Patents by Inventor Bernd Heinbokel
Bernd Heinbokel 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).
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Patent number: 9494345Abstract: The invention relates to a refrigeration circuit having a mono- or multi-component refrigerant circulating therein, said refrigeration circuit comprising, in the direction of flow, a condenser, a collecting container, a relief device connected upstream of an evaporator, an evaporator and a compressor unit with single-stage compression. According to the invention, there is an intermediate relief device arranged between the condenser and the collecting container. Furthermore, there is disclosed a method of operating a refrigeration device in which pressure relief of the refrigerant to an (intermediate) pressure of 5 to 40 bar is effected in the intermediate relief device arranged between the condenser and the collecting container.Type: GrantFiled: September 29, 2014Date of Patent: November 15, 2016Assignee: Carrier CorporationInventors: Bernd Heinbokel, Andreas Gernemann, Uwe Schierhorn
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Patent number: 9476614Abstract: The invention relates to a refrigeration circuit having a mono- or multi-component refrigerant circulating therein, said refrigeration circuit comprising, in the direction of flow, a condenser, a collecting container, a relief device connected upstream of an evaporator, an evaporator and a compressor unit with single-stage compression. According to the invention, there is an intermediate relief device arranged between the condenser and the collecting container. Furthermore, there is disclosed a method of operating a refrigeration device in which pressure relief of the refrigerant to an (intermediate) pressure of 5 to 40 bar is effected in the intermediate relief device arranged between the condenser and the collecting container.Type: GrantFiled: September 29, 2014Date of Patent: October 25, 2016Assignee: Carrier CorporationInventors: Bernd Heinbokel, Andreas Gernemann, Uwe Schierhorn
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Publication number: 20150013358Abstract: The invention relates to a refrigeration circuit having a mono- or multi-component refrigerant circulating therein, said refrigeration circuit comprising, in the direction of flow, a condenser, a collecting container, a relief device connected upstream of an evaporator, an evaporator and a compressor unit with single-stage compression. According to the invention, there is an intermediate relief device (a) arranged between the condenser (1) and the collecting container (3). Furthermore, there is disclosed a method of operating a refrigeration device in which pressure relief of the refrigerant to an (intermediate) pressure of 5 to 40 bar is effected in the intermediate relief device (a) arranged between the condenser (1) and the collecting container (3).Type: ApplicationFiled: September 29, 2014Publication date: January 15, 2015Applicant: CARRIER CORPORATIONInventors: Bernd Heinbokel, Andreas Gernemann, Uwe Schierhorn
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Publication number: 20150013359Abstract: The invention relates to a refrigeration circuit having a mono- or multi-component refrigerant circulating therein, said refrigeration circuit comprising, in the direction of flow, a condenser, a collecting container, a relief device connected upstream of an evaporator, an evaporator and a compressor unit with single-stage compression. According to the invention, there is an intermediate relief device (a) arranged between the condenser (1) and the collecting container (3). Furthermore, there is disclosed a method of operating a refrigeration device in which pressure relief of the refrigerant to an (intermediate) pressure of 5 to 40 bar is effected in the intermediate relief device (a) arranged between the condenser (1) and the collecting container (3).Type: ApplicationFiled: September 29, 2014Publication date: January 15, 2015Applicant: Carrier CorporationInventors: Bernd Heinbokel, Andreas Gernemann, Uwe Schierhorn
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Patent number: 8893520Abstract: A refrigeration device containing CO2 a refrigerant to be circulated, including a compressor, a heat-rejecting heat exchanger, an expansion, and an evaporator which are connected to one another. The refrigeration device includes a first portion and a second portion, the second portion having a higher temperature relative to the first portion when the refrigeration device is in operation. A heat-reclaim heat exchanger is provided at a given location in the second portion, provided to transfer heat to a fluid for further use as a source of heated fluid.Type: GrantFiled: December 17, 2010Date of Patent: November 25, 2014Assignee: Carrier CorporationInventors: Bernd Heinbokel, Siegfried Haaf, Neelkanth S. Gupte, Ulf J. Jonsson, Tobias H. Sienel
