Patents by Inventor Bruce P. Biederman
Bruce P. Biederman 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: 7289325Abstract: A power conversion system which uses a plurality of transistors to convert DC power to AC power is made more efficient by the use of liquid refrigerant to cool the transistors. A plurality of passages are formed in a cold plate on which the transistors are mounted, and liquid refrigerant is flashed into the passages to cool the cold plate and the transistors. The liquid refrigerant can by derived from a condenser from an organic rankine cycle or a vapor compression cycle.Type: GrantFiled: October 19, 2005Date of Patent: October 30, 2007Assignee: UTC Power CorporationInventors: Joost J. Brasz, Bruce P. Biederman
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Patent number: 7254949Abstract: A machine designed as a centrifugal compressor is applied as an organic rankine cycle turbine by operating the machine in reverse. In order to accommodate the higher pressures when operating as a turbine, a suitable refrigerant is chosen such that the pressures and temperatures are maintained within established limits. Such an adaptation of existing, relatively inexpensive equipment to an application that may be otherwise uneconomical, allows for the convenient and economical use of energy that would be otherwise lost by waste heat to the atmosphere.Type: GrantFiled: November 13, 2002Date of Patent: August 14, 2007Assignee: UTC Power CorporationInventors: Joost J. Brasz, Bruce P. Biederman
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Patent number: 7174716Abstract: A machine designed as a centrifugal compressor is applied as an organic rankine cycle turbine by operating the machine in reverse. In order to accommodate the higher pressures when operating as a turbine, a suitable refrigerant is chosen such that the pressures and temperatures are maintained within established limits. Such an adaptation of existing, relatively inexpensive equipment to an application that may be otherwise uneconomical, allows for the convenient and economical use of energy that would be otherwise lost by waste heat to the atmosphere.Type: GrantFiled: November 13, 2002Date of Patent: February 13, 2007Assignee: UTC Power LLCInventors: Joost J. Brasz, Bruce P. Biederman
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Patent number: 7146813Abstract: A machine designed as a centrifugal compressor is applied as an organic rankine cycle turbine by operating the machine in reverse. In order to accommodate the higher pressures when operating as a turbine, a suitable refrigerant is chosen such that the pressures and temperatures are maintained within established limits. Such an adaptation of existing, relatively inexpensive equipment to an application that may be otherwise uneconomical, allows for the convenient and economical use of energy that would be otherwise lost by waste heat to the atmosphere.Type: GrantFiled: November 13, 2002Date of Patent: December 12, 2006Assignee: UTC Power, LLCInventors: Joost J. Brasz, Bruce P. Biederman
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Patent number: 7013644Abstract: In order to effectively extract the waste heat from a reciprocating engine, the normal heat exchanger components of an engine are replaced with one or more heat exchangers which have the motive fluid of an organic rankine cycle system flowing therethrough. With the heat transfer in the plurality of heat exchangers, the engine is maintained at a reasonable cool temperature and the extracted heat is supplied to an ORC turbine to generate power. The heat is derived from a plurality of sources within the reciprocating engine, and at least two of those sources have their fluids passing through the same heat exchanger. In one embodiment, the engine coolant and the engine lubricant pass through the heat exchanger in the same direction, and the ORC motive fluid passes therethrough in a counterflow relationship.Type: GrantFiled: November 18, 2003Date of Patent: March 21, 2006Assignee: UTC Power, LLCInventors: Thomas D. Radcliff, Bruce P. Biederman
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Patent number: 6989989Abstract: A power conversion system which uses a plurality of transistors to convert DC power to AC power is made more efficient by the use of liquid refrigerant to cool the transistors. A plurality of passages are formed in a cold plate on which the transistors are mounted, and liquid refrigerant is flashed into the passages to cool the cold plate and the transistors. The liquid refrigerant can by derived from a condenser from an organic rankine cycle or a vapor compression cycle.Type: GrantFiled: June 17, 2003Date of Patent: January 24, 2006Assignee: UTC Power LLCInventors: Joost J. Brasz, Bruce P. Biederman
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Patent number: 6962056Abstract: An organic rankine cycle system is combined with a vapor compression cycle system with the turbine generator of the organic rankine cycle generating the power necessary to operate the motor of the refrigerant compressor. The vapor compression cycle is applied with its evaporator cooling the inlet air into a gas turbine, and the organic rankine cycle is applied to receive heat from a gas turbine exhaust to heat its boiler within one embodiment, a common condenser is used for the organic rankine cycle and the vapor compression cycle, with a common refrigerant, R-245a being circulated within both systems. In another embodiment, the turbine driven generator has a common shaft connected to the compressor to thereby eliminate the need for a separate motor to drive the compressor.Type: GrantFiled: July 22, 2004Date of Patent: November 8, 2005Assignee: Carrier CorporationInventors: Joost J. Brasz, Bruce P. Biederman
