For comparison, a standard internal combustion engine operates only at 14 percent efficiency. Once proven and tested, MacDowell believes his idea will revolutionize the hybrid engine industry leading to the eventual end of the internal combustion engine. The hybrid Stirling engine/generator as described herein has the benefits of a Stirling engine such as low emissions, long life and quiet operation. 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. In a preferred embodiment, the battery is a lead-acid battery. As described above, the optimal fuel-air ratio of the fuel-air mixture decreases as the temperature of the preheated air increases. Accordingly, the fuel-air ratio is first controlled by the controller (shown in, A given fuel will only ignite over a limited range of fuel-air ratios. In his model, the Stirling engine runs at a fixed RPM generating electricity that is used to charge the batteries, which drive motors that propel the vehicle. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). NEW POWER CONCEPTS LLC, NEW HAMPSHIRE, Free format text:
4,996,841 to Meijer or controlled the pressure of the working fluid as described in U.S. Pat. The personal vehicle may have balancing capability on lateral and foe-aft places defined by the support. In a preferred embodiment, where the fuel is propane, the ignition fuel-air ratio is set to 0.1 grams propane per grams air. failures within the drive train, Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. The present invention pertains to hybrid electric vehicles utilizing an external combustion engine and in particular, a Stirling cycle engine. [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 use and method of manufacture of heat transfer pins is described in copending U.S. Pat. He also plans to submit his laboratory findings to the Texas Transportation Institute, which will verify his 100 miles per gallon claims. Hybrid electric vehicles using a stirling engine. batteries, Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors, Quantum Industrial Development Corporation, Stig G. Carlqvist Motor Consultant (C.M.C.) MacDowell coupled the engine with existing hybrid technology, creating a system that will deliver 58 miles per gallon to a Ford F-150 and at least 100 miles per gallon in a smaller SUV. In order to optimize this process, a simulation tool for Stirling vehicle was developed based in ADVISOR, a proven hybrid electric vehicle simulation software, and MARWEISS, a Stirling engine simulator. 5,701,965 and 5,971,091, both of which are herein incorporated by reference. Nos. HEVs characterised by the architecture of the hybrid electric vehicle, PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES, Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. In addition, the personal vehicle includes a controller for controlling a total power load placed on the external combustion engine so as to provide short term regulation of external combustion engine parameters. In addition to providing the optimal fuel-air ratio, the fuel and air combusted in burner. No. To access this article, please. HEVs, Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. generators driven by combustion engines, Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. 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. 6,381,958, titled Stirling Engine Thermal System Improvements, incorporated by reference above. As used in this description and the following claims, a fuel-air ratio is the ratio of the mass of the fuel to the mass of the air flowing into the combustion chamber of the burner. PAYMENT OF MAINTENANCE FEE, 12TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1553); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY. All such variations and modifications are intended to be within the scope of the present invention as defined in the appended claims. No. A personal vehicle for transporting a user over a surface including an external combustion engine. The present application is a continuation-in-part of U.S. patent application Ser. 3,940,933 to Nystrom and U.S. Pat.
In accordance with an embodiment of the invention, a personal vehicle for transporting a user over a surface includes a support for supporting the user, a ground contacting module having at least one ground contacting member and a drive arrangement for causing locomotion of the support, ground contacting module and user over a surface. The air is considered fully warmed up when it exceeds its known ignition temperature. PATENTED CASE, Free format text: series hybrid electric vehicles, Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles, Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries, Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC], Conjoint control of vehicle sub-units of different type or different function, Conjoint control of vehicle sub-units of different type or different function including control of propulsion units, Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of combustion engines, LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS, RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES, Transmissions characterised by use of other elements; Other transmissions, Transmissions characterised by use of other elements; Other transmissions characterised by the use of two or more dissimilar sources of power, e.g. [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 hybrid Stirling engine/generator is advantageously of a small size (5 kW or less) with ultra low emissions and may be implemented in a variety of personal vehicles. 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. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR, Other domestic- or space-heating systems using heat pumps, Indexing codes relating to the type of vehicle, Input parameters relating to a particular sub-units, Energy storage means for electrical energy, Output or target parameters relating to a particular sub-units, INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY, CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE, Adaptations for driving cycles by electric motor, Stirling type engines having closed regenerative thermodynamic cycles with flow controlled by volume changes, Stirling type engines having closed regenerative thermodynamic cycles with flow controlled by volume changes having their pistons and displacers each in separate cylinders, FLUID HEATERS, e.g. 1. For a sudden increase in the load, The adjustment current may be selected based on the known V-I characteristics of the battery. 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. Using this thermopile technology, aStirling-powered vehiclecan drive at highway speeds without having to recharge. 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. The air flow rate may be adjusted, for example, in response to a change in the fuel flow rate or a change in the air preheat temperature. 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. In order to optimize this process, a simulation tool for Stirling vehicle was developed based in ADVISOR, a proven hybrid electric vehicle simulation software, and MARWEISS, a Stirling engine simulator. No. The Stirling cycle engine and generator combination. {/102}Depending on the size of heater head. In addition, minimizing emissions of carbon monoxide (CO), hydrocarbons (HC) and oxides of nitrogen (NOx) requires a lean fuel-air mixture which still achieves complete combustion. Stay tuned. For terms and use, please refer to our Terms and Conditions Prior attempts to increase the responsiveness of a Stirling cycle engine provided a variable dead space for the working fluid as described in U.S. Pat. The marketing success of hybrid vehicles significantly depends on the selection, integration and cost of the energy systems. The external combustion engine and the generator may be housed in a hermetically sealed pressure vessel. 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. In another embodiment, the personal vehicle includes a power output coupled to the energy storage device for providing power to an external load. At ignition, an ignition fuel-air ratio chosen which is equal to or less than the stoichiometric fuel-air ratio corresponding to the fuel being used. No. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. In one embodiment, the external combustion engine is a Stirling cycle engine. 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. How much is Apple Music, and how can you get it for free? The vehicle further includes a power output coupled to the energy storage device for providing power to an external load, while the vehicle is stationary. A personal vehicle for transporting a user over a surface, the personal vehicle comprising: b. a ground contacting module having at least one ground contacting member to which the support is mounted, the ground contacting module for suspending the user in the support over the surface, the support and ground contacting module being components of an assembly; c. a drive arrangement coupled to the assembly for causing locomotion of the assembly and the user over the surface, the drive arrangement comprising: i. an external combustion engine for generating mechanical energy and thermal energy; ii.
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