stirling engine hybrid vehicle

The power control system, therefore, is designed to account for the lengthy response time of a Stirling cycle engine.

With a personal account, you can read up to 100 articles each month for free. Upgrade your lifestyleDigital Trends helps readers keep tabs on the fast-paced world of tech with all the latest news, fun product reviews, insightful editorials, and one-of-a-kind sneak peeks. Typical components of the burner and preheater assemblies, in accordance with embodiments of the present invention, are described with reference to, The overall efficiency of a thermal engine is dependent in part on the efficiency of heat transfer between the combustion gases and the working fluid of the engine. In accordance with an embodiment of the present invention, low emissions and high efficiency may be provided by producing a pre-mixed flame even in the presence of air heated above the auto-ignition temperature of the fuel, and additionally, by minimizing the pressure drop between the air inlet and the flame region thereby minimizing blower power consumption. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). The analysis of the simulation results can be employed to identify the critical features of the Stirling-powered vehicle. As described above, the optimal fuel-air ratio of the fuel-air mixture decreases as the temperature of the preheated air increases. The closed-cycle air engine uses the expansion of hot air and the compression of cold air to generate the power needed to drive an engine. For example, the ignition temperature for propane is 490 C. In a preferred embodiment, where the fuel is propane, the start fuel-air ratio is 0.052 grams fuel to gram air, which results in approximately 4% oxygen in the exhaust of the engine. The described embodiments of the invention are intended to be merely exemplary and numerous variations and modifications will be apparent to those skilled in the art. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. No. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. Stirling cycle type engines the engine being of the free piston type, Controlling by varying the rate of flow or quantity of the working gas, Combustion-product positive-displacement engine plants, Combustion-product positive-displacement engine plants with reciprocating-piston engines, DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. SAE International is a global association of more than 128,000 engineers and related technical experts in the aerospace, automotive and commercial-vehicle industries. Using this thermopile technology, aStirling-powered vehiclecan drive at highway speeds without having to recharge. [2] The simulation tool allows the study of Stirlingpowered vehicles in conventional or hybrid electric (series, parallel or split) configurations, determining parameters of the vehicle like fuel consumption, power output, emissions, energy flow and the engine's temperature profile.

