dargham
-
Publication number: 20190383286Abstract: The scroll compressor (2) comprises a hermetic enclosure (3) comprising an outer shell (4); a compression unit (11) arranged within the hermetic enclosure (3); an electric motor (21) configured to drive the compression unit (11), the electric motor (21) including a rotor (22) and a stator (23); and an inner shell (26) in which the electric motor (21) is arranged. A baffle (34) is arranged inside the inner shell (26) at a stator end winding (25) of the electric motor (21), the baffle (34) comprising deflecting means configured to deflect at least a part of a main refrigerant flow, flowing inside the inner shell (26), towards said stator end winding (25).Type: ApplicationFiled: May 1, 2019Publication date: December 19, 2019Inventors: Alain Laville, David Genevois, Julien Lavy
-
Publication number: 20190323502Abstract: The scroll compression device includes a first scroll element (11) having a first base plate (13) and a first spiral wrap (14); a second scroll element (12) having a second base plate (15) and a second spiral wrap (16), one of the first and second scroll elements (11, 12) being configured to perform an orbiting movement in relation to the other one of the first and second scroll elements, the first and second scroll elements (11, 12) intermeshing with each other and delimiting compression chambers (17); and a sealing device (28) arranged in an end face (19) of the first spiral wrap (14) and having a sealing surface configured to cooperate with the second base plate (15).Type: ApplicationFiled: February 15, 2017Publication date: October 24, 2019Inventors: Remi Bou Dargham, David Genevois, Dominique Gross
-
Patent number: 10330093Abstract: A compressor system includes: at least one variable-speed compressor, at least one fixed-speed compressor, a main suction pipe and a main discharge pipe; respective suction pipes of the variable-speed compressor and the fixed-speed compressor are connected to the main suction pipe in parallel, and respective discharge pipes of the variable-speed compressor and the fixed-speed compressor are connected to the main discharge pipe in parallel. The main suction pipe is configured with an oil-gas separation fitting structure, and the oil-gas separation fitting structure is designed to enable most oil of oil-gas mixture from the main suction pipe to move into the variable-speed compressor, and to make the variable-speed compressor stay in an oil-rich state.Type: GrantFiled: July 13, 2016Date of Patent: June 25, 2019Assignee: Danfoss (Tianjin) Ltd.Inventors: Liang Fan, David Genevois, Shuguang Zhang, Peng Liu, Ying Dong, Kongkham Lovan
-
Publication number: 20190063432Abstract: The scroll compressor comprises a fixed scroll element comprising a fixed end plate (13) and a fixed spiral wrap (14); an orbiting scroll element comprising an orbiting end plate and an orbiting spiral wrap (16), the fixed and orbiting spiral wraps (14, 16) being intermeshed with each other to define pairs of compression pockets, a radial inner pair of compression pockets comprising a direct pocket (17.1) and an indirect pocket (17.2); a central main discharge port (18) formed in the fixed end plate (13) and configured to communicate the direct pocket (17.1) with a discharge pressure volume; and an auxiliary discharge port (26) formed in the fixed end plate (13) at a position close to an outer wall side (14.2) of the fixed spiral wrap (14) and adjacent the inner end (14.4) of the fixed spiral wrap (14). The auxiliary discharge port (26), during orbiting movement of the orbiting scroll element (12), is at least partially uncovered by the orbiting spiral wrap (16) to communicate the indirect pocket (17.Type: ApplicationFiled: August 22, 2018Publication date: February 28, 2019Inventors: Sebastien Denis, David Genevois, Julien Lavy
-
Publication number: 20180216616Abstract: The scroll compressor (1) includes a fixed scroll (7); an orbiting scroll (8); a drive shaft (16); a support arrangement (5) including a thrust bearing surface (9) on which is slidably mounted the orbiting scroll (8); a rotation preventing device configured to prevent rotation of the orbiting scroll (8) with respect to the fixed scroll (7), the rotation preventing device including orbital discs (28) respectively arranged in circular receiving holes (29) provided on the support arrangement (5), each orbital disc (28) being provided with an outer circumferential bearing surface (31) cooperating with an inner circumferential bearing surface (32) of the respective circular receiving hole (29); and a lubrication system configured to lubricate the inner and outer circumferential bearing surfaces (32, 31) with oil supplied from an oil sump (50), the lubrication system including lubrication passages (41) formed within the support arrangement (5), each lubrication passage (41) including an oil outlet aperture (41.Type: ApplicationFiled: December 22, 2017Publication date: August 2, 2018Inventors: Arnaud Daussin, Sebastien Denis, David Genevois, Remi Bou Dargham
-
Publication number: 20170016438Abstract: A compressor system includes: at least one variable-speed compressor, at least one fixed-speed compressor, a main suction pipe and a main discharge pipe; respective suction pipes of the variable-speed compressor and the fixed-speed compressor are connected to the main suction pipe in parallel, and respective discharge pipes of the variable-speed compressor and the fixed-speed compressor are connected to the main discharge pipe in parallel. The main suction pipe is configured with an oil-gas separation fitting structure, and the oil-gas separation fitting structure is designed to enable most oil of oil-gas mixture from the main suction pipe to move into the variable-speed compressor, and to make the variable-speed compressor stay in an oil-rich state.Type: ApplicationFiled: July 13, 2016Publication date: January 19, 2017Inventors: Liang Fan, David Genevois, Shuguang Zhang, Peng Liu, Ying Dong, Kongkham Lovan
-
Patent number: 9273678Abstract: The compression device according to the invention includes first and second compressors mounted in parallel and an oil level equalization line arranged to fluidly connect the oil sumps of the first and second compressors. The oil level equalization line includes at least one oil level regulating portion positioned near one of the first and second compressors and including a dam wall extending transversely to the longitudinal direction of said oil level regulating portion and a flow opening arranged such that, when the oil level in the oil sump of the compressor situated near the oil level regulating portion extends above the upper level of the dam wall, oil flows through the flow opening toward the other compressor.Type: GrantFiled: June 12, 2013Date of Patent: March 1, 2016Assignee: DANFOSS COMMERCIAL COMPRESSORSInventors: Patrice Bonnefoi, Kongkham Lo Van, Alexandre Landre, David Genevois
-
Patent number: 9080567Abstract: The compressor includes a sealed enclosure containing a compression stage, an electric motor having a stator provided with a first and second end windings, an intermediate casing surrounding the stator so as to define an annular outer volume with the sealed enclosure, connecting means arranged to fluidly connect the compression stage and a distal chamber defined by the intermediate casing and the electric motor and comprising the second end winding, and a refrigerant suction inlet emerging in the annular outer volume. The connecting means include at least one refrigerant circulation duct situated outside the intermediate casing, and at least one distal window formed on the intermediate casing and emerging on the one hand in the at least one refrigerant circulation duct and on the other hand in the distal chamber near the second end winding of the stator.Type: GrantFiled: April 16, 2013Date of Patent: July 14, 2015Assignee: DANFOSS COMMERCIAL COMPRESSORSInventors: David Genevois, Yves Rosson, Philippe Dugast