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Patent number: 8844303Abstract: The invention relates to a refrigeration circuit having a mono- or multi-component refrigerant circulating therein, said refrigeration circuit comprising, in the direction of flow, a condenser, a collecting container, a relief device connected upstream of an evaporator, an evaporator and a compressor unit with single-stage compression. According to the invention, there is an intermediate relief device (a) arranged between the condenser (1) and the collecting container (3). Furthermore, there is disclosed a method of operating a refrigeration device in which pressure relief of the refrigerant to an (intermediate) pressure of 5 to 40 bar is effected in the intermediate relief device (a) arranged between the condenser (1) and the collecting container (3).Type: GrantFiled: September 8, 2011Date of Patent: September 30, 2014Assignee: Carrier CorporationInventors: Bernd Heinbokel, Andreas Gernemann, Uwe Schierhorn
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Patent number: 8734118Abstract: A set of piston compressors (2, 4, 6, 8) for use in a refrigeration system comprises a fluid connection (10) between the crank cases of the piston compressors (2, 4, 6, 8) for allowing oil compensation between said piston compressors (2, 4, 6, 8); and a control unit (12) which in operation monitors the running time of each piston compressor (2, 4, 6, 8) and, in case all piston compressors (2, 4, 6, 8) are running, subsequently interrupts the operation of a respective piston compressor (2, 4, 6, 8) for a predetermined period of time for oil compensation if its running time reaches a predetermined maximum running time.Type: GrantFiled: October 18, 2007Date of Patent: May 27, 2014Assignee: United Technologies CorporationInventors: Bernd Heinbokel, Heinz Gassen, Kai Munker
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Patent number: 8316654Abstract: A Refrigerating system (2) comprises a refrigerating circuit (4) having, in flowing direction, a compressor (8), a gas cooler (10), a first expansion device (12), an intermediate pressure container (14), a second expansion device (16), an evaporator (18) and refrigerant conduits (22, 24, 26, 28, 30, 32) circulating a refrigerant therethrough. The first expansion device (12) expands the refrigerant to an intermediate pressure level. A first refrigerant conduit (22) of the refrigerant conduits (22, 24, 26, 28, 30, 32) connects the compressor (8) and the gas cooler (10), and a second refrigerant conduit (24) of the refrigerant conduits (22, 24, 26, 28, 30, 32) connects the gas cooler (10) and the first expansion device (12), the first refrigerant conduit (22), the gas cooler (10), and the second refrigerant conduit (24) forming a transcritical portion of the refrigerating circuit (4).Type: GrantFiled: November 13, 2007Date of Patent: November 27, 2012Assignee: Carrier CorporationInventors: Bernd Heinbokel, Siegfried Haaf
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Patent number: 8186171Abstract: A method is provided for controlling an intermittently supercritically operating refrigeration circuit. A control valve (12) is controlled: (a) in the subcritical mode, so that a predetermined “subcritical pressure” ensuring a predetermined sub-cooling of the liquid refrigerant at the outlet (14) of a heat-rejecting heat exchanger (10) is maintained; (b) in the supercritical mode, so that a predetermined “supercritical pressure”, which is optimized for optimum efficiency, of the supercritical refrigerant at the outlet (14) of the heat-rejecting heat exchanger (10) is maintained; and (c) in a border mode in a border region next to the critical point, dependent on a “continuity pressure” which is determined on the basis of the predetermined “subcritical pressure” and the predetermined “supercritical pressure” of steps (a) and (b).Type: GrantFiled: February 18, 2005Date of Patent: May 29, 2012Assignee: Carrier CorporationInventor: Bernd Heinbokel
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Patent number: 8113008Abstract: The invention relates to a refrigeration circuit having a mono- or multi-component refrigerant circulating therein, said refrigeration circuit comprising, in the direction of flow, a condenser, a collecting container, a relief device connected upstream of an evaporator, an evaporator and a compressor unit with single-stage compression. According to the invention, there is an intermediate relief device (a) arranged between the condenser (1) and the collecting container (3). Furthermore, there is disclosed a method of operating a refrigeration device in which pressure relief of the refrigerant to an (intermediate) pressure of 5 to 40 bar is effected in the intermediate relief device (a) arranged between the condenser (1) and the collecting container (3).Type: GrantFiled: July 29, 2005Date of Patent: February 14, 2012Assignee: Carrier CorporationInventors: Bernd Heinbokel, Andreas Gernemann, Uwe Schierhorn