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Patent number: 6892522Abstract: An organic rankine cycle system is combined with a vapor compression cycle system with the turbine generator of the organic rankine cycle generating the power necessary to operate the motor of the refrigerant compressor. The vapor compression cycle is applied with its evaporator cooling the inlet air into a gas turbine, and the organic rankine cycle is applied to receive heat from a gas turbine exhaust to heat its boiler within one embodiment, a common condenser is used for the organic rankine cycle and the vapor compression cycle, with a common refrigerant, R-245a being circulated within both systems. In another embodiment, the turbine driven generator has a common shaft connected to the compressor to thereby eliminate the need for a separate motor to drive the compressor.Type: GrantFiled: November 13, 2002Date of Patent: May 17, 2005Assignee: Carrier CorporationInventors: Joost J. Brasz, Bruce P. Biederman
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Patent number: 6880344Abstract: An organic rankine cycle system is combined with a vapor compression cycle system with the turbine generator of the organic rankine cycle generating the power necessary to operate the motor of the refrigerant compressor. The vapor compression cycle is applied with its evaporator cooling the inlet air into a gas turbine, and the organic rankine cycle is applied to receive heat from a gas turbine exhaust to heat its boiler within one embodiment, a common condenser is used for the organic rankine cycle and the vapor compression cycle, with a common refrigerant, R-245a being circulated within both systems. In another embodiment, the turbine driven generator has a common shaft connected to the compressor to thereby eliminate the need for a separate motor to drive the compressor.Type: GrantFiled: June 17, 2003Date of Patent: April 19, 2005Assignee: UTC Power, LLCInventors: Thomas D. Radcliff, Bruce P. Biederman, Joost J. Brasz
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Publication number: 20040255593Abstract: An organic rankine cycle system is combined with a vapor compression cycle system with the turbine generator of the organic rankine cycle generating the power necessary to operate the motor of the refrigerant compressor. The vapor compression cycle is applied with its evaporator cooling the inlet air into a gas turbine, and the organic rankine cycle is applied to receive heat from a gas turbine exhaust to heat its boiler within one embodiment, a common condenser is used for the organic rankine cycle and the vapor compression cycle, with a common refrigerant, R-245a being circulated within both systems. In another embodiment, the turbine driven generator has a common shaft connected to the compressor to thereby eliminate the need for a separate motor to drive the compressor.Type: ApplicationFiled: July 22, 2004Publication date: December 23, 2004Applicant: Carrier CorporationInventors: Joost J. Brasz, Bruce P. Biederman
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Publication number: 20040257840Abstract: A power conversion system which uses a plurality of transistors to convert DC power to AC power is made more efficient by the use of liquid refrigerant to cool the transistors. A plurality of passages are formed in a cold plate on which the transistors are mounted, and liquid refrigerant is flashed into the passages to cool the cold plate and the transistors. The liquid refrigerant can by derived from a condenser from an organic rankine cycle or a vapor compression cycle.Type: ApplicationFiled: June 17, 2003Publication date: December 23, 2004Applicant: UTC Power, LLCInventors: Joost J. Brasz, Bruce P. Biederman
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Publication number: 20040088993Abstract: An organic rankine cycle system is combined with a vapor compression cycle system with the turbine generator of the organic rankine cycle generating the power necessary to operate the motor of the refrigerant compressor. The vapor compression cycle is applied with its evaporator cooling the inlet air into a gas turbine, and the organic rankine cycle is applied to receive heat from a gas turbine exhaust to heat its boiler within one embodiment, a common condenser is used for the organic rankine cycle and the vapor compression cycle, with a common refrigerant, R-245a being circulated within both systems. In another embodiment, the turbine driven generator has a common shaft connected to the compressor to thereby eliminate the need for a separate motor to drive the compressor.Type: ApplicationFiled: June 17, 2003Publication date: May 13, 2004Inventors: Thomas D. Radcliff, Bruce P. Biederman, Joost J. Brasz
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Publication number: 20040088985Abstract: A machine designed as a centrifugal compressor is applied as an organic rankine cycle turbine by operating the machine in reverse. In order to accommodate the higher pressures when operating as a turbine, a suitable refrigerant is chosen such that the pressures and temperatures are maintained within established limits. Such an adaptation of existing, relatively inexpensive equipment to an application that may be otherwise uneconomical, allows for the convenient and economical use of energy that would be otherwise lost by waste heat to the atmosphere.Type: ApplicationFiled: November 13, 2002Publication date: May 13, 2004Applicant: Carrier CorporationInventors: Joost J. Brasz, Bruce P. Biederman
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Publication number: 20040088982Abstract: A machine designed as a centrifugal compressor is applied as an organic rankine cycle turbine by operating the machine in reverse. In order to accommodate the higher pressures when operating as a turbine, a suitable refrigerant is chosen such that the pressures and temperatures are maintained within established limits. Such an adaptation of existing, relatively inexpensive equipment to an application that may be otherwise uneconomical, allows for the convenient and economical use of energy that would be otherwise lost by waste heat to the atmosphere.Type: ApplicationFiled: November 13, 2002Publication date: May 13, 2004Applicant: Carrier CorporationInventors: Joost J. Brasz, Bruce P. Biederman