The run fuel-air ratio in the preferred embodiment is 0.026 grams fuel to gram air, which results in approximately 13% oxygen in the exhaust of the engine. He took a Stirling engine, a type of engine developed 200 years ago, and added some 21st-century technology to it. The vehicle includes a generator for converting the mechanical energy produced by the external combustion engine to electrical energy and an energy storage device for storing power provided by the generator and for providing power to the external combustion engine and the assembly. The present application is a continuation-in-part of U.S. patent application Ser. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. Order URL: Abstract reprinted with permission of SAE International. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. generators driven by combustion engines using DC generators and DC motors, Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. In yet another embodiment, the personal vehicle has modes in which it is not statically stable. This document is focused in the application of Stirling engines as the power source for automobile propulsion. failures within the drive train relating to electric energy storage systems, e.g. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00, Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. Typically, the combustion engine is an internal combustion engine. The drive arrangement includes an external combustion engine for generating mechanical energy and thermal energy, a generator for converting the mechanical energy produced by the external combustion engine to electrical energy and an energy storage device for storing power provided by the generator and for providing power to the external combustion engine and the assembly. As mentioned, one type of external combustion engine which may be used in a hybrid electric vehicle is a Stirling cycle engine. In general, a hybrid electric vehicle combines a combustion engine with a battery and an electric motor. The analysis of the simulation results can be employed to identify the critical features of the Stirling-powered vehicle. The invention will be more readily understood by reference to the following description taken with the accompanying drawings, in which: In accordance with an embodiment of the invention, a personal vehicle is provided that includes a hybrid Stirling engine/generator to provide power to the vehicle. The Stirling cycle engine and generator combination. 2, 2000, which application is herein incorporated by reference in its entirety. No. MacDowell borrowed one of these Stirling engines from NASA and began experimenting with it to see if he could use the regenerative engine with 21st-century automotive know-how. The history of Stirling cycle engines is described in detail in Walker. All such variations and modifications are intended to be within the scope of the present invention as defined in the appended claims. The drive arrangement includes an external combustion engine for generating mechanical energy and thermal energy, a generator for converting the mechanical energy produced by the external combustion engine to electrical energy and an energy storage device for storing power provided by the generator and for providing power to the external combustion engine and the assembly. The CO and HC emissions will continue to increase as more air is added to the fuel-air mixture until the flame extinguishes at a Lean Blow-Out limit (LBO). A Stirling cycle engine produces both mechanical energy and heat energy appropriate for space heating. Incomplete combustion of the fuel-air mixture produces large amounts of CO and HC. piezoelectric road installing pavement bill harness otherwise allow lost could california power travel cars greenoptimistic In addition, the hybrid Stirling engine/generator has good throttle response and instant power as required by a vehicle for operation. turbine micro jet engine jets bladon hybrid turbines electric powered jaguar motor rover cars gas land vehicle pistonheads turbina tech HEAT PUMPS, IN GENERAL, Fluid heaters having electrical generators, Fluid heaters having electrical generators with combustion engines, GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS, TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE, CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION, Other road transportation technologies with climate change mitigation effect, Energy storage systems for electromobility, e.g. SAE Transactions 2001 SAE International 3,940,933 to Nystrom and U.S. Pat. As more air is added to the fuel, the emissions of CO, HC and NOx decrease until the amount of air is large enough that the flame becomes unstable. an energy storage device coupled to the output of the generator, for storing power provided by the generator and for providing electric power to the external combustion engine and locomotive power to the assembly; and, iv. HEVs characterised by apparatus, components or means specially adapted for HEVs, Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. The response time of an internal combustion engine, on the other hand, is very short because the combustion gas is the working fluid and can be directly controlled by the fuel flow rate. The marketing success of hybrid vehicles significantly depends on the selection, integration and cost of the energy systems. The present invention pertains to hybrid electric vehicles utilizing an external combustion engine and in particular, a Stirling cycle engine.

For comparison, a standard internal combustion engine operates only at 14 percent efficiency. The foregoing references are hereby incorporated by reference in their entirety. For a sudden increase in the load, The adjustment current may be selected based on the known V-I characteristics of the battery. [2] The simulation tool allows the study of Stirling-powered vehicles in conventional or hybrid electric (series, parallel or split) configurations, determining parameters of the vehicle like fuel consumption, power output, emissions, energy flow and the engine's temperature profile. The personal vehicle includes a controller for controlling a total power load placed on the external combustion engine providing short term regulation of external combustion engine parameters. PATENTED CASE, Free format text: In a preferred embodiment, the battery is a lead-acid battery. downsizing engine cylinder four stirling engine sunnytech m14 sandbox No. The internal combustion engine, dominant of the vehicle market, has been the option of choice for auxiliary power unit of the hybrid vehicle, although other power sources as fuel cells, Stirling engines and gas turbines have been employed as well [1]. How much is Apple Music, and how can you get it for free? a drive motor coupled to the energy storage device and the assembly, the drive motor powered entirely by the locomotive power provided by the energy storage device; and. batteries or capacitors, Electric propulsion with power supplied within the vehicle, Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. As a result, the optimal fuel-air ratio decreases as the temperature of the preheated air increases during the warmup phase of the engine. PAYMENT OF MAINTENANCE FEE, 12TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1553); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY. 4,996,841 to Meijer or controlled the pressure of the working fluid as described in U.S. Pat.

The joint action of power sources and energy storage systems for energizing the vehicle improves the vehicle's fuel economy while reducing its pollutant emissions and noise levels, challenging automotive designers to optimize vehicle's cost, weight and control. In one embodiment, the external combustion engine is a Stirling cycle engine. ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:KAMEN, DEAN L.;LANGENFELD, CHRISTOPHER C.;NORRIS, MICHAEL;AND OTHERS;REEL/FRAME:014256/0946;SIGNING DATES FROM 20030501 TO 20030701, Free format text: MacDowell also redesigned the Stirling engine to have the dimensions and appearance of a standard four-cylinder engine, making it compatible with existing automobiles.

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