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Publication number: 20110314846Abstract: The invention relates to a refrigeration circuit having a mono- or multi-component refrigerant circulating therein, said refrigeration circuit comprising, in the direction of flow, a condenser, a collecting container, a relief device connected upstream of an evaporator, an evaporator and a compressor unit with single-stage compression. According to the invention, there is an intermediate relief device (a) arranged between the condenser (1) and the collecting container (3). Furthermore, there is disclosed a method of operating a refrigeration device in which pressure relief of the refrigerant to an (intermediate) pressure of 5 to 40 bar is effected in the intermediate relief device (a) arranged between the condenser (1) and the collecting container (3).Type: ApplicationFiled: September 8, 2011Publication date: December 29, 2011Applicant: LINDE KALTETECHNIK GMBHInventors: Bernd Heinbokel, Andreas Gernemann, Uwe Schierhorn
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Publication number: 20110314843Abstract: A refrigeration device containing CO2 a refrigerant to be circulated, including a compressor, a heat-rejecting heat exchanger, an expansion, and an evaporator which are connected to one another. The refrigeration device includes a first portion and a second portion, the second portion having a higher temperature relative to the first portion when the refrigeration device is in operation. A heat-reclaim heat exchanger is provided at a given location in the second portion, provided to transfer heat to a fluid for further use as a source of heated fluid.Type: ApplicationFiled: December 17, 2010Publication date: December 29, 2011Inventors: Bernd Heinbokel, Siegfried Haaf, Neelkanth S. Gupte, Ulf J. Jonsson, Tobias H. Sienel
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Patent number: 8069684Abstract: Refrigeration circuit (2) for circulating a refrigerant in a predetermined flow direction, having in flow direction a heat rejecting heat exchanger (4), an evaporator throttle valve (8), an evaporator (10), a compressor (22), an internal heat exchanger (16) placed with its “cool side” between the evaporator (10) and the compressor (22), an inlet temperature sensor (24) located between the evaporator (10) and the internal heat exchanger (16) and an outlet temperature sensor (26) located between the internal heat exchanger (16) and the compressor (22), and a control (28) for controlling the evaporator throttle valve (8) based on the inlet and outlet temperature sensor measurement, wherein the control is adapted for controlling the evaporator throttle valve (8) based on an inlet temperature setpoint at the inlet temperature sensor (24); and shifting the inlet temperature setpoint based on the outlet temperature sensor measurement (26).Type: GrantFiled: February 18, 2005Date of Patent: December 6, 2011Assignee: Carrier CorporationInventors: Bernd Heinbokel, Urs Schmid
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Publication number: 20110113822Abstract: The invention relates to a refrigerating circuit (10) adapted to circulate, in operation, a refrigerant in a predetermined flow direction, said refrigerating circuit (10) comprising a compressor stage (12), said compressor stage (12) having a suction side and a pressure side, and at least one heat dissipating heat exchanging unit (14) connected to said pressure side of said compressor stage (12) via a pressure line (24), said heat dissipating heat exchanging unit (14) having an inlet side (14a) and an outlet side (14b) and including a condenser/gas cooler unit (16), and a liquid refrigerant return line (26) connecting said outlet side of said heat dissipating heat exchanging unit (14) to said pressure line (24).Type: ApplicationFiled: June 25, 2009Publication date: May 19, 2011Applicant: CARRIER CORPORATIONInventors: Christian Douven, Bernd Heinbokel, Markus Hafkemeyer
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Patent number: 7878023Abstract: Refrigeration circuit (1, 1?) for circulating a refrigerant in a predetermined flow direction through at least one functionally disconnectable component, the refrigeration circuit having in flow direction an expansion device (b, b?, 26, 26?, 33), an evaporator, a compressor (2, 2?, 29, 36) and a heat-rejecting heat exchanger (6, 20), wherein an upstream-side shut-off valve is provided upstream of the component and a downstream-side shut-off valve is provided downstream of the component, wherein at least one of these shut-off valves is a non-return valve (a, c, 25, 27, 32, 34). Preferably, the component has in flow direction the expansion device (b, b?, 26, 26?, 33) and the evaporator (12, 12?, E1, E1?, E2) or the compressor (2, 2?). Preferably the non-return valve (a, c, 25, 27, 32, 34) is lockable in it's open position.Type: GrantFiled: February 21, 2005Date of Patent: February 1, 2011Assignee: Carrier CorporationInventor: Bernd Heinbokel
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Publication number: 20100300122Abstract: A Refrigerating circuit according to the invention comprises a compressor, a condenser/gas cooler, an expansion device (2), an evaporator (4), and refrigerant conduits circulating a refrigerant therethrough. The evaporator (4) comprises refrigerant piping comprising a plurality of substantially horizontal layers (8, 10) each layer comprising a plurality of pipes (8a-8h, 10a-10h) the pipes being substantially perpendicular to an air flow direction (12) from an air inlet region to an air outlet region of the evaporator (4). A pipe selected from the group of the second pipe (8b) to the last but one pipe (8g) in the bottom layer (8) forms the entry pipe (8c) of the evaporator (4). The entry pipe (8c) is connectable with the expansion device (2) to provide a refrigerating mode, and the entry pipe (8c) is connectable with a hot gas conduit (6) to provide a defrosting mode for the evaporator (4).Type: ApplicationFiled: February 16, 2009Publication date: December 2, 2010Applicant: CARRIER CORPORATIONInventor: Bernd Heinbokel
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Publication number: 20100281882Abstract: A Refrigerating system (2) comprises a refrigerating circuit (4) having, in flowing direction, a compressor (8), a gas cooler (10), a first expansion device (12), an intermediate pressure container (14), a second expansion device (16), an evaporator (18) and refrigerant conduits (22, 24, 26, 28, 30, 32) circulating a refrigerant therethrough. The first expansion device (12) expands the refrigerant to an intermediate pressure level. A first refrigerant conduit (22) of the refrigerant conduits (22, 24, 26, 28, 30, 32) connects the compressor (8) and the gas cooler (10), and a second refrigerant conduit (24) of the refrigerant conduits (22, 24, 26, 28, 30, 32) connects the gas cooler (10) and the first expansion device (12), the first refrigerant conduit (22), the gas cooler (10), and the second refrigerant conduit (24) forming a transcritical portion of the refrigerating circuit (4).Type: ApplicationFiled: November 13, 2007Publication date: November 11, 2010Applicant: CARRIER CORPORATIONInventors: Bernd Heinbokel, Siegfried Haaf
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Publication number: 20100247331Abstract: A set of piston compressors (2, 4, 6, 8) for use in a refrigeration system comprises a fluid connection (10) between the crank cases of the piston compressors (2, 4, 6, 8) for allowing oil compensation between said piston compressors (2, 4, 6, 8); and a control unit (12) which in operation monitors the running time of each piston compressor (2, 4, 6, 8) and, in case all piston compressors (2, 4, 6, 8) are running, subsequently interrupts the operation of a respective piston compressor (2, 4, 6, 8) for a predetermined period of time for oil compensation if its running time reaches a predetermined maximum running time.Type: ApplicationFiled: October 18, 2007Publication date: September 30, 2010Applicant: CARRIER CORPORATIONInventors: Bernd Heinbokel, Heinz Gassen, Kai Munker
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Publication number: 20090223245Abstract: Refrigeration circuit (1, 1?) for circulating a refrigerant in a predetermined flow direction through at least one functionally disconnectable component, the refrigeration circuit having in flow direction an expansion device (b, b?, 26, 26?, 33), an evaporator, a compressor (2, 2?, 29, 36) and a heat-rejecting heat exchanger (6, 20), wherein an upstream-side shut-off valve is provided upstream of the component and a downstream-side shut-off valve is provided downstream of the component, wherein at least one of these shut-off valves is a non-return valve (a, c, 25, 27, 32, 34). Preferably, the component has in flow direction the expansion device (b, b?, 26, 26?, 33) and the evaporator (12, 12?, E1, E1?, E2) or the compressor (2, 2?). Preferably the non-return valve (a, c, 25, 27, 32, 34) is lockable in it's open position.Type: ApplicationFiled: February 21, 2005Publication date: September 10, 2009Applicant: CARRIER CORPORATIONInventor: Bernd Heinbokel
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Publication number: 20090120108Abstract: A refrigeration device containing CO2 a refrigerant to be circulated, comprising: a compressor (1, 10, 11), a heat-rejecting heat exchanger (3, 30), an expansion device (7a, 7b, 70a, 70b, 71), and an evaporator (8a, 8b, 80a, 80b, 81) which are connected to one another, wherein the refrigeration device comprises a first portion (61, 71, 81, 11, 92, 10) and a second portion (60, 70a, 80a, 90, 10), the second portion having a higher temperature relative to the first portion when the refrigeration device is in operation; and a heat-reclaim heat exchanger (E1, E2, E3, E4) provided at a given location in the second portion, provided to transfer heat to a fluid for further use as a source of heated fluid.Type: ApplicationFiled: February 18, 2005Publication date: May 14, 2009Inventors: Bernd Heinbokel, Siegfried Haaf, Neelkanth S. Gupte, Ulf J. Jonsson, Tobias H. Sienel