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Publication number: 20040088986Abstract: A machine designed as a centrifugal compressor is applied as an organic rankine cycle turbine by operating the machine in reverse. In order to accommodate the higher pressures when operating as a turbine, a suitable refrigerant is chosen such that the pressures and temperatures are maintained within established limits. Such an adaptation of existing, relatively inexpensive equipment to an application that may be otherwise uneconomical, allows for the convenient and economical use of energy that would be otherwise lost by waste heat to the atmosphere.Type: ApplicationFiled: November 13, 2002Publication date: May 13, 2004Applicant: Carrier CorporationInventors: Joost J. Brasz, Bruce P. Biederman
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Publication number: 20040088992Abstract: An organic rankine cycle system is combined with a vapor compression cycle system with the turbine generator of the organic rankine cycle generating the power necessary to operate the motor of the refrigerant compressor. The vapor compression cycle is applied with its evaporator cooling the inlet air into a gas turbine, and the organic rankine cycle is applied to receive heat from a gas turbine exhaust to heat its boiler within one embodiment, a common condenser is used for the organic rankine cycle and the vapor compression cycle, with a common refrigerant, R-245a being circulated within both systems. In another embodiment, the turbine driven generator has a common shaft connected to the compressor to thereby eliminate the need for a separate motor to drive the compressor.Type: ApplicationFiled: November 13, 2002Publication date: May 13, 2004Applicant: Carrier CorporationInventors: Joost J. Brasz, Bruce P. Biederman
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Patent number: 6663346Abstract: The present invention relates to a bleed system for use in a gas turbine engine. The bleed system comprises a plurality of blades with each of the blades having an airfoil member and a platform structure. The bleed system further has at least one interblade passage formed by adjacent ones of the airfoil members and an inner endwall formed by the platform structures. A bleed hole is located in the at least one interblade passage for extracting a portion of a fluid passing therethrough. The bleed positioning within the stator passage, both axially and circumferentially, is selected for optimum balance of static pressure and tangential velocity.Type: GrantFiled: January 17, 2002Date of Patent: December 16, 2003Assignee: United Technologies CorporationInventors: Peter M. Munsell, Bruce P Biederman, Matthew D Nicolson, David P. Dube
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Publication number: 20030133796Abstract: The present invention relates to a bleed system for use in a gas turbine engine. The bleed system comprises a plurality of blades with each of the blades having an airfoil member and a platform structure. The bleed system further has at least one interblade passage formed by adjacent ones of the airfoil members and an inner endwall formed by the platform structures. A bleed hole is located in the at least one interblade passage for extracting a portion of a fluid passing therethrough. The bleed positioning within the stator passage, both axially and circumferentially, is selected for optimum balance of static pressure and tangential velocity.Type: ApplicationFiled: January 17, 2002Publication date: July 17, 2003Inventors: Peter M. Munsell, Bruce P. Biederman, Matthew D. Nicolson, David P. Dube
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Patent number: 6375419Abstract: A flow directing element, such as a vane for a turbine engine compressor, has a variable chord to improve compressor surge margin without compromising compressor efficiency. The vane has an airfoil section (70) with a leading edge (80), a trailing edge (82), a root (84) and a tip (88). The chord of the airfoil generally increases from a first value at the root to a second larger value at a part span location (110) intermediate the root and the tip so that when the airfoil is installed in a compressor, the location of the trailing edge becomes closer to the compressor discharge as the spanwise distance from the root increases. The chord is generally constant from the part span location to the tip.Type: GrantFiled: June 2, 1995Date of Patent: April 23, 2002Assignee: United Technologies CorporationInventors: Charles R. LeJambre, Bruce P. Biederman, Aaron J. Gleixner, Chad J. Yetka
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Patent number: RE38040Abstract: A swept turbomachinery blade for use in a cascade of such blades is disclosed. The blade (12) has an airfoil (22) uniquely swept so that an endwall shock (64) of limited radial extent and a passage shock (66) are coincident and a working medium (48) flowing through interblade passages (50) is subjected to a single coincident shock rather than the individual shocks. In one embodiment of the invention the forwardmost extremity of the airfoil defines an inner transition point (40) located at an inner transition radius rt-inner. The sweep angle of the airfoil is nondecreasing with increasing radius from the inner transition radius to an outer transition radius rt-outer, radially inward of the airfoil tip (26), and is nonincreasing with increasing radius between the outer transition radius and the airfoil tip.Type: GrantFiled: June 30, 1999Date of Patent: March 18, 2003Assignee: United Technologies CorporationInventors: David A. Spear, Bruce P. Biederman, John A. Orosa