Patents by Inventor Ritindar Singh
Ritindar Singh 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: 7971438Abstract: Environmental concerns have resulted in consideration of the effects of condensation trails from gas turbine engines. By provision of a condensation stage in a heat exchanger arrangement for a gas turbine engine the level of condensation within a final exhaust gas flow G from an engine is reduced. Furthermore, by cooling of the exhaust gas flows for mixing with by-pass air flows a water partial pressure at an exhaust gas exit temperature can be provided which is below the eutectic liquid to vapor phase transition and therefore avoid condensation (contrail) formation.Type: GrantFiled: May 3, 2007Date of Patent: July 5, 2011Assignee: Rolls-Royce plcInventors: Mark D Taylor, Frank G Noppel, Ritindar Singh
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Patent number: 7707817Abstract: A fuel processor (10) comprises a supply of natural gas (12) and a compressor (14), which compresses the natural gas and supplies the natural gas to a partial oxidation reactor (16). A supply of oxygen (20) supplies the oxygen to the partial oxidation reactor (16). The partial oxidation reactor (16) partially reacts the natural gas and the oxygen to form a mixture comprising hydrogen and carbon dioxide. The partial oxidation reactor (16) supplies the mixture of hydrogen and carbon dioxide to a turbine (20). The turbine (20) is arranged to drive the compressor (14). The turbine (20) expands and cools the mixture of hydrogen and carbon dioxide and supplies the mixture of hydrogen and carbon dioxide to a fuel cell stack (22) requiring hydrogen and/or carbon dioxide.Type: GrantFiled: January 31, 2006Date of Patent: May 4, 2010Assignee: Rolls-Royce, PLLCInventors: Gerard D Agnew, Ritindar Singh
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Publication number: 20080072577Abstract: Environmental concerns have resulted in consideration of the effects of condensation trails from gas turbine engines. By provision of a condensation stage in a heat exchanger arrangement for a gas turbine engine the level of condensation within a final exhaust gas flow G from an engine is reduced. Furthermore, by cooling of the exhaust gas flows for mixing with by-pass air flows a water partial pressure at an exhaust gas exit temperature can be provided which is below the eutectic liquid to vapour phase transition and therefore avoid condensation (contrail) formation.Type: ApplicationFiled: May 3, 2007Publication date: March 27, 2008Inventors: Mark Taylor, Frank Noppel, Ritindar Singh
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Patent number: 7251582Abstract: Methods for estimating performance of and/or detecting faults in components of a multi-component system, where the performance of each component is defined by one or more performance parameters x related to measurement parameters z that can be expressed as a function of the performance and operating parameters defining an operating condition of the system. The methods include: defining a series of fault classes corresponding to possible outcomes of faulty components; creating an initial population of strings for each fault class, each including a plurality of elements corresponding to the performance and operating parameters, values being assigned to the string elements which represent estimated values of said parameters and are constrained only to indicate fault affected values for performance parameters of the fault affected component of the respective class; and optimising an objective function which gives a measure of the consistency between measured and calculated values of the measurement parameters.Type: GrantFiled: January 8, 2004Date of Patent: July 31, 2007Assignee: Rolls-Royce, PLCInventors: Ritindar Singh, Suresh Sampath
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Publication number: 20060275633Abstract: A fuel processor (10) comprises a supply of natural gas (12) and a compressor (14), which compresses the natural gas and supplies the natural gas to a partial oxidation reactor (16). A supply of oxygen (20) supplies the oxygen to the partial oxidation reactor (16). The partial oxidation reactor (16) partially reacts the natural gas and the oxygen to form a mixture comprising hydrogen and carbon dioxide. The partial oxidation reactor (16) supplies the mixture of hydrogen and carbon dioxide to a turbine (20). The turbine (20) is arranged to drive the compressor (14). The turbine (20) expands and cools the mixture of hydrogen and carbon dioxide and supplies the mixture of hydrogen and carbon dioxide to a fuel cell stack (22) requiring hydrogen and/or carbon dioxide.Type: ApplicationFiled: January 31, 2006Publication date: December 7, 2006Inventors: Gerard Agnew, Ritindar Singh
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Publication number: 20040216004Abstract: Methods for estimating performance of and/or detecting faults in components of a multi-component system, where the performance of each component is defined by one or more performance parameters x related to measurement parameters z that can be expressed as a function of the performance and operating parameters defining an operating condition of the system. The methods include: defining a series of fault classes corresponding to possible outcomes of faulty components; creating an initial population of strings for each fault class, each including a plurality of elements corresponding to the performance and operating parameters, values being assigned to the string elements which represent estimated values of said parameters and are constrained only to indicate fault affected values for performance parameters of the fault affected component of the respective class; and optimising an objective function which gives a measure of the consistency between measured and calculated values of the measurement parameters.Type: ApplicationFiled: January 8, 2004Publication date: October 28, 2004Applicant: Rolls-Royce PLCInventors: Ritindar Singh, Suresh Sampath
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Patent number: 6606580Abstract: Methods and systems for fault diagnosis are described. The methods are in particular, although not necessarily exclusively, for the detection of faults in multi-component systems, typically power plant, whose performance is characterised by a series of indirectly measurable performance parameters. The methods proposed are based on “optimisation techniques”, involving the optimisation of an objective function to obtain an estimate of performance parameters and operating parameters. In one aspect, a method is proposed that takes account of measurement biases. In another aspect, a method for optimising an objective function is proposed, which adopts a unique Evolution Program approach in which a population of possible solutions is sub-divided into a number of groups.Type: GrantFiled: June 12, 2000Date of Patent: August 12, 2003Assignee: Rolls Royce, PLCInventors: Marco Zedda, Ankush Gulati, Ritindar Singh
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Patent number: 4027699Abstract: A fluid distribution valve includes a single inlet and a plurality of parallel outlets for connection to a plurality of fluid demand locations. Plural valve elements prevent large flows to the outlets in a first position of the valve while throttle by-passages around the valve elements allow small, usually equal flows to all demand locations in the first position. In a second position, the valve elements permit flow to the parallel outlets in proportion to the flow resistance at the demand locations.Type: GrantFiled: September 29, 1975Date of Patent: June 7, 1977Assignee: Stal-Laval Turbin ABInventors: Leif Andersson, Ritindar